Cheap flights from Toronto to Seattle

YTO — SEA
6 Feb — 13 Feb1
Return
1 adult
Economy
From?
To?
Mon 6/2
Mon 13/2

The best prices from Toronto to Seattle/Tacoma Intl are usually found in January or November, booked 47 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

How to find the cheapest flight from Toronto (YTO) to Seattle (SEA)

All the information you need to plan the best YTO to SEA flight in 2023: compare Toronto to Seattle flight prices with the expected peak season, weather and rainfall in Seattle.

YTO - SEA

Price

C$ 414 - C$ 625

SEA

Temperature

5 - 19 °C

SEA

Rainfall

18 - 168 mm

Popular inJulyHigh demand for flights, 17% potential price rise
Cheapest inJanuaryBest time to find cheap flights, 20% potential price drop
Round-trip fromC$ 554From Toronto (YTO) to Seattle/Tacoma Intl
One-way fromC$ 174One-way flight from Toronto (YTO) to Seattle/Tacoma Intl

What is the cheapest day to fly round-trip from Toronto to Seattle?

It’s generally more expensive to depart on a Tuesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

How far in advance should I book a flight from Toronto to Seattle?

To save up to 32% on this flight, we recommend booking at least 47 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Toronto to Seattle from C$ 802 1-2 weeks out and tickets from C$ 997 for flights departing within the next 72 hours.

What is the cheapest month to fly from Toronto to Seattle?

January is one of the best times of the year to fly to Seattle from Toronto. Prices for January average C$ 690 per person but you can even find prices for as low as C$ 408. The most expensive prices can be found in the month of July. Opting for a January flight can save you 21% on your journey compared to booking in July

When is the cheapest time to fly from Toronto to Seattle (YTO - SEA)?

A simple way to save on the total cost of your ticket is to fly from Toronto to Seattle at noon. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight in the afternoon.

Cheap flights from Toronto to Seattle in February, March 2023

The best prices found for YTO to SEA flights for February, March
1 Mar. - 8 Mar.
YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

11h 35m
SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

9h 26m
C$ 281

Multiple Airlines

Deal found 30/1

1 Mar. - 8 Mar.
YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

11h 35m
SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

9h 26m
C$ 284

Multiple Airlines

Deal found 30/1

1 Mar. - 8 Mar.
YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

11h 35m
SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

9h 26m
C$ 288

Multiple Airlines

Deal found 30/1

Toronto to Seattle 2023 flight deals

Cheap flights to Seattle from Toronto found for this year
1 Mar. - 8 Mar.
YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

11h 35m
SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

9h 26m
C$ 281

Multiple Airlines

Deal found 30/1

1 Mar. - 8 Mar.
YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

11h 35m
SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

9h 26m
C$ 284

Multiple Airlines

Deal found 30/1

1 Mar. - 8 Mar.
YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

11h 35m
SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

9h 26m
C$ 288

Multiple Airlines

Deal found 30/1

Cheap WestJet flights from Toronto to Seattle

21 Apr. - 29 Apr.
YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

2 stops

10h 58m
SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

8h 44m
C$ 418

WestJet

Deal found 31/1

17 Apr. - 21 Apr.
YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

2 stops

10h 58m
SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

8h 59m
C$ 419

WestJet

Deal found 30/1

11 Apr. - 13 Apr.
YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

28h 33m
SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

8h 44m
C$ 443

WestJet

Deal found 30/1

Cheap Air Canada flights from Toronto to Seattle

10 Feb. - 20 Feb.
YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

7h 38m
SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

9h 24m
C$ 723

Air Canada

Deal found 30/1

17 May - 27 May
YTZ

Toronto Island

SEA

Seattle/Tacoma Intl

1 stop

8h 44m
SEA

Seattle/Tacoma Intl

YTZ

Toronto Island

1 stop

9h 19m
C$ 735

Air Canada

Deal found 30/1

Direct flights to Seattle from Toronto

Save time with Toronto to Seattle direct flight deals
3 Mar. - 8 Mar.
YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 28m
SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

Nonstop

4h 43m
C$ 527

Air Canada

Deal found 30/1

27 Feb. - 5 Mar.
YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 28m
SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

Nonstop

4h 43m
C$ 546

Air Canada

Deal found 30/1

1 Mar. - 8 Mar.
YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 28m
SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

Nonstop

4h 43m
C$ 551

Air Canada

Deal found 30/1

Last minute flights from Toronto to Seattle

Late deals on round-trip flights to Seattle from Toronto, departing today and this week
8 Feb. - 12 Feb.
YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

