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$ 421 on this airline. Additional options worth looking into are Air Canada and WestJet, starting at C$ 446 and C$ 637 round-trip. Porter Airlines is 21% 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$ 202 on Porter Airlines. Other airlines that offer cheap prices include Air Canada from C$ 220 and WestJet from C$ 289 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 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 307% 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 58 days in advance, which can save you up to 181% on flights from Washington, D.C. to Ottawa compared to booking the week you need them. Waiting 58 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$ 391. For sooner than that we have options available in the next 3 days from C$ 552.

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 March. Prices are generally better when you fly from Washington, D.C. to Ottawa in January, with the cheapest ticket starting at C$ 242.

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 8 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$ 202+ Flights from Washington, D.C. to Ottawa

Cheapflights Tip: The best prices from Washington, D.C. to Ottawa are usually found in January or November, 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$ 394
One-way from	C$ 202
Popular in	March
Cheapest in	January
Average price	C$ 446

8/5-11/5
2 total stops
17h 13m total
Washington, D.C. to Ottawa

Search Deals

Porter Airlines
7/6
1 total stop
3h 33m total
Washington, D.C. to Ottawa

Search Deals

Highest demand for flights based on searches. 1% potential increase in price (C$ 9 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (C$ 18 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

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 15 April 2025.

Thu 8/54:20 p.m.IAD - YOW

1 stop8h 02mMultiple Airlines

Sun 11/55:55 a.m.YOW - IAD

1 stop9h 11mMultiple Airlines

Deal found 14/4C$ 394

Thu 1/54:20 p.m.IAD - YOW

1 stop4h 43mPorter Airlines

Wed 7/510:15 a.m.YOW - IAD

1 stop4h 51mPorter Airlines

Deal found 15/4C$ 421

Thu 8/512:55 p.m.DCA - YOW

Nonstop1h 32mAir Canada

Sun 11/510:25 a.m.YOW - DCA

Nonstop1h 36mAir Canada

Deal found 14/4C$ 446

Thu 8/59:45 a.m.IAD - YOW

1 stop4h 05mAir Canada

Sun 11/57:29 p.m.YOW - IAD

Nonstop1h 44mAir Canada

Deal found 14/4C$ 449

Mon 26/56:59 a.m.DCA - YOW

1 stop17h 23mMultiple Airlines

Thu 29/55:55 a.m.YOW - DCA

2 stops9h 54mMultiple Airlines

Deal found 15/4C$ 466

Thu 1/56:50 a.m.BWI - YOW

1 stop10h 25mMultiple Airlines

Wed 7/54:40 p.m.YOW - BWI

1 stop14h 51mMultiple Airlines

Deal found 15/4C$ 499

Tue 6/51:55 p.m.DCA - YOW

2 stops10h 27mWestJet

Thu 8/55:55 a.m.YOW - DCA

2 stops10h 25mWestJet

Deal found 15/4C$ 637

Mon 26/56:45 p.m.IAD - YOW

2 stops21h 35mWestJet

Fri 30/56:00 a.m.YOW - IAD

1 stop11h 54mWestJet

Deal found 14/4C$ 741

Wed 18/63:40 p.m.IAD - YOW

1 stop6h 25mUnited Airlines

Wed 25/66:12 a.m.YOW - IAD

2 stops10h 06mUnited Airlines

Deal found 15/4C$ 765

Thu 1/512:55 p.m.DCA - YOW

Nonstop1h 32mLufthansa

Mon 5/510:25 a.m.YOW - DCA

Nonstop1h 36mLufthansa

Deal found 14/4C$ 904

Wed 18/611:10 a.m.DCA - YOW

1 stop5h 33mUnited Airlines

Wed 25/66:30 a.m.YOW - DCA

2 stops8h 22mUnited Airlines

Deal found 14/4C$ 914

Fri 25/410:00 a.m.DCA - YOW

2 stops14h 09mDelta

Tue 29/45:55 a.m.YOW - DCA

2 stops16h 55mDelta

Deal found 15/4C$ 1,149

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 15 April 2025.

