Direct flights to Seattle | Cheapflights

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Best

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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 11 August 2026.

Wed 21/106:45 p.m. -

Nonstop5h 19m

Wed 28/107:45 a.m. -

Nonstop4h 40m

Deal found 7/8C$ 509

Thu 24/96:45 p.m. -

Nonstop5h 19m

Wed 30/98:00 a.m. -

Nonstop4h 41m

Deal found 9/8C$ 520

Thu 22/106:45 p.m. -

Nonstop5h 19m

Thu 29/107:45 a.m. -

Nonstop4h 40m

Deal found 10/8C$ 527

Mon 26/106:25 p.m. -

Nonstop5h 34m

Sat 31/107:45 a.m. -

Nonstop4h 40m

Deal found 10/8C$ 529

Tue 15/97:20 p.m. -

Nonstop5h 19m

Tue 29/98:00 a.m. -

Nonstop4h 41m

Deal found 7/8C$ 535

Sat 5/96:45 p.m. -

Nonstop5h 22m

Sat 26/98:00 a.m. -

Nonstop4h 41m

Deal found 6/8C$ 541

Wed 14/106:45 p.m. -

Nonstop5h 19m

Tue 20/108:00 a.m. -

Nonstop4h 50m

Deal found 10/8C$ 547

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 21/10

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

Nonstop5h 31m

Seattle/Tacoma Intl

Fri 23/10

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

Nonstop4h 45m

C$ 619

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Thu 8/10

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

Nonstop5h 31m

Seattle/Tacoma Intl

Wed 21/10

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

Nonstop4h 45m

C$ 739

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Sun 8/11

5:15 p.m.-7:44 p.m.

Nonstop5h 29m

Seattle/Tacoma Intl

Sat 14/11

8:18 a.m.-4:05 p.m.

Nonstop4h 47m

C$ 752

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

Sun 25/10

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

Nonstop4h 45m

C$ 757

Quickest round-trip

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Thu 24/9

6:45 p.m.-9:04 p.m.

Nonstop5h 19m

Seattle/Tacoma Intl

Wed 30/9

8:00 a.m.-3:41 p.m.

Nonstop4h 41m

C$ 841

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Sat 12/12

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

Nonstop5h 34m

Seattle/Tacoma Intl

Mon 15/2

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

Nonstop4h 40m

C$ 841

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Fri 25/9

6:45 p.m.-9:04 p.m.

Nonstop5h 19m

Seattle/Tacoma Intl

Tue 29/9

8:00 a.m.-3:41 p.m.

Nonstop4h 41m

C$ 906

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Thu 10/9

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

Nonstop5h 18m

Seattle/Tacoma Intl

Fri 25/9

7:52 a.m.-3:45 p.m.

Nonstop4h 53m

C$ 918

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Wed 2/9

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

Nonstop5h 18m

Seattle/Tacoma Intl

Sat 12/9

7:52 a.m.-3:45 p.m.

Nonstop4h 53m

C$ 955

TorontoSeattle

YYZ Toronto Pearson Intl - SEA Seattle/Tacoma Intl

YYZSEA

Toronto Pearson Intl

Wed 16/9

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

Nonstop5h 18m

Seattle/Tacoma Intl

Sun 20/9

7:52 a.m.-3:45 p.m.

Nonstop4h 53m

C$ 1,049

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/8

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$ 493. If you're looking for a direct round-trip flight to Seattle, you can expect to pay around C$ 917.
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 3h 04m on average. The quickest direct flight to Seattle at this time departs from Calgary (0h 50m), 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, January 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$ 1,063.

See more FAQs

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