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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 19 August 2026.

Sat 21/115:15 p.m. -

Nonstop5h 32m

Mon 4/18:33 a.m. -

Nonstop4h 32m

Deal found 17/8C$ 523

Wed 30/96:45 p.m. -

Nonstop5h 19m

Sat 31/107:45 a.m. -

Nonstop4h 40m

Deal found 17/8C$ 544

Sun 25/106:25 p.m. -

Nonstop5h 34m

Sat 31/107:45 a.m. -

Nonstop4h 40m

Deal found 17/8C$ 554

Thu 22/106:45 p.m. -

Nonstop5h 19m

Thu 29/107:45 a.m. -

Nonstop4h 40m

Deal found 18/8C$ 562

Tue 6/106:45 p.m. -

Nonstop5h 19m

Wed 21/108:00 a.m. -

Nonstop4h 41m

Deal found 17/8C$ 569

Wed 14/106:45 p.m. -

Nonstop5h 19m

Sun 18/108:00 a.m. -

Nonstop4h 41m

Deal found 17/8C$ 579

Wed 30/96:45 p.m. -

Nonstop5h 19m

Wed 7/108:00 a.m. -

Nonstop4h 50m

Deal found 16/8C$ 580

Fri 23/106:45 p.m. -

Nonstop5h 19m

Mon 26/107:45 a.m. -

Nonstop4h 40m

Deal found 17/8C$ 589

Fri 23/106:45 p.m. -

Nonstop5h 19m

Sun 1/117:45 a.m. -

Nonstop4h 40m

Deal found 17/8C$ 598

Wed 23/96:45 p.m. -

Nonstop5h 19m

Sat 3/108:00 a.m. -

Nonstop4h 41m

Deal found 17/8C$ 601

Wed 14/106:45 p.m. -

Nonstop5h 19m

Thu 22/108:00 a.m. -

Nonstop4h 50m

Deal found 17/8C$ 607

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.

YTO-SEA

YYZ-SEA

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.

Fly from

Route

Depart

Return

Price

Cheapest round-trip

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Wed 14/10

4:55 p.m.-7:26 p.m.

Nonstop5h 31m

Seattle/Tacoma Intl

Mon 19/10

8:00 a.m.-3:45 p.m.

Nonstop4h 45m

C$ 632

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Wed 21/10

4:55 p.m.-7:26 p.m.

Nonstop5h 31m

Seattle/Tacoma Intl

Fri 30/10

8:20 a.m.-4:05 p.m.

Nonstop4h 45m

C$ 632

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Thu 15/10

4:55 p.m.-7:26 p.m.

Nonstop5h 31m

Seattle/Tacoma Intl

Sat 17/10

8:00 a.m.-3:45 p.m.

Nonstop4h 45m

C$ 647

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Thu 15/10

4:55 p.m.-7:26 p.m.

Nonstop5h 31m

Seattle/Tacoma Intl

Sun 18/10

8:00 a.m.-3:45 p.m.

Nonstop4h 45m

C$ 647

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Sat 3/10

4:55 p.m.-7:26 p.m.

Nonstop5h 31m

Seattle/Tacoma Intl

Tue 6/10

8:00 a.m.-3:45 p.m.

Nonstop4h 45m

C$ 688

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Tue 10/11

5:15 p.m.-7:45 p.m.

Nonstop5h 30m

Seattle/Tacoma Intl

Wed 25/11

8:31 a.m.-4:05 p.m.

Nonstop4h 34m

C$ 729

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Thu 12/11

6:25 p.m.-8:59 p.m.

Nonstop5h 34m

Seattle/Tacoma Intl

Mon 16/11

7:45 a.m.-3:25 p.m.

Nonstop4h 40m

C$ 736

Quickest round-trip

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Wed 6/1

5:15 p.m.-7:42 p.m.

Nonstop5h 27m

Seattle/Tacoma Intl

Mon 11/1

8:29 a.m.-4:05 p.m.

Nonstop4h 36m

C$ 740

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Sat 24/10

4:55 p.m.-7:26 p.m.

Nonstop5h 31m

Seattle/Tacoma Intl

Sat 31/10

8:20 a.m.-4:05 p.m.

Nonstop4h 45m

C$ 765

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Thu 1/10

4:55 p.m.-7:13 p.m.

Nonstop5h 18m

Seattle/Tacoma Intl

Sun 4/10

8:00 a.m.-3:45 p.m.

Nonstop4h 45m

C$ 765

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/8

Showing 1-10 of 22 resultsSorted by cheapest first

1

2

3

Reviews of airlines flying non-stop to Seattle

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

7.9

Good

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.

Alaska Airlines

7.9

Good

Alaska Airlines

7.9

Good

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.

7.8

Good

Alaska Airlines

7.9

Good

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.

United Airlines

7.4

Good

Alaska Airlines

7.9

Good

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.

7.2

Good

Alaska Airlines

7.9

Good

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.

7.1

Good

Alaska Airlines

7.9

Good

Reviews

1 / 20

10.0

Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.

FAQ about direct flights to Seattle

How much are direct flights to Seattle?
On average, a one-way direct flight to Seattle will cost users approximately C$ 731. If you're looking for a direct round-trip flight to Seattle, you can expect to pay around C$ 855.
Which airlines fly direct to Seattle?
At the moment, Alaska Airlines, Air Canada, WestJet, United Airlines, Harbour Air Seaplanes, Delta offer direct flights to Seattle. Alaska Airlines 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 08m on average. The quickest direct flight to Seattle at this time departs from Kelowna (0h 16m), while the longest leaves from Toronto Pearson Intl Airport (5h 18m).
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, November 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$ 1,127.

See more FAQs

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