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$198+ Cheap flights from Quebec to Seattle (SEA)

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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — SEA
Jul 24 — Jul 311
Fri 7/24
Fri 7/31
1 adult, Economy
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Cheap flight deals from Quebec to Seattle

Cheapest flights from Quebec to Seattle
Explore the most affordable flight options available from Quebec to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 24, 2026.

This oojo deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:45 am
YUL
-
SEA
2 stops15h 00m
WestJet
Fri 10/97:35 pm
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 6/21$335
This oojo deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/276:45 am
YUL
-
SEA
2 stops15h 00m
WestJet
Sun 10/47:35 pm
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 6/19$336
This FlightHub deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:45 am
YUL
-
SEA
2 stops15h 00m
WestJet
Mon 9/147:35 pm
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 6/21$340
This oojo deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:45 am
YUL
-
SEA
2 stops15h 00m
WestJet
Mon 9/2110:30 am
SEA
-
YUL
2 stops10h 55m
WestJet
Deal found 6/21$341
This Justfly.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:45 am
YUL
-
SEA
2 stops15h 00m
WestJet
Sun 9/2710:30 am
SEA
-
YUL
2 stops10h 55m
WestJet
Deal found 6/19$342
This oojo deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:45 am
YUL
-
SEA
2 stops15h 00m
WestJet
Fri 8/287:35 pm
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 6/22$353
This FlightHub deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:45 am
YUL
-
SEA
2 stops15h 00m
WestJet
Wed 10/1410:30 am
SEA
-
YUL
2 stops10h 55m
WestJet
Deal found 6/19$354
This Justfly.com deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:45 am
YUL
-
SEA
2 stops15h 00m
WestJet
Thu 9/107:35 pm
SEA
-
YUL
1 stop8h 30m
WestJet
Deal found 6/22$356
This oojo deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/301:20 pm
YOW
-
SEA
1 stop8h 25m
WestJet
Sun 10/47:35 pm
SEA
-
YOW
1 stop7h 00m
WestJet
Deal found 6/23$373
This oojo deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/251:20 pm
YOW
-
SEA
1 stop8h 25m
WestJet
Wed 9/307:35 pm
SEA
-
YOW
1 stop7h 00m
WestJet
Deal found 6/22$375
This oojo deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/101:20 pm
YOW
-
SEA
1 stop8h 25m
WestJet
Sat 8/157:35 pm
SEA
-
YOW
1 stop7h 00m
WestJet
Deal found 6/23$378
This oojo deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/176:15 pm
YOW
-
SEA
2 stops27h 30m
WestJet
Fri 7/247:35 pm
SEA
-
YOW
1 stop7h 00m
WestJet
Deal found 6/22$389

Find flight deals from Quebec to Seattle

Keep the following information in mind while searching for Quebec to Seattle flight deals. Data was last updated June 24, 2026.

Round-trip from

$335
(oojo)

One-way from

$198
(oojo)

Popular in

April

Cheapest in

August

Average price

$575
From Quebec to Seattle/Tacoma Intl
Search Deals
One-way flight from Quebec to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($79 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Quebec 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 2,558,603 searches. Data last updated June 24, 2026.
Use the filters below to find and compare flights from Quebec to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Wed 8/12

12:47 pm-10:05 pm

1 stop12h 18m

Seattle/Tacoma Intl

Wed 8/19

11:56 am-11:52 pm

1 stop8h 56m

$376

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Wed 7/15

5:30 pm-9:00 pm

1 stop30h 30m

Seattle/Tacoma Intl

Sat 8/15

7:35 pm-7:05 am

1 stop8h 30m

$378

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Wed 8/5

12:44 pm-11:57 pm

1 stop14h 13m

Seattle/Tacoma Intl

Wed 8/12

9:10 am-11:52 pm

1 stop11h 42m

$394

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Thu 8/13

12:44 pm-11:57 pm

1 stop14h 13m

Seattle/Tacoma Intl

Wed 8/19

9:10 am-11:52 pm

1 stop11h 42m

$394

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Wed 8/19

6:35 pm-9:59 am

1 stop18h 24m

Seattle/Tacoma Intl

Mon 8/24

3:00 pm-7:10 am

2 stops13h 10m

$399

OttawaSeattle

YOW - SEA

YOWSEA

Ottawa

Wed 7/15

1:20 pm-9:40 am

1 stop23h 20m

Seattle/Tacoma Intl

Tue 7/21

7:00 am-5:15 pm

1 stop7h 15m

$411

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Sat 8/22

12:47 pm-10:05 pm

1 stop12h 18m

Seattle/Tacoma Intl

Sun 8/30

10:35 pm-1:41 pm

1 stop12h 06m

$432

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Fri 9/4

9:45 am-4:07 pm

1 stop9h 22m

Seattle/Tacoma Intl

Wed 9/30

8:29 pm-8:16 am

1 stop8h 47m

$449

Québec CitySeattle

YQB - SEA

YQBSEA

Québec City

Tue 8/4

7:30 pm-9:40 am

1 stop17h 10m

Seattle/Tacoma Intl

Fri 8/14

10:30 am-6:40 pm

1 stop29h 10m

$453

MontrealSeattle

YUL - SEA

YULSEA

Montreal Pierre Elliott Trudeau Intl

Sat 6/27

6:35 pm-1:13 am

1 stop9h 38m

Seattle/Tacoma Intl

Sat 7/4

7:20 pm-7:10 am

1 stop8h 50m

$468

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/20

Showing 1-10 of 43 resultsSorted by cheapest first
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Best time to book a flight from Quebec to Seattle

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

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

Currently, March is the cheapest month in which you can book a flight from Quebec to Seattle (average of $200). Flying from Quebec to Seattle in February is currently the most expensive (average of $322). 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.

How much does it cost to fly round-trip from Quebec to Seattle?

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

The price you pay for your flight from Quebec to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 45 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Related info for your journey

Find useful and relevant information for your journey from Quebec 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 Quebec?

    If you book a flight to Seattle from Quebec, you will be flying to Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle.

  • How long is the flight from Quebec to Seattle?

    Departing from Quebec to Seattle will take you 12h 18m. There are 2276 mi between Quebec and Seattle. Both multi-stop and nonstop flights can be found to your destination and back.

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

    One-way options have recently been found by users for as low as $179 on American Airlines. Other airlines that offer cheap prices include Air Canada from $180 and Delta from $196 one-way.

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

    While some choose either Ottawa - Seattle/Tacoma Intl or Québec City - Seattle/Tacoma Intl, Montreal Pierre Elliott Trudeau Intl - Seattle/Tacoma Intl is the most popular route from Quebec to Seattle.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Quebec 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 Quebec to Seattle?

    Currently, March is the cheapest month in which you can book a flight from Quebec to Seattle (average of $200). Flying from Quebec to Seattle in February is currently the most expensive (average of $322). 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

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Lacey
Leavenworth
Olympia
Ocean Shores
Renton
Edmonds
Snoqualmie
Tumwater
Tukwila
Kent
Lynnwood
Ellensburg
Fife
Marysville
Lakewood
Issaquah
Shoreline
Centralia

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 3 airlines flying from Quebec to Seattle

Discover the top 3 airlines that operate flights from Quebec 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 2,558,603 searches. Data last updated June 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$263Average$816FlexibilityNo cancel feeOn-time69%
WestJetCheapest$293Average$397FlexibilityNo cancel feeOn-time60%
Air CanadaCheapest$304Average$520FlexibilityNo cancel feeOn-time67%

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