What are the cheapest airlines flying from Washington, D.C. to Ottawa round-trip?

Our cheapest airline available from Washington, D.C. to Ottawa is Porter Airlines. Our recent data shows that you can find tickets from as low as C$ 432 on this airline. Additional options worth looking into are Air Canada and United Airlines, starting at C$ 457 and C$ 509 round-trip. Porter Airlines is 17% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from Washington, D.C. to Ottawa one-way?

One-way options have recently been found by users for as low as C$ 179 on Air Canada. Other airlines that offer cheap prices include Porter Airlines from C$ 206 and United Airlines from C$ 234 one-way.

What is the cheapest day to fly from Washington, D.C. to Ottawa?

Travelers seeking maximum savings on their Washington, D.C. to Ottawa flight should consider departing on Tuesday mornings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular routes from Washington, D.C. to Ottawa?

The most popular route from Washington, D.C. to Ottawa is Washington, D.C. Dulles Intl - Ottawa. You may also consider Washington, D.C. Reagan-National - Ottawa or Baltimore/Washington - Ottawa.

What are the cheapest flights from Washington, D.C. to Ottawa?

On average you can expect to pay C$ 241 for a flight from Washington, D.C. to Ottawa. The cheapest flight overall is C$ 136 while the most popular route, (Washington, D.C. Dulles Intl - Ottawa) is currently priced at C$ 428.

What are the most reliable airlines from Washington, D.C. to Ottawa?

Consider GoJet (76%), Air Canada (76%) or United Airlines (76%) when booking your flight. These represent the most reliable airlines when flying from Washington, D.C. to Ottawa.

What is the cheapest day to fly round-trip from Washington, D.C. to Ottawa?

Users have found that leaving on a Monday can be a cost-effective option. It’s possible to save up to 396% on your flight compared to booking on days when demand is much higher.

How far in advance should I book a flight from Washington, D.C. to Ottawa?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 38 days in advance, which can save you up to 171% on flights from Washington, D.C. to Ottawa compared to booking the week you need them. Waiting 38 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at C$ 388. For sooner than that we have options available in the next 3 days from C$ 564.

What is the cheapest month to fly from Washington, D.C. to Ottawa?

Flights from Washington, D.C. to Ottawa lean towards being more expensive in September. Prices are generally better when you fly from Washington, D.C. to Ottawa in January, with the cheapest ticket starting at C$ 247.

What airport do you fly into for flights to Ottawa from Washington, D.C.?

Ottawa (YOW), located 10.6 km from the city centre, is the airport you fly into when you book flights from Washington, D.C. to Ottawa. 2 airlines have flights to Ottawa from Washington, D.C. on a regular basis. Booking flights from Washington, D.C. to Ottawa should not be difficult; the airport handles an average of 7 inbound flights from Washington, D.C. per day.

Can I find deals for flights from Washington, D.C. to Ottawa that include hotel bookings?

Yes. In addition to deals on Washington, D.C. to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Washington, D.C. to Ottawa?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Ottawa.

Can I find deals for business class flights from Washington, D.C. to Ottawa?

Yes. Cheapflights offers flight deals from Washington, D.C. to Ottawa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 179+ Flights from Washington, D.C. to Ottawa

The best prices from Washington, D.C. to Ottawa are usually found in January or April, booked 72 days in advance, depart on a Tuesday or Saturday and return on a Friday

Cheap flight deals from Washington, D.C. to Ottawa

Round-trip from	C$ 432
One-way from	C$ 179
Popular in	September
Cheapest in	January
Average price	C$ 530
Good round-trip deal	C$ 196 or less
Good one-way deal	C$ 197 or less

Porter Airlines
20/3-27/3
2 total stops
8h 53m total
Washington, D.C. to Ottawa

Search Deals

Air Canada
26/3
Nonstop
1h 40m total
Washington, D.C. to Ottawa

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (C$ 138 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (C$ 21 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in February 2025

Search Deals

Price to beat on a round-trip flight from Washington, D.C. (WAS) to Ottawa.

Search Deals

Price to beat on a one-way flight from Washington, D.C. (WAS) to Ottawa.

Search Deals

Find flight deals from Washington, D.C. to Ottawa

Cheapest flights from Washington, D.C. to Ottawa
Explore the most affordable flight options available from Washington, D.C. to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.

