SEA - YOW

C$ 344 Find Cheap Flights from Seattle to Ottawa – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
C$ 628
Typical prices: C$ 633-C$ 997
WestJet
Sat 27/1Wed 31/1
SEA - YOW • 2 stops
Cheapest one-way flights
C$ 344
Typical prices: C$ 244-C$ 512
WestJet
Mon 12/11
SEA - YOW • 1 stop
Direct flights
Not available
There are currently no direct flights between Seattle and Ottawa. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
April
Cheapest • 41% price drop
September
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Calgary (YYC)
Cheapest • Avg C$ 735 (round-trip)
Vancouver Intl (YVR)
Shortest trip • 8h 13m (one-way)
Insights
Insights
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We hope you enjoy your trip to Ottawa!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Ottawa (SEA-YOW)

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

Recent round-trip flight deals from Seattle to Ottawa

Mon, 23 Nov - Tue, 1 Dec
Air Canada Logo
10:10 a.m. - 10:32 p.m.SEA  Seattle/Tacoma Intl-YOW Ottawa
9h 22m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
7:00 a.m. - 6:22 p.m.YOW  Ottawa-SEA Seattle/Tacoma Intl
14h 22m2 stops Toronto Pearson Intl Vancouver Intl
C$ 660Air Canada
Mon, 23 Nov - Tue, 1 Dec
Multiple Airlines Logo
10:10 a.m. - 11:11 p.m.SEA  Seattle/Tacoma Intl-YOW Ottawa
10h 01m2 stops Vancouver Intl Calgary
Multiple Airlines Logo
6:10 a.m. - 1:40 p.m.YOW  Ottawa-SEA Seattle/Tacoma Intl
10h 30m1 stop Calgary
C$ 674Multiple Airlines
Sat, 5 Dec - Sun, 13 Dec
Multiple Airlines Logo
10:10 a.m. - 10:32 p.m.SEA  Seattle/Tacoma Intl-YOW Ottawa
9h 22m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl
Multiple Airlines Logo
6:10 a.m. - 1:40 p.m.YOW  Ottawa-SEA Seattle/Tacoma Intl
10h 30m1 stop Calgary
C$ 676Multiple Airlines
Sat, 5 Dec - Sun, 13 Dec
Air Canada Logo
7:45 a.m. - 7:30 p.m.SEA  Seattle/Tacoma Intl-YOW Ottawa
8h 45m1 stop Toronto Pearson Intl
Air Canada Logo
2:00 p.m. - 8:59 p.m.YOW  Ottawa-SEA Seattle/Tacoma Intl
9h 59m1 stop Toronto Pearson Intl
C$ 684Air Canada
Mon, 23 Nov - Tue, 1 Dec
Multiple Airlines Logo
7:45 a.m. - 7:45 p.m.SEA  Seattle/Tacoma Intl-YOW Ottawa
9h 00m1 stop Toronto Pearson Intl
Multiple Airlines Logo
6:10 a.m. - 1:40 p.m.YOW  Ottawa-SEA Seattle/Tacoma Intl
10h 30m1 stop Calgary
C$ 691Multiple Airlines
Sat, 5 Dec - Sun, 13 Dec
Multiple Airlines Logo
10:10 a.m. - 10:32 p.m.SEA  Seattle/Tacoma Intl-YOW Ottawa
9h 22m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl
Multiple Airlines Logo
5:10 a.m. - 8:04 p.m.YOW  Ottawa-SEA Seattle/Tacoma Intl
17h 54m2 stops Toronto Pearson Intl Los Angeles
C$ 736Multiple Airlines
Mon, 23 Nov - Mon, 30 Nov
WestJet Logo
2:30 p.m. - 2:30 p.m.SEA  Seattle/Tacoma Intl-YOW Ottawa
21h 00m1 stop Calgary
WestJet Logo
4:15 p.m. - 1:40 p.m.YOW  Ottawa-SEA Seattle/Tacoma Intl
24h 25m1 stop Calgary
C$ 761WestJet
Fri, 20 Nov - Sun, 22 Nov
Multiple Airlines Logo
3:43 p.m. - 2:32 p.m.SEA  Seattle/Tacoma Intl-YOW Ottawa
19h 49m1 stop Newark
Multiple Airlines Logo
6:10 a.m. - 1:40 p.m.YOW  Ottawa-SEA Seattle/Tacoma Intl
10h 30m1 stop Calgary
C$ 776Multiple Airlines
Mon, 23 Nov - Mon, 30 Nov
WestJet Logo
2:30 p.m. - 11:40 p.m.SEA  Seattle/Tacoma Intl-YOW Ottawa
30h 10m2 stops Calgary Toronto Pearson Intl
WestJet Logo
4:15 p.m. - 1:40 p.m.YOW  Ottawa-SEA Seattle/Tacoma Intl
24h 25m1 stop Calgary
C$ 779WestJet
Wed, 9 Dec - Wed, 16 Dec
Air Canada Logo
10:10 a.m. - 10:32 p.m.SEA  Seattle/Tacoma Intl-YOW Ottawa
9h 22m2 stops Vancouver Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
7:45 a.m. - 2:37 p.m.YOW  Ottawa-SEA Seattle/Tacoma Intl
9h 52m1 stop Vancouver Intl
C$ 785Air Canada
Booking Insights

