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C$ 216+ Direct flights to Seattle

This is the cheapest price on a non-stop flight to Seattle found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
— SEA
18 Dec — 25 Dec1
1 adult
1 adult, Economy, 0 bags

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Enter your travel dates to find the best prices.

Cheapest flights to Seattle
Explore the most affordable flight options available to Seattle. Find the lowest fares based on data from user searches, with prices last updated on 18 November 2025.

Thu 8/17:50 p.m.YYZ - SEA
Nonstop5h 26mAir Canada
Wed 14/18:10 a.m.SEA - YYZ
Nonstop4h 43mAir Canada
Deal found 18/11C$ 359
Thu 22/14:45 p.m.YYZ - SEA
Nonstop5h 32mAlaska Airlines
Mon 26/17:55 a.m.SEA - YYZ
Nonstop4h 40mAlaska Airlines
Deal found 17/11C$ 370
Wed 10/127:50 p.m.YYZ - SEA
Nonstop5h 26mAir Canada
Tue 16/128:10 a.m.SEA - YYZ
Nonstop4h 43mAir Canada
Deal found 17/11C$ 372
Thu 11/127:50 p.m.YYZ - SEA
Nonstop5h 26mAir Canada
Tue 16/128:10 a.m.SEA - YYZ
Nonstop4h 43mAir Canada
Deal found 17/11C$ 382
Wed 10/124:45 p.m.YYZ - SEA
Nonstop5h 33mAlaska Airlines
Fri 12/127:55 a.m.SEA - YYZ
Nonstop4h 40mAlaska Airlines
Deal found 17/11C$ 387
Thu 11/124:45 p.m.YYZ - SEA
Nonstop5h 33mAlaska Airlines
Sun 14/127:55 a.m.SEA - YYZ
Nonstop4h 40mAlaska Airlines
Deal found 17/11C$ 399
Wed 3/124:45 p.m.YYZ - SEA
Nonstop5h 33mAlaska Airlines
Wed 7/17:55 a.m.SEA - YYZ
Nonstop4h 40mAlaska Airlines
Deal found 18/11C$ 410
Wed 3/124:45 p.m.YYZ - SEA
Nonstop5h 33mAlaska Airlines
Thu 8/17:55 a.m.SEA - YYZ
Nonstop4h 40mAlaska Airlines
Deal found 18/11C$ 420
Wed 17/124:45 p.m.YYZ - SEA
Nonstop5h 33mAlaska Airlines
Wed 7/17:55 a.m.SEA - YYZ
Nonstop4h 40mAlaska Airlines
Deal found 18/11C$ 421
Sat 10/17:50 p.m.YYZ - SEA
Nonstop5h 26mUnited Airlines
Sat 17/18:10 a.m.SEA - YYZ
Nonstop4h 43mUnited Airlines
Deal found 18/11C$ 427
Wed 10/124:45 p.m.YYZ - SEA
Nonstop5h 33mAlaska Airlines
Mon 15/127:55 a.m.SEA - YYZ
Nonstop4h 40mAlaska Airlines
Deal found 18/11C$ 429
Fri 23/17:50 p.m.YYZ - SEA
Nonstop5h 26mAir Canada
Mon 26/18:10 a.m.SEA - YYZ
Nonstop4h 43mAir Canada
Deal found 17/11C$ 432

Best time to book a flight to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Fare Finder

 
Use the slider to find non-stop flights to Seattle within your budget. Price data is based on user searches made on Cheapflights. Over the past seven days, Cheapflights users made 629,999 searches and data was last updated on 18 November 2025.
Use the filters below to find and compare direct flights to Seattle that are best for you.

Fly from

Toronto

Route

Depart

Return

Price

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Sat 14/2

4:45 p.m.-7:18 p.m.

Nonstop5h 33m

Seattle/Tacoma Intl

Sat 21/2

7:55 a.m.-3:35 p.m.

Nonstop4h 40m

C$ 337

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Tue 17/2

4:45 p.m.-7:18 p.m.

Nonstop5h 33m

Seattle/Tacoma Intl

Sat 21/2

7:55 a.m.-3:35 p.m.

Nonstop4h 40m

C$ 337

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Fri 13/2

4:45 p.m.-7:18 p.m.

Nonstop5h 33m

Seattle/Tacoma Intl

Fri 20/2

7:55 a.m.-3:35 p.m.

