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Cheap flights from Washington, D.C. to Ottawa from £154

WAS — YOW
30 Oct — 6 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap 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

Sat 14/1111:05 -
2 stops13h 39m
Sat 21/1105:30 -
2 stops16h 29m
Deal found 30/9£321
Sat 24/1008:20 -
1 stop8h 56m
Sat 24/1019:30 -
Nonstop1h 44m
Deal found 26/9£330
Fri 30/1008:30 -
1 stop5h 39m
Fri 30/1017:40 -
1 stop4h 19m
Deal found 25/9£337
Sat 14/1116:30 -
1 stop8h 14m
Sat 21/1105:30 -
2 stops14h 53m
Deal found 30/9£337
Thu 31/1211:20 -
1 stop5h 04m
Mon 4/105:10 -
1 stop15h 00m
Deal found 25/9£341
Sat 24/1012:35 -
Nonstop1h 42m
Tue 27/1009:45 -
Nonstop2h 03m
Deal found 29/9£348
Fri 16/1008:15 -
Nonstop1h 41m
Tue 20/1011:15 -
1 stop3h 42m
Deal found 25/9£354
Thu 12/1107:00 -
1 stop6h 11m
Thu 19/1114:00 -
Nonstop1h 53m
Deal found 28/9£354
Fri 16/1015:47 -
1 stop5h 48m
Sun 18/1006:00 -
Nonstop1h 43m
Deal found 25/9£355
Thu 24/1208:15 -
1 stop5h 54m
Mon 28/1214:00 -
Nonstop2h 01m
Deal found 27/9£356
Thu 29/1009:05 -
1 stop4h 06m
Sun 1/1105:45 -
1 stop4h 44m
Deal found 26/9£357
Tue 10/1108:30 -
1 stop5h 39m
Sun 15/1106:00 -
1 stop4h 24m
Deal found 27/9£358

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

Round-trip from

£321

One-way from

£154

Popular in

December

Cheapest in

March

Average price

£328
14/11-21/11
  • 14/11-21/11
  • 4 total stops
  • 30h 08m total
  • Washington, D.C. to Ottawa
Search Deals
United Airlines
  • United Airlines
  • 29/10-31/12
  • Nonstop
  • 1h 48m total
  • Washington, D.C. to Ottawa
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£26 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

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

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Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Fri 30/10

13:19-15:07

Nonstop1h 48m

Ottawa

Wed 31/12

00:00-00:00

Nonstop0h 00m

£154

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Thu 12/11

13:19-15:07

Nonstop1h 48m

Ottawa

Wed 31/12

00:00-00:00

Nonstop0h 00m

£154

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Thu 3/12

13:19-15:07

Nonstop1h 48m

Ottawa

Wed 31/12

00:00-00:00

Nonstop0h 00m

£154

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Thu 29/10

13:19-15:07

Nonstop1h 48m

Ottawa

Wed 31/12

00:00-00:00

Nonstop0h 00m

£154

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Fri 23/10

22:10-23:54

Nonstop1h 44m

Ottawa

Wed 31/12

00:00-00:00

Nonstop0h 00m

£154

Washington, D.C.Ottawa

IAD Washington, D.C. Dulles Intl - YOW Ottawa

IADYOW

Washington, D.C. Dulles Intl

Sat 14/11

13:19-15:07

Nonstop1h 48m

Ottawa

Wed 31/12

00:00-00:00

Nonstop0h 00m

£154

Washington, D.C.Ottawa

DCA Washington, D.C. Reagan-National - YOW Ottawa

DCAYOW

Washington, D.C. Reagan-National

Tue 15/12

07:41-21:16

1 stop13h 35m

Ottawa

Wed 31/12

00:00-00:00

Nonstop0h 00m

£158

Washington, D.C.Ottawa

DCA Washington, D.C. Reagan-National - YOW Ottawa

DCAYOW

Washington, D.C. Reagan-National

Thu 29/10

10:05-21:56

1 stop11h 51m

Ottawa

Wed 31/12

00:00-00:00

Nonstop0h 00m

£162

Washington, D.C.Ottawa

DCA Washington, D.C. Reagan-National - YOW Ottawa

DCAYOW

Washington, D.C. Reagan-National

Wed 14/10

11:45-16:38

1 stop4h 53m

Ottawa

Wed 31/12

00:00-00:00

Nonstop0h 00m

£214

Washington, D.C.Ottawa

DCA Washington, D.C. Reagan-National - YOW Ottawa

DCAYOW

Washington, D.C. Reagan-National

Sun 25/10

19:55-13:10

2 stops17h 15m

Ottawa

Wed 31/12

00:00-00:00

Nonstop0h 00m

£285

Flights are sorted by cheapest return flights first.

Deals found on 29/9

Showing 1-10 of 38 resultsSorted by cheapest first
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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 return price

Cheapflights Insights

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

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 £328). Flying from Washington, D.C. to Ottawa in February is currently the most expensive (average of £445). 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 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

The most flights from WAS to YOW are scheduled on a Monday (11 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (9 on average).

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

Airfare is typical for this route at the moment.
Washington, D.C. to Ottawa flights typically cost between £307 and £372 in November.
The cheapest return price found within the last 5 days was £321 on Multiple Airlines (14 Nov–21 Nov).

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

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 76 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Related info for your journey

  • 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 9 daily inbound flights from Washington, D.C. from 0 different airlines.

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

    Airlines like United Airlines fly from Washington, D.C. to Ottawa in about 1h 50m. The time it takes to get you to your destination is usually consistent. Airlines will cover a distance of 449 mi. Generally, flights for this route are direct.

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

    Consider GoJet (78%), Air Canada (77%) or United Airlines (75%) 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 £328). Flying from Washington, D.C. to Ottawa in February is currently the most expensive (average of £445). 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 Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Brockville

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Washington, D.C. to Ottawa

Dulles Intl to Pearson Intl flights

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