Direct flights to Seattle | Cheapflights

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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 June 2026.

Fri 4/126:25 p.m.

YYZ

-

SEA

Nonstop5h 29m

Air Canada

Sat 5/127:45 a.m.

SEA

-

YYZ

Nonstop4h 40m

Air Canada

Deal found 14/6C$ 498

Wed 30/96:45 p.m.

YYZ

-

SEA

Nonstop5h 19m

Air Canada

Mon 5/108:00 a.m.

SEA

-

YYZ

Nonstop4h 50m

Air Canada

Deal found 18/6C$ 503

Mon 2/116:25 p.m.

YYZ

-

SEA

Nonstop5h 29m

Air Canada

Wed 11/117:45 a.m.

SEA

-

YYZ

Nonstop4h 40m

Air Canada

Deal found 16/6C$ 504

Tue 13/106:45 p.m.

YYZ

-

SEA

Nonstop5h 19m

Air Canada

Tue 20/108:00 a.m.

SEA

-

YYZ

Nonstop4h 50m

Air Canada

Deal found 17/6C$ 505

Fri 13/116:25 p.m.

YYZ

-

SEA

Nonstop5h 29m

Air Canada

Sun 15/117:45 a.m.

SEA

-

YYZ

Nonstop4h 40m

Air Canada

Deal found 16/6C$ 507

Wed 21/106:45 p.m.

YYZ

-

SEA

Nonstop5h 19m

Air Canada

Sat 24/108:00 a.m.

SEA

-

YYZ

Nonstop4h 50m

Air Canada

Deal found 18/6C$ 525

Thu 5/116:25 p.m.

YYZ

-

SEA

Nonstop5h 29m

Air Canada

Wed 11/117:45 a.m.

SEA

-

YYZ

Nonstop4h 40m

Air Canada

Deal found 17/6C$ 527

Wed 30/96:45 p.m.

YYZ

-

SEA

Nonstop5h 19m

Air Canada

Wed 7/108:00 a.m.

SEA

-

YYZ

Nonstop4h 50m

Air Canada

Deal found 17/6C$ 528

Tue 22/96:45 p.m.

YYZ

-

SEA

Nonstop5h 19m

Air Canada

Sat 3/108:00 a.m.

SEA

-

YYZ

Nonstop4h 50m

Air Canada

Deal found 15/6C$ 529

Wed 23/94:55 p.m.

YYZ

-

SEA

Nonstop5h 18m

Alaska Airlines

Wed 30/97:52 a.m.

SEA

-

YYZ

Nonstop4h 53m

Alaska Airlines

Deal found 15/6C$ 562

Mon 21/96:45 p.m.

YYZ

-

SEA

Nonstop5h 19m

Air Canada

Mon 28/98:00 a.m.

SEA

-

YYZ

Nonstop4h 50m

Air Canada

Deal found 17/6C$ 568

Thu 1/104:55 p.m.

YYZ

-

SEA

Nonstop5h 18m

Alaska Airlines

Mon 5/108:00 a.m.

SEA

-

YYZ

Nonstop4h 45m

Alaska Airlines

Deal found 18/6C$ 614

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 - SEA

YYZSEA

Toronto Pearson Intl

Wed 23/9

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

Nonstop5h 18m

Seattle/Tacoma Intl

Sun 27/9

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

Nonstop4h 53m

C$ 781

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 3/9

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

Nonstop5h 18m

Seattle/Tacoma Intl

Wed 9/9

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

Nonstop4h 53m

C$ 870

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Wed 2/9

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

Nonstop5h 18m

Seattle/Tacoma Intl

Wed 9/9

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

Nonstop4h 53m

C$ 870

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Tue 1/9

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

Nonstop5h 18m

Seattle/Tacoma Intl

Wed 9/9

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

Nonstop4h 53m

C$ 919

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Sat 5/9

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

Nonstop5h 18m

Seattle/Tacoma Intl

Tue 22/9

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

Nonstop4h 53m

C$ 922

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 3/9

6:45 p.m.-9:07 p.m.

Nonstop5h 22m

Seattle/Tacoma Intl

Thu 24/9

8:00 a.m.-3:50 p.m.

Nonstop4h 50m

C$ 923

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Thu 3/9

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

Nonstop5h 18m

Seattle/Tacoma Intl

Mon 7/9

7:59 a.m.-3:45 p.m.

Nonstop4h 46m

C$ 932

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Tue 1/9

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

Nonstop5h 18m

Seattle/Tacoma Intl

Mon 7/9

7:59 a.m.-3:45 p.m.

Nonstop4h 46m

C$ 980

Quickest round-trip

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Tue 21/7

6:45 p.m.-9:07 p.m.

Nonstop5h 22m

Seattle/Tacoma Intl

Tue 28/7

8:00 a.m.-3:39 p.m.

Nonstop4h 39m

C$ 1,053

TorontoSeattle

YYZ - SEA

YYZSEA

Toronto Pearson Intl

Fri 24/7

4:55 p.m.-7:25 p.m.

Nonstop5h 30m

Seattle/Tacoma Intl

Sun 2/8

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

Nonstop4h 45m

C$ 1,139

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/6

Showing 1-10 of 24 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$ 432. If you're looking for a direct round-trip flight to Seattle, you can expect to pay around C$ 1,162.
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 1h 53m on average. The quickest direct flight to Seattle at this time departs from Vancouver Intl Airport (0h 05m), while the longest leaves from Toronto Pearson Intl Airport (5h 19m).
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$ 1,382.

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