SEA - YOW

$117 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
$287
Typical prices: $415-$704
WestJet
Tue 10/16Mon 10/22
SEA - YOW • 1 stop
Cheapest one-way
$117
Typical prices: $175-$552
WestJet
Sat 10/20
SEA - YOW • 1 stop
Nonstop 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 $526 (round-trip)
Vancouver Intl (YVR)
Shortest trip • 8h 06m (one-way)
Insights
Insights
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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

Fri, Oct 16 - Thu, Oct 22
WestJet Logo
7:35 pm - 5:35 amSEA  Seattle/Tacoma Intl-YOW Ottawa
7h 00m1 stop Calgary
WestJet Logo
1:20 pm - 6:45 pmYOW  Ottawa-SEA Seattle/Tacoma Intl
8h 25m1 stop Calgary
$287WestJet
Wed, Oct 7 - Wed, Oct 14
WestJet Logo
7:35 pm - 5:35 amSEA  Seattle/Tacoma Intl-YOW Ottawa
7h 00m1 stop Calgary
WestJet Logo
8:15 pm - 9:40 amYOW  Ottawa-SEA Seattle/Tacoma Intl
16h 25m1 stop Calgary
$297WestJet
Wed, Oct 7 - Sun, Oct 11
WestJet Logo
7:35 pm - 5:35 amSEA  Seattle/Tacoma Intl-YOW Ottawa
7h 00m1 stop Calgary
WestJet Logo
4:15 pm - 9:40 amYOW  Ottawa-SEA Seattle/Tacoma Intl
20h 25m1 stop Calgary
$298WestJet
Sat, Oct 17 - Sat, Oct 24
Multiple Airlines Logo
8:02 am - 5:35 amSEA  Seattle/Tacoma Intl-YOW Ottawa
18h 33m1 stop Calgary
Multiple Airlines Logo
6:55 am - 6:45 pmYOW  Ottawa-SEA Seattle/Tacoma Intl
14h 50m2 stops Toronto Pearson Intl Calgary
$346Multiple Airlines
Sat, Oct 17 - Sat, Oct 24
Multiple Airlines Logo
8:02 am - 12:25 amSEA  Seattle/Tacoma Intl-YOW Ottawa
13h 23m2 stops Calgary Toronto Pearson Intl
Multiple Airlines Logo
6:55 am - 6:45 pmYOW  Ottawa-SEA Seattle/Tacoma Intl
14h 50m2 stops Toronto Pearson Intl Calgary
$355Multiple Airlines
Tue, Oct 20 - Tue, Oct 27
Multiple Airlines Logo
7:35 pm - 5:35 amSEA  Seattle/Tacoma Intl-YOW Ottawa
7h 00m1 stop Calgary
Multiple Airlines Logo
6:10 am - 4:26 pmYOW  Ottawa-SEA Seattle/Tacoma Intl
13h 16m2 stops Calgary Vancouver Intl
$388Multiple Airlines
Sat, Oct 24 - Sat, Oct 31
Air Canada Logo
5:50 am - 4:23 pmSEA  Seattle/Tacoma Intl-YOW Ottawa
7h 33m1 stop Vancouver Intl
Air Canada Logo
7:45 am - 2:37 pmYOW  Ottawa-SEA Seattle/Tacoma Intl
9h 52m1 stop Vancouver Intl
$482Air Canada
Tue, Oct 27 - Thu, Oct 29
Air Canada Logo
8:40 am - 11:11 pmSEA  Seattle/Tacoma Intl-YOW Ottawa
11h 31m2 stops Vancouver Intl Calgary
Air Canada Logo
7:45 am - 2:37 pmYOW  Ottawa-SEA Seattle/Tacoma Intl
9h 52m1 stop Vancouver Intl
$487Air Canada
Fri, Oct 30 - Fri, Nov 6
United Airlines Logo
7:00 am - 9:16 pmSEA  Seattle/Tacoma Intl-YOW Ottawa
11h 16m1 stop Chicago O'Hare Intl
United Airlines Logo
3:10 pm - 9:39 pmYOW  Ottawa-SEA Seattle/Tacoma Intl
9h 29m1 stop Newark
$496United Airlines
Fri, Nov 13 - Tue, Nov 17
United Airlines Logo
7:04 pm - 1:11 pmSEA  Seattle/Tacoma Intl-YOW Ottawa
15h 07m2 stops Denver Intl Newark
United Airlines Logo
6:15 am - 6:26 pmYOW  Ottawa-SEA Seattle/Tacoma Intl
15h 11m2 stops Chicago O'Hare Intl San Francisco
$512United Airlines
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 $287. Prices are below average for this route right now, with typical round-trip fares ranging from $415 to $704. The lowest price found in the past 5 days was $287 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, it 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.

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Key details for Seattle to Ottawa flights

Low season

March

Cheapest flight

$117
Most popular time to fly with an average 16% increase in price.
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 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).

  • What 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 $453 round-trip on average, while Tuesday is the most expensive at $653, a difference of $200. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Ottawa?

    Some of the most popular sights in Ottawa are Garden of the Provinces and Territories, Nepean Sportsplex and National Arts Centre. These are among the most viewed places in Ottawa on KAYAK.

  • How long is a flight from Seattle to Ottawa?

    A nonstop flight from Seattle to Ottawa takes 0h 00m, covering 2,193 miles.

  • 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 $287 to $1,555. 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 lower than usual. Average one-way flight prices are about $180, which is 37% below the typical average for this route.

  • How much time can I save by choosing a different layover airport 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 $13 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 $415 to $704, with an average of $545 over the past 12 months. Anything below $415 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 can be flexible, aim for a Thursday departure instead of Tuesday. On this route, Thursday flights average $453 - about $200 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 $354 round-trip in that month - typically $374 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