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Cheap flights from Seattle to Toronto

18 nonstop flights a week, 3 of them today. Operated by 3 airlines, about 4h 44m in the air, 2,066 mi (3,325 km). Tickets from $183, nonstop from $194.

Flights from Seattle to Toronto

Pick a departure date to see flights and seller prices

We search agencies and airlines for your day: nonstop and connecting flights, baggage, departure and arrival times.

Filters

Best fares from Seattle to Toronto

Lowest one-way prices found by recent searches for the next 120 days; press a card to search that date

Cheapest one-way $183 15 January 2027, with a connection Cheapest nonstop $194 15 January 2027, Air Canada Cheapest in the next 7 days $364 Tomorrow Cheapest month January 2027 tickets from $183

Seattle to Toronto at a glance

flight time, from 4h 32m to 8h 55m
4h 44m
straight-line distance
2,066 mi (3,325 km)
flights a week
18
flights today
3
first and last departure
07:45 - 19:35
lowest price, with a connection, 15 January
$183
lowest nonstop price
$194
airlines
3

Seattle to Toronto ticket prices by month

Lowest one-way fare found by recent searches

Cheapest month: January 2027, tickets from $183. Prices come from searches over the last few days; check the search for your exact date.

The most expensive month is November 2026: from $364. The average across months is $273.

Seattle to Toronto flight schedule

18 flights a week, 3 today, 5 seasonal or one-off. Departure and arrival times are local.

FlightDepartsArrivesDurationDaysAircraft
AC 540
Air Canada
07:45 Seattle-Tacoma International
15:25 Pearson International, terminal 1
4h 40m
Tue, Thu, Fri, Sat, Sun
Airbus A220-300
AS 385
Alaska Airlines
08:19 Seattle-Tacoma International
16:05 Pearson International, terminal 3
4h 46m
Daily
Boeing 737
AS 385
Alaska Airlines
08:31 Seattle-Tacoma International
16:05 Pearson International, terminal 3
4h 34m
Mon, Fri, Sat, Sun
Boeing 737-900
UA 1334
United Airlines
19:35 Seattle-Tacoma International
07:30 Pearson International, terminal 1
8h 55m
Mon, Tue, Wed, Thu, Fri, Sun
Boeing 737

Seasonal and one-off flights

Not operating in the next two weeks. The first of them is on 1 December.

FlightDepartsArrivesDurationDaysAircraft
AS 385
Alaska Airlines
08:33 Seattle-Tacoma International
16:05 Pearson International, terminal 3
4h 32m
Seasonal
Boeing 737
AS 385
Alaska Airlines
08:29 Seattle-Tacoma International
16:05 Pearson International, terminal 3
4h 36m
Seasonal
Boeing 737-900
AS 1495
Alaska Airlines
08:21 Seattle-Tacoma International
16:05 Pearson International, terminal 3
4h 44m
Seasonal
Boeing 737-900
AS 1495
Alaska Airlines
07:55 Seattle-Tacoma International
15:39 Pearson International, terminal 3
4h 44m
Seasonal
Boeing 737-900
AC 540
Air Canada
08:15 Seattle-Tacoma International
16:09 Pearson International, terminal 1
4h 54m
Seasonal
Airbus A220-300

Days of the week are taken from the schedule for the next 14 days; schedules change by season. Toronto is 3 hours ahead of Seattle. The search shows seat availability and the price for your date.

Airlines flying Seattle to Toronto

Flights a week by schedule and the cheapest nonstop fare of each airline found by recent searches

Alaska Airlines7 a week United Airlines6 a week Air Canada5 a week

Airports

Where flights from Seattle to Toronto depart and land

Departure from Seattle

Seattle-Tacoma International SEA

18 flights a week, 11 mi (18 km) from the city centre

About the airport

Arrival in Toronto

Pearson International YYZ

18 flights a week, terminals 1, 3, 12 mi (19 km) from the city centre

About the airport

When to visit Toronto

Weather by month

Best time to visit: May, June, July, August and September, +18° to +26° by day. In November it is +8° by day and +2° at night, with 9 rainy days.

Jan
−1° −7° 9 days
Feb
+1° −8° 9 days
Mar
+6° −3° 11 days
Apr
+11° +3° 13 days
May
+18° +9° 10 days
Jun
+24° +15° 11 days
Jul
+26° +18° 12 days
Aug
+26° +17° 10 days
Sep
+22° +14° 8 days
Oct
+16° +8° 11 days
Nov
+8° +2° 9 days
Dec
+3° −3° 13 days

Daytime and night temperatures in °C, rainy days. Months with the most comfortable weather are in green. Long-term averages.

Frequently asked questions

How long is the flight from Seattle to Toronto?
A nonstop flight takes 4 hours 44 minutes on average, from 4h 32m to 8h 55m depending on the flight.
How far is Toronto from Seattle?
2,066 mi (3,325 km) in a straight line between the cities.
Which airlines fly nonstop from Seattle to Toronto?
Alaska Airlines (7 a week), United Airlines (6 a week) and Air Canada (5 a week).
How many flights a day are there from Seattle to Toronto?
3 flights today and 18 a week, about 2.6 a day on average.
When are the first and last flights from Seattle to Toronto?
The first departure is at 07:45 (AC540), the last at 19:35 (UA1334). Local time.
What is the cheapest month to fly from Seattle to Toronto?
January 2027: tickets from $183. The most expensive is November 2026, from $364.
What is the cheapest upcoming date to fly from Seattle to Toronto?
15 January 2027 (Friday): from $183 one way, with a connection, by recent searches. The search shows the price for your dates.
Which airline is the cheapest from Seattle to Toronto?
Air Canada: nonstop tickets from $194 on 15 January by recent searches. Prices change daily, so compare the sellers in the search.
What is the time difference between Seattle and Toronto?
Toronto is 3 hours ahead of Seattle. Schedule times on this page are local to each airport.
Which Seattle airport do flights to Toronto leave from?
Seattle-Tacoma International (18 a week).