22h 36m
SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

2 stops

35h 01m
C$ 340

Multiple Airlines

Deal found 29/1

8 Feb. - 15 Feb.
YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

12h 38m
SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

9h 40m
C$ 353

Multiple Airlines

Deal found 1/2

8 Feb. - 22 Feb.
YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

11h 53m
SEA

Seattle/Tacoma Intl

YYZ

Toronto Pearson Intl

1 stop

10h 35m
C$ 369

Multiple Airlines

Deal found 30/1

One-way flights to Seattle from Toronto

The cheapest one-way flights from Toronto to Seattle
12 Apr.
YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

17h 40m
C$ 174

Multiple Airlines

Deal found 30/1

8 Mar.
YYZ

Toronto Pearson Intl

SEA

Seattle/Tacoma Intl

1 stop

11h 38m
C$ 182

Multiple Airlines

Deal found 30/1

6 Mar.
YKF

Toronto Kitchener-Waterloo

SEA

Seattle/Tacoma Intl

2 stops

27h 27m
C$ 186

Multiple Airlines

Deal found 31/1

Related info for your journey

Useful info, stats and facts about Toronto to Seattle flights.

What airport do you fly into for flights to Seattle from Toronto?

For a flight from Toronto to Seattle, you will be flying into Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 18.4 km from the centre of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 2 inbound flights from Toronto per day. 9 airlines have flights to Seattle/Tacoma Intl from Toronto on a regular basis.

Which airlines flying from Toronto to Seattle/Tacoma Intl have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like Air Canada, Delta, and United Airlines flying from Toronto to Seattle/Tacoma Intl have implemented new flexible cancellation policies.

Can I find flights from Toronto to Seattle for under C$ 300 on Cheapflights?

Yes, there are multiple flights from Toronto to Seattle for under C$ 300. The cheapest flight booked recently is on Multiple Airlines for just C$ 281, but on average you can expect to pay C$ 381.

Are there direct flights from Toronto to Seattle for under C$ 600 on Cheapflights?

Cheapflights has 20 direct flights from Toronto to Seattle under C$ 600. A good price for a direct flight from Toronto to Seattle is less than C$ 592.

Are there last-minute flights available from Toronto to Seattle for under C$ 400?

There are currently 20+ open flights from Toronto to Seattle within the next 7 days for less than C$ 400.

What is the cheapest airline to fly from Toronto to Seattle round-trip?

According to our current data, WestJet (C$ 418), offers the cheapest pricing from Toronto to Seattle. This flight start at 39% lower than the current average price 3 months from now.

What are the most popular routes from Toronto to Seattle?

While some choose either Toronto Island - Seattle/Tacoma Intl or Toronto Hamilton - Seattle/Tacoma Intl, Toronto Pearson Intl - Seattle/Tacoma Intl is the most popular route from Toronto to Seattle.

What are the most popular airlines that fly from Toronto to Seattle?

The most popular airlines flying from Toronto to Seattle are Undisclosed Carrier, Endeavor Airlines and American Airlines. Something to consider prior to booking your flight.

What are the cheapest flights from Toronto to Seattle?

Looking at all options, your cheapest flight can be booked for C$ 307. While the most popular route (Toronto Pearson Intl - Seattle/Tacoma Intl) can be booked for C$ 284 on average our data indicates C$ 591 when flying from Toronto to Seattle.

Alternative routes for Toronto to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Ottawa to Seattlefrom C$ 564 pp
London to Seattlefrom C$ 613 pp
Windsor to Seattlefrom C$ 633 pp
Sudbury to Seattlefrom C$ 1,038 pp

Top 7 airlines flying from Toronto to Seattle

The chart below displays the airlines Cheapflights users travelling from Toronto to Seattle choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Juneyao AirlinesCheapestC$ 20AverageC$ 35FlexibilityNo cancel feeOn-time66%COVID-19 safety
Search Juneyao Airlines flights
United AirlinesCheapestC$ 354AverageC$ 657FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights
Air CanadaCheapestC$ 447AverageC$ 728FlexibilityNo cancel feeOn-time67%COVID-19 safety
Search Air Canada flights
WestJetCheapestC$ 457AverageC$ 953FlexibilityNo cancel feeOn-time60%COVID-19 safety
Search WestJet flights
American AirlinesCheapestC$ 475AverageC$ 684FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights
DeltaCheapestC$ 488AverageC$ 666FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Delta flights
Endeavor AirlinesCheapestC$ 677AverageC$ 895FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Endeavor Airlines flights

Hourly flight availability from Toronto to Seattle

See what time of day planes typically take off from Toronto to Seattle
0%of flight departuresEarly morningMidnight to 6 am
0%of flight departuresMorning6 am to noon
100%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Toronto to Seattle

See how many times per day planes take to the skies headed from Toronto to Seattle
Sunday2daily flights
Monday2daily flights
Tuesday2daily flights
Wednesday2daily flights
Thursday2daily flights
Friday2daily flights
Saturday2daily flights
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.