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Cheap flights from Ontario to Seattle from C$ 208

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Seattle departing on 9/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Find the cheapest flights from Ontario to Seattle

Cheap round-trip flights

These are some of the best round-trip flight deals from Ontario to Seattle that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Ontario to Seattle.

Cheap last-minute flights

Planning a quick getaway from Ontario to Seattle? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Seattle, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Ontario to Seattle

Find recent round-trip train or bus tickets from Ontario to Seattle.

All round-trip flight deals to Seattle

The cheapest plane tickets to Seattle found on KAYAK recently.
4:20 p.m. - 6:43 p.m.YYZ-SEA
5h 23mdirect
7:27 a.m. - 3:05 p.m.SEA-YYZ
4h 38mdirect
C$ 349Alaska Airlines
Find Deal
Fri, 17 Jan - Mon, 20 Jan
8:00 a.m. - 2:30 p.m.YYZ-SEA
9h 30m1 stop
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
C$ 356Air Canada
Find Deal
Wed, 15 Jan - Fri, 24 Jan
7:45 p.m. - 10:10 p.m.YYZ-SEA
5h 25mdirect
11:51 p.m. - 1:42 p.m.SEA-YYZ
10h 51m1 stop
C$ 362United Airlines
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Thu, 12 Dec - Mon, 6 Jan
8:00 a.m. - 2:30 p.m.YYZ-SEA
9h 30m1 stop
3:05 p.m. - 12:57 a.m.SEA-YYZ
6h 52m1 stop
C$ 363Air Canada
Find Deal
Wed, 15 Jan - Tue, 21 Jan
4:20 p.m. - 6:39 p.m.YYZ-SEA
5h 19mdirect
7:27 a.m. - 3:05 p.m.SEA-YYZ
4h 38mdirect
C$ 365Alaska Airlines
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Fri, 13 Dec - Fri, 10 Jan
5:15 p.m. - 10:55 p.m.YYZ-SEA
8h 40m1 stop
11:05 p.m. - 9:20 a.m.SEA-YYZ
7h 15m1 stop
C$ 369Delta
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Sun, 19 Jan - Tue, 21 Jan
6:30 a.m. - 3:45 p.m.YYZ-SEA
12h 15m1 stop
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
C$ 370United Airlines
Find Deal
Sun, 19 Jan - Tue, 21 Jan
6:00 a.m. - 10:45 a.m.YYZ-SEA
7h 45m1 stop
11:05 p.m. - 9:20 a.m.SEA-YYZ
7h 15m1 stop
C$ 375Delta
Find Deal
Thu, 9 Jan - Sun, 12 Jan
7:12 p.m. - 12:41 p.m.YYZ-SEA
20h 29m1 stop
5:22 a.m. - 4:15 p.m.SEA-YYZ
7h 53m1 stop
C$ 390American Airlines
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Thu, 9 Jan - Thu, 16 Jan
4:05 p.m. - 10:21 p.m.YYZ-SEA
9h 16m1 stop
10:56 p.m. - 10:19 a.m.SEA-YYZ
8h 23m1 stop
C$ 400American Airlines
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Wed, 11 Dec - Tue, 31 Dec
4:20 p.m. - 6:39 p.m.YYZ-SEA
5h 19mdirect
C$ 208Alaska Airlines
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Mon, 9 Dec
8:00 p.m. - 8:57 a.m.YYZ-SEA
15h 57m1 stop
C$ 211
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Wed, 11 Dec
8:00 a.m. - 2:30 p.m.YYZ-SEA
9h 30m1 stop
C$ 216Air Canada
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Wed, 8 Jan
7:55 a.m. - 2:21 p.m.YYZ-SEA
9h 26m1 stop
C$ 218WestJet
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Wed, 5 Mar
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
C$ 224Air Canada
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Thu, 30 Jan
5:04 p.m. - 9:55 p.m.YYZ-SEA
7h 51m1 stop
C$ 225Delta
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Fri, 13 Dec
7:55 a.m. - 2:21 p.m.YYZ-SEA
9h 26m1 stop
C$ 228WestJet
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Mon, 17 Mar
8:05 a.m. - 9:09 p.m.YYZ-SEA
