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Cheap flights from Canada to Seattle from C$ 159

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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — SEA
18 May — 25 May1
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 18 April 2026.

Thu 21/55:50 p.m.
YYC
-
SEA
Nonstop1h 55m
WestJet
Sun 24/510:30 a.m.
SEA
-
YYC
Nonstop1h 40m
WestJet
Deal found 14/4C$ 268
Fri 8/55:50 p.m.
YYC
-
SEA
Nonstop1h 55m
WestJet
Sat 16/57:35 p.m.
SEA
-
YYC
Nonstop1h 40m
WestJet
Deal found 14/4C$ 270
Tue 2/61:15 p.m.
YVR
-
SEA
Nonstop1h 08m
Air Canada
Tue 9/610:45 a.m.
SEA
-
YVR
Nonstop1h 15m
Air Canada
Deal found 17/4C$ 271
Wed 29/45:50 p.m.
YYC
-
SEA
Nonstop1h 55m
WestJet
Wed 13/57:35 p.m.
SEA
-
YYC
Nonstop1h 40m
WestJet
Deal found 14/4C$ 272
Wed 29/48:45 a.m.
YYC
-
SEA
Nonstop1h 55m
WestJet
Sun 3/510:30 a.m.
SEA
-
YYC
Nonstop1h 40m
WestJet
Deal found 14/4C$ 274
Thu 7/51:45 p.m.
YVR
-
SEA
Nonstop1h 02m
Alaska Airlines
Sun 10/511:12 p.m.
SEA
-
YVR
Nonstop1h 00m
Alaska Airlines
Deal found 16/4C$ 279
Thu 14/58:45 a.m.
YYC
-
SEA
Nonstop1h 55m
WestJet
Tue 19/510:30 a.m.
SEA
-
YYC
Nonstop1h 40m
WestJet
Deal found 15/4C$ 279
Sat 30/59:00 a.m.
YVR
-
SEA
Nonstop1h 05m
Air Canada
Sat 6/65:45 a.m.
SEA
-
YVR
Nonstop1h 15m
Air Canada
Deal found 15/4C$ 280
Mon 4/56:00 a.m.
YVR
-
SEA
Nonstop1h 04m
Alaska Airlines
Tue 26/57:55 p.m.
SEA
-
YVR
Nonstop0h 58m
Alaska Airlines
Deal found 13/4C$ 282
Tue 19/55:50 p.m.
YYC
-
SEA
Nonstop1h 55m
WestJet
Tue 26/510:30 a.m.
SEA
-
YYC
Nonstop1h 40m
WestJet
Deal found 15/4C$ 282
Fri 1/510:30 a.m.
YVR
-
SEA
Nonstop1h 02m
Alaska Airlines
Sun 3/58:41 a.m.
SEA
-
YVR
Nonstop0h 59m
Alaska Airlines
Deal found 17/4C$ 283
Thu 28/58:45 a.m.
YYC
-
SEA
Nonstop1h 55m
WestJet
Thu 4/610:30 a.m.
SEA
-
YYC
Nonstop1h 40m
WestJet
Deal found 13/4C$ 283

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 18 April 2026.

Round-trip from

C$ 268

One-way from

C$ 159

Popular in

June

Cheapest in

February

Average price

C$ 547

Good round-trip deal

C$ 257 or less

Good one-way deal

C$ 263 or less
WestJet
  • WestJet
  • 21/5-24/5
  • Nonstop
  • 3h 35m total
  • Canada to Seattle
Search Deals
WestJet
  • WestJet
  • 2/5
  • 1 total stop
  • 4h 40m total
  • Canada to Seattle
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 18 April 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 28/5

11:50 a.m.-12:54 p.m.

Nonstop1h 04m

Seattle/Tacoma Intl

Thu 4/6

11:08 p.m.-12:07 a.m.

Nonstop0h 59m

C$ 291

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Tue 19/5

12:45 p.m.-6:45 p.m.

1 stop6h 00m

Seattle/Tacoma Intl

Fri 19/6

7:00 a.m.-11:45 a.m.

1 stop4h 45m

C$ 317

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Fri 29/5

11:45 a.m.-6:45 p.m.

1 stop7h 00m

Seattle/Tacoma Intl

Fri 5/6

10:30 a.m.-3:55 p.m.

1 stop5h 25m

C$ 319

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Sat 16/5

6:20 a.m.-7:41 a.m.

Nonstop1h 21m

Seattle/Tacoma Intl

Sun 17/5

9:40 p.m.-10:51 p.m.

Nonstop1h 11m

C$ 320

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Tue 12/5

9:00 a.m.-10:05 a.m.

