App
Customer Support
NZD
Find Bookings
Trip.com
>
Cheap Flights
>
Canada
>
Ontario
>
Toronto
>
Flights from Seattle to Toronto
Worldwide Coverage
Worldwide Coverage
Flights to over 5,000 cities
One-stop Service Guarantee
One-stop Service Guarantee
Price guaranteed upon confirmed payment, booking guaranteed once tickets issued
Secure Payment
Secure Payment
Convenient & reliable booking and payment system

Flights from Seattle to Toronto Starting at NZD 143

We've found these cheap flights for you. You can book one-way or return flight tickets.

  • One way
  • Round-trip
      • Cheapest nonstop
        SEA07:18
        4h 37m
        Nonstop
        YYZ14:55
        Sat, Feb 22|Seattle - Toronto|Alaska Airlines
        NZD 143NZD 334
        56% OFF
        56% OFF
        NZD 334NZD 143

        Choose Alaska Airlines flights from Seattle to Toronto. The one-way direct flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Sat, Feb 22, arriving at Toronto Pearson International Airport. One-way Prices start from NZD 143 including taxes and charges.

      • SEA07:18
        4h 37m
        Nonstop
        YYZ14:55
        Tue, Feb 25|Seattle - Toronto|Alaska Airlines
        NZD 143NZD 334
        56% OFF
        56% OFF
        NZD 334NZD 143

        Choose Alaska Airlines flights from Seattle to Toronto. The one-way direct flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Tue, Feb 25, arriving at Toronto Pearson International Airport. One-way Prices start from NZD 143 including taxes and charges.

      • SEA07:27
        4h 38m
        Nonstop
        YYZ15:05
        Wed, Jan 15|Seattle - Toronto|Alaska Airlines
        NZD 147NZD 334
        56% OFF
        56% OFF
        NZD 334NZD 147

        Choose Alaska Airlines flights from Seattle to Toronto. The one-way direct flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Wed, Jan 15, arriving at Toronto Pearson International Airport. One-way Prices start from NZD 147 including taxes and charges.

      • SEA07:27
        4h 38m
        Nonstop
        YYZ15:05
        Sat, Jan 25|Seattle - Toronto|Alaska Airlines
        NZD 150
        NZD 150

        Choose Alaska Airlines flights from Seattle to Toronto. The one-way direct flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Sat, Jan 25, arriving at Toronto Pearson International Airport. One-way Prices start from NZD 150 including taxes and charges.

      • SEA07:18
        4h 37m
        Nonstop
        YYZ14:55
        Wed, Feb 19|Seattle - Toronto|Alaska Airlines
        NZD 150
        NZD 150

        Choose Alaska Airlines flights from Seattle to Toronto. The one-way direct flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Wed, Feb 19, arriving at Toronto Pearson International Airport. One-way Prices start from NZD 150 including taxes and charges.

      • SEA07:27
        4h 38m
        Nonstop
        YYZ15:05
        Sat, Feb 8|Seattle - Toronto|Alaska Airlines
        NZD 150
        NZD 150

        Choose Alaska Airlines flights from Seattle to Toronto. The one-way direct flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Sat, Feb 8, arriving at Toronto Pearson International Airport. One-way Prices start from NZD 150 including taxes and charges.

      • SEA07:18
        4h 37m
        Nonstop
        YYZ14:55
        Tue, Feb 18|Seattle - Toronto|Alaska Airlines
        NZD 151
        NZD 151

        Choose Alaska Airlines flights from Seattle to Toronto. The one-way direct flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Tue, Feb 18, arriving at Toronto Pearson International Airport. One-way Prices start from NZD 151 including taxes and charges.

      • SEA07:27
        4h 38m
        Nonstop
        YYZ15:05
        Tue, Feb 4|Seattle - Toronto|Alaska Airlines
        NZD 153
        NZD 153

        Choose Alaska Airlines flights from Seattle to Toronto. The one-way direct flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Tue, Feb 4, arriving at Toronto Pearson International Airport. One-way Prices start from NZD 153 including taxes and charges.