Sat 5/44:07 p.m.IAD - YOW

1 stop6h 05mAir Canada

Sat 12/45:15 a.m.YOW - IAD

1 stop4h 26mAir Canada

Deal found 19/2C$ 379

Tue 18/31:45 p.m.IAD - YOW

1 stop3h 24mPorter Airlines

Tue 25/38:40 a.m.YOW - IAD

1 stop4h 19mPorter Airlines

Deal found 18/2C$ 418

Sun 6/412:55 p.m.DCA - YOW

Nonstop1h 32mAir Canada

Sun 13/410:25 a.m.YOW - DCA

Nonstop1h 36mAir Canada

Deal found 20/2C$ 457

Thu 20/37:00 a.m.IAD - YOW

1 stop4h 14mMultiple Airlines

Mon 31/37:29 p.m.YOW - IAD

Nonstop1h 46mMultiple Airlines

Deal found 19/2C$ 466

Thu 13/36:00 a.m.BWI - YOW

3 stops33h 01mMultiple Airlines

Mon 17/34:20 p.m.YOW - BWI

1 stop28h 36mMultiple Airlines

Deal found 20/2C$ 489

Thu 13/312:55 p.m.DCA - YOW

Nonstop1h 40mUnited Airlines

Mon 17/310:30 a.m.YOW - DCA

Nonstop1h 50mUnited Airlines

Deal found 20/2C$ 509

Sat 5/48:17 a.m.IAD - YOW

Nonstop1h 41mLufthansa

Sun 6/47:29 p.m.YOW - IAD

Nonstop1h 46mLufthansa

Deal found 19/2C$ 528

Fri 14/36:59 a.m.DCA - YOW

1 stop6h 24mMultiple Airlines

Sun 16/311:35 a.m.YOW - DCA

1 stop6h 32mMultiple Airlines

Deal found 19/2C$ 541

Sat 31/58:18 a.m.IAD - YOW

Nonstop1h 40mUnited Airlines

Mon 2/67:29 p.m.YOW - IAD

Nonstop1h 41mUnited Airlines

Deal found 20/2C$ 543

Fri 30/56:45 p.m.IAD - YOW

1 stop23h 36mWestJet

Tue 10/612:20 p.m.YOW - IAD

2 stops29h 34mWestJet

Deal found 18/2C$ 986

Thu 20/36:00 a.m.DCA - YOW

2 stops18h 09mDelta

Mon 31/34:20 p.m.YOW - DCA

2 stops25h 40mDelta

Deal found 19/2C$ 1,021

Fri 30/51:00 p.m.BWI - YOW

2 stops11h 22mWestJet

Tue 10/67:15 p.m.YOW - BWI

2 stops21h 54mWestJet

Deal found 18/2C$ 1,125

Best flights from Washington, D.C. to Ottawa
Discover carefully curated flight deals from Washington, D.C. to Ottawa that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 21 February 2025.

