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Cheap flights from Washington, D.C. to Ottawa from £466

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/12. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — YOW
6 Dec — 13 Dec1
1 adult
1 adult, Economy, 0 bags

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 6 November 2025.

Round-trip from

£466

Popular in

March

Cheapest in

January

Average price

£290
Air Canada
  • Air Canada
  • 26/12-3/1
  • 2 total stops
  • 27h 26m total
  • Washington, D.C. to Ottawa
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Highest demand for flights based on searches. 1% potential increase in price (£4 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).
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Average for round-trip flights in November 2025
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Find flight deals from Washington, D.C. to Ottawa

Enter your travel dates to find the best prices.

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 6 November 2025.

Fri 26/1207:00DCA - YOW
1 stop14h 56mMultiple Airlines
Sat 3/120:25YOW - DCA
1 stop12h 30mMultiple Airlines
Deal found 5/11£466
Sat 15/1106:00DCA - YOW
1 stop7h 32mMultiple Airlines
Thu 20/1117:55YOW - DCA
1 stop14h 33mMultiple Airlines
Deal found 5/11£601
Wed 3/1207:59DCA - YOW
2 stops16h 43mDelta
Wed 10/1205:40YOW - DCA
2 stops18h 00mDelta
Deal found 5/11£625
Fri 21/1109:05DCA - YOW
1 stop4h 27mMultiple Airlines
Sun 23/1108:30YOW - DCA
2 stops7h 01mMultiple Airlines
Deal found 4/11£651
Thu 4/1212:55DCA - YOW
Nonstop1h 35mUnited Airlines
Thu 11/1210:30YOW - DCA
Nonstop1h 49mUnited Airlines
Deal found 5/11£666
Fri 7/1112:55DCA - YOW
Nonstop1h 35mMultiple Airlines
Tue 11/1106:00YOW - DCA
1 stop9h 20mMultiple Airlines
Deal found 4/11£869

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 6 November 2025.
Use the filters below to find and compare flights from Washington, D.C. to Ottawa that are best for you.

Fly from

Washington, D.C.

Fly to

Ottawa

Route

Depart

Return

Price

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Fri 26/12

07:00-21:56

1 stop14h 56m

Ottawa

Sat 3/1

20:25-08:55

1 stop12h 30m

£466

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Wed 3/12

07:59-00:42

2 stops16h 43m

Ottawa

Wed 10/12

05:40-23:40

2 stops18h 00m

£625

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Fri 21/11

09:05-13:32

1 stop4h 27m

Ottawa

Sun 23/11

08:30-15:31

2 stops7h 01m

£651

Washington, D.C.Ottawa

DCA - YOW

DCAYOW

Washington, D.C. Reagan-National

Thu 4/12

12:55-14:30

Nonstop1h 35m

Ottawa

Thu 11/12

10:30-12:19

Nonstop1h 49m

£666

Flights are sorted by cheapest return flights first.

Deals found on 5/11

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 return 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?

Use this chart to determine the optimal time to book a return flight from Washington, D.C. to Ottawa. Price data was last updated on 31 October 2025.

The price you pay for your flight from Washington, D.C. to Ottawa may vary depending on when you book. For the best chance of a lower fare, look to book 57 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. to Ottawa (average of £87). Flying from Washington, D.C. to Ottawa in June is currently the most expensive (average of £164). 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 6 November 2025.

When flying from Washington, D.C. to Ottawa, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 6 November 2025.

The most flights from WAS to YOW are scheduled on a Monday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).

How much does it cost for a return flight from Washington, D.C. to 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.?

    Located just 6.6 mi from the city center, Ottawa is the airport most travelers will use when flying to Ottawa from Washington, D.C.. Booking flights from Washington, D.C. to Ottawa (YOW) should be relatively easy as there are 8 daily inbound flights from Washington, D.C. from 0 different airlines.

  • How long is the flight from Washington, D.C. to Ottawa?

    Airlines like Delta and United Airlines fly from Washington, D.C. to Ottawa in about 1h 35m. The time it takes to get you to your destination can typically vary by up to 15h 08m. Airlines will cover a distance of 452 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    Consider Republic Airways (83%), Air Canada (81%) or United Airlines (81%) when booking your flight. These represent the most reliable airlines when flying from Washington, D.C. to 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 holiday 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, September is the cheapest month in which you can book a flight from Washington, D.C. to Ottawa (average of £87). Flying from Washington, D.C. to Ottawa in June is currently the most expensive (average of £164). 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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Smiths Falls

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

Cheapflights makes it easy to find Washington, D.C. to Ottawa flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ottawa from Washington, D.C..

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

Yes, we can. To see specific flights from Washington, D.C. to Ottawa with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes! Start tracking prices for Washington, D.C. to Ottawa flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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