WAS - YOW

C$ 120 Find Cheap Flights from Washington, D.C. to Ottawa – Compare and Save

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Everything you should know

Cheapest round-trip
C$ 380
Typical prices: C$ 593-C$ 852
Air Canada
Mon 10/12Mon 17/12
IAD - YOW • 1 stop
Cheapest direct flights
C$ 574
Typical prices: C$ 612-C$ 904
Air Canada
Mon 10/12Mon 17/12
IAD - YOW • Direct
Direct flights
You can fly direct with United Airlines and Air Canada. Average duration is 1h 46m
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 • 12% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg C$ 637 (round-trip)
Shortest trip • 4h 02m (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

Thu, 10 Dec - Thu, 17 Dec
Air Canada Logo
5:20 p.m. - 9:52 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
4h 32m1 stop Toronto Island
Air Canada Logo
9:00 a.m. - 3:45 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
6h 45m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
C$ 380Air Canada
Thu, 10 Dec - Thu, 17 Dec
Air Canada Logo
5:20 p.m. - 9:52 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
4h 32m1 stop Toronto Island
Air Canada Logo
6:00 a.m. - 3:45 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
9h 45m1 stop Toronto Pearson Intl
C$ 394Air Canada
Sat, 12 Dec - Mon, 14 Dec
Porter Airlines Logo
11:20 a.m. - 4:38 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
5h 18m1 stop Toronto Island
Porter Airlines Logo
12:15 p.m. - 5:45 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
5h 30m1 stop Toronto Island
C$ 430Porter Airlines
Sat, 12 Dec - Mon, 14 Dec
Porter Airlines Logo
11:20 a.m. - 4:38 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
5h 18m1 stop Toronto Island
Porter Airlines Logo
12:15 p.m. - 5:45 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
5h 30m1 stop Toronto Island
C$ 432Porter Airlines
Thu, 10 Dec - Thu, 17 Dec
Air Canada Logo
6:00 a.m. - 11:37 a.m.DCA  Washington, D.C. Reagan-National-YOW Ottawa
5h 37m1 stop Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
10:50 a.m. - 3:24 p.m.YOW  Ottawa-DCA Washington, D.C. Reagan-National
4h 34m1 stop Montreal Pierre Elliott Trudeau Intl
C$ 444Air Canada
Fri, 27 Nov - Mon, 30 Nov
Porter Airlines Logo
11:20 a.m. - 4:37 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
5h 17m1 stop Toronto Island
Porter Airlines Logo
12:15 p.m. - 5:44 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
5h 29m1 stop Toronto Island
C$ 457Porter Airlines
Mon, 16 Nov - Mon, 23 Nov
Multiple Airlines Logo
6:07 p.m. - 5:24 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
23h 17m1 stop Fort Lauderdale
Multiple Airlines Logo
12:15 p.m. - 5:44 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
5h 29m1 stop Toronto Island
C$ 458Multiple Airlines
Wed, 18 Nov - Mon, 23 Nov
Porter Airlines Logo
11:20 a.m. - 4:37 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
5h 17m1 stop Toronto Island
Porter Airlines Logo
12:15 p.m. - 5:44 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
5h 29m1 stop Toronto Island
C$ 459Porter Airlines
Mon, 16 Nov - Mon, 23 Nov
Porter Airlines Logo
11:20 a.m. - 6:12 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
6h 52m1 stop Toronto Island
Porter Airlines Logo
12:15 p.m. - 5:44 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
5h 29m1 stop Toronto Island
C$ 464Porter Airlines
Mon, 16 Nov - Mon, 23 Nov
Multiple Airlines Logo
6:07 p.m. - 5:24 p.m.IAD  Washington, D.C. Dulles Intl-YOW Ottawa
23h 17m1 stop Fort Lauderdale
Multiple Airlines Logo
7:05 a.m. - 10:02 p.m.YOW  Ottawa-IAD Washington, D.C. Dulles Intl
14h 57m1 stop Fort Lauderdale
C$ 471Multiple 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 with more confidence.

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

Round-trip flights from Washington, D.C. to Ottawa typically range from C$ 593 to C$ 852. The lowest price found in the past 5 days was C$ 380, on Air Canada.

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$ 687 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?

Based on deals KAYAK users found in the last 12 months, Thursday is the cheapest day of the week to fly from Washington, D.C. to Ottawa. It's 5% cheaper than the average day, while Monday is the most expensive, with prices 14% higher.

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

•September is the cheapest month to fly from Washington, D.C. to Ottawa at C$ 612 round-trip.
•February (C$ 885) and April (C$ 806) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 44% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights 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 United Airlines, Air Canada 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

January

Cheapest flight

C$ 120
Beat the crowds with an average 38% drop in traveller numbers.
The most popular month to fly with an average 46% increase in traveller numbers.
One-way flight from Washington, D.C. Reagan-National 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 answers about this route, including flight times, airports, airlines, and booking tips.

  • 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 12:55 pm and lands at 2:41 pm
    • Latest: departs at 5:40 pm and lands at 7:26 pm.

    The flight takes about 1h 46m.

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

    A direct flight from Washington, D.C. to Ottawa takes 1h 46m, 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.

  • 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$ 593 to C$ 852, with an average of C$ 694 over the past 12 months. Anything below C$ 593 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 72% above the C$ 694 route average. Book 15 weeks before departure for the lowest fares.

  • 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$ 637 round-trip via Toronto Island (YTZ), compared to C$ 719 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$ 101 for the first checked bag in economy. Premium fares and elite status bookings typically include a free checked bag.

  • 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%.

  • 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$ 380 to C$ 2,572. That means the highest observed fare was about 7x higher than the lowest one.

  • 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.

  • 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$ 167, which is 53% below the typical average for this route.

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

    Ottawa Airport (YOW) hosts 5 major car rental companies, with daily rates averaging C$ 59 for economy cars. Top options include:

    • Routes Car & Truck Rentals
    • Europcar
    • Alamo
    • Budget
    • Enterprise Rent-A-Car

  • 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 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) – 92% of one-stop connections
    • Toronto Pearson Intl (YYZ) – 5% of one-stop connections
    • Newark (EWR) – 1% of one-stop connections
    • Montreal Pierre Elliott Trudeau Intl (YUL) – 1% of one-stop connections

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

    Yes. Flexible dates can save you up to 17% on flights from Washington, D.C. to Ottawa. Thursday is the cheapest departure day at C$ 661 round-trip on average, while Monday is the most expensive at C$ 793, a difference of C$ 133.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • Which airlines fly 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

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

    Flying via Montreal Pierre Elliott Trudeau Intl (YUL) gives the shortest average 1-stop total travel time at 4h 02m, compared with 4h 16m via Toronto Island (YTZ) and 4h 20m via Newark (EWR).

  • Which popular places can I visit in Ottawa?

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

  • 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 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

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

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 and avoid flying on Monday. On this route, Thursday flights average C$ 661, about C$ 133 less than Monday fares (17% 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 September. Fares historically average C$ 612 round-trip in that month – typically C$ 274 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 Toronto Island Airport (YTZ) can be cheaper than flying direct. The cheapest layover option averages C$ 637 round-trip on this route – about C$ 82 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
    • Ramada by Wyndham Ottawa On The Rideau

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