Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Seattle to Toronto from $89

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Toronto departing on 3/14. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Seattle to Toronto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:00 am - 3:43 pm
SEA
-
YYZ
4h 43mnonstop
Multiple Airlines Logo
4:45 pm - 7:15 pm
YYZ
-
SEA
5h 30mnonstop
$227Multiple Airlines
Wed, Mar 18 - Wed, Mar 25
Alaska Airlines Logo
7:55 am - 3:35 pm
SEA
-
YYZ
4h 40mnonstop
Alaska Airlines Logo
4:45 pm - 7:18 pm
YYZ
-
SEA
5h 33mnonstop
$232Alaska Airlines
Tue, Feb 24 - Sat, Feb 28
Air Canada Logo
8:00 am - 3:43 pm
SEA
-
YYZ
4h 43mnonstop
Air Canada Logo
5:55 pm - 10:57 pm
YYZ
-
SEA
8h 02m
1 stop
$233Air Canada
Tue, Feb 24 - Tue, Feb 24
Multiple Airlines Logo
7:35 pm - 5:45 am
SEA
-
YYZ
7h 10m
1 stop
Multiple Airlines Logo
4:55 pm - 7:23 pm
YYZ
-
SEA
5h 28mnonstop
$240Multiple Airlines
Sat, May 9 - Tue, May 12
Alaska Airlines Logo
7:55 am - 3:35 pm
SEA
-
YYZ
4h 40mnonstop
Alaska Airlines Logo
4:45 pm - 7:18 pm
YYZ
-
SEA
5h 33mnonstop
$242Alaska Airlines
Tue, Feb 24 - Mon, Mar 2
Air Canada Logo
8:00 am - 3:43 pm
SEA
-
YYZ
4h 43mnonstop
Air Canada Logo
7:00 am - 3:01 pm
YYZ
-
SEA
11h 01m
1 stop
$243Air Canada
Wed, Mar 18 - Wed, Mar 25
WestJet Logo
3:10 pm - 5:58 am
SEA
-
YYZ
11h 48m
2 stops
WestJet Logo
7:45 am - 2:19 pm
YYZ
-
SEA
9h 34m
1 stop
$244WestJet
Wed, Mar 11 - Tue, Mar 17
WestJet Logo
3:20 pm - 5:58 am
SEA
-
YYZ
11h 38m
2 stops
WestJet Logo
7:45 am - 2:19 pm
YYZ
-
SEA
9h 34m
1 stop
$245WestJet
Sat, Apr 11 - Sun, Apr 19
Air Canada Logo
8:00 am - 3:43 pm
SEA
-
YYZ
4h 43mnonstop
Air Canada Logo
7:00 am - 7:16 pm
YYZ
-
SEA
15h 16m
1 stop
$246Air Canada
Sat, Mar 14 - Sun, Mar 22
Multiple Airlines Logo
7:55 am - 3:35 pm
SEA
-
YYZ
4h 40mnonstop
Multiple Airlines Logo
7:45 am - 2:19 pm
YYZ
-
SEA
9h 34m
1 stop
$247Multiple Airlines
Tue, Mar 3 - Tue, Mar 17

Air Canada flights from Seattle to Toronto

Our best Air Canada deals on Seattle to Toronto flight tickets
Air Canada
Feb 24
SEA8:00 amSeattle/Tacoma Intl
4h 43m
YYZ3:43 pmToronto Pearson Intl
Feb 24
YYZ5:55 pmToronto Pearson Intl
8h 02m
1 stop
SEA10:57 pmSeattle/Tacoma Intl
$233
Air Canada
Mar 18
SEA8:00 amSeattle/Tacoma Intl
4h 43m
YYZ3:43 pmToronto Pearson Intl
Mar 25
YYZ7:00 amToronto Pearson Intl
11h 01m
1 stop
SEA3:01 pmSeattle/Tacoma Intl
$243
Air Canada
Mar 14
SEA8:00 amSeattle/Tacoma Intl
4h 43m
YYZ3:43 pmToronto Pearson Intl
Mar 22
YYZ7:00 amToronto Pearson Intl
15h 16m
1 stop
SEA7:16 pmSeattle/Tacoma Intl
$246

WestJet flights from Seattle to Toronto

Our best WestJet deals on Seattle to Toronto flight tickets
WestJet
Mar 11
SEA3:10 pmSeattle/Tacoma Intl
11h 48m
2 stops
YYZ5:58 amToronto Pearson Intl
Mar 17
YYZ7:45 amToronto Pearson Intl
9h 34m
1 stop
SEA2:19 pmSeattle/Tacoma Intl
$244
WestJet
Apr 11
SEA3:20 pmSeattle/Tacoma Intl
11h 38m
2 stops
YYZ5:58 amToronto Pearson Intl
Apr 19
YYZ7:45 amToronto Pearson Intl
9h 34m
1 stop
SEA2:19 pmSeattle/Tacoma Intl
$245
WestJet
Jun 4
SEA7:35 pmSeattle/Tacoma Intl
7h 10m
1 stop
YYZ5:45 amToronto Pearson Intl
Jun 8
YYZ12:00 pmToronto Pearson Intl
9h 45m
2 stops
SEA6:45 pmSeattle/Tacoma Intl
$252

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Toronto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 3, 2026.
Use the filters below to find and compare flights from Seattle to Toronto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 3/18

