YOW - WAS

C$ 254 Find Cheap Flights from Ottawa to Washington, D.C. – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
C$ 436
Typical prices: C$ 465-C$ 670
Porter Airlines
Tue 9/10Fri 12/10
YOW - IAD • 1 stop
Cheapest direct flights
C$ 502
Typical prices: C$ 503-C$ 724
Air Canada
Thu 1/3Sun 4/3
YOW - DCA • Direct
Direct flights
Every day
You can fly direct with United Airlines and Air Canada. Average duration is 1h 48m
Direct flights
+1
Direct flights
+1
Top routes
YOW - DCA
Cheapest • 1% average savings
YOW - IAD
Most popular
Insights
Insights
When to travel
January
Cheapest • 14% price drop
December
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Montreal Pierre Elliott Trudeau Intl (YUL)
Cheapest • Avg C$ 412 (round-trip)
Toronto Island (YTZ)
Shortest trip • 4h 00m (one-way)
Insights
Insights
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We hope you enjoy your trip to Washington, D.C.!
Flight Deals
Booking Insights
Expert advice
Flight Deals

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

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

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

Fri, 9 Oct - Mon, 12 Oct
Porter Airlines Logo
10:40 a.m. - 3:10 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
4h 30m1 stop Toronto Island
Porter Airlines Logo
3:50 p.m. - 8:02 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
4h 12m1 stop Toronto Island
C$ 436Porter Airlines
Fri, 23 Oct - Sun, 25 Oct
Porter Airlines Logo
10:40 a.m. - 3:10 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
4h 30m1 stop Toronto Island
Porter Airlines Logo
11:20 a.m. - 4:09 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
4h 49m1 stop Toronto Island
C$ 436Porter Airlines
Thu, 8 Oct - Tue, 13 Oct
Porter Airlines Logo
10:40 a.m. - 3:10 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
4h 30m1 stop Toronto Island
Porter Airlines Logo
11:25 a.m. - 5:52 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
6h 27m1 stop Toronto Island
C$ 436Porter Airlines
Thu, 15 Oct - Mon, 19 Oct
Air Canada Logo
11:15 a.m. - 2:57 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
3h 42m1 stop Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
5:20 p.m. - 9:52 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
4h 32m1 stop Toronto Island
C$ 451Air Canada
Thu, 15 Oct - Mon, 19 Oct
Air Canada Logo
5:50 p.m. - 9:50 p.m.YOW  Ottawa-DCA Washington, D.C. Reagan-National
4h 00m1 stop Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
4:20 p.m. - 10:10 p.m.DCA  Washington, D.C. Reagan-National-YOW Ottawa
5h 50m1 stop Montreal Pierre Elliott Trudeau Intl
C$ 457Air Canada
Sat, 17 Oct - Sat, 7 Nov
Air Canada Logo
11:15 a.m. - 3:00 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
3h 45m1 stop Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
5:20 p.m. - 9:52 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
4h 32m1 stop Toronto Island
C$ 474Air Canada
Tue, 27 Oct - Tue, 3 Nov
Multiple Airlines Logo
7:05 a.m. - 8:11 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
13h 06m1 stop Fort Lauderdale
Multiple Airlines Logo
6:07 p.m. - 5:58 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
23h 51m2 stops Fort Lauderdale Toronto Pearson Intl
C$ 496Multiple Airlines
Mon, 26 Oct - Mon, 2 Nov
Multiple Airlines Logo
7:05 a.m. - 1:01 p.m.YOW  Ottawa-BWI Baltimore/Washington
29h 56m1 stop Fort Lauderdale
Multiple Airlines Logo
1:56 p.m. - 5:58 p.m.BWI  Baltimore/Washington-YOW Ottawa
28h 02m2 stops Fort Lauderdale Toronto Pearson Intl
C$ 499Multiple Airlines
Sun, 4 Oct - Mon, 5 Oct
United Airlines Logo
6:05 a.m. - 10:59 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
16h 54m1 stop Newark
United Airlines Logo
8:15 a.m. - 9:56 a.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
1h 41mdirect
C$ 539United Airlines
Wed, 23 Dec - Tue, 29 Dec
United Airlines Logo
2:00 p.m. - 4:01 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
2h 01mdirect
United Airlines Logo
1:17 p.m. - 3:07 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
1h 50mdirect
C$ 571United Airlines
Booking Insights

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

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

How much is a round-trip flight from Ottawa to Washington, D.C.?

Round-trip flights from Ottawa to Washington, D.C. start at C$ 436. Prices are below average for this route right now, with typical round-trip fares ranging from C$ 465 to C$ 670. The lowest price found in the past 5 days was C$ 436 on Porter Airlines.

