WAS - YOW

C$ 199 Find Cheap Flights from Washington, D.C. to Ottawa – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
C$ 442
Typical prices: C$ 582-C$ 853
Multiple Airlines
Sun 28/10Thu 1/11
IAD - YOW • 1 stop
Cheapest direct flights
C$ 625
Typical prices: C$ 607-C$ 913
Air Canada
Sat 13/1Wed 17/1
DCA - YOW • Direct
Direct flights
You can fly direct with United Airlines and Air Canada. Average duration is 1h 42m
Direct flights
+1
Direct flights
+1
Top routes
Cheapest • 4% average savings
Most popular
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 15 weeks in advance save around 60% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 15% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg C$ 493 (round-trip)
Shortest trip • 4h 13m (one-way)
Insights
Insights
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We hope you enjoy your trip to Ottawa!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Washington, D.C. to Ottawa (WAS-YOW)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington, D.C. to Ottawa

Fri, 16 Oct - Sun, 18 Oct
Porter Airlines Logo
11:25 a.m. - 5:52 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
6h 27m1 stop Toronto Island
Porter Airlines Logo
10:40 a.m. - 3:10 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
4h 30m1 stop Toronto Island
C$ 445Porter Airlines
Fri, 23 Oct - Tue, 27 Oct
Multiple Airlines Logo
3:50 p.m. - 8:02 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
4h 12m1 stop Toronto Island
Multiple Airlines Logo
7:05 a.m. - 8:11 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
13h 06m1 stop Fort Lauderdale
C$ 446Multiple Airlines
Wed, 7 Oct - Wed, 4 Nov
Multiple Airlines Logo
6:13 p.m. - 12:20 a.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
30h 07m2 stops Fort Lauderdale Toronto Pearson Intl
Multiple Airlines Logo
7:05 a.m. - 8:11 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
13h 06m1 stop Fort Lauderdale
C$ 449Multiple Airlines
Wed, 7 Oct - Wed, 4 Nov
Multiple Airlines Logo
6:13 p.m. - 12:20 a.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
30h 07m2 stops Fort Lauderdale Toronto Pearson Intl
Multiple Airlines Logo
7:05 a.m. - 8:11 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
13h 06m1 stop Fort Lauderdale
C$ 456Multiple Airlines
Thu, 29 Oct - Sun, 1 Nov
Porter Airlines Logo
11:20 a.m. - 4:09 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
4h 49m1 stop Toronto Island
Porter Airlines Logo
12:15 p.m. - 5:43 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
5h 28m1 stop Toronto Island
C$ 460Porter Airlines
Mon, 26 Oct - Mon, 2 Nov
Porter Airlines Logo
11:20 a.m. - 4:09 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
4h 49m1 stop Toronto Island
Porter Airlines Logo
12:15 p.m. - 5:43 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
5h 28m1 stop Toronto Island
C$ 460Porter Airlines
Mon, 19 Oct - Fri, 23 Oct
Porter Airlines Logo
3:50 p.m. - 9:42 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
5h 52m1 stop Toronto Island
Porter Airlines Logo
10:40 a.m. - 3:10 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
4h 30m1 stop Toronto Island
C$ 464Porter Airlines
Mon, 19 Oct - Fri, 23 Oct
Porter Airlines Logo
11:25 a.m. - 5:52 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
6h 27m1 stop Toronto Island
Porter Airlines Logo
10:40 a.m. - 3:10 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
4h 30m1 stop Toronto Island
C$ 472Porter Airlines
Sun, 11 Oct - Sun, 18 Oct
Porter Airlines Logo
3:50 p.m. - 9:42 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
5h 52m1 stop Toronto Island
Porter Airlines Logo
10:40 a.m. - 3:10 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
4h 30m1 stop Toronto Island
C$ 478Porter Airlines
Mon, 9 Nov - Mon, 16 Nov
Porter Airlines Logo
11:20 a.m. - 4:09 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
4h 49m1 stop Toronto Island
Porter Airlines Logo
12:15 p.m. - 5:43 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
5h 28m1 stop Toronto Island
C$ 488Porter Airlines
Booking Insights

Price, demand, and travel trends for Washington, D.C. to Ottawa flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Washington, D.C. to Ottawa with more confidence.

What is the cheapest Washington, D.C. to Ottawa flight route?

