Which airlines fly to Seattle?

Based on our data, the most popular airlines that fly to Seattle from Canada are WestJet, Air Canada, Alaska Airlines and United Airlines. There may also be other airline options depending on where in Canada you’re flying from.

Alaska Airlines Flights to Seattle

Alaska Airlines operates around 61 flights into Seattle in any given week. The most common departure point for these flights was from Portland, with the best round-trip Alaska Airlines deal found being C$ 221 (Edmonton to Seattle). Users have rated Alaska Airlines 8.0/10 in over 11,091 reviews on momondo.

Delta Flights to Seattle

Delta flights to Seattle can start from as low as C$ 161 (round-trip, from Montreal Pierre Elliott Trudeau Intl, found in the last 72 hours). Over 49 flights that Delta operates to Seattle in a normal week, prices can vary significantly. The most popular Delta flight to Seattle is from Spokane. Delta has been rated 7.9/10 by momondo users, in 7,978 reviews.

How long does it take to fly to Seattle?

Flight times from Canada to Seattle vary, but if you’re flying out of Toronto Pearson Intl and flying into Seattle/Tacoma Intl (one of the most popular routes), then the duration is 5h 15m on average. Another popular route from Canada to Seattle is flying from Vancouver Intl to Seattle/Tacoma Intl, which will take roughly 1h 01m. Keep in mind that layovers or delays could extend your travel time.

C$ 101 Cheap Flights to Seattle in 2025/26

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Find the cheapest flights from Canada to Seattle

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One-way

Last minute

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Cheap round-trip flights

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9:00 a.m. - 10:22 a.m.YLW-SEA

1h 22mdirect

11:55 a.m. - 1:15 p.m.SEA-YLW

1h 20mdirect

C$ 160WestJet

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Mon, 10 Nov - Mon, 17 Nov

9:00 a.m. - 10:22 a.m.YLW-SEA

1h 22mdirect

3:10 p.m. - 9:50 p.m.SEA-YLW

6h 40m1 stop

C$ 163WestJet

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Mon, 8 Dec - Mon, 8 Dec

7:35 p.m. - 8:37 p.m.YVR-SEA

1h 02mdirect

11:10 p.m. - 12:10 a.m.SEA-YVR

1h 00mdirect

C$ 183Alaska Airlines

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Tue, 11 Nov - Tue, 18 Nov

3:52 p.m. - 5:06 p.m.YLW-SEA

1h 14mdirect

1:47 p.m. - 3:02 p.m.SEA-YLW

1h 15mdirect

C$ 202Alaska Airlines

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Mon, 10 Nov - Wed, 12 Nov

6:15 p.m. - 7:16 p.m.YVR-SEA

1h 01mdirect

10:05 a.m. - 11:10 a.m.SEA-YVR

1h 05mdirect

C$ 208Air Canada

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Sat, 8 Nov - Sun, 9 Nov

6:00 p.m. - 10:31 p.m.YYC-SEA

5h 31m1 stop

2:55 p.m. - 8:27 p.m.SEA-YYC

4h 32m1 stop

C$ 225Air Canada

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Tue, 21 Oct - Fri, 24 Oct

7:00 a.m. - 4:15 p.m.YVR-SEA

9h 15m1 stop

8:36 a.m. - 6:03 p.m.SEA-YVR

9h 27m1 stop

C$ 268United Airlines

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Tue, 11 Nov - Thu, 13 Nov

10:25 a.m. - 2:31 p.m.YLW-SEA

4h 06m1 stop

7:15 a.m. - 11:08 p.m.SEA-YLW

15h 53m2 stops

C$ 299United Airlines

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Tue, 10 Feb - Tue, 10 Mar

7:00 a.m. - 2:41 p.m.YUL-SEA

10h 41m2 stops

9:35 p.m. - 11:59 a.m.SEA-YUL

11h 24m2 stops

C$ 525Delta

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Wed, 5 Nov - Sat, 15 Nov

12:50 p.m. - 6:40 p.m.YUL-SEA

8h 50m1 stop

12:05 p.m. - 11:42 p.m.SEA-YUL

8h 37m2 stops

C$ 571Delta

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Wed, 12 Nov - Wed, 19 Nov

Fly from

Route

Depart

Return

Price

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Mon 10/11

9:00 a.m.-10:22 a.m.