16h 04m1 stop
C$ 230United Airlines
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Sat, 14 Dec
11:00 a.m. - 9:20 p.m.YYZ-SEA
13h 20m3 stops
C$ 231United Airlines
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Thu, 30 Jan
5:55 p.m. - 10:25 p.m.YYZ-SEA
7h 30m1 stop
C$ 355Delta
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Tue, 15 Apr
7:40 a.m. - 2:21 p.m.YYZ-SEA
9h 41m1 stop
3:15 p.m. - 6:00 a.m.SEA-YYZ
11h 45m2 stops
C$ 578WestJet
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Wed, 20 Nov - Wed, 11 Dec
7:40 a.m. - 2:21 p.m.YYZ-SEA
9h 41m1 stop
3:15 p.m. - 6:19 a.m.SEA-YYZ
12h 04m1 stop
C$ 668WestJet
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Wed, 20 Nov - Wed, 11 Dec
8:00 p.m. - 8:08 p.m.YYZ-SEA
27h 08m2 stops
5:28 p.m. - 9:47 p.m.SEA-YYZ
25h 19m1 stop
C$ 727
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Sat, 23 Nov - Mon, 25 Nov
7:40 a.m. - 2:21 p.m.YYZ-SEA
9h 41m1 stop
7:26 a.m. - 3:07 p.m.SEA-YYZ
4h 41mdirect
C$ 734
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Wed, 20 Nov - Mon, 30 Dec
4:20 p.m. - 6:40 p.m.YYZ-SEA
5h 20mdirect
7:22 a.m. - 2:55 p.m.SEA-YYZ
4h 33mdirect
C$ 814Alaska Airlines
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Wed, 20 Nov - Wed, 11 Dec
2:55 p.m. - 9:00 p.m.YYZ-SEA
9h 05m1 stop
7:45 p.m. - 6:15 a.m.SEA-YYZ
7h 30m1 stop
C$ 835Delta
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Wed, 20 Nov - Mon, 30 Dec
6:30 a.m. - 12:46 p.m.YYZ-SEA
9h 16m1 stop
7:45 p.m. - 6:15 a.m.SEA-YYZ
7h 30m1 stop
C$ 845Delta
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Tue, 19 Nov - Mon, 30 Dec
7:15 p.m. - 9:40 p.m.YYZ-SEA
5h 25mdirect
7:15 p.m. - 6:52 a.m.SEA-YYZ
8h 37m1 stop
C$ 851Air Canada
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Tue, 19 Nov - Mon, 30 Dec
8:30 a.m. - 2:25 p.m.YYZ-SEA
8h 55m1 stop
7:15 p.m. - 6:32 a.m.SEA-YYZ
8h 17m1 stop
C$ 858Air Canada
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Sat, 23 Nov - Mon, 30 Dec
6:14 a.m. - 3:16 p.m.YYZ-SEA
12h 02m1 stop
7:22 a.m. - 2:55 p.m.SEA-YYZ
4h 33mdirect
C$ 949Alaska Airlines
Find Deal
Wed, 20 Nov - Wed, 11 Dec
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
C$ 335Air Canada
Find Deal
Fri, 17 Jan - Mon, 20 Jan
4:20 p.m. - 6:43 p.m.YYZ-SEA
5h 23mdirect
7:27 a.m. - 3:05 p.m.SEA-YYZ
4h 38mdirect
C$ 349Alaska Airlines
Find Deal
Fri, 17 Jan - Mon, 20 Jan
4:20 p.m. - 6:39 p.m.YYZ-SEA
5h 19mdirect
7:27 a.m. - 3:05 p.m.SEA-YYZ
4h 38mdirect
C$ 365Alaska Airlines
Find Deal
Fri, 13 Dec - Thu, 9 Jan
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
C$ 372Air Canada
Find Deal
Thu, 9 Jan - Thu, 16 Jan
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
C$ 373Air Canada
Find Deal
Thu, 9 Jan - Thu, 16 Jan
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
C$ 375Air Canada
Find Deal
Thu, 9 Jan - Thu, 16 Jan
7:05 p.m. - 9:30 p.m.YYZ-SEA
5h 25mdirect
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
C$ 379Air Canada
Find Deal
Fri, 7 Mar - Tue, 11 Mar
4:20 p.m. - 6:39 p.m.YYZ-SEA
5h 19mdirect
7:26 a.m. - 3:07 p.m.SEA-YYZ
4h 41mdirect
C$ 382Alaska Airlines
Find Deal
Wed, 11 Dec - Tue, 31 Dec
7:15 p.m. - 9:40 p.m.YYZ-SEA
5h 25mdirect
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
C$ 842United Airlines
Find Deal
Tue, 17 Dec - Tue, 24 Dec
7:15 p.m. - 9:40 p.m.YYZ-SEA
5h 25mdirect
6:05 a.m. - 1:50 p.m.SEA-YYZ
4h 45mdirect
C$ 871United Airlines
Find Deal
Mon, 16 Dec - Mon, 23 Dec

