Cheap flights from Washington, D.C. to Ottawa

Washington
WAS
Macdonald-Cartier
YOW

Flight deals from Washington, D.C. to Ottawa

Below you can see the best deals on flights Washington, D.C. — Ottawa for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

Top 10 cheap flights from Washington, D.C. to Ottawa

PD
WS
$ 171

Washington, D.C. — Ottawa

11:25—17:35
11 Sep 2026
6 h 10 m
1 stop
PD
WS
$ 171

Washington, D.C. — Ottawa

15:50—00:20
11 Sep 2026
8 h 30 m
1 stop
PD
WS
$ 171

Washington, D.C. — Ottawa

11:25—00:20
11 Sep 2026
12 h 55 m
1 stop
PD
WS
$ 172

Washington, D.C. — Ottawa

11:25—17:35
10 Sep 2026
6 h 10 m
1 stop
PD
WS
$ 172

Washington, D.C. — Ottawa

15:50—00:20
10 Sep 2026
8 h 30 m
1 stop
PD
WS
$ 172

Washington, D.C. — Ottawa

11:25—00:20
10 Sep 2026
12 h 55 m
1 stop
PD
WS
$ 172

Washington, D.C. — Ottawa

11:25—17:35
9 Sep 2026
6 h 10 m
1 stop
PD
WS
$ 172

Washington, D.C. — Ottawa

11:25—00:20
9 Sep 2026
12 h 55 m
1 stop
PD
WS
$ 172

Washington, D.C. — Ottawa

11:25—17:35
13 Sep 2026
6 h 10 m
1 stop
PD
WS
$ 172

Washington, D.C. — Ottawa

15:50—00:20
13 Sep 2026
8 h 30 m
1 stop

Prices were found in the last 72 hours and may change — check the exact price when you continue.

About the Washington, D.C. — Ottawa flight

Looking for cheap flights from Washington, D.C. to Ottawa? Compare fares from different airlines, check the flight schedule and travel time — and book your Washington, D.C. — Ottawa ticket online at the best price.

The route has direct flights — around 115 flights per week, flights are operated by United Airlines, Air Canada, a nonstop flight takes about 1 h 31 min, the distance between the cities is around 732 km.

Planning your trip? You may find our Ottawa travel guide, how to get from the airport into town and Ottawa weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

YesDirect flights
732 kmDistance
1 h 31 minTravel time
2Airlines
115 / wkFlights

Flight schedule from Washington, D.C. to Ottawa

The table shows direct flights from Washington, D.C. to Ottawa on the selected date. The flight takes approximately 1 h 31 min. Regular flights are operated by United Airlines and Air Canada. Departures from Washington Dulles International Airport, Baltimore/Washington International Thurgood Marshall Airport and Ronald Reagan National Airport airports, arrivals at Ottawa Macdonald–Cartier International Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
Any time
Last update: 16 Aug 2026

Prices by month

Average one-way fares from Washington, D.C. to Ottawa by month. Tickets are usually cheapest in November (around $167) and priciest in August (about $274) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$250highMay$179lowSep$203medium
Feb$238highJun$226highOct$191medium
Mar$215mediumJul$262highNov$167low
Apr$203mediumAug$274highDec$238high

Some values are estimated based on seasonality.

When to fly

Weather in Ottawa: it is warmest in July (up to 27 °C on average) and coolest in January (around -4 °C). The driest month is September.

Temperature · Ottawa

Dry and wet days · Ottawa

Wind speed and direction · Ottawa

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How to get the best deal on a Washington, D.C. — Ottawa ticket

  • Book ahead: fares for Washington, D.C. — Ottawa are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • Washington, D.C. is served by more than one airport — compare fares and travel time to each before you book.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the Washington, D.C. — Ottawa route are operated by 2 airlines; United Airlines runs the most flights (around 62% of all flights). Compare carriers, flight shares and schedules below.

  • United AirlinesUA
    24x/week
    WebsiteFleet: 956165M pax/year
    • Direct flight IAD → YOW20x/week
      Duration
      1h 41m
      Days
      MTWTFSS
    • Direct flight DCA → YOW4x/week
      Duration
      1h 31m
      Days
      MTWTFSS
    61.7%Open →
  • Air CanadaAC
    15x/week
    WebsiteFleet: 20346M pax/year
    • Direct flight IAD → YOW10x/week
      Duration
      1h 35m
      Days
      MTWTFSS
    • Direct flight DCA → YOW5x/week
      Duration
      1h 31m
      Days
      MTWTFSS
    38.3%Open →

Cities and airports on the Washington, D.C. — Ottawa route

Flights Washington, D.C. — Ottawa depart from Washington Dulles International Airport, Baltimore/Washington International Thurgood Marshall Airport and Ronald Reagan National Airport and arrive at Ottawa Macdonald–Cartier International Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Washington, D.C.

WAS
United States
About the cityHow to get thereWeatherAll about the country United States
Arrival

Ottawa

YOW
Canada
About the cityHow to get thereWeatherAll about the country Canada
Departure airports
Arrival airports

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Frequently asked questions about the Washington, D.C. — Ottawa flight

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

A nonstop Washington, D.C. — Ottawa flight takes about 1 h 31 min — the distance between the cities is around 732 km.

How far is it from Washington, D.C. to Ottawa?

The distance from Washington, D.C. to Ottawa is about 732 km, which a nonstop flight covers in around 1 h 31 min.

Are there direct flights from Washington, D.C. to Ottawa?

Yes, there are nonstop flights Washington, D.C. — Ottawa — around 115 flights per week.

Which airlines fly from Washington, D.C. to Ottawa?

Airlines operating Washington, D.C. — Ottawa include United Airlines, Air Canada. See the full list with schedules in the "Airlines" section on this page.

Which airports do Washington, D.C. — Ottawa flights use?

Flights from Washington, D.C. depart from Washington Dulles International Airport, Baltimore/Washington International Thurgood Marshall Airport, Ronald Reagan National Airport, and arrive at Ottawa Macdonald–Cartier International Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Washington, D.C. to Ottawa?

The price of a Washington, D.C. — Ottawa ticket depends on your travel date, season and demand. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Washington, D.C. — Ottawa?

Flights Washington, D.C. — Ottawa are usually cheaper when booked in advance — a few weeks before departure and away from peak dates. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Washington, D.C. to Ottawa?

To catch a low fare Washington, D.C. — Ottawa, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from Washington, D.C.

See all
New York CityChicagoAtlantaBostonOrlandoTorontoCharlotteHoustonDetroitSeattleMinneapolisDallasMiamiFort LauderdaleMontrealDenverRaleighLos AngelesNashvilleSan FranciscoPittsburghTampaIndianapolisBuffaloCincinnatiProvidencePhiladelphiaLondonRochesterKnoxvilleColumbusClevelandAlbanySouth PortlandNorth CharlestonSan SalvadorSan DiegoBurlingtonSavannahNorfolk

Where else you can fly from Ottawa

See all
TorontoMontrealHalifaxCalgaryNew York CityVancouverWinnipegMonctonEdmontonChicagoQuebec CityFrederictonCancunPunta CanaThunder BayLondonFort LauderdaleParisBostonLiberiaSt. John'sOrlandoCharlottetownNassauMontego BayIqaluitWindsorPuerto PlataKuujjuaqTampaVictoriaFort MyersMexico CityTokyo

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