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Cheap flights from Canada to Seattle from C$ 161

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SEA
19 Jul — 26 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Canada to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Canada to Seattle
Explore the most affordable flight options available from Canada to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 June 2026.

Fri 18/91:40 p.m.
YVR
-
SEA
1 stop5h 05m
WestJet
Sun 20/910:30 a.m.
SEA
-
YVR
2 stops8h 40m
WestJet
Deal found 15/6C$ 350
Fri 2/105:00 a.m.
YVR
-
SEA
1 stop4h 40m
WestJet
Sat 3/1010:30 a.m.
SEA
-
YVR
1 stop5h 25m
WestJet
Deal found 18/6C$ 357
Tue 15/95:00 a.m.
YVR
-
SEA
1 stop4h 40m
WestJet
Thu 17/910:30 a.m.
SEA
-
YVR
1 stop6h 20m
WestJet
Deal found 17/6C$ 360
Thu 2/76:00 a.m.
YVR
-
SEA
Nonstop1h 07m
Alaska Airlines
Sun 5/711:00 p.m.
SEA
-
YVR
Nonstop0h 59m
Alaska Airlines
Deal found 15/6C$ 364
Mon 14/912:45 p.m.
YVR
-
SEA
1 stop6h 00m
WestJet
Sat 26/910:30 a.m.
SEA
-
YVR
1 stop7h 10m
WestJet
Deal found 14/6C$ 366
Wed 23/91:40 p.m.
YVR
-
SEA
1 stop5h 05m
WestJet
Fri 2/107:35 p.m.
SEA
-
YVR
1 stop4h 40m
WestJet
Deal found 18/6C$ 367
Sat 11/75:00 a.m.
YVR
-
SEA
1 stop4h 40m
WestJet
Sat 18/77:00 a.m.
SEA
-
YVR
2 stops6h 35m
WestJet
Deal found 17/6C$ 370
Wed 15/75:00 a.m.
YVR
-
SEA
1 stop4h 40m
WestJet
Wed 22/710:30 a.m.
SEA
-
YVR
1 stop7h 10m
WestJet
Deal found 14/6C$ 371
Mon 14/99:15 a.m.
YVR
-
SEA
2 stops9h 30m
WestJet
Mon 28/97:35 p.m.
SEA
-
YVR
1 stop4h 40m
WestJet
Deal found 17/6C$ 374
Sun 6/121:25 p.m.
YYC
-
SEA
Nonstop0h 55m
Multiple Airlines
Tue 8/125:57 p.m.
SEA
-
YYC
Nonstop1h 30m
Multiple Airlines
Deal found 18/6C$ 376
Fri 16/108:45 a.m.
YYC
-
SEA
Nonstop1h 55m
Multiple Airlines
Sun 25/108:05 a.m.
SEA
-
YYC
Nonstop1h 38m
Multiple Airlines
Deal found 17/6C$ 378
Thu 24/98:45 a.m.
YYC
-
SEA
Nonstop1h 55m
Multiple Airlines
Sat 26/98:10 p.m.
SEA
-
YYC
Nonstop1h 36m
Multiple Airlines
Deal found 18/6C$ 380

Find flight deals from Canada to Seattle

Keep the following information in mind while searching for Canada to Seattle flight deals. Data was last updated 19 June 2026.

Round-trip from

C$ 350

One-way from

C$ 161

Popular in

June

Cheapest in

February

Average price

C$ 665

Good round-trip deal

C$ 305 or less

Good one-way deal

C$ 270 or less
WestJet
  • WestJet
  • 18/9-20/9
  • 3 total stops
  • 13h 45m total
  • Canada to Seattle
Search Deals
Air Canada
  • Air Canada
  • 11/9
  • Nonstop
  • 1h 07m total
  • Canada to Seattle
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (C$ 108 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Canada to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Canada to Seattle/Tacoma Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Canada to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 19 June 2026.
Use the filters below to find and compare flights from Canada to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Thu 29/10

1:10 p.m.-2:16 p.m.

Nonstop1h 06m

Seattle/Tacoma Intl

Tue 24/11

3:53 p.m.-6:51 p.m.

Nonstop1h 58m

C$ 385

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Fri 30/10

5:25 p.m.-6:31 p.m.

Nonstop1h 06m

Seattle/Tacoma Intl

Tue 24/11

8:41 a.m.-11:38 a.m.

Nonstop1h 57m

C$ 385

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Sat 10/10

5:25 p.m.-6:31 p.m.

Nonstop1h 06m

Seattle/Tacoma Intl

Sat 17/10

9:53 a.m.-10:52 a.m.

Nonstop0h 59m

C$ 385

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Wed 1/7

11:18 a.m.-12:38 p.m.

Nonstop1h 20m

Seattle/Tacoma Intl

Mon 21/9

9:07 a.m.-10:17 a.m.

Nonstop1h 10m

C$ 395

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Fri 2/10

7:20 p.m.-1:15 a.m.

1 stop5h 55m

Seattle/Tacoma Intl

Sat 3/10

5:40 a.m.-6:47 a.m.

Nonstop1h 07m

C$ 400
Quickest round-trip

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Fri 3/7

8:05 a.m.-9:08 a.m.

Nonstop1h 03m

Seattle/Tacoma Intl

Tue 7/7

11:00 p.m.-11:59 p.m.

Nonstop0h 59m

C$ 404

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Wed 12/8

6:00 a.m.-7:07 a.m.

Nonstop1h 07m

Seattle/Tacoma Intl

Sun 16/8

11:00 p.m.-11:59 p.m.

Nonstop0h 59m

C$ 404

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Thu 2/7

6:00 a.m.-7:07 a.m.

