Flights from Toronto to Seattle (YYZ to SEA)

Discover more affordable routes and cheaper dates from Toronto to Seattle (YYZ to SEA) within a date range.

⭐ Search by country or region to discover more affordable routes, like Netherlands → Italy or Europe → South East Asia.

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  • CA$1678
    Alaska Airlines
    4:45pm - 7:04pm
    Thu May 22nd 2025
    5h 19m
    Toronto (YYZ) → Seattle (SEA)
    Direct
    Alaska Airlines
    7:23am - 3:00pm
    Sun May 25th 2025
    4h 37m
    Seattle (SEA) → Toronto (YYZ)
    Direct

    Thu May 22nd 2025 Alaska Airlines · AS 973 Depart at 4:45pm from Toronto (YYZ) Fly for 5h 19m Arrive at 7:04pm in Seattle (SEA)

    Stay in Seattle for 2 nights

    Sun May 25th 2025 Alaska Airlines · AS 972 Depart at 7:23am from Seattle (SEA) Fly for 4h 37m Arrive at 3:00pm in Toronto (YYZ)

  • CA$1818
    Alaska Airlines
    4:45pm - 7:04pm
    Thu May 22nd 2025
    5h 19m
    Toronto (YYZ) → Seattle (SEA)
    Direct
    Alaska AirlinesFlair Airlines
    7:55am - 7:40pm
    Sun May 25th 2025
    8h 45m
    Seattle (SEA) → Toronto (YYZ)
    1 Stop

    Thu May 22nd 2025 Alaska Airlines · AS 973 Depart at 4:45pm from Toronto (YYZ) Fly for 5h 19m Arrive at 7:04pm in Seattle (SEA)

    Stay in Seattle for 2 nights

    Sun May 25th 2025 Alaska Airlines · AS 3255 Depart at 7:55am from Seattle (SEA) Fly for 1h 47m Arrive at 10:42am in Edmonton (YEG)

    Layover in Edmonton for 3h 8m

    Sun May 25th 2025 Flair Airlines · F8 632 Depart at 1:50pm from Edmonton (YEG) Fly for 3h 50m Arrive at 7:40pm in Toronto (YYZ)

  • CA$2017
    Flair AirlinesAlaska Airlines
    7:40am - 2:46pm
    Thu May 22nd 2025
    10h 6m
    Toronto (YYZ) → Seattle (SEA)
    1 Stop
    Alaska AirlinesFlair Airlines
    8:41am - 8:35pm
    Sun May 25th 2025
    8h 54m
    Seattle (SEA) → Toronto (YYZ)
    1 Stop

    Thu May 22nd 2025 Flair Airlines · F8 601 Depart at 7:40am from Toronto (YYZ) Fly for 5h 10m Arrive at 9:50am in Vancouver (YVR)

    Layover in Vancouver for 3h 50m

    Thu May 22nd 2025 Alaska Airlines · AS 554 Depart at 1:40pm from Vancouver (YVR) Fly for 1h 6m Arrive at 2:46pm in Seattle (SEA)

    Stay in Seattle for 2 nights

    Sun May 25th 2025 Alaska Airlines · AS 2182 Depart at 8:41am from Seattle (SEA) Fly for 0h 57m Arrive at 9:38am in Vancouver (YVR)

    Layover in Vancouver for 3h 17m

    Sun May 25th 2025 Flair Airlines · F8 604 Depart at 12:55pm from Vancouver (YVR) Fly for 4h 40m Arrive at 8:35pm in Toronto (YYZ)

@sarahbb1
Sarah Belizaire
@sarahbb1

Have flexible travel plans or looking for alternative routes given the chaos? Check out all the connection possibilities via a super helpful site created by @ismaelyws flightlist.io thanks to @andy_travels for the recommendation #travel #flights

@eyupitsjohn
John Ford
@eyupitsjohn

There seem to be lots of sites launching at the moment that promise to find you cheap flights but not many have the professional finish of Flightlist by @ismaelyws #travel #flights

@oamingsonaa
Roaming Sonaa
@roamingsonaa

For people wanting to maximize their trips, Flightlist is my newest travel hack for uncovering the coolest routes at irresistible prices. No stress, no annoying ads — just seamless flight booking with amazing functionality.

@andy_travels
Andy Travels
@andy_travels

@ismaelyws Just tried out Flightlist for the first time. Really nice idea, well made, and just what I need at the moment 👍

@travelwitbender
Travel With Bender
@travelwitbender

Did you spot my recent article about how to score cheap one way flights? ✈️ FlightList is my new secret tool for discovering cheap routes, within a departure date range. Plus you can also search by country/region for departures & destinations. Powerful! 💪

@travel.with.wes
Wesley Mergard
@travel.with.wes

One useful tool I've found for evaluating different departure and return dates is called FlightList.io. You can quickly scan different travel date ranges, carriers and one way flight options to easily determine the cheapest flight combinations for your trip.

Explore Flight Options

FlightList Blog

Flightlist Interviews 7 Travel Experts On Why They Book One Way Flights
Flightlist Interviews 7 Travel Experts On Why They Book One Way Flights
Why I built FlightList & solved my own problem
Why I Built FlightList & Solved My Own Problem

About FlightList

❝Founded by a remote worker and frequent flyer, who discovered that the best deals come from searching with flexible dates across entire countries or regions. Our streamlined platform strips away the clutter found on typical travel sites, offering a clean interface that focuses solely on finding cost-effective flights. Unlike traditional booking sites, FlightList allows users to search by date ranges and broad destinations, unveiling opportunities that rigid parameters often miss. Our filters let travelers tailor searches to their specific needs, whether they're digital nomads seeking their next adventure or budget-conscious explorers maximizing travel funds. We've made finding cheap flights into a quicker and easier experience, empowering users to discover just how far their budget can take them.❞

Hans Desjarlais, Founder Hans Desjarlais Profile Picture