There's little price difference between Washington, D.C. to Ottawa routes. They average around C$ 680 round-trip, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from Washington, D.C. to Ottawa?

Thursday is the cheapest day of the week to fly from Washington, D.C. to Ottawa and is 6% cheaper than the average day. Monday is the most expensive day with flight prices 17% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Washington, D.C. to Ottawa?

  • October is the cheapest month to fly from Washington, D.C. to Ottawa at C$ 585 round-trip.
  • February (C$ 924) and September (C$ 809) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 57% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Washington, D.C. to Ottawa the cheapest?

Flights from Washington, D.C. to Ottawa are cheapest 15 weeks before departure. Booking in this window typically costs about 60% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Washington, D.C. to Ottawa

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Air Canada, United Airlines and IAD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Mark Stachiew

Mark Stachiew

Expert on YOW

Mark Stachiew has been exploring the world and writing about it for more than 30 years. His travel stories have appeared in numerous newspapers, magazines and online publications in Canada, the United States and beyond.

Ramsey Qubein

Ramsey Qubein

Expert on DCA

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Key details for Washington, D.C. to Ottawa flights

Low season

February

Cheapest flight

C$ 192
Best time to beat the crowds but there is an average 34% increase in price.
Most popular time to fly (10% more expensive on average)
Flights from Washington, D.C. Dulles Intl Airport to Ottawa

When to book flights from Washington, D.C. to Ottawa

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Ottawa based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Washington, D.C. to Ottawa flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • Which airlines offer extra legroom and free seat selection on Washington, D.C. to Ottawa flights?

    Among airlines operating Washington, D.C. to Ottawa flights:

    • Air Canada: offers free seat selection
    • United Airlines: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines are available on the route from Washington, D.C. to Ottawa?

    2 airlines operate flights between Washington, D.C. and Ottawa. The airlines offering direct flights on this route include:

    • United Airlines
    • Air Canada

  • Which airports can I use when flying from Washington, D.C. to Ottawa?

    Flights from Washington, D.C. to Ottawa may depart from several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD). Flights usually arrive at Ottawa (YOW).

  • Which airlines include bags at no extra cost on Washington, D.C. to Ottawa flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Air Canada: a carry-on bag and a checked bag in Economy Class
    • United Airlines: a carry-on bag and a checked bag in Economy Class
    • Avianca: a cabin bag in Economy Class class

    Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

  • Which cabin classes can I book on flights from Washington, D.C. to Ottawa?

    Three cabin classes are available on flights from Washington, D.C. to Ottawa:

    • Economy Class
    • Business Class
    • First Class

  • How much can I save by taking a layover when flying from Washington, D.C. to Ottawa?

    On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 493 round-trip via Orlando (MCO), compared to C$ 717 for direct.

  • What is the standard checked bag allowance on flights from Washington, D.C. to Ottawa?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 56–C$ 139 for the first checked bag in economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which airports do connecting flights from Washington, D.C. to Ottawa pass through?

    One-stop flights from Washington, D.C. to Ottawa most commonly connect through:

    • Toronto Island (YTZ) – 97% of one-stop connections
    • Newark (EWR) – 1% of one-stop connections
    • Orlando (MCO) – 1% of one-stop connections
    • Toronto Pearson Intl (YYZ) – 1% of one-stop connections

    Toronto Island (YTZ) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Washington, D.C. to Ottawa?

    Yes. Being flexible with your travel dates can save you up to 20% on the Washington, D.C. to Ottawa route. Thursday is the cheapest departure day at C$ 652 round-trip on average, while Monday is the most expensive at C$ 809, a difference of C$ 157. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How are flight departures from Washington, D.C. to Ottawa spread across the day?

    Afternoon is the busiest departure period on Washington, D.C. to Ottawa flights, with 66% leaving in that window. Evening departures account for 33%, Morning flights for 1%, and Night flights for 0%.

  • Which popular places can I visit in Ottawa?

    Some of the most popular sights in Ottawa are Shaw Centre, National Arts Centre, and Canal Rideau Memorial. These are among the most viewed places in Ottawa on KAYAK.

  • What are the earliest and latest flights from Washington, D.C. to Ottawa?

    These are the earliest and latest flight times available from Washington, D.C. to Ottawa:

    • Earliest: departs at 8:15 am and lands at 9:57 am
    • Latest: departs at 10:10 pm and lands at 11:52 pm.