Thu 8/54:20 p.m.IAD - YOW

1 stop8h 02mMultiple Airlines

Sun 11/55:55 a.m.YOW - IAD

1 stop9h 11mMultiple Airlines

Deal found 14/4C$ 394

Thu 1/54:20 p.m.IAD - YOW

1 stop4h 43mPorter Airlines

Wed 7/510:15 a.m.YOW - IAD

1 stop4h 51mPorter Airlines

Deal found 15/4C$ 421

Thu 8/512:55 p.m.DCA - YOW

Nonstop1h 32mAir Canada

Sun 11/510:25 a.m.YOW - DCA

Nonstop1h 36mAir Canada

Deal found 14/4C$ 446

Tue 6/51:55 p.m.DCA - YOW

2 stops10h 27mWestJet

Thu 8/55:55 a.m.YOW - DCA

2 stops10h 25mWestJet

Deal found 15/4C$ 637

Wed 18/63:40 p.m.IAD - YOW

1 stop6h 25mUnited Airlines

Wed 25/66:12 a.m.YOW - IAD

2 stops10h 06mUnited Airlines

Deal found 15/4C$ 765

Thu 8/59:45 a.m.IAD - YOW

1 stop4h 05mAir Canada

Sun 11/57:29 p.m.YOW - IAD

Nonstop1h 44mAir Canada

Deal found 14/4C$ 449

Thu 1/512:55 p.m.DCA - YOW

Nonstop1h 32mLufthansa

Mon 5/510:25 a.m.YOW - DCA

Nonstop1h 36mLufthansa

Deal found 14/4C$ 904

Mon 26/56:59 a.m.DCA - YOW

1 stop17h 23mMultiple Airlines

Thu 29/55:55 a.m.YOW - DCA

2 stops9h 54mMultiple Airlines

Deal found 15/4C$ 466

Thu 1/56:50 a.m.BWI - YOW

1 stop10h 25mMultiple Airlines

Wed 7/54:40 p.m.YOW - BWI

1 stop14h 51mMultiple Airlines

Deal found 15/4C$ 499

Fri 25/410:00 a.m.DCA - YOW

2 stops14h 09mDelta

Tue 29/45:55 a.m.YOW - DCA

2 stops16h 55mDelta

Deal found 15/4C$ 1,149

Mon 26/56:45 p.m.IAD - YOW

2 stops21h 35mWestJet

Fri 30/56:00 a.m.YOW - IAD

1 stop11h 54mWestJet

Deal found 14/4C$ 741

Wed 18/611:10 a.m.DCA - YOW

1 stop5h 33mUnited Airlines

Wed 25/66:30 a.m.YOW - DCA

2 stops8h 22mUnited Airlines

Deal found 14/4C$ 914

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 15 April 2025.

Thu 8/512:55 p.m.DCA - YOW

Nonstop1h 32mAir Canada

Sun 11/510:25 a.m.YOW - DCA

Nonstop1h 36mAir Canada

Deal found 14/4C$ 446

Thu 1/58:17 a.m.IAD - YOW

Nonstop1h 41mAir Canada

Mon 5/57:29 p.m.YOW - IAD

Nonstop1h 44mAir Canada

Deal found 14/4C$ 467

Fri 9/55:10 p.m.IAD - YOW

Nonstop1h 42mUnited Airlines

Sun 18/59:50 a.m.YOW - IAD

Nonstop1h 43mUnited Airlines

Deal found 14/4C$ 788

Fri 2/512:55 p.m.DCA - YOW

Nonstop1h 32mMultiple Airlines

Sun 4/510:25 a.m.YOW - DCA

Nonstop1h 36mMultiple Airlines

Deal found 15/4C$ 901

Fri 2/55:10 p.m.IAD - YOW

Nonstop1h 42mMultiple Airlines

Sun 4/57:29 p.m.YOW - IAD

Nonstop1h 44mMultiple Airlines

Deal found 15/4C$ 901

Thu 1/512:55 p.m.DCA - YOW

Nonstop1h 32mLufthansa

Mon 5/510:25 a.m.YOW - DCA

Nonstop1h 36mLufthansa

Deal found 14/4C$ 904

Last-minute flights from Washington, D.C. to Ottawa
Discover last-minute flight deals from Washington, D.C. to Ottawa. Data last updated 15 April 2025 and is based on user searches.