Nonstop1h 22m

Seattle/Tacoma Intl

Mon 17/11

11:55 a.m.-1:15 p.m.

Nonstop1h 20m

C$ 160

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Mon 8/12

9:00 a.m.-10:22 a.m.

Nonstop1h 22m

Seattle/Tacoma Intl

Mon 8/12

3:10 p.m.-9:50 p.m.

1 stop6h 40m

C$ 163

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Tue 11/11

7:35 p.m.-8:37 p.m.

Nonstop1h 02m

Seattle/Tacoma Intl

Tue 18/11

11:10 p.m.-12:10 a.m.

Nonstop1h 00m

C$ 183

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Mon 10/11

3:52 p.m.-5:06 p.m.

Nonstop1h 14m

Seattle/Tacoma Intl

Wed 12/11

1:47 p.m.-3:02 p.m.

Nonstop1h 15m

C$ 202

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Sat 8/11

6:15 p.m.-7:16 p.m.

Nonstop1h 01m

Seattle/Tacoma Intl

Sun 9/11

10:05 a.m.-11:10 a.m.

Nonstop1h 05m

C$ 208

CalgarySeattle

YYC - SEA

YYCSEA

Calgary

Tue 21/10

6:00 p.m.-10:31 p.m.

1 stop5h 31m

Seattle/Tacoma Intl

Fri 24/10

2:55 p.m.-8:27 p.m.

1 stop4h 32m

C$ 225

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Tue 11/11

7:00 a.m.-4:15 p.m.

1 stop9h 15m

Seattle/Tacoma Intl

Thu 13/11

8:36 a.m.-6:03 p.m.

1 stop9h 27m

C$ 268

KelownaSeattle

YLW - SEA

YLWSEA

Kelowna

Tue 10/2

10:25 a.m.-2:31 p.m.

1 stop4h 06m

Seattle/Tacoma Intl

Tue 10/3

7:15 a.m.-11:08 p.m.

2 stops15h 53m

C$ 299

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Wed 5/11

7:00 a.m.-2:41 p.m.

2 stops10h 41m

Seattle/Tacoma Intl

Sat 15/11

9:35 p.m.-11:59 a.m.

2 stops11h 24m

C$ 525

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Wed 12/11

12:50 p.m.-6:40 p.m.

1 stop8h 50m

Seattle/Tacoma Intl

Wed 19/11

12:05 p.m.-11:42 p.m.

2 stops8h 37m

C$ 571

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

Seattle flights insights and trends

Explore insights for your Seattle flight to craft the best travel plan

Prices

Other information

What is the cheapest month to fly to Seattle?

If you aren’t able to travel to Seattle during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of C$ 373.

What is the absolute cheapest flight to Seattle?

C$ 139 is the cheapest deal found on momondo in the last two weeks for a flight to Seattle. This flight is from Los Angeles and is 67% cheaper than most flights to Seattle. To find the cheapest price to Seattle from your area, use momondo’s Airport-to-Airport Pricing Tool.

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What is the cheapest day to depart on your flight to Seattle?

Our data shows that Thursday is the least expensive day to fly to Seattle. Tickets to fly out on this day can be as low as C$ 564. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around C$ 787. These prices are subject to change though, so be sure to set up a Price Alert for flights to Seattle.

What is the cheapest time of day to depart on your flight to Seattle?

Our most recent data shows that the best time of day to fly to Seattle is in the evening. Flights from Canada to Seattle during this time can be as low as C$ 447. Flights in the morning are often more expensive with an average ticket price of C$ 855.

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

You are more likely to see cheaper flights to Seattle from Canada when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around C$ 500 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Canada for as low as C$ 437 on momondo.