Thu 20/37:00 a.m.IAD - YOW

1 stop4h 14mPorter Airlines

Thu 27/35:45 p.m.YOW - IAD

1 stop4h 39mPorter Airlines

Deal found 19/2C$ 432

Sun 6/412:55 p.m.DCA - YOW

Nonstop1h 32mAir Canada

Sun 13/410:25 a.m.YOW - DCA

Nonstop1h 36mAir Canada

Deal found 20/2C$ 457

Thu 20/31:45 p.m.IAD - YOW

1 stop4h 49mMultiple Airlines

Thu 27/39:45 a.m.YOW - IAD

Nonstop1h 53mMultiple Airlines

Deal found 19/2C$ 466

Thu 13/312:55 p.m.DCA - YOW

Nonstop1h 40mUnited Airlines

Mon 17/310:30 a.m.YOW - DCA

Nonstop1h 50mUnited Airlines

Deal found 20/2C$ 509

Wed 19/35:15 p.m.IAD - YOW

Nonstop1h 39mAir Canada

Wed 26/37:30 p.m.YOW - IAD

Nonstop1h 53mAir Canada

Deal found 20/2C$ 463

Thu 13/36:00 a.m.BWI - YOW

3 stops33h 01mMultiple Airlines

Mon 17/34:20 p.m.YOW - BWI

1 stop28h 36mMultiple Airlines

Deal found 20/2C$ 489

Thu 20/36:00 a.m.DCA - YOW

2 stops18h 09mDelta

Mon 31/34:20 p.m.YOW - DCA

2 stops25h 40mDelta

Deal found 19/2C$ 1,021

Wed 30/48:17 a.m.IAD - YOW

Nonstop1h 41mUnited Airlines

Wed 14/59:50 a.m.YOW - IAD

Nonstop1h 43mUnited Airlines

Deal found 20/2C$ 543

Fri 30/51:00 p.m.BWI - YOW

2 stops11h 22mWestJet

Tue 10/67:15 p.m.YOW - BWI

2 stops21h 54mWestJet

Deal found 18/2C$ 1,125

Fri 14/36:59 a.m.DCA - YOW

1 stop6h 24mMultiple Airlines

Sun 16/311:35 a.m.YOW - DCA

1 stop6h 32mMultiple Airlines

Deal found 19/2C$ 541

Tue 27/53:00 p.m.IAD - YOW

2 stops9h 22mWestJet

Thu 29/55:15 p.m.YOW - IAD

2 stops24h 39mWestJet

Deal found 20/2C$ 1,260

Tue 20/56:30 a.m.BWI - YOW

1 stop10h 36mUnited Airlines

Fri 20/65:15 a.m.YOW - BWI

2 stops8h 42mUnited Airlines

Deal found 19/2C$ 1,284

Direct flights from Washington, D.C. to Ottawa
Explore direct flight options from Washington, D.C. to Ottawa based on user searches, and compare prices and availability for your desired travel dates. Data last updated 21 February 2025.

Sun 6/412:55 p.m.DCA - YOW

Nonstop1h 32mAir Canada

Sun 13/410:25 a.m.YOW - DCA

Nonstop1h 36mAir Canada

Deal found 20/2C$ 457

Wed 19/35:15 p.m.IAD - YOW

Nonstop1h 39mAir Canada

Wed 26/37:30 p.m.YOW - IAD

Nonstop1h 53mAir Canada

Deal found 20/2C$ 463

Thu 13/312:55 p.m.DCA - YOW

Nonstop1h 40mUnited Airlines

Mon 17/310:30 a.m.YOW - DCA

Nonstop1h 50mUnited Airlines

Deal found 20/2C$ 509

Wed 30/48:17 a.m.IAD - YOW

Nonstop1h 41mUnited Airlines

Wed 14/59:50 a.m.YOW - IAD

Nonstop1h 43mUnited Airlines

Deal found 20/2C$ 543

Fri 14/312:55 p.m.DCA - YOW

Nonstop1h 40mMultiple Airlines

Wed 19/310:30 a.m.YOW - DCA

Nonstop1h 50mMultiple Airlines

Deal found 18/2C$ 608

Last-minute flights from Washington, D.C. to Ottawa
Discover last-minute flight deals from Washington, D.C. to Ottawa. Data last updated 21 February 2025 and is based on user searches.