Tue 22/46:00 a.m.DCA - YOW

2 stops18h 44mWestJet

Wed 23/48:10 p.m.YOW - DCA

2 stops27h 48mWestJet

Deal found 14/4C$ 1,652

Tue 22/46:00 a.m.IAD - YOW

2 stops18h 09mWestJet

Wed 23/48:10 p.m.YOW - IAD

2 stops27h 30mWestJet

Deal found 14/4C$ 1,658

Wed 23/46:00 a.m.DCA - YOW

2 stops7h 24mMultiple Airlines

Wed 23/44:45 p.m.YOW - DCA

1 stop4h 23mMultiple Airlines

Deal found 15/4C$ 1,267

Wed 23/45:32 p.m.IAD - YOW

2 stops21h 47mDelta

Tue 29/45:55 a.m.YOW - IAD

2 stops17h 12mDelta

Deal found 15/4C$ 1,267

Wed 23/46:50 p.m.BWI - YOW

2 stops20h 29mDelta

Tue 29/45:55 a.m.YOW - BWI

2 stops10h 55mDelta

Deal found 15/4C$ 1,300

Wed 23/48:25 a.m.IAD - YOW

1 stop4h 59mUnited Airlines

Wed 23/45:50 p.m.YOW - IAD

2 stops17h 21mUnited Airlines

Deal found 15/4C$ 1,450

Thu 24/411:35 a.m.BWI - YOW

2 stops12h 34mWestJet

Sat 26/45:55 a.m.YOW - BWI

2 stops14h 05mWestJet

Deal found 15/4C$ 1,847

Fri 25/47:00 a.m.IAD - YOW

1 stop4h 14mPorter Airlines

Mon 28/49:40 a.m.YOW - IAD

1 stop3h 19mPorter Airlines

Deal found 14/4C$ 480

Fri 25/412:55 p.m.DCA - YOW

Nonstop1h 32mAir Canada

Tue 29/410:25 a.m.YOW - DCA

Nonstop1h 36mAir Canada

Deal found 15/4C$ 594

Fri 25/410:14 p.m.IAD - YOW

Nonstop1h 39mAir Canada

Tue 29/47:29 p.m.YOW - IAD

Nonstop1h 46mAir Canada

Deal found 15/4C$ 594

Fri 25/47:00 a.m.IAD - YOW

1 stop4h 14mMultiple Airlines

Sat 26/45:55 a.m.YOW - IAD

1 stop13h 34mMultiple Airlines

Deal found 15/4C$ 677

Fri 25/410:00 a.m.DCA - YOW

2 stops14h 09mDelta

Tue 29/45:55 a.m.YOW - DCA

2 stops16h 55mDelta

Deal found 15/4C$ 1,149

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 15 April 2025.

Sat 7/64:20 p.m.IAD - YOW

1 stop3h 33mPorter Airlines

Deal found 14/4C$ 202

Wed 30/47:55 p.m.BWI - YOW

1 stop21h 20mMultiple Airlines

Deal found 15/4C$ 210

Fri 30/59:40 a.m.DCA - YOW

1 stop4h 10mAir Canada

Deal found 15/4C$ 220

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

Nonstop1h 42mAir Canada

Deal found 15/4C$ 220

Sun 27/711:58 a.m.IAD - YOW

2 stops12h 24mMultiple Airlines

Deal found 15/4C$ 221

Tue 13/56:00 a.m.IAD - YOW

2 stops18h 22mWestJet

Deal found 14/4C$ 289

Tue 20/55:10 p.m.DCA - YOW

2 stops14h 51mMultiple Airlines

Deal found 14/4C$ 339

Fri 30/51:45 p.m.DCA - YOW

2 stops10h 37mWestJet

Deal found 14/4C$ 364

Fri 30/55:07 p.m.IAD - YOW

Nonstop1h 45mUnited Airlines

Deal found 14/4C$ 395

Fri 30/510:10 a.m.DCA - YOW

2 stops14h 12mDelta

Deal found 14/4C$ 405

Fri 23/512:55 p.m.DCA - YOW

Nonstop1h 32mUnited Airlines

Deal found 14/4C$ 453

Thu 15/59:55 a.m.BWI - YOW

2 stops14h 27mDelta

Deal found 14/4C$ 517

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Ottawa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 8/5

4:20 p.m.-12:22 a.m.

1 stop8h 02m

Ottawa

Sun 11/5

5:55 a.m.-3:06 p.m.

1 stop9h 11m

C$ 394

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 1/5

4:20 p.m.-9:03 p.m.

1 stop4h 43m

Ottawa

Wed 7/5

10:15 a.m.-3:06 p.m.

1 stop4h 51m

C$ 421

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 8/5

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

Nonstop1h 32m

Ottawa

Sun 11/5

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

Nonstop1h 36m

C$ 446

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Thu 8/5

9:45 a.m.-1:50 p.m.

1 stop4h 05m

Ottawa

Sun 11/5

7:29 p.m.-9:13 p.m.