      • SEA07:27
        4h 38m
        Nonstop
        YYZ15:05
        Sun, Feb 9|Seattle - Toronto|Alaska Airlines
        NZD 155
        NZD 155

        Choose Alaska Airlines flights from Seattle to Toronto. The one-way direct flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Sun, Feb 9, arriving at Toronto Pearson International Airport. One-way Prices start from NZD 155 including taxes and charges.

      • SEA07:27
        4h 38m
        Nonstop
        YYZ15:05
        Sat, Feb 1|Seattle - Toronto|Alaska Airlines
        NZD 240
        NZD 240

        Choose Alaska Airlines flights from Seattle to Toronto. The one-way direct flight with Alaska Airlines departs from Seattle-Tacoma International Airport on Sat, Feb 1, arriving at Toronto Pearson International Airport. One-way Prices start from NZD 240 including taxes and charges.

      • SEA01:00 pm
        3h 5m
        Nonstop
        YTO02:00 pm
        Tue, Jan 21|Seattle - Toronto|Alaska Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Find the best time to fly from Seattle to Toronto

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Airlines Flying from Seattle to Toronto

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.
Alaska Airlines logoAlaska AirlinesWestJet logoWestJetFrontier Airlines logoFrontier AirlinesDelta Air Lines logoDelta Air Lines

Alternative Routes from Seattle to Toronto

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Seattle to Toronto.

  • Cheapest
    Alaska Airlines
    SEA
    07:18
    4h 37m
    Nonstop
    YYZ
    14:55
    Seattle-Tacoma International Airport - Toronto Pearson International Airport
    Tue, Feb 25Alaska Airlines
    NZD 143
  • Frontier Airlines
    SEA
    17:16
    23h 49m
    2 transfer
    YTZ
    20:05
    Seattle-Tacoma International Airport - Billy Bishop Toronto City Airport
    Mon, Feb 3Frontier Airlines
    NZD 165
  • WestJet
    SEA
    15:15
    12h 25m
    1 transfer
    YKF
    06:40
    Seattle-Tacoma International Airport - Region Of Waterloo International Airport
    Fri, Feb 28WestJet
    NZD 177
  • WestJet
    SEA
    15:15
    12h 25m
    1 transfer
    YKF
    06:40
    Seattle-Tacoma International Airport - Region Of Waterloo International Airport
    Fri, Feb 28WestJet
    NZD 177
    Find More Flights

FAQ

  • When are flight tickets from Seattle (SEA) to Toronto (YTO) the cheapest?

    Airlines adjust prices for flights from Seattle to Toronto based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Seattle (SEA) to Toronto (YTO) cost?

    According to Trip.com's data, the lowest price is around NZD 543.

  • How long does it take to fly from Seattle (SEA) to Toronto (YTO) and what is the distance?

    It takes around 5 hours 27 minutes to fly from Seattle (SEA) to Toronto (YTO).

  • What is the transportation method from the main airport to downtown in Toronto?

    • The distance from Toronto Pearson International Airport to downtown is about 20 km. It takes about 40 minutes by taxi.
    • The distance from Billy Bishop Toronto City Airport to downtown is about 2 km. It takes about 20 minutes by taxi.

  • What are the most popular airlines that fly from Seattle (SEA) to Toronto (YTO)?

    Airlines with flights from Seattle (SEA) to Toronto (YTO): Air Canada, United Airlines, Alaska Airlines, Hawaiian Airlines, Brussels Airlines and Qatar Airways.

How to find a cheap flight from Seattle to Toronto

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Seattle to Toronto. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Flight Information from Seattle to Toronto

Cheapest nonstop flight priceNZD 143
Cheapest round-trip ticket priceNZD 369
Off-season for travelDecember
Peak season for travelApril
Flight distance3,325.49 km
Average flight time5 hours 27 minutes
Popular airlineAlaska Airlines

Contact Us

About

Other Services

Payment Methods
Our Partners
Copyright © 2025 Trip.com Travel Singapore Pte. Ltd. All rights reserved
Site Operator: Trip.com Travel Singapore Pte. Ltd.