Price, demand, and travel trends for Seattle 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 Seattle to Ottawa?

Round-trip flights from Seattle to Ottawa typically range from C$ 633 to C$ 997. The lowest price found in the past 5 days was C$ 628, on WestJet.

What's the cheapest day of the week to fly from Seattle to Ottawa?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Seattle to Ottawa. It's 18% cheaper than the average day, while Tuesday is the most expensive, with prices 16% higher.

Find deals

Key details for Seattle to Ottawa flights

Low season

March

Cheapest flight

C$ 344
Beat the crowds with an average 71% drop in traveller numbers.
The most popular month to fly with an average 69% increase in traveller numbers.
One-way flight from Seattle to Ottawa

When to book flights from Seattle to Ottawa

Are your dates flexible? Find out the best times to travel from Seattle 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 Seattle to Ottawa flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • Which cabin classes can I book on flights from Seattle to Ottawa?

    Two cabin classes are available on flights from Seattle to Ottawa:

    • Economy Class
    • First Class

  • How long does a flight from Seattle to Ottawa take?

    A direct flight from Seattle to Ottawa takes 00m, covering 5,679 km.

  • Do I need a passport to fly from Seattle 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 Seattle to Ottawa flight?

    Round-trip flights from Seattle to Ottawa range from C$ 633 to C$ 997, with an average of C$ 834 over the past 12 months. Anything below C$ 633 counts as a good deal.

  • Have flight prices from Seattle 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$ 628 to C$ 3,429. That means the highest observed fare was about 5x higher than the lowest one.

  • How are flight prices from Seattle to Ottawa looking right now?

    One-way fares from Seattle to Ottawa are currently in line with typical prices for this route. Average one-way fares are about C$ 356.

  • 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 Seattle to Ottawa?

    Flights from Seattle to Ottawa usually depart from Seattle/Tacoma Intl (SEA) and arrive at Ottawa (YOW).

  • Which airports do connecting flights from Seattle to Ottawa pass through?

    One-stop flights from Seattle to Ottawa most commonly connect through:

    • Calgary (YYC) – 48% of one-stop connections
    • Vancouver Intl (YVR) – 20% of one-stop connections
    • Toronto Pearson Intl (YYZ) – 19% of one-stop connections
    • Chicago O'Hare Intl (ORD) – 10% of one-stop connections

  • Can I save money by using flexible dates for flights from Seattle to Ottawa?

    Yes. Flexible dates can save you up to 30% on flights from Seattle to Ottawa. Wednesday is the cheapest departure day at C$ 688 round-trip on average, while Tuesday is the most expensive at C$ 971, a difference of C$ 283.

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

  • How much time can I save by choosing a different layover airport when travelling from Seattle to Ottawa?

    Flying via Vancouver Intl (YVR) gives the shortest average 1-stop total travel time at 8h 13m, compared with 8h 18m via Chicago O'Hare Intl (ORD) and 8h 26m via Washington, D.C. Dulles Intl (IAD).

  • What is the time difference between Seattle and Ottawa?

    Ottawa is 3 hours ahead of Seattle (Eastern Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • 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.

Your guide to booking Seattle 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 Wednesday departure and avoid flying on Tuesday. On this route, Wednesday flights average C$ 688, about C$ 283 less than Tuesday fares (29% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Seattle to Ottawa trip for April. Fares historically average C$ 495 round-trip in that month – typically C$ 517 less than the most expensive month, which is July (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

More options for your flight from Seattle to Ottawa

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

Car rentals in Ottawa
Hotels in Ottawa
Vacations in Ottawa