Find flights
Deals
When to book
FAQs

Cheap flights from Washington, D.C. to Ottawa from C$ 201

WAS — YOW
29 Oct — 5 Nov1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Washington, D.C. to Ottawa are usually found in March or August, booked 67 days in advance, depart on a Thursday or Wednesday and return on a Thursday

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 31/109:55 a.m. -
1 stop4h 22m
Sat 31/105:10 p.m. -
1 stop24h 37m
Deal found 28/9C$ 395
Tue 13/108:40 p.m. -
1 stop4h 55m
Wed 14/1011:15 a.m. -
1 stop4h 25m
Deal found 24/9C$ 423
Sun 25/1011:20 a.m. -
1 stop4h 49m
Sun 1/1112:15 p.m. -
1 stop5h 28m
Deal found 27/9C$ 462
Mon 9/1111:20 a.m. -
1 stop4h 49m
Fri 13/1112:15 p.m. -
1 stop5h 28m
Deal found 28/9C$ 480
Fri 16/1011:25 a.m. -
1 stop6h 27m
Mon 19/1010:40 a.m. -
1 stop4h 30m
Deal found 25/9C$ 486
Tue 10/116:07 p.m. -
1 stop23h 13m
Tue 17/117:05 a.m. -
1 stop13h 06m
Deal found 27/9C$ 493
Sat 17/1011:25 a.m. -
1 stop7h 42m
Mon 19/1010:40 a.m. -
1 stop4h 30m
Deal found 25/9C$ 497
Thu 22/1011:25 a.m. -
1 stop8h 37m
Tue 27/107:05 a.m. -
1 stop13h 06m
Deal found 26/9C$ 499
Fri 23/1011:25 a.m. -
1 stop8h 37m
Tue 27/107:05 a.m. -
1 stop13h 06m
Deal found 26/9C$ 506
Thu 22/103:50 p.m. -
1 stop4h 12m
Wed 28/107:00 a.m. -
2 stops13h 11m
Deal found 26/9C$ 508
Sat 24/1011:25 a.m. -
1 stop7h 42m
Tue 27/107:05 a.m. -
1 stop13h 06m
Deal found 25/9C$ 513
Fri 23/1011:25 a.m. -
1 stop8h 37m
Wed 28/107:00 a.m. -
2 stops13h 11m
Deal found 26/9C$ 516

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

Round-trip from

C$ 395

One-way from

C$ 201

Popular in

December

Cheapest in

March

Average price

C$ 615

Good round-trip deal

C$ 1,605 or less

Good one-way deal

C$ 185 or less
Air Canada
  • Air Canada
  • 31/10-31/10
  • 2 total stops
  • 28h 59m total
  • Washington, D.C. to Ottawa
Search Deals
11/11-31/12
  • 11/11-31/12
  • 3 total stops
  • 38h 10m total
  • Washington, D.C. to Ottawa
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 93 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 September 2026
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

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

Cheapest round-trip

Washington, D.C.Ottawa

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

IADYOW

Washington, D.C. Dulles Intl

Wed 9/12

12:06 p.m.-12:07 a.m.

2 stops36h 01m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 224

Washington, D.C.Ottawa

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

IADYOW

Washington, D.C. Dulles Intl

Sun 18/10

8:15 a.m.-9:56 a.m.

Nonstop1h 41m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 289

Washington, D.C.Ottawa

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

IADYOW

Washington, D.C. Dulles Intl

Thu 3/12

1:19 p.m.-3:07 p.m.

Nonstop1h 48m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 289

Washington, D.C.Ottawa

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

IADYOW

Washington, D.C. Dulles Intl

Fri 30/10

5:37 p.m.-7:27 p.m.

Nonstop1h 50m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 289

Washington, D.C.Ottawa

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

IADYOW

Washington, D.C. Dulles Intl

Sat 14/11

1:19 p.m.-3:07 p.m.

Nonstop1h 48m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 289

Washington, D.C.Ottawa

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

IADYOW

Washington, D.C. Dulles Intl

Wed 28/10

5:37 p.m.-7:27 p.m.

Nonstop1h 50m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 289

Washington, D.C.Ottawa

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

IADYOW

Washington, D.C. Dulles Intl

Thu 29/10

1:19 p.m.-3:07 p.m.

Nonstop1h 48m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 289

Washington, D.C.Ottawa

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

IADYOW

Washington, D.C. Dulles Intl

Thu 12/11

1:19 p.m.-3:07 p.m.

Nonstop1h 48m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 289

Washington, D.C.Ottawa

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

IADYOW

Washington, D.C. Dulles Intl

Fri 23/10

10:10 p.m.-11:54 p.m.

Nonstop1h 44m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 289

Washington, D.C.Ottawa

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

DCAYOW

Washington, D.C. Reagan-National

Mon 7/12

8:45 a.m.-2:09 p.m.

1 stop5h 24m

Ottawa

Wed 31/12

12:00 a.m.-12:00 a.m.

Nonstop0h 00m

C$ 296

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/9

Showing 1-10 of 42 resultsSorted by cheapest first
1
2
3
...
5

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

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 C$ 615). Flying from Washington, D.C. to Ottawa in February is currently the most expensive (average of C$ 834). 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 at noon, which can drop the price by up to 79% 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 (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 to fly round-trip from Washington, D.C. to Ottawa?

Airfare is below average for this route at the moment.
Washington, D.C. to Ottawa flights typically cost between C$ 575 and C$ 697 in October.
The cheapest round-trip price found within the last 5 days was C$ 395 on Air Canada (31 Oct-31 Oct).

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 76 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.

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. 0 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 10 inbound flights from Washington, D.C. per day.

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

    For as low as C$ 651, United Airlines can have you in Ottawa from Washington, D.C. in 1h 48m. The distance from Washington, D.C. to Ottawa is about 723 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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 (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.

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

    On average you can expect to pay C$ 1,605 for a flight from Washington, D.C. to Ottawa. The cheapest flight overall is C$ 1,605 while the most popular route, (Washington, D.C. Dulles Intl - Ottawa) is currently priced at C$ 462.

  • 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, September is the cheapest month in which you can book a flight from Washington, D.C. to Ottawa (average of C$ 615). Flying from Washington, D.C. to Ottawa in February is currently the most expensive (average of C$ 834). 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
Prescott
Brockville
Wakefield
Pembroke
Smiths Falls

Browse thousands of different options on Cheapflights for your next trip

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.

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!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.