Alaska Airlines flights from Region of Ontario to Seattle

Our best Alaska Airlines deals on Region of Ontario to Seattle flight tickets
Alaska Airlines
17 Jan
YYZ4:20 p.m.Toronto Pearson Intl
5h 23m
SEA6:43 p.m.Seattle/Tacoma Intl
20 Jan
SEA7:27 a.m.Seattle/Tacoma Intl
4h 38m
YYZ3:05 p.m.Toronto Pearson Intl
Alaska Airlines
13 Dec
YYZ4:20 p.m.Toronto Pearson Intl
5h 19m
SEA6:39 p.m.Seattle/Tacoma Intl
10 Jan
SEA7:27 a.m.Seattle/Tacoma Intl
4h 38m
YYZ3:05 p.m.Toronto Pearson Intl
Alaska Airlines
11 Dec
YYZ4:20 p.m.Toronto Pearson Intl
5h 19m
SEA6:39 p.m.Seattle/Tacoma Intl
31 Dec
SEA7:26 a.m.Seattle/Tacoma Intl
4h 41m
YYZ3:07 p.m.Toronto Pearson Intl

United Airlines flights from Region of Ontario to Seattle

Our best United Airlines deals on Region of Ontario to Seattle flight tickets
United Airlines
12 Dec
YYZ7:45 p.m.Toronto Pearson Intl
5h 25m
SEA10:10 p.m.Seattle/Tacoma Intl
6 Jan
SEA11:51 p.m.Seattle/Tacoma Intl
10h 51m
1 stop
YYZ1:42 p.m.Toronto Pearson Intl
United Airlines
19 Jan
YYZ6:30 a.m.Toronto Pearson Intl
12h 15m
1 stop
SEA3:45 p.m.Seattle/Tacoma Intl
21 Jan
SEA6:05 a.m.Seattle/Tacoma Intl
4h 45m
YYZ1:50 p.m.Toronto Pearson Intl
United Airlines
19 Jan
YYZ2:45 p.m.Toronto Pearson Intl
8h 46m
1 stop
SEA8:31 p.m.Seattle/Tacoma Intl
19 Jan
SEA11:59 p.m.Seattle/Tacoma Intl
10h 43m
1 stop
YYZ1:42 p.m.Toronto Pearson Intl

How to get the cheapest flight ticket from Region of Ontario to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies to Seattle from Region of Ontario?

Alaska Airlines. Alaska Airlines, WestJet, and Air Canada are the most popular carriers operating from Region of Ontario to Seattle

What is the cheapest Region of Ontario to Seattle flight route?

Toronto Pearson Intl - Seattle/Tacoma Intl. Fly from Toronto Pearson Intl to Seattle/Tacoma Intl for the best Region of Ontario - Seattle flight prices

How many flights depart from Region of Ontario to Seattle on average per day?

The number of flights available between Region of Ontario and Seattle is 2 per day as of November 2024. The most frequent departure time is 7:00p.m., with 54% of daily flights leaving in the evening.

Can stopping save me money on Region of Ontario to Seattle flights?

No. A direct flight is the cheapest option for a flight between Region of Ontario to Seattle.

Cheap Region of Ontario to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Region of Ontario to Seattle

Best price found

C$ 208

Fastest flight time

5h 19m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Region of Ontario in the past 72 hours is C$ 208. The best round-trip flight deal from Region of Ontario to Seattle found on momondo in the last 72 hours is C$ 349.
The fastest flight from Region of Ontario to Seattle takes 5h 19m
Direct flights go from Region of Ontario to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

  • When did momondo last update prices for flights from Ontario to Seattle/Tacoma Intl Airport?

    Prices for flights from Ontario to Seattle/Tacoma Intl Airport are updated daily.

  • How many operators does momondo search for flights from Ontario to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Ontario to Seattle/Tacoma Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Region of Ontario to Seattle?


Best airlines flying from Region of Ontario to Seattle

Compare and see reviews for airlines that fly from Region of Ontario to Seattle with momondo
Airline
Rating
Free Cancellation
Price
WestJetPriceFrom C$ 301Free CancellationRating
7.3
2,808 reviews
Search WestJet flights
Alaska AirlinesPriceFrom C$ 366Free CancellationRating
8.0
9,451 reviews
Search Alaska Airlines flights
Air CanadaPriceFrom C$ 368Free CancellationRating
7.0
8,230 reviews
Search Air Canada flights
United AirlinesPriceFrom C$ 398Free CancellationRating
7.4
9,168 reviews
Search United Airlines flights
DeltaPriceFrom C$ 413Free CancellationRating
8.0
8,766 reviews
Search Delta flights
American AirlinesPriceFrom C$ 549Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Seattle?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to Seattle for you.

Can I find flights from Ontario to Seattle with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Seattle from Ontario with this policy.

How can momondo help me find flights from Ontario to Seattle?

Once you have performed a search for Ontario to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ontario to Seattle right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ontario to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.


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