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Cheap flights from Washington, D.C. to Ottawa from C$ 161

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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — YOW
26 Jan — 2 Feb1
1 adult

The best prices from Washington, D.C. to Ottawa are usually found in April or January, booked 43 days in advance, depart on a Tuesday or Saturday and return on a Wednesday

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

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Ottawa (YOW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 21 January 2025.

Round-trip from

C$ 366

One-way from

C$ 161

Popular in

September

Cheapest in

April

Average price

C$ 413

Good round-trip deal

C$ 543 or less

Good one-way deal

C$ 253 or less
Porter Airlines
  • Porter Airlines
  • 18/2-22/2
  • 2 total stops
  • 9h 53m total
  • Washington, D.C. to Ottawa
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Porter Airlines
  • Porter Airlines
  • 5/3
  • 1 total stop
  • 4h 14m total
  • Washington, D.C. to Ottawa
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 136 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 21 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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Price to beat on a round-trip flight from Washington, D.C. (WAS) to Ottawa.
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Price to beat on a one-way flight from Washington, D.C. (WAS) to Ottawa.
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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 January 2025.

Tue 18/22:10 p.m.IAD - YOW
1 stop6h 24mPorter Airlines
Sat 22/29:20 a.m.YOW - IAD
1 stop3h 29mPorter Airlines
Deal found 21/1C$ 366
Thu 13/212:55 p.m.DCA - YOW
Nonstop1h 40mAir Canada
Mon 17/210:30 a.m.YOW - DCA
Nonstop1h 50mAir Canada
Deal found 21/1C$ 430
Mon 10/310:15 p.m.IAD - YOW
Nonstop1h 39mAir Canada
Mon 17/311:00 a.m.YOW - IAD
1 stop4h 13mAir Canada
Deal found 21/1C$ 448
Wed 5/21:17 p.m.IAD - YOW
2 stops10h 38mMultiple Airlines
Wed 12/28:40 a.m.YOW - IAD
1 stop4h 09mMultiple Airlines
Deal found 20/1C$ 452
Mon 24/28:55 p.m.BWI - YOW
2 stops23h 25mMultiple Airlines
Thu 27/25:00 p.m.YOW - BWI
1 stop14h 40mMultiple Airlines
Deal found 21/1C$ 481
Mon 17/27:00 a.m.DCA - YOW
1 stop6h 20mMultiple Airlines
Sat 22/210:30 a.m.YOW - DCA
Nonstop1h 50mMultiple Airlines
Deal found 21/1C$ 584
Mon 24/212:55 p.m.DCA - YOW
Nonstop1h 40mUnited Airlines
Tue 25/210:30 a.m.YOW - DCA
Nonstop1h 50mUnited Airlines
Deal found 21/1C$ 699
Mon 24/210:15 p.m.IAD - YOW
Nonstop1h 39mUnited Airlines
Thu 27/27:30 p.m.YOW - IAD
Nonstop1h 53mUnited Airlines
Deal found 21/1C$ 699
Thu 13/211:07 a.m.DCA - YOW
2 stops11h 22mPorter Airlines
Sun 16/29:50 a.m.YOW - DCA
1 stop13h 00mPorter Airlines
Deal found 21/1C$ 753
Sun 2/22:35 p.m.DCA - YOW
2 stops9h 34mWestJet
Wed 5/29:35 p.m.YOW - DCA
3 stops24h 25mWestJet
Deal found 21/1C$ 970
Wed 5/212:41 p.m.BWI - YOW
2 stops11h 28mWestJet
Sat 8/25:55 a.m.YOW - BWI
2 stops17h 10mWestJet
Deal found 20/1C$ 1,028
Tue 11/312:28 p.m.BWI - YOW
2 stops11h 41mDelta
Tue 18/35:55 a.m.YOW - BWI
2 stops11h 00mDelta
Deal found 21/1C$ 1,112

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

Customize your flight search to find flights from Washington, D.C. to Ottawa that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 21 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Tue 18/2

2:10 p.m.-8:34 p.m.

