Cheap flights from Toronto to Seattle (YYZ–SEA)
YYZToronto Pearson International Airport
Canada
Canada
SEASeattle–Tacoma International Airport
United States
United States
Air Canada and Alaska Airlines fly Toronto to Seattle (YYZ–SEA) nonstop and back, a great-circle distance of 3,310 km (2,050 mi).
- From
- YYZ
- Toronto
- To
- SEA
- Seattle
- Nonstop
- Yes · 2 airlines
- Airlines
- AC · AS
- Cheapest fare found
- C$310 one-way
- Distance
- 3,310 km (2,050 mi)
- Time difference
- Seattle 3 hours behind
- Most flights
- Air Canada
- Time in the air
- 4h 44m · 3h 56m back
- On time (Touchdown Index)
- 83.1%
- Flights a week
- AC ~4 · AS ~4
- Aircraft seen
- Airbus A220-300 · Boeing 737-900 · Boeing 737 Max 9
Network data imported from airport and airline sources:· How we verify
Toronto to Seattle fares by month
Cheapest one-way fare found: C$310 for November 2026 on WestJet (1 stop).
- Oct ’26C$432
- Nov ’26C$310
Cheapest one-way fares per month of departure in the Aviasales price cache, found . Fares change by the hour: the live fare is shown when you search.
When to fly YYZ–SEA
Days in Seattle average 18–28 °C in May, June, July, August and September. Set your watch 3 hours back on landing at SEA.
Toronto to Seattle: frequently asked questions
Fares: Aviasales price cache, 8 October 2026; tracked flights between 6 September and 3 October 2026, from public ADS-B data.
How much is a flight from Toronto Pearson (YYZ) to Seattle–Tacoma (SEA)?
From C$310 one-way, the cheapest fare found for November 2026 on WestJet with 1 stop (found 8 October 2026).
How long is the YYZ–SEA flight?
4h 44m wheels-up to wheels-down, the median of 5 tracked flights; SEA–YYZ took 3h 56m.
Which airlines fly YYZ–SEA direct?
Air Canada and Alaska Airlines.
What is the time difference between Toronto and Seattle?
Seattle is 3 hours behind Toronto: a YYZ departure at noon is 09:00 local time in SEA.
Is YYZ–SEA usually on time?
83.1% of 59 YYZ–SEA flights landed within 15 minutes of their usual time; 0% were over an hour late.
How many YYZ–SEA flights a week?
Air Canada 4 and Alaska Airlines 4 each way.
What aircraft fly YYZ–SEA?
Airbus A220-300, Boeing 737-900 and Boeing 737 Max 9.
Seattle to Toronto: the return flight (SEA–YYZ)
All 2 airlines also fly SEA–YYZ nonstop.
The return takes 3h 56m in the air (median of 54 tracked flights), 48 minutes shorter than YYZ–SEA.
Airlines flying YYZ–SEA nonstop
| Airline | Usually takes off (YYZ time) | Type | Alliance | Notes |
|---|---|---|---|---|
 Air Canada AC | 20:00–20:50 | full-service | Star Alliance | — |
 Alaska Airlines AS | — | full-service | oneworld | — |
One-stop alternatives to flying YYZ–SEA nonstop
One airline on both legs; check it's sold as one ticket.
- Via Minneapolis (MSP) with
Delta Air Lines and Sun Country Airlines: 3,330 km (2,070 mi) flown, 1% further than nonstop. - Via Calgary (YYC) with
WestJet: 3,420 km (2,120 mi) flown, 3% further than nonstop. - Via Chicago (ORD) with United Airlines: 3,460 km (2,150 mi) flown, 5% further than nonstop.
- Via Salt Lake City (SLC) with Delta Air Lines: 3,770 km (2,340 mi) flown, 14% further than nonstop.
- Via Denver (DEN) with United Airlines: 3,760 km (2,330 mi) flown, 14% further than nonstop.
YYZ–SEA route map
More from Toronto and Seattle
Other arrivals in United States
Also nonstop from YYZ, nearest to SEA first (straight-line distance):
- Sacramento (SMF) airport guide · 975 km (606 mi) from SEA
- YYZ–SFO: San Francisco · 1,090 km (679 mi) from SEA
- Salt Lake City (SLC) airport guide · 1,110 km (688 mi) from SEA
- YYZ–LAS: Las Vegas · 1,390 km (867 mi) from SEA
- YYZ–LAX: Los Angeles · 1,540 km (955 mi) from SEA
Explore the airlines’ route maps
Plan your arrival at Seattle–Tacoma International Airport (SEA)
Departure
Toronto Pearson International Airport
Pearson (YYZ), Toronto. In our data, 55 airlines fly nonstop from YYZ to 172 destinations.
View YYZ airport guide →Arrival
Seattle–Tacoma International Airport
2 ways into Seattle, fastest from 25 min:
- Link light rail (1 Line) 38–40 min · $3
- Taxi or rideshare 25–45 min
Onward from Seattle
Places you can't fly to nonstop from YYZ, but can from SEA — for a stopover or a second leg.
Related routes
Sources
- en.wikipedia.org — airlines and destinations, checked 2026-10-01
- en.wikipedia.org — airlines and destinations, checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
Flight tracking: adsb.lol community ADS-B data (CC0), 6 September – 3 October 2026. Times are median wheels-up to wheels-down; add taxiing for gate-to-gate.
Report a change — seen something different at the airport or on the airline's site? We re-check and log corrections publicly.