    The flight takes about 1h 42m.

  • How expensive are last-minute Washington, D.C. to Ottawa flights?

    Last-minute fares on this route – booked within 2 weeks of departure – run 75% above the route average of C$ 689. Book 15 weeks before departure for the lowest fares.

  • How long does a flight from Washington, D.C. to Ottawa take?

    A direct flight from Washington, D.C. to Ottawa takes 1h 42m, covering 1,162 km.

  • Do I need a passport to fly from Washington, D.C. to Ottawa?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Washington, D.C. to Ottawa changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about C$ 442 to C$ 2,465. That means the highest observed fare was about 6x higher than the lowest one.

  • How are flight prices from Washington, D.C. to Ottawa looking right now?

    One-way fares from Washington, D.C. to Ottawa are currently lower than usual. Average one-way flight prices are about C$ 205, which is 45% below the typical average for this route.

  • How much time can I save by choosing a different layover airport when travelling from Washington, D.C. to Ottawa?

    Flying via Toronto Island (YTZ) gives the shortest average 1-stop total travel time at 4h 13m, compared with 4h 20m via Newark (EWR) and 8h 27m via Toronto Pearson Intl (YYZ).

  • What car rental options are available at Ottawa Airport (YOW)?

    Ottawa Airport (YOW) hosts 5 major car rental companies, with daily rates starting from around C$ 18 for economy cars. Top options include:
    • Routes Car & Truck Rentals
    • Europcar
    • Alamo
    • Budget
    • Enterprise Rent-A-Car

  • How much should I expect to pay for a Washington, D.C. to Ottawa flight?

    Round-trip flights from Washington, D.C. to Ottawa range from C$ 582 to C$ 853, with an average of C$ 689 over the past 12 months. Anything below C$ 582 counts as a good deal.

  • Which airlines offer Wi-Fi on Washington, D.C. to Ottawa flights?

    Air Canada is the only airline on the Washington, D.C. to Ottawa route offering in-flight Wi-Fi. Pricing depends on fare class.

Your guide to booking Washington, D.C. to Ottawa flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Thursday departure instead of Monday. On this route, Thursday flights average C$ 652 – about C$ 157 less than Monday (19% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 15 weeks before you fly. On this route, that window historically saves about 60% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Washington, D.C. to Ottawa trip for October. Fares historically average C$ 585 round-trip in that month – typically C$ 339 less than the most expensive month, which is February (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Orlando Airport (MCO) can be cheaper than flying direct. The cheapest layover option averages C$ 493 round-trip on this route – about C$ 224 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Ottawa Airport.
    - Hilton Garden Inn Ottawa Airport
    - Hampton Inn by Hilton Ottawa Airport
    - Fairfield Inn & Suites by Marriott Ottawa Airport

Prefer to fly direct from Washington, D.C. to Ottawa?

 
Find which airlines fly direct from Washington, D.C. to Ottawa Airport, which days they fly and book direct flights.

Direct departures

Washington, D.C. to Ottawa

Monday

Air Canada,United Airlines

Air Canada,United Airlines

Tuesday

Air Canada,United Airlines

Air Canada,United Airlines

Wednesday

Air Canada,United Airlines

Air Canada,United Airlines

Thursday

Air Canada,United Airlines

Air Canada,United Airlines

Friday

Air Canada,United Airlines

Air Canada,United Airlines

Saturday

Air Canada,United Airlines

Air Canada,United Airlines

Sunday

Air Canada,United Airlines

Air Canada,United Airlines

See more nonstop flights

Direct returns

Ottawa to Washington, D.C.

Monday

Air Canada,United Airlines

Air Canada,United Airlines

Tuesday

Air Canada,United Airlines

Air Canada,United Airlines

Wednesday

Air Canada,United Airlines

Air Canada,United Airlines

Thursday

Air Canada,United Airlines

Air Canada,United Airlines

Friday

Air Canada,United Airlines

Air Canada,United Airlines

Saturday

Air Canada,United Airlines

Air Canada,United Airlines

Sunday

Air Canada,United Airlines

Air Canada,United Airlines

See more nonstop flights

More options for your flight from Washington, D.C. to Ottawa

Complete your trip to Ottawa with a hotel stay or car rental