8:00 am-3:43 pm

Nonstop4h 43m

Toronto Pearson Intl

Wed 3/25

4:45 pm-7:15 pm

Nonstop5h 30m

$227

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 2/24

7:55 am-3:35 pm

Nonstop4h 40m

Toronto Pearson Intl

Sat 2/28

4:45 pm-7:18 pm

Nonstop5h 33m

$232

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 2/24

8:00 am-3:43 pm

Nonstop4h 43m

Toronto Pearson Intl

Tue 2/24

5:55 pm-10:57 pm

1 stop8h 02m

$233

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sat 5/9

7:35 pm-5:45 am

1 stop7h 10m

Toronto Pearson Intl

Tue 5/12

4:55 pm-7:23 pm

Nonstop5h 28m

$240

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 2/24

7:55 am-3:35 pm

Nonstop4h 40m

Toronto Pearson Intl

Mon 3/2

4:45 pm-7:18 pm

Nonstop5h 33m

$242

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 3/18

8:00 am-3:43 pm

Nonstop4h 43m

Toronto Pearson Intl

Wed 3/25

7:00 am-3:01 pm

1 stop11h 01m

$243

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Wed 3/11

3:10 pm-5:58 am

2 stops11h 48m

Toronto Pearson Intl

Tue 3/17

7:45 am-2:19 pm

1 stop9h 34m

$244

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sat 4/11

3:20 pm-5:58 am

2 stops11h 38m

Toronto Pearson Intl

Sun 4/19

7:45 am-2:19 pm

1 stop9h 34m

$245

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Sat 3/14

8:00 am-3:43 pm

Nonstop4h 43m

Toronto Pearson Intl

Sun 3/22

7:00 am-7:16 pm

1 stop15h 16m

$246

SeattleToronto

SEA - YYZ

SEAYYZ

Seattle/Tacoma Intl

Tue 3/3

7:55 am-3:35 pm

Nonstop4h 40m

Toronto Pearson Intl

Tue 3/17

7:45 am-2:19 pm

1 stop9h 34m

$247

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Toronto from

How to get the cheapest flight ticket from Seattle to Toronto

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 month to fly to Toronto?

The month of January is, on average, the cheapest month to fly to Toronto from Seattle, with most prices found around $269. If you are unable to visit Toronto during the month of January, then departing from Seattle during the month November is also very affordable. Most momondo users find prices during this month for around $274.

What is the cheapest day to depart on your flight to Toronto?

On average, the least expensive day to fly to Toronto from Seattle is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $514. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Toronto is Saturday, with ticket prices averaging around $693.

What is the cheapest Seattle/Tacoma Intl to Toronto flight route?

Fly from Seattle/Tacoma Intl to Toronto Pearson Intl for the best Seattle/Tacoma Intl - Toronto flight prices

How far in advance should I book a flight to Toronto?

You are more likely to see cheaper flights to Toronto from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Toronto for around $389 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Toronto from Seattle for as low as $204 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Toronto flights?

There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Toronto flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Toronto flights?

No. A direct flight is the cheapest option for a flight between Seattle to Toronto.

How have Seattle to Toronto flight prices changed over time?

As of February 2026, prices for Seattle to Toronto flights are approximately 1% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Toronto

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Toronto according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Toronto (SEA to YTO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Toronto

Best Price Found

$121

Fastest flight time

4h 43m

Direct flights

Every day

Airports in Toronto

3 airports
The best one-way flight to Toronto from Seattle in the past 72 hours is $121. The best round-trip flight deal from Seattle to Toronto found on momondo in the last 72 hours is $338.
The fastest flight from Seattle to Toronto takes 4h 43m
Direct flights go from Seattle to Toronto every day.
There are 3 airports in Toronto. From Seattle there are direct flights to Toronto Pearson Intl (YYZ).
Search flight deals

  • How far is Seattle/Tacoma Intl to Toronto by plane?

    Seattle/Tacoma Intl and Toronto are 2065.1 mi apart from one another. By plane, this route typically takes 4h 43m.

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

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Toronto.

  • What documentation or ID do you need to fly to Toronto?

    The travel and health documents you'll need for your trip to Toronto 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 Toronto. 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 Seattle to Toronto?

  • What is the most popular airline from Seattle to Toronto?

Best airlines flying from Seattle to Toronto

Compare and see reviews for airlines that fly from Seattle to Toronto with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $132Free CancellationRating
7.1
10,676 reviews
Search Air Canada flights
United AirlinesPriceFrom $160Free CancellationRating
7.4
9,231 reviews
Search United Airlines flights
DeltaPriceFrom $165Free CancellationRating
7.9
8,132 reviews
Search Delta flights
WestJetPriceFrom $226Free CancellationRating
7.2
3,254 reviews
Search WestJet flights
Alaska AirlinesPriceFrom $253Free CancellationRating
8.0
11,830 reviews
Search Alaska Airlines flights

  • Alaska Airlines Flights From Seattle to Toronto

    Alaska Airlines flight deals from Seattle to Toronto start from $253 round-trip. Over the 5 Alaska Airlines flights for this route in a normal week, average airfare is usually $434 round-trip - but some users have found much cheaper deals with momondo.

  • United Airlines Flights From Seattle to Toronto

    United Airlines is also a popular choice for this route. United Airlines flight deals for Seattle to Toronto start from as low as $160 round-trip, depending on your selected dates, with average United Airlines deals seen on momondo around $380. United Airlines operates 7 flights to Toronto from Seattle in an average week. Users have rated it 7.4/10 across 9,236 reviews.

Why use momondo?

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

It is quick and easy to find Seattle to Toronto flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Toronto that suits you.

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

momondo does allow users to show only those flights to Toronto from Seattle which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Toronto.

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

Yes. momondo can track prices for Seattle to Toronto flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Toronto trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 3/5
Thu 3/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Canada

Fly into one of these airports located in Toronto

Airports listed have a maximum distance of 52.0 mi from Toronto
Toronto Region of Waterloo Intl Airport
Toronto Island Airport
Toronto Pearson Intl Airport