YOW - WAS

$180 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
$311
Typical prices: $334-$482
Porter Airlines
Mon 10/15Fri 10/19
YOW - IAD • 1 stop
Cheapest non-stop
$361
Typical prices: $362-$521
Air Canada
Thu 3/1Sun 3/4
YOW - DCA • Non-stop
Nonstop 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 $296 (round-trip)
Toronto Island (YTZ)
Shortest trip • 4h 00m (one-way)
Insights
Insights
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We hope you love 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.

Thu, Oct 15 - Mon, Oct 19
Porter Airlines Logo
10:40 am - 3:10 pmYOW  Ottawa-IAD Washington, D.C. Dulles Intl
4h 30m1 stop Toronto Island
Porter Airlines Logo
11:25 am - 5:52 pmIAD  Washington, D.C. Dulles Intl-YOW Ottawa
6h 27m1 stop Toronto Island
$311Porter Airlines
Thu, Oct 8 - Tue, Oct 13
Porter Airlines Logo
10:40 am - 3:10 pmYOW  Ottawa-IAD Washington, D.C. Dulles Intl
4h 30m1 stop Toronto Island
Porter Airlines Logo
11:25 am - 5:52 pmIAD  Washington, D.C. Dulles Intl-YOW Ottawa
6h 27m1 stop Toronto Island
$314Porter Airlines
Fri, Oct 23 - Sun, Oct 25
Porter Airlines Logo
10:40 am - 3:10 pmYOW  Ottawa-IAD Washington, D.C. Dulles Intl
4h 30m1 stop Toronto Island
Porter Airlines Logo
11:20 am - 4:09 pmIAD  Washington, D.C. Dulles Intl-YOW Ottawa
4h 49m1 stop Toronto Island
$314Porter Airlines
Fri, Oct 9 - Mon, Oct 12
Porter Airlines Logo
10:40 am - 3:10 pmYOW  Ottawa-IAD Washington, D.C. Dulles Intl
4h 30m1 stop Toronto Island
Porter Airlines Logo
3:50 pm - 8:02 pmIAD  Washington, D.C. Dulles Intl-YOW Ottawa
4h 12m1 stop Toronto Island
$314Porter Airlines
Thu, Oct 15 - Mon, Oct 19
Air Canada Logo
11:15 am - 2:57 pmYOW  Ottawa-IAD Washington, D.C. Dulles Intl
3h 42m1 stop Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
5:20 pm - 9:52 pmIAD  Washington, D.C. Dulles Intl-YOW Ottawa
4h 32m1 stop Toronto Island
$325Air Canada
Thu, Oct 15 - Mon, Oct 19
Air Canada Logo
5:50 pm - 9:50 pmYOW  Ottawa-DCA Washington, D.C. Reagan-National
4h 00m1 stop Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
4:20 pm - 10:10 pmDCA  Washington, D.C. Reagan-National-YOW Ottawa
5h 50m1 stop Montreal Pierre Elliott Trudeau Intl
$329Air Canada
Thu, Oct 15 - Mon, Oct 19
Air Canada Logo
6:00 am - 10:20 amYOW  Ottawa-DCA Washington, D.C. Reagan-National
4h 20m1 stop Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
4:20 pm - 10:10 pmDCA  Washington, D.C. Reagan-National-YOW Ottawa
5h 50m1 stop Montreal Pierre Elliott Trudeau Intl
$329Air Canada
Sun, Oct 4 - Mon, Oct 5
United Airlines Logo
6:05 am - 10:59 pmYOW  Ottawa-IAD Washington, D.C. Dulles Intl
16h 54m1 stop Newark
United Airlines Logo
8:15 am - 9:56 amIAD  Washington, D.C. Dulles Intl-YOW Ottawa
1h 41mnonstop
$388United Airlines
Mon, Dec 21 - Sun, Jan 10
United Airlines Logo
2:00 pm - 4:01 pmYOW  Ottawa-IAD Washington, D.C. Dulles Intl
2h 01mnonstop
United Airlines Logo
5:40 pm - 7:30 pmIAD  Washington, D.C. Dulles Intl-YOW Ottawa
1h 50mnonstop
$411United Airlines
Wed, Dec 23 - Tue, Dec 29
United Airlines Logo
2:00 pm - 4:01 pmYOW  Ottawa-IAD Washington, D.C. Dulles Intl
2h 01mnonstop
United Airlines Logo
1:17 pm - 3:07 pmIAD  Washington, D.C. Dulles Intl-YOW Ottawa
1h 50mnonstop
$411United 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 $311. Prices are below average for this route right now, with typical round-trip fares ranging from $334 to $482. The lowest price found in the past 5 days was $311 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 $399 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., it 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 $342 round-trip.
  • February ($449) and September ($448) 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 and United Airlines

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

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

Low season

February

Cheapest flight

$180
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.
Flight 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.

  • What airlines are available from Ottawa to Washington, D.C.?

    2 airlines operate flights between Ottawa and Washington, D.C.. The airlines offering nonstop 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 cabin bag and a checked bag in Economy Class
    • United Airlines: a cabin bag and a checked bag in Economy Class
    • Lufthansa: a cabin bag and a checked bag in Economy Class

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

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

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

    • Economy Class
    • Business Class
    • First 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 nonstop options on average. Layover fares average $296 round-trip via Montreal Pierre Elliott Trudeau Intl (YUL), compared to $424 for nonstop.

  • 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 $25–$92 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 $379 round-trip on average, while Tuesday is the most expensive at $449, a difference of $70. 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% of flights leaving in that window. Afternoon departures account for 33%, evening flights for 0%, and night flights for 0%.

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

    Some of the most popular sights in Washington, D.C. are Walter E. Washington Convention Center, National Mall and Capital One Arena. 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 is a flight from Ottawa to Washington, D.C.?

    A nonstop flight from Ottawa to Washington, D.C. takes 1h 48m, covering 448 miles.

  • 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 $311 to $1,846. 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 $202, which is 28% below the typical average for this route.

  • How much time can I save by choosing a different layover airport 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 $23:

    • Sixt
    • Dollar
    • Thrifty
    • Alamo
    • Budget

    Near Washington, D.C. Dulles Intl Airport (IAD) — daily rates from around $24:

    • 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 $334 to $482, with an average of $399 over the past 12 months. Anything below $334 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 can be flexible, aim for a Monday departure instead of Tuesday. On this route, Monday flights average $379 - about $70 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 $342 round-trip in that month - typically $107 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 $296 round-trip on this route - about $128 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
    - Pendry Washington DC - 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 direct 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 direct 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.