Cheapest flights to Seattle/Tacoma Intl

Find the cheapest flights to Seattle/Tacoma Intl from your nearest city or airport

Find Flights from Toronto Pearson Intl Airport to Seattle

CHEAPEST MONTH TO FLY TO SEATTLE FROM TORONTO PEARSON INTL AIRPORT	February	25% cheaper	Flying from Toronto Pearson Intl Airport to Seattle costs on average just C$ 378 in February
MOST EXPENSIVE MONTH TO FLY TO SEATTLE FROM TORONTO PEARSON INTL AIRPORT	July	26% more expensive	It costs about C$ 630 for flights to Seattle from Toronto Pearson Intl Airport in July
MOST POPULAR MONTH TO FLY TO SEATTLE FROM TORONTO PEARSON INTL AIRPORT	August	249% more users visited	More momondo users searched in flights to Seattle from Toronto Pearson Intl Airport in August than any other month

Cheap Seattle flight deals and tips

Summary info about Seattle flight prices, duration and airlines

Best One-Way Price	C$ 101
Best Round-Trip Price	C$ 160
Fastest flight time	1h 02m
Popular in	November

The best one-way flight price to Seattle from Canada in the last 72 hours is C$ 101 (Vancouver Intl to Seattle/Tacoma Intl).

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The best round-trip flight price to Seattle from Canada in the last 72 hours is C$ 160 (Kelowna to Seattle/Tacoma Intl).

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The fastest flight to Seattle from Canada takes 1h 02m (Vancouver Intl to Seattle/Tacoma Intl).

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November has the highest demand for flights to Seattle, with a 7% price increase on average.

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Frequently asked questions about flying to Seattle

What is there to do in Seattle when it’s raining?

When planning your flight to Seattle, it is important to be aware that some months are not as ideal as others. Specifically, the months of January, November, or December could carry a higher chance of rain, as Seattle sees up to 5.1 inches (130 mm) or more. There are still things to do in Seattle even when it's raining, but be aware that rain is highly probable in the area. Museum of Pop Culture is a great museum to visit near Seattle and is especially great when the weather outside is less than desirable. Many tourists kill time during rain and storms by going to shopping centres in the area, like Pike Place Market.

When is it best to fly to Seattle to go sightseeing?

Most momondo users would consider October to be the best times to fly to Seattle to see sights like Pike Place Market, Seattle Waterfront, and Seattle Center. Typically, the weather in Seattle is under 70 degrees Fahrenheit (21°C) but still warm and the chance of rain is only moderate.

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

We recommend purchasing flights from Canada to Seattle 75 days ahead of your departure date because this is when momondo users tend to see the best flight rates. On average, our users have found flights to Seattle for C$ 494. However, in the past 72 hours, people saw flights from Canada for as low as C$ 337.

Is there an alternative airport near Seattle?

Finding an alternative and possibly cheaper destination airport near Seattle is possible. If you are planning a flight to Seattle, consider booking flights to Seattle Lake Union Spb Airport (2 km from Seattle city centre), Seattle King County/Boeing Airport (9 km from Seattle city centre), Kenmore Air Harbor Airport (15 km from Seattle city centre), Everett Paine Field Airport (33 km from Seattle city centre) or Lopez Island Airport (107 km from Seattle city centre).

Is there a cheaper alternative to flying into Seattle?

Everett Paine Field Airport has an average price of C$ 238 per person and is typically the cheapest airport to fly into when visiting Seattle. This average price does vary based on departure city. Try momondo’s Airport-to-Airport Pricing Tool to find the cheapest flight.

When did momondo last update prices for flights to Seattle/Tacoma Intl Airport?

Prices for flights to Seattle/Tacoma Intl Airport were last updated today.

How many operators does momondo search for flights to Seattle/Tacoma Intl Airport?

As of October 2025, there are 18 operators available to choose from for flights to Seattle/Tacoma Intl Airport.

How old do you have to be to fly to Seattle/Tacoma Intl Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Leavenworth

Lynnwood

Marysville

Tacoma

SeaTac

Kirkland

Olympia

Ocean Shores

Redmond

Shoreline

Ellensburg

Gig Harbor

Renton

Mukilteo

Centralia

Cle Elum

Federal Way

Poulsbo

Shelton

Lakewood

Why use momondo?

Why should I use momondo to find a flight deal to Seattle?

Finding the right flight to Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognizable airlines. These options can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seattle quick and easy, saving you time and money.

Can I find flights to Seattle with flexible booking policies on momondo?

Yes. All flights to Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights to Seattle?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as filter your options to help you make an informed choice when booking flights to Seattle.

I’m not ready to book a flight to Seattle right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle and alert you when they change.