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

There's little price difference between Ottawa to Washington, D.C. routes. They average around C$ 554 round-trip, based on KAYAK data over the past 12 months.

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

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

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

  • January is the cheapest month to fly from Ottawa to Washington, D.C. at C$ 475 round-trip.
  • February (C$ 624) and September (C$ 622) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 31% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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Expert advice

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

 
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, DCA 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.

Read more
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.

Read more

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

Low season

February

Cheapest flight

C$ 254
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly and prices are also 12% lower on average.
Flights from Ottawa to Baltimore

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

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

Your Ottawa to Washington, D.C. 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 Ottawa to Washington, D.C. flights?

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

    • Air Canada: offers extra legroom; 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 Ottawa to Washington, D.C.?

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

    • United Airlines
    • Air Canada

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

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

  • Which airlines include bags at no extra cost on Ottawa to Washington, D.C. 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
    • Lufthansa: a carry-on bag and a checked bag in Economy 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 Ottawa to Washington, D.C.?

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

    • Economy Class
    • Business Class

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

    On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 412 round-trip via Montreal Pierre Elliott Trudeau Intl (YUL), compared to C$ 589 for direct.

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

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 34–C$ 127 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 Ottawa to Washington, D.C. pass through?

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

    • Toronto Island (YTZ) – 95% of one-stop connections
    • Toronto Pearson Intl (YYZ) – 2% of one-stop connections
    • Montreal Pierre Elliott Trudeau Intl (YUL) – 2% of one-stop connections
    • Newark (EWR) – 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 Ottawa to Washington, D.C.?

    Yes. Being flexible with your travel dates can save you up to 16% on the Ottawa to Washington, D.C. route. Monday is the cheapest departure day at C$ 527 round-trip on average, while Tuesday is the most expensive at C$ 624, a difference of C$ 97. 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 Ottawa to Washington, D.C. spread across the day?

    Morning is the busiest departure period on Ottawa to Washington, D.C. flights, with 67% leaving in that window. Afternoon departures account for 33%, Evening flights for 0%, and Night flights for 0%.

  • Which popular places can I visit in Washington, D.C.?

    Some of the most popular sights in Washington, D.C. are Capital One Arena, National Mall, and Kennedy Center. These are among the most viewed places in Washington, D.C. on KAYAK.

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

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

    • Earliest: departs at 6:00 am and lands at 7:48 am
    • Latest: departs at 7:30 pm and lands at 9:18 pm.

    The flight takes about 1h 48m.

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

    A direct flight from Ottawa to Washington, D.C. takes 1h 48m, covering 1,162 km.

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

    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 Ottawa to Washington, D.C. 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$ 432 to C$ 2,506. That means the highest observed fare was about 6x higher than the lowest one.

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

    One-way fares from Ottawa to Washington, D.C. are currently lower than usual. Average one-way flight prices are about C$ 277, which is 29% below the typical average for this route.

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

    Flying via Toronto Island (YTZ) gives the shortest average 1-stop total travel time at 4h 00m, compared with 4h 09m via Montreal Pierre Elliott Trudeau Intl (YUL) and 4h 27m via Toronto Pearson Intl (YYZ).

  • What car rental options are available in Washington, D.C.?

    Since Washington, D.C. is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
    Near Washington, D.C. Reagan-National Airport (DCA) – daily rates from around C$ 32:

    • Sixt
    • Dollar
    • Thrifty
    • Alamo
    • Budget

    Near Washington, D.C. Dulles Intl Airport (IAD) – daily rates from around C$ 33:

    • Dollar
    • Budget
    • Hertz
    • Sixt
    • Thrifty

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

    Round-trip flights from Ottawa to Washington, D.C. range from C$ 465 to C$ 670, with an average of C$ 555 over the past 12 months. Anything below C$ 465 counts as a good deal.

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

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

Your guide to booking Ottawa to Washington, D.C. 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 Monday departure instead of Tuesday. On this route, Monday flights average C$ 527 – about C$ 97 less than Tuesday (16% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Ottawa to Washington, D.C. trip for January. Fares historically average C$ 475 round-trip in that month – typically C$ 149 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 Montreal Pierre Elliott Trudeau Intl Airport (YUL) can be cheaper than flying direct. The cheapest layover option averages C$ 412 round-trip on this route – about C$ 178 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 Washington, D.C. Reagan-National Airport.
    - Hyatt House Washington DC The Wharf
    - Intercontinental Hotels Washington D.C. - The Wharf By IHG
    - Canopy by Hilton Washington D.C - The Wharf

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

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

Direct departures

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

Direct returns

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

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

Complete your trip to Washington, D.C. with a hotel stay or car rental

Car rentals in Washington, D.C.
Hotels in Washington, D.C.
Vacations in Washington, D.C.