Nonstop1h 07m

Seattle/Tacoma Intl

Sun 5/7

11:00 p.m.-11:59 p.m.

Nonstop0h 59m

C$ 404

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Fri 30/10

3:00 p.m.-9:56 p.m.

1 stop6h 56m

Seattle/Tacoma Intl

Mon 23/11

7:05 p.m.-10:09 p.m.

Nonstop2h 04m

C$ 407

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Sun 13/12

7:35 p.m.-6:47 p.m.

Nonstop0h 12m

Seattle/Tacoma Intl

Wed 16/12

9:20 a.m.-12:28 p.m.

Nonstop2h 08m

C$ 417

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/6

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Canada to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Canada 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 Insights

Everything you need to know about your flight from Canada to Seattle

What is the cheapest month to book a flight from Canada to Seattle?

Currently, January is the cheapest month in which you can book a flight from Canada to Seattle (average of C$ 89). Flying from Canada to Seattle in April is currently the most expensive (average of C$ 891). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CA to SEA?

Find hourly flight availability from Canada to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 June 2026.

When flying from Canada to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 50% versus a flight at noon.

Weekly flight availability from Canada to Seattle

Explore weekly flight availability from Canada to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 19 June 2026.

The most flights from CA0 to SEA are scheduled on a Tuesday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

How often are flights from Canada to Seattle delayed?

About 19% of weekly flights between Canada and Seattle have experienced delays in the past year, with the average delay time being 127 minutes.

What is the most punctual flight time for Canada to Seattle flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Canada to Seattle flights?

Over the past year, Alaska Airlines has had the lowest number of delays on this route, with just 14% of flights being delayed.

How far ahead should I book a flight from Canada to Seattle?

Booking 55 days in advance of your planned departure date is, on average, the best time to get cheap flights from Canada to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest day to fly from Canada to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Canada to Seattle. Price data was last updated on 13 June 2026.

Travelers seeking maximum savings on their Canada to Seattle flight should consider departing on Friday evenings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service 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 19 June 2026.
Check out reviews from past customers who have flown with Alaska Airlines,Delta, andUnited Airlines from Canada to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,541 reviews
Check prices

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

7.9

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
12,541 reviews
Alaska Airlines
7.9
Good
12,541 reviews
Check prices

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

7.9

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.
Delta
7.8
Good
8,419 reviews
Alaska Airlines
7.9
Good
12,541 reviews
Check prices

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

7.9

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
9,860 reviews
Alaska Airlines
7.9
Good
12,541 reviews
Check prices

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

7.9

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.
WestJet
7.2
Good
3,375 reviews
Alaska Airlines
7.9
Good
12,541 reviews
Check prices

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

7.9

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.
Air Canada
7.1
Good
11,221 reviews
Alaska Airlines
7.9
Good
12,541 reviews
Check prices

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Overall

7.9

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.

Related info for your journey

Find useful and relevant information for your journey from Canada to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from Canada?

    If you book a flight to Seattle from Canada, you will be flying to Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 18.4 km from the centre of Seattle.

  • How long is the flight from Canada to Seattle?

    Airlines like Alaska Airlines, Delta, and WestJet fly from Canada to Seattle in about 1h 06m. The time it takes to get you to your destination can typically vary by up to 6h 59m. Airlines will cover a distance of 204 km. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Canada to Seattle one-way?

    To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at C$ 88. Alaska Airlines flights start at C$ 105 while deals on Air Canada start at C$ 106 one-way.

  • What are the most popular routes from Canada to Seattle?

    Most travellers choose Toronto Pearson Intl - Seattle/Tacoma Intl, Vancouver Intl - Seattle/Tacoma Intl or Edmonton - Seattle/Tacoma Intl when deciding on the best route from Canada to Seattle.

  • What are the most reliable airlines from Canada to Seattle?

    Before booking your flight to Seattle from Canada, check out the most reliable airlines to get you to your destination on time: Hawaiian Airlines (100%), Alaska Airlines (95%), Qatar Airways( 67%).

  • What are the cheapest flights from Canada to Seattle?

    Looking at all options, your cheapest flight can be booked for C$ 256. While the most popular route (Toronto Pearson Intl - Seattle/Tacoma Intl) can be booked for C$ 470 on average, our data indicates C$ 665 when flying from Canada to Seattle.

  • Can I find deals for flights from Canada to Seattle that include hotel bookings?

    Yes. In addition to deals on Canada to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Canada to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Canada to Seattle.

  • Can I find deals for business class flights from Canada to Seattle?

    Yes. Cheapflights offers flight deals from Canada to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Canada to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Canada to Seattle (average of C$ 89). Flying from Canada to Seattle in April is currently the most expensive (average of C$ 891). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Kent
Leavenworth
Mukilteo
Tacoma
Renton
Cashmere
Tukwila
Olympia
Marysville
Kirkland

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Canada to Seattle

Discover the top 6 airlines that operate flights from Canada to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 19 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 125AverageC$ 523FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Harbour Air SeaplanesCheapestC$ 152AverageC$ 307FlexibilityNo cancel feeOn-timeN/A
Search Harbour Air Seaplanes flights
WestJetCheapestC$ 160AverageC$ 440FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Alaska AirlinesCheapestC$ 200AverageC$ 393FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
DeltaCheapestC$ 225AverageC$ 496FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 257AverageC$ 755FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Canada to Seattle?

When you search for this flight from Canada to Seattle, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Canada to Seattle?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Canada to Seattle.

Can Cheapflights find flights from Canada to Seattle with no change fees?

Certainly. Search results for flights to Seattle from Canada shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Canada to Seattle become cheaper?

Of course! You can now track prices for flights from Canada to Seattle and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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