1 stop6h 24m

Ottawa

Sat 22/2

9:20 a.m.-12:49 p.m.

1 stop3h 29m

C$ 366

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 13/2

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

Nonstop1h 40m

Ottawa

Mon 17/2

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

Nonstop1h 50m

C$ 430

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Mon 10/3

12:50 p.m.-2:29 p.m.

Nonstop1h 39m

Ottawa

Mon 17/3

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

Nonstop1h 53m

C$ 440

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Wed 5/2

1:17 p.m.-11:55 p.m.

2 stops10h 38m

Ottawa

Wed 12/2

8:40 a.m.-12:49 p.m.

1 stop4h 09m

C$ 452

BaltimoreOttawa

BWI - YOW

BWIYOW

Baltimore/Washington

Mon 24/2

8:55 p.m.-8:20 p.m.

2 stops23h 25m

Ottawa

Thu 27/2

5:00 p.m.-7:40 a.m.

1 stop14h 40m

C$ 481

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Mon 17/2

7:00 a.m.-1:20 p.m.

1 stop6h 20m

Ottawa

Sat 22/2

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

Nonstop1h 50m

C$ 584

Washington, D.C.Ottawa

IAD - YOW

IADYOW

Washington, D.C. Dulles Intl

Tue 11/2

12:49 p.m.-2:29 p.m.

Nonstop1h 40m

Ottawa

Tue 11/2

5:50 p.m.-10:20 p.m.

1 stop4h 30m

C$ 682

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Mon 24/2

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

Nonstop1h 40m

Ottawa

Tue 25/2

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

Nonstop1h 50m

C$ 699

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 13/2

11:07 a.m.-10:29 p.m.

2 stops11h 22m

Ottawa

Sun 16/2

9:50 a.m.-10:50 p.m.

1 stop13h 00m

C$ 753

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Sun 2/2

2:35 p.m.-12:09 a.m.

2 stops9h 34m

Ottawa

Wed 5/2

9:35 p.m.-10:00 p.m.

3 stops24h 25m

C$ 970

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/1

Showing 1-10 of 22 results
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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?

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 17 January 2025.

The best time to book flights from Washington, D.C. to Ottawa is 43 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$ 362). 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?

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 January 2025.

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 morning, which can drop the price by up to 37% versus a flight in the afternoon.

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

Explore weekly flight availability from Washington, D.C. to Ottawa. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 21 January 2025.

The most flights from WAS to YOW are scheduled on a Monday (7 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in Ottawa by month

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

Plan your trip to Ottawa by taking into account the average temperature totals 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 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 21 January 2025.
Get a feel of what it's like to fly with Porter Airlines, WestJet and Delta 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
8,521 reviews
Check prices

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

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

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

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

Porter Airlines
7.9
Good
277 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

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

United Airlines
7.4
Good
8,984 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

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

WestJet
7.2
Good
2,829 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

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

Air Canada
7.0
Good
8,633 reviews
Delta
8.0
Very good
8,521 reviews
Check prices

Entertainment

7.9

Overall

8.0

Food

7.3

Crew

8.6

Boarding

8.2

Comfort

8.0

Reviews

1 / 10

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

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.?

    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 6 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$ 366 on this airline. Additional options worth looking into are Air Canada and United Airlines, starting at C$ 430 and C$ 682 round-trip. Porter Airlines is 30% 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$ 161 on Porter Airlines. Other airlines that offer cheap prices include Air Canada from C$ 187 and United Airlines from C$ 462 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 Baltimore/Washington - Ottawa or Washington, D.C. Reagan-National - 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 March is currently the most expensive (average of C$ 362). 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

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Gatineau
Smiths Falls
Perth
Prescott
Brockville
Lanark

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

Discover the top 2 airlines that operate flights from Washington, D.C. to Ottawa. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 21 January 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 234AverageC$ 550FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 408AverageC$ 506FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

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

Yes! Cheapflights helps users easily 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?

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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