Nonstop4h 40m

C$ 358

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 26/2

4:45 p.m.-7:18 p.m.

Nonstop5h 33m

Seattle/Tacoma Intl

Mon 2/3

7:55 a.m.-3:35 p.m.

Nonstop4h 40m

C$ 361

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 22/1

4:45 p.m.-7:17 p.m.

Nonstop5h 32m

Seattle/Tacoma Intl

Mon 26/1

7:55 a.m.-3:35 p.m.

Nonstop4h 40m

C$ 370

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Sat 10/1

7:50 p.m.-10:16 p.m.

Nonstop5h 26m

Seattle/Tacoma Intl

Sun 11/1

8:10 a.m.-3:53 p.m.

Nonstop4h 43m

C$ 382

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Mon 2/3

4:45 p.m.-7:18 p.m.

Nonstop5h 33m

Seattle/Tacoma Intl

Tue 3/3

7:55 a.m.-3:35 p.m.

Nonstop4h 40m

C$ 382

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Fri 27/2

7:50 p.m.-10:16 p.m.

Nonstop5h 26m

Seattle/Tacoma Intl

Mon 2/3

8:10 a.m.-3:53 p.m.

Nonstop4h 43m

C$ 393

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 22/1

7:50 p.m.-10:16 p.m.

Nonstop5h 26m

Seattle/Tacoma Intl

Thu 29/1

8:10 a.m.-3:53 p.m.

Nonstop4h 43m

C$ 393

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Fri 12/12

4:45 p.m.-7:18 p.m.

Nonstop5h 33m

Seattle/Tacoma Intl

Sun 14/12

7:55 a.m.-3:35 p.m.

Nonstop4h 40m

C$ 399

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/11

Showing 1-10 of 22 results
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Reviews of airlines flying non-stop to Seattle

Get insights into the airlines that provide direct flights to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 18 November 2025.
Check out reviews from past customers who have flown Alaska Airlines,Delta, andUnited Airlines to the United States to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,316 reviews
Check prices

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
Alaska Airlines
8.0
Very good
11,316 reviews
Alaska Airlines
8.0
Very good
11,316 reviews
Check prices

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
Delta
7.9
Good
8,007 reviews
Alaska Airlines
8.0
Very good
11,316 reviews
Check prices

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
United Airlines
7.4
Good
9,015 reviews
Alaska Airlines
8.0
Very good
11,316 reviews
Check prices

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
WestJet
7.2
Good
3,163 reviews
Alaska Airlines
8.0
Very good
11,316 reviews
Check prices

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.
Air Canada
7.1
Good
10,459 reviews
Alaska Airlines
8.0
Very good
11,316 reviews
Check prices

Boarding

8.1

Entertainment

7.0

Overall

8.0

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Marcie,Nov 2025

PIT - SEA

It was not a full flight, so I was able to enjoy a row to myself. Luck of the draw, I guess.

Temperature and rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average temperature and rainfall totals by month.

SEA

Temperature

5 - 19 °C

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

FAQ about direct flights to Seattle

Find answers to frequently asked questions about direct flights to Seattle to unlock the best deals on Cheapflights.

  • How much are direct flights to Seattle?

    On average, a one-way direct flight to Seattle will cost users approximately C$ 568. If you're looking for a direct round-trip flight to Seattle, you can expect to pay around C$ 1,407.

  • Which airlines fly direct to Seattle?

    At the moment, WestJet, Air Canada, Alaska Airlines, United Airlines, Delta, Hawaiian Airlines, American Airlines, Harbour Air Seaplanes offer direct flights to Seattle. WestJet is currently the most popular airline that flies direct to Seattle.

  • How long is a direct flight to Seattle?

    While the flight duration depends heavily on the origin, travellers can expect non-stop flights to Seattle to last approximately 2h 00m on average. The quickest direct flight to Seattle at this time departs from Victoria (0h 51m), while the longest leaves from Toronto Pearson Intl Airport (5h 20m).

  • What is the best time of year to fly direct to Seattle?

    If you're seeking the lowest price on a direct flight to Seattle, October is worth consideration, as prices are usually at their lowest, on average. January may be most appealing to users looking for the quietest time to visit Seattle, when demand is typically at its lowest.

  • What is the most popular direct flight origin to Seattle?

    Currently, the most popular direct flight origin to Seattle is Calgary. A round-trip direct flight from Calgary to Seattle typically costs around C$ 595.

See more FAQs

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