SEA - YOW

C$ 207 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$ 372
Typical prices: C$ 580-C$ 985
WestJet
Fri 19/10Mon 22/10
SEA - YOW • 1 stop
Cheapest one-way flights
C$ 207
Typical prices: C$ 244-C$ 772
Multiple Airlines
Thu 1/11
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 • 35% price drop
August
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Calgary (YYC)
Cheapest • Avg C$ 736 (round-trip)
Vancouver Intl (YVR)
Shortest trip • 8h 06m (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, 19 Oct - Thu, 22 Oct
WestJet Logo
7:35 p.m. - 5:35 a.m.SEA  Seattle/Tacoma Intl-YOW Ottawa
7h 00m1 stop Calgary
WestJet Logo
1:20 p.m. - 6:45 p.m.YOW  Ottawa-SEA Seattle/Tacoma Intl
8h 25m1 stop Calgary
C$ 372WestJet
Sat, 10 Oct - Mon, 19 Oct
WestJet Logo
7:35 p.m. - 5:35 a.m.SEA  Seattle/Tacoma Intl-YOW Ottawa
7h 00m1 stop Calgary
WestJet Logo
1:20 p.m. - 6:45 p.m.YOW  Ottawa-SEA Seattle/Tacoma Intl
8h 25m1 stop Calgary
C$ 388WestJet
Sat, 10 Oct - Mon, 19 Oct
WestJet Logo
7:35 p.m. - 5:35 a.m.SEA  Seattle/Tacoma Intl-YOW Ottawa
7h 00m1 stop Calgary
WestJet Logo
1:20 p.m. - 6:45 p.m.YOW  Ottawa-SEA Seattle/Tacoma Intl
8h 25m1 stop Calgary
C$ 399WestJet
Fri, 16 Oct - Thu, 22 Oct
WestJet Logo
7:35 p.m. - 5:35 a.m.SEA  Seattle/Tacoma Intl-YOW Ottawa
7h 00m1 stop Calgary
WestJet Logo
1:20 p.m. - 6:45 p.m.YOW  Ottawa-SEA Seattle/Tacoma Intl
8h 25m1 stop Calgary
C$ 401WestJet
Sat, 10 Oct - Mon, 19 Oct
WestJet Logo
10:30 a.m. - 12:20 a.m.SEA  Seattle/Tacoma Intl-YOW Ottawa
10h 50m2 stops Calgary Toronto Pearson Intl
WestJet Logo
1:20 p.m. - 6:45 p.m.YOW  Ottawa-SEA Seattle/Tacoma Intl
8h 25m1 stop Calgary
C$ 403WestJet
Sat, 10 Oct - Mon, 19 Oct
WestJet Logo
10:30 a.m. - 12:20 a.m.SEA  Seattle/Tacoma Intl-YOW Ottawa
10h 50m2 stops Calgary Toronto Pearson Intl
WestJet Logo
1:20 p.m. - 6:45 p.m.YOW  Ottawa-SEA Seattle/Tacoma Intl
8h 25m1 stop Calgary
C$ 408WestJet
Wed, 7 Oct - Wed, 14 Oct
WestJet Logo
7:35 p.m. - 5:35 a.m.SEA  Seattle/Tacoma Intl-YOW Ottawa
7h 00m1 stop Calgary
WestJet Logo
8:15 p.m. - 9:40 a.m.YOW  Ottawa-SEA Seattle/Tacoma Intl
16h 25m1 stop Calgary
C$ 415WestJet
Wed, 7 Oct - Sun, 11 Oct
WestJet Logo
7:35 p.m. - 5:35 a.m.SEA  Seattle/Tacoma Intl-YOW Ottawa
7h 00m1 stop Calgary
WestJet Logo
4:15 p.m. - 9:40 a.m.YOW  Ottawa-SEA Seattle/Tacoma Intl
20h 25m1 stop Calgary
C$ 417WestJet
Wed, 7 Oct - Wed, 14 Oct
WestJet Logo
7:35 p.m. - 5:35 a.m.SEA  Seattle/Tacoma Intl-YOW Ottawa
7h 00m1 stop Calgary
WestJet Logo
6:55 a.m. - 6:45 p.m.YOW  Ottawa-SEA Seattle/Tacoma Intl
14h 50m2 stops Toronto Pearson Intl Calgary
C$ 428WestJet
Wed, 7 Oct - Sun, 11 Oct
WestJet Logo
7:35 p.m. - 5:35 a.m.SEA  Seattle/Tacoma Intl-YOW Ottawa
7h 00m1 stop Calgary
WestJet Logo
6:15 p.m. - 9:40 a.m.YOW  Ottawa-SEA Seattle/Tacoma Intl
18h 25m2 stops Edmonton Calgary
C$ 434WestJet
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 from Seattle to Ottawa with more confidence.

How much is a round-trip flight from Seattle to Ottawa?

Round-trip flights from Seattle to Ottawa start at C$ 372. Prices are below average for this route right now, with typical round-trip fares ranging from C$ 580 to C$ 985. The lowest price found in the past 5 days was C$ 372 on WestJet.

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

Thursday is the cheapest day of the week to fly from Seattle to Ottawa and is 17% cheaper than the average day. Tuesday is the most expensive day with flight prices 19% higher than average. Based on deals found by KAYAK users in the last 12 months.

Find deals

Key details for Seattle to Ottawa flights

Low season

March

Cheapest flight

C$ 207
Most popular time to fly (16% more expensive on average)
Flights 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 route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

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

    Only Economy Class is available on flights from Seattle to Ottawa.

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

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

    • Calgary (YYC) – 47% of one-stop connections
    • Vancouver Intl (YVR) – 23% of one-stop connections
    • Toronto Pearson Intl (YYZ) – 19% of one-stop connections
    • Chicago O'Hare Intl (ORD) – 7% of one-stop connections

    Calgary (YYC) handles the largest share of one-stop connections on this route.

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

    Yes. Being flexible with your travel dates can save you up to 31% on the Seattle to Ottawa route. Thursday is the cheapest departure day at C$ 634 round-trip on average, while Tuesday is the most expensive at C$ 913, a difference of C$ 280. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • 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.

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

    A direct flight from Seattle to Ottawa takes 0h 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.

  • 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$ 372 to C$ 2,175. That means the highest observed fare was about 6x 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 lower than usual. Average one-way flight prices are about C$ 253, which is 37% below the typical average for this route.

  • 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 06m, compared with 8h 17m via Washington, D.C. Dulles Intl (IAD) and 8h 21m via Chicago O'Hare Intl (ORD).

  • 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.

  • 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 Seattle to Ottawa flight?

    Round-trip flights from Seattle to Ottawa range from C$ 580 to C$ 985, with an average of C$ 763 over the past 12 months. Anything below C$ 580 counts as a good deal.

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 Thursday departure instead of Tuesday. On this route, Thursday flights average C$ 634 – about C$ 280 less than Tuesday (31% 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$ 523 less than the most expensive month, which is December (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

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