Wed 26/28:21 a.m.BWI - YOW

1 stop8h 54mMultiple Airlines

Wed 5/34:20 p.m.YOW - BWI

1 stop7h 39mMultiple Airlines

Deal found 19/2C$ 537

Wed 26/28:15 a.m.BWI - YOW

2 stops12h 32mWestJet

Wed 5/35:55 a.m.YOW - BWI

2 stops10h 55mWestJet

Deal found 19/2C$ 1,632

Thu 27/26:00 a.m.DCA - YOW

2 stops18h 09mDelta

Tue 4/35:55 a.m.YOW - DCA

2 stops15h 05mDelta

Deal found 19/2C$ 1,483

Thu 27/211:05 a.m.DCA - YOW

2 stops13h 04mWestJet

Sun 2/35:55 a.m.YOW - DCA

2 stops14h 05mWestJet

Deal found 19/2C$ 1,705

Fri 28/22:10 p.m.IAD - YOW

1 stop4h 24mPorter Airlines

Tue 4/35:45 p.m.YOW - IAD

1 stop4h 39mPorter Airlines

Deal found 20/2C$ 732

Fri 28/212:50 p.m.IAD - YOW

Nonstop1h 39mAir Canada

Tue 4/32:05 p.m.YOW - IAD

Nonstop1h 53mAir Canada

Deal found 20/2C$ 859

Fri 28/26:00 a.m.IAD - YOW

2 stops12h 20mMultiple Airlines

Tue 4/38:40 a.m.YOW - IAD

1 stop4h 19mMultiple Airlines

Deal found 20/2C$ 871

Fri 28/26:00 a.m.DCA - YOW

2 stops7h 23mMultiple Airlines

Mon 3/35:15 a.m.YOW - DCA

2 stops12h 20mMultiple Airlines

Deal found 19/2C$ 1,335

Fri 28/212:26 p.m.BWI - YOW

2 stops11h 43mDelta

Mon 3/35:55 a.m.YOW - BWI

2 stops10h 55mDelta

Deal found 19/2C$ 1,780

Sat 1/312:55 p.m.DCA - YOW

Nonstop1h 40mAir Canada

Sat 8/32:10 p.m.YOW - DCA

1 stop5h 47mAir Canada

Deal found 20/2C$ 815

Sat 1/312:55 p.m.DCA - YOW

Nonstop1h 40mUnited Airlines

Sat 8/310:30 a.m.YOW - DCA

Nonstop1h 50mUnited Airlines

Deal found 20/2C$ 837

Sat 1/38:20 a.m.IAD - YOW

1 stop5h 03mUnited Airlines

Sat 8/35:15 a.m.YOW - IAD

2 stops11h 12mUnited Airlines

Deal found 20/2C$ 1,142

One-way flights from Washington, D.C. to Ottawa
Search for one-way flight options from Washington, D.C. to Ottawa. Find affordable one-way fares based on user searches. Data last updated 21 February 2025.

Wed 26/312:55 p.m.DCA - YOW

Nonstop1h 40mAir Canada

Deal found 20/2C$ 179

Sun 6/411:45 a.m.IAD - YOW

1 stop8h 27mMultiple Airlines

Deal found 20/2C$ 190

Fri 21/35:30 a.m.BWI - YOW

1 stop12h 09mMultiple Airlines

Deal found 20/2C$ 192

Sun 6/48:17 a.m.IAD - YOW

Nonstop1h 41mAir Canada

Deal found 20/2C$ 196

Thu 27/37:00 a.m.IAD - YOW

1 stop7h 04mPorter Airlines

Deal found 20/2C$ 206

Sat 29/35:32 p.m.IAD - YOW

1 stop4h 29mUnited Airlines

Deal found 19/2C$ 234

Thu 27/36:59 a.m.DCA - YOW

1 stop6h 24mUnited Airlines

Deal found 19/2C$ 237

Sat 15/35:23 p.m.IAD - YOW

2 stops30h 46mWestJet

Deal found 20/2C$ 354

Sat 29/311:00 a.m.DCA - YOW

2 stops13h 09mWestJet

Deal found 19/2C$ 396

Fri 28/27:34 a.m.DCA - YOW

2 stops10h 46mMultiple Airlines

Deal found 19/2C$ 506

Thu 27/36:00 a.m.BWI - YOW

2 stops18h 09mWestJet

Deal found 19/2C$ 543

Thu 20/36:00 a.m.DCA - YOW

2 stops18h 09mDelta

Deal found 18/2C$ 568

Find flights from Washington, D.C. to Ottawa within your budget

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 20/3

7:00 a.m.-11:14 a.m.

1 stop4h 14m

Ottawa

Thu 27/3

5:45 p.m.-10:24 p.m.

1 stop4h 39m

C$ 432

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Sun 6/4

12:55 p.m.-2:27 p.m.

Nonstop1h 32m

Ottawa

Sun 13/4

10:25 a.m.-12:01 p.m.

Nonstop1h 36m

C$ 457

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Wed 19/3

5:15 p.m.-6:54 p.m.

Nonstop1h 39m

Ottawa

Wed 26/3

7:30 p.m.-9:23 p.m.

Nonstop1h 53m

C$ 463

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 20/3

1:45 p.m.-6:34 p.m.

1 stop4h 49m

Ottawa

Thu 27/3

9:45 a.m.-11:38 a.m.

Nonstop1h 53m

C$ 466

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Thu 13/3

6:00 a.m.-3:01 p.m.