Nonstop1h 05m

Seattle/Tacoma Intl

Thu 14/5

10:45 a.m.-12:00 p.m.

Nonstop1h 15m

C$ 322

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Sat 13/6

7:36 p.m.-8:57 p.m.

Nonstop1h 21m

Seattle/Tacoma Intl

Sun 14/6

9:42 p.m.-10:58 p.m.

Nonstop1h 16m

C$ 322

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Fri 5/6

12:09 p.m.-9:59 p.m.

1 stop9h 50m

Seattle/Tacoma Intl

Tue 9/6

2:36 p.m.-10:56 p.m.

1 stop8h 20m

C$ 330

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Fri 1/5

7:55 a.m.-8:58 a.m.

Nonstop1h 03m

Seattle/Tacoma Intl

Sun 3/5

8:41 a.m.-9:40 a.m.

Nonstop0h 59m

C$ 337

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Fri 1/5

6:00 a.m.-7:04 a.m.

Nonstop1h 04m

Seattle/Tacoma Intl

Mon 4/5

8:41 a.m.-9:40 a.m.

Nonstop0h 59m

C$ 337

VancouverSeattle

YVR - SEA

YVRSEA

Vancouver Intl

Thu 7/5

9:15 a.m.-6:45 p.m.

2 stops9h 30m

Seattle/Tacoma Intl

Sun 10/5

10:30 a.m.-3:55 p.m.

1 stop5h 25m

C$ 339

Flights are sorted by cheapest round-trip flights first.

Deals found on 13/4

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$ 86). Flying from Canada to Seattle in December is currently the most expensive (average of C$ 752). 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 18 April 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 afternoon, which can drop the price by up to 48% versus a flight at noon.

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 11 April 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.

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 18 April 2026.

The most flights from CA0 to SEA are scheduled on a Thursday (5 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (3 on average).

How often are flights from Canada to Seattle delayed?

About 18% of weekly flights between Canada and Seattle have experienced delays in the past year, with the average delay time being 128 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 13% of flights being delayed.

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 18 April 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
12,255 reviews
Check prices

Overall

7.9

Food

7.0

Crew

8.5

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Alaska Airlines
7.9
Good
12,255 reviews
Alaska Airlines
7.9
Good
12,255 reviews
Check prices

Overall

7.9

Food

7.0

Crew

8.5

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Delta
7.9
Good
8,421 reviews
Alaska Airlines
7.9
Good
12,255 reviews
Check prices

Overall

7.9

Food

7.0

Crew

8.5

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
United Airlines
7.4
Good
9,604 reviews
Alaska Airlines
7.9
Good
12,255 reviews
Check prices

Overall

7.9

Food

7.0

Crew

8.5

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
WestJet
7.2
Good
3,321 reviews
Alaska Airlines
7.9
Good
12,255 reviews
Check prices

Overall

7.9

Food

7.0

Crew

8.5

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Air Canada
7.1
Good
10,934 reviews
Alaska Airlines
7.9
Good
12,255 reviews
Check prices

Overall

7.9

Food

7.0

Crew

8.5

Entertainment

7.0

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well

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, WestJet, and Delta fly from Canada to Seattle in about 1h 04m. The time it takes to get you to your destination can typically vary by up to 4h 56m. 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$ 85. Alaska Airlines flights start at C$ 91 while deals on Air Canada start at C$ 102 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 Hamilton - 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: Air Tahiti Nui (93%), Alaska Airlines (70%), Hawaiian Airlines( 70%).

  • What are the cheapest flights from Canada to Seattle?

    Looking at all options, your cheapest flight can be booked for C$ 220. While the most popular route (Toronto Pearson Intl - Seattle/Tacoma Intl) can be booked for C$ 386 on average, our data indicates C$ 466 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$ 86). Flying from Canada to Seattle in December is currently the most expensive (average of C$ 752). 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
Leavenworth
Mukilteo
Tacoma
Kent
Bothell
Cashmere
Tukwila
Olympia
Renton
Marysville
Lynnwood
Kirkland

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 7 airlines flying from Canada to Seattle

Discover the top 7 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 18 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 121AverageC$ 483FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
WestJetCheapestC$ 182AverageC$ 419FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Alaska AirlinesCheapestC$ 194AverageC$ 372FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
DeltaCheapestC$ 218AverageC$ 474FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 249AverageC$ 626FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapestC$ 256AverageC$ 554FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Hawaiian AirlinesCheapestC$ 316AverageC$ 549FlexibilityNo cancel feeOn-time85%
Search Hawaiian 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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