Flight Routes from Toronto to Seattle Tacoma

Compare cheap outbound and return flights from Toronto (YYZ) to Seattle-Tacoma (SEA) and find the best offer from numerous airlines and travel agencies.

Trip type
Cheapest roundtrip flight
from€510
Fastest outbound flight
Fastest inbound flight
non-stop flights
8x / week
Flight distance
3,311 km
Time difference

Cheap flight offers from Toronto to Seattle

sorted by price and recency
  1. –
    United Airlines
    –
    YYZ–SEA
    1 stopover
    Westjet
    –
    SEA–YYZ
    2 stopovers
    €514
  2. –
    Westjet
    –
    YYZ–SEA
    2 stopovers
    Westjet
    –
    SEA–YYZ
    2 stopovers
    €510
  3. –
    United Airlines
    –
    YYZ–SEA
    1 stopover
    Alaska Airlines
    –
    SEA–YYZ
    1 stopover
    €628
  4. –
    Westjet
    –
    YYZ–SEA
    1 stopover
    Westjet
    –
    SEA–YYZ
    1 stopover
    €615
  5. –
    Air Canada
    –
    YYZ–SEA
    2 stopovers
    Westjet
    –
    SEA–YYZ
    2 stopovers
    €592
  6. –
    Westjet
    –
    YYZ–SEA
    1 stopover
    Westjet
    –
    SEA–YYZ
    2 stopovers
    €586

Flight schedule from Toronto (YYZ) to Seattle-Tacoma (SEA)

Select a travel date in the flight schedule for the route from Toronto (YYZ) to Seattle-Tacoma (SEA) and compare affordable flight deals.

offers
Active filtersnone
Matching outbound flightsYYZ–SEA · 5 of 5
fromto
dep.arr.
durationstopovers
  1. November 8 – 14, 2026
  2. November 15 – 21, 2026
  3. November 22 – 28, 2026
    1. YYZSEA
      nonstop
      1. United Airlines
    2. YYZSEA
      nonstop
      1. Alaska Airlines
    3. YYZSEA
      nonstop
      1. Alaska Airlines
    4. YYZSEA
      nonstop
      1. Alaska Airlines
    5. YYZSEA
      nonstop
      1. Air Canada

      Important flight information

      Discover more flights around Toronto and Seattle-Tacoma

      Departure airport Airport Toronto - Lester B. Pearson International Airport (YYZ)
      Departure country Flights from Canada
      Arrival airport Airport Seattle-Tacoma International Airport, WA (SEA)
      Destination country Flights to United States
      Departure country - Arrival airport Canada - Seattle-Tacoma International Airport, WA
      City-Code - Arrival airport Toronto - Seattle-Tacoma International Airport, WA
      Departure airport - Destination country Toronto - Lester B. Pearson International Airport - United States