3 stops33h 01m

Ottawa

Mon 17/3

4:20 p.m.-8:56 p.m.

1 stop28h 36m

C$ 489

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 13/3

12:55 p.m.-2:35 p.m.

Nonstop1h 40m

Ottawa

Mon 17/3

10:30 a.m.-12:20 p.m.

Nonstop1h 50m

C$ 509

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Fri 14/3

6:59 a.m.-1:23 p.m.

1 stop6h 24m

Ottawa

Sun 16/3

11:35 a.m.-6:07 p.m.

1 stop6h 32m

C$ 541

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Wed 30/4

8:17 a.m.-9:58 a.m.

Nonstop1h 41m

Ottawa

Wed 14/5

9:50 a.m.-11:33 a.m.

Nonstop1h 43m

C$ 543

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 20/3

6:00 a.m.-12:09 a.m.

2 stops18h 09m

Ottawa

Mon 31/3

4:20 p.m.-6:00 p.m.

2 stops25h 40m

C$ 1,021

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Fri 30/5

1:00 p.m.-12:22 a.m.

2 stops11h 22m

Ottawa

Tue 10/6

7:15 p.m.-5:09 p.m.

2 stops21h 54m

C$ 1,125

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/2

Showing 1-10 of 28 results

Best time to book a flight from Washington, D.C. to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Washington, D.C. with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Washington, D.C. to Ottawa

Get recent, data-driven insights about flights from Washington, D.C. to Ottawa including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Washington, D.C. to Ottawa?

The best time to book flights from Washington, D.C. to Ottawa is 72 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Washington, D.C. to Ottawa?

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. to Ottawa (average of C$ 224). Flying from Washington, D.C. to Ottawa in March is currently the most expensive (average of C$ 329). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WAS to YOW?

When flying from Washington, D.C. to Ottawa, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 60% versus a flight in the afternoon.

Weekly flight availability from Washington, D.C. to Ottawa

The most flights from WAS to YOW are scheduled on a Thursday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in Ottawa by month

In terms of precipitation, rainfall in Ottawa ranges from 50.0 - 93.0 mm per month. June is typically the wettest month, when rainfall can reach 93.0 mm. February is typically the driest time to visit Ottawa when rainfall is around 50.0 mm.

Temperature in Ottawa by month

If weather is an important factor for your trip to Ottawa, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -10.0 C).

Reviews of airlines servicing Ottawa

Get a feel of what it's like to fly with Delta, Porter Airlines and United Airlines from Washington, D.C. to Ottawa by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

8,219 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

8,219 reviews

Delta

8.0

Very good

8,219 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Porter Airlines

7.9

Good

276 reviews

Delta

8.0

Very good

8,219 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,765 reviews

Delta

8.0

Very good

8,219 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

WestJet

7.2

Good

2,801 reviews

Delta

8.0

Very good

8,219 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada

7.0

Good

8,748 reviews

Delta

8.0

Very good

8,219 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What airport do you fly into for flights to Ottawa from Washington, D.C.?
Ottawa (YOW), located 10.6 km from the city centre, is the airport you fly into when you book flights from Washington, D.C. to Ottawa. 2 airlines have flights to Ottawa from Washington, D.C. on a regular basis. Booking flights from Washington, D.C. to Ottawa should not be difficult; the airport handles an average of 7 inbound flights from Washington, D.C. per day.
What are the cheapest airlines flying from Washington, D.C. to Ottawa round-trip?
Our cheapest airline available from Washington, D.C. to Ottawa is Porter Airlines. Our recent data shows that you can find tickets from as low as C$ 432 on this airline. Additional options worth looking into are Air Canada and United Airlines, starting at C$ 457 and C$ 509 round-trip. Porter Airlines is 17% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Washington, D.C. to Ottawa one-way?
One-way options have recently been found by users for as low as C$ 179 on Air Canada. Other airlines that offer cheap prices include Porter Airlines from C$ 206 and United Airlines from C$ 234 one-way.
What are the most popular routes from Washington, D.C. to Ottawa?
The most popular route from Washington, D.C. to Ottawa is Washington, D.C. Dulles Intl - Ottawa. You may also consider Washington, D.C. Reagan-National - Ottawa or Baltimore/Washington - Ottawa.
What are the most reliable airlines from Washington, D.C. to Ottawa?
Consider GoJet (76%), Air Canada (76%) or United Airlines (76%) when booking your flight. These represent the most reliable airlines when flying from Washington, D.C. to Ottawa.
What are the cheapest flights from Washington, D.C. to Ottawa?
On average you can expect to pay C$ 241 for a flight from Washington, D.C. to Ottawa. The cheapest flight overall is C$ 136 while the most popular route, (Washington, D.C. Dulles Intl - Ottawa) is currently priced at C$ 428.
Can I find deals for flights from Washington, D.C. to Ottawa that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Ottawa flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Ottawa?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Ottawa.
Can I find deals for business class flights from Washington, D.C. to Ottawa?
Yes. Cheapflights offers flight deals from Washington, D.C. to Ottawa by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Washington, D.C. to Ottawa?
Currently, October is the cheapest month in which you can book a flight from Washington, D.C. to Ottawa (average of C$ 224). Flying from Washington, D.C. to Ottawa in March is currently the most expensive (average of C$ 329). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Other flights to Ottawa