Nonstop1h 44m

C$ 449

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Mon 26/5

6:59 a.m.-12:22 a.m.

1 stop17h 23m

Ottawa

Thu 29/5

5:55 a.m.-3:49 p.m.

2 stops9h 54m

C$ 466

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Thu 1/5

6:50 a.m.-5:15 p.m.

1 stop10h 25m

Ottawa

Wed 7/5

4:40 p.m.-7:31 a.m.

1 stop14h 51m

C$ 499

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Tue 6/5

1:55 p.m.-12:22 a.m.

2 stops10h 27m

Ottawa

Thu 8/5

5:55 a.m.-4:20 p.m.

2 stops10h 25m

C$ 637

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Mon 26/5

6:45 p.m.-4:20 p.m.

2 stops21h 35m

Ottawa

Fri 30/5

6:00 a.m.-5:54 p.m.

1 stop11h 54m

C$ 741

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Wed 18/6

3:40 p.m.-10:05 p.m.

1 stop6h 25m

Ottawa

Wed 25/6

6:12 a.m.-4:18 p.m.

2 stops10h 06m

C$ 765

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 1/5

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

Nonstop1h 32m

Ottawa

Mon 5/5

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

Nonstop1h 36m

C$ 904

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/4

Showing 1-10 of 29 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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Ottawa

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 December is currently the most expensive (average of C$ 326). 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 61% 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 Monday (9 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (8 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 Porter Airlines, Delta 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.

Porter Airlines

8.0

Very good

281 reviews

Check prices

Reviews

1 / 17

10.0

Excellent

Anonymous,Dec 2024

YYZ - LAS

Everything about the rescheduled (cost me $180) flight great. ***Being denied boarding because I was few minutes under 1.5 hours was not. Stuck at the Kiosk for about 15 minutes before it directed me to the Porter counter was strange. Do not know why checking in online at home was not successful? I think something was up...what can you do?

Porter Airlines

8.0

Very good

281 reviews

Porter Airlines

8.0

Very good

281 reviews

Check prices

Reviews

1 / 17

10.0

Excellent

Anonymous,Dec 2024

YYZ - LAS

Delta

8.0

Very good

7,917 reviews

Porter Airlines

8.0

Very good

281 reviews

Check prices

Reviews

1 / 17

10.0

Excellent

Anonymous,Dec 2024

YYZ - LAS

United Airlines

7.4

Good

8,658 reviews

Porter Airlines

8.0

Very good

281 reviews

Check prices

Reviews

1 / 17

10.0

Excellent

Anonymous,Dec 2024

YYZ - LAS

WestJet

7.2

Good

2,805 reviews

Porter Airlines

8.0

Very good

281 reviews

Check prices

Reviews

1 / 17

10.0

Excellent

Anonymous,Dec 2024

YYZ - LAS

Air Canada

7.0

Good

9,127 reviews

Porter Airlines

8.0

Very good

281 reviews

Check prices

Reviews

1 / 17

10.0

Excellent

Anonymous,Dec 2024

YYZ - LAS

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 8 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$ 421 on this airline. Additional options worth looking into are Air Canada and WestJet, starting at C$ 446 and C$ 637 round-trip. Porter Airlines is 21% 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$ 202 on Porter Airlines. Other airlines that offer cheap prices include Air Canada from C$ 220 and WestJet from C$ 289 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.
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 December is currently the most expensive (average of C$ 326). 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

Gatineau

Perth

Smiths Falls

Prescott

Brockville

Wakefield

Lanark

Browse thousands of different options on Cheapflights for your next trip

Other flights to Ottawa

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

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 226	AverageC$ 500	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Porter Airlines	CheapestC$ 395	AverageC$ 489	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?

Cheapflights simply makes it quick and affordable to book flights from Washington, D.C. to Ottawa by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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Yes! Cheapflights helps users easily find flights from Washington, D.C. to Ottawa with no change fees.

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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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Cheap flights from Washington, D.C. to Ottawa from C$ 202

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 7/6. Fares are subject to change and may not be available on all flights or dates of travel.

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

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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 15 April 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 15 April 2025.

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

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Everything you need to know about your flight from Washington, D.C. to Ottawa

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 11 April 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 15 April 2025.

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

Rainfall in Ottawa by month

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Temperature in Ottawa by month

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Reviews of airlines servicing Ottawa

Get insights into the airlines that provide service to Ottawa. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ottawa. Reviews last updated 15 April 2025.

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.?

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What are the most popular routes 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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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 15 April 2025.