Top 2 airlines flying from Washington, D.C. to Ottawa

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 231	AverageC$ 511	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Porter Airlines	CheapestC$ 403	AverageC$ 500	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights

Fly with Cheapflights

How does Cheapflights help users find flights from Washington, D.C. to Ottawa?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Washington, D.C. to Ottawa. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to Ottawa?

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Cheap flights from Washington, D.C. to Ottawa from C$ 179

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/3. Fares are subject to change and may not be available on all flights or dates of travel.

The best prices from Washington, D.C. to Ottawa are usually found in January or April, booked 72 days in advance, depart on a Tuesday or Saturday and return on a Friday

Cheap flight deals from Washington, D.C. to Ottawa

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Find flight deals from Washington, D.C. to Ottawa

Cheapest flights from Washington, D.C. to OttawaExplore the most affordable flight options available from Washington, D.C. to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.

Explore the most affordable flight options available from Washington, D.C. to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.

Find flights from Washington, D.C. to Ottawa within your budget

Best time to book a flight from Washington, D.C. to Ottawa

Have a flexible travel schedule? Discover the best time to fly to Ottawa from Washington, D.C. with our price prediction graph.

Travel insights for flights from Washington, D.C. to Ottawa

Get recent, data-driven insights about flights from Washington, D.C. to Ottawa including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Washington, D.C. to Ottawa?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Ottawa. Price data was last updated on 14 February 2025.

What is the cheapest month to book a flight from Washington, D.C. to Ottawa?

What is the cheapest time of day to fly from WAS to YOW?

Find hourly flight availability from Washington, D.C. to Ottawa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 February 2025.

Weekly flight availability from Washington, D.C. to Ottawa

Rainfall in Ottawa by month

Plan your trip to Ottawa by taking into account the average rainfall totals by month.

Temperature in Ottawa by month

Plan your trip to Ottawa by taking into account the average temperature totals by month.

Reviews of airlines servicing Ottawa

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Ottawa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Ottawa from Washington, D.C.?

What are the cheapest airlines flying from Washington, D.C. to Ottawa round-trip?

What are the cheapest airlines to fly from Washington, D.C. to Ottawa one-way?

What are the most popular routes from Washington, D.C. to Ottawa?

What are the most reliable airlines from Washington, D.C. to Ottawa?

What are the cheapest flights from Washington, D.C. to Ottawa?

Can I find deals for flights from Washington, D.C. to Ottawa that include hotel bookings?

How can I find direct flights from Washington, D.C. to Ottawa?

Can I find deals for business class flights from Washington, D.C. to Ottawa?

What is the cheapest month to book a flight from Washington, D.C. to Ottawa?

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Alternative routes for Washington, D.C. to Ottawa

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Top 2 airlines flying from Washington, D.C. to Ottawa

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Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to Ottawa?

Can Cheapflights find flights from Washington, D.C. to Ottawa with no change fees?

Can Cheapflights notify me if prices for flights from Washington, D.C. to Ottawa become cheaper?

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Cheapest flights from Washington, D.C. to Ottawa
Explore the most affordable flight options available from Washington, D.C. to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.