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Cheap flights from Seattle to Quebec from C$ 204

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — YUL
3 Sep — 10 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Quebec

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Quebec
Explore the most affordable flight options available from Seattle to Quebec. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 August 2026.

Wed 23/97:35 p.m.
SEA
-
YOW
1 stop7h 00m
WestJet
Thu 24/912:25 p.m.
YOW
-
SEA
2 stops9h 20m
WestJet
Deal found 31/7C$ 487
Thu 27/87:35 p.m.
SEA
-
YUL
1 stop8h 30m
Multiple Airlines
Wed 2/95:00 p.m.
YUL
-
SEA
1 stop8h 42m
Multiple Airlines
Deal found 2/8C$ 501
Wed 9/97:35 p.m.
SEA
-
YOW
1 stop7h 00m
WestJet
Sat 19/912:25 p.m.
YOW
-
SEA
2 stops9h 20m
WestJet
Deal found 2/8C$ 501
Thu 27/87:20 p.m.
SEA
-
YUL
2 stops8h 50m
Air Canada
Wed 2/99:00 a.m.
YUL
-
SEA
2 stops12h 32m
Air Canada
Deal found 2/8C$ 510
Mon 21/97:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Thu 24/96:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 31/7C$ 518
Thu 1/107:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Wed 7/106:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 31/7C$ 519
Thu 1/1010:30 a.m.
SEA
-
YUL
2 stops10h 55m
WestJet
Sun 4/106:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 2/8C$ 522
Thu 8/107:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Sun 11/107:15 a.m.
YUL
-
SEA
1 stop14h 30m
WestJet
Deal found 30/7C$ 524
Fri 11/97:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Mon 14/98:00 p.m.
YUL
-
SEA
1 stop16h 40m
WestJet
Deal found 31/7C$ 525
Sun 4/107:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Sat 10/107:15 a.m.
YUL
-
SEA
1 stop14h 30m
WestJet
Deal found 31/7C$ 526
Tue 15/97:35 p.m.
SEA
-
YOW
1 stop7h 00m
WestJet
Sat 26/912:25 p.m.
YOW
-
SEA
2 stops9h 20m
WestJet
Deal found 31/7C$ 526
Thu 1/107:35 p.m.
SEA
-
YUL
1 stop8h 30m
WestJet
Thu 8/106:45 a.m.
YUL
-
SEA
2 stops15h 00m
WestJet
Deal found 31/7C$ 528

Find flight deals from Seattle to Quebec

Keep the following information in mind while searching for Seattle to Quebec flight deals. Data was last updated 4 August 2026.

Round-trip from

C$ 487

One-way from

C$ 204

Popular in

June

Cheapest in

March

Average price

C$ 851
WestJet
  • WestJet
  • 23/9-24/9
  • 3 total stops
  • 16h 20m total
  • Seattle to Quebec
Search Deals
WestJet
  • WestJet
  • 1/10
  • 1 total stop
  • 7h 00m total
  • Seattle to Quebec
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 228 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Quebec 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 4 August 2026.
Use the filters below to find and compare flights from Seattle to Quebec that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Fri 16/10

10:30 a.m.-12:25 a.m.

2 stops10h 55m

Montreal Pierre Elliott Trudeau Intl

Sun 18/10

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

2 stops15h 00m

C$ 522
Quickest round-trip

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 15/9

7:35 p.m.-5:35 a.m.

1 stop7h 00m

Ottawa

Sat 26/9

1:20 p.m.-6:45 p.m.

1 stop8h 25m

C$ 547

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Tue 15/9

10:30 a.m.-12:30 p.m.

2 stops23h 00m

Ottawa

Sun 20/9

12:25 p.m.-9:40 a.m.

2 stops24h 15m

C$ 576

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Sun 30/8

7:00 a.m.-5:15 p.m.

1 stop7h 15m

Ottawa

Sun 6/9

1:20 p.m.-6:45 p.m.

1 stop8h 25m

C$ 608

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Fri 21/8

7:00 a.m.-11:35 a.m.

2 stops25h 35m

Ottawa

Tue 25/8

12:25 p.m.-9:40 a.m.

2 stops24h 15m

C$ 613

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Tue 1/9

5:13 p.m.-10:40 a.m.

1 stop14h 27m

Montreal Pierre Elliott Trudeau Intl

Tue 8/9

6:00 p.m.-10:47 p.m.

1 stop7h 47m

C$ 616

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Tue 18/8

5:13 p.m.-10:40 a.m.

1 stop14h 27m

Montreal Pierre Elliott Trudeau Intl

Wed 26/8

11:23 a.m.-6:41 p.m.

1 stop10h 18m

C$ 623

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Sat 17/10

10:48 p.m.-1:09 p.m.

1 stop11h 21m

Montreal Pierre Elliott Trudeau Intl

Wed 21/10

1:30 p.m.-10:42 p.m.

2 stops12h 12m

C$ 639

SeattleOttawa

SEA - YOW

SEAYOW

Seattle/Tacoma Intl

Fri 4/9

7:00 a.m.-5:15 p.m.

1 stop7h 15m

Ottawa

Mon 7/9

7:20 a.m.-9:40 a.m.

1 stop29h 20m

C$ 644

SeattleMontreal

SEA - YUL

SEAYUL

Seattle/Tacoma Intl

Wed 19/8

9:10 a.m.-11:52 p.m.

1 stop11h 42m

Montreal Pierre Elliott Trudeau Intl

Sun 23/8

7:00 a.m.-4:44 p.m.

1 stop12h 44m

C$ 657

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/8

Showing 1-10 of 56 resultsSorted by cheapest first
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Best time to book a flight from Seattle to Quebec

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

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

Currently, March is the cheapest month in which you can book a flight from Seattle to Quebec (average of C$ 540). Flying from Seattle to Quebec in June is currently the most expensive (average of C$ 1,123). 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 Seattle to Quebec?

Airfare is below average for this route at the moment.
Seattle to Quebec flights typically cost between C$ 640 and C$ 1,011 in August.
The cheapest round-trip price found within the last 5 days was C$ 501 on Multiple Airlines (27 Aug-2 Sep).

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

The price you pay for your flight from Seattle to Quebec may vary depending on when you book. For the best chance of a lower fare, look to book 63 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 Seattle to Quebec. 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 from for flights from Seattle to Quebec?

    Located just 18.4 km from the city centre, Seattle/Tacoma Intl (SEA) is the airport most travellers will use when flying to Quebec from Seattle.

  • How long is the flight from Seattle to Quebec?

    A quick flight from Seattle to Quebec can take about 10h 55m. WestJet provides one of the quickest options available for as low as C$ 522. Airlines will cover a distance of 3663 km. This flight may include one or multiple stops.

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

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as C$ 156. Users have also found prices from C$ 262 and C$ 300 on Air Canada and United Airlines, respectively.

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

    The most popular flight routes from Seattle to Quebec are Seattle/Tacoma Intl - Montreal Pierre Elliott Trudeau Intl, Seattle/Tacoma Intl - Québec City and Seattle/Tacoma Intl - Ottawa.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Seattle to Quebec (average of C$ 540). Flying from Seattle to Quebec in June is currently the most expensive (average of C$ 1,123). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Seattle to Quebec

See prices for flight routes from nearby airports that may be better suited for you.
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Portland to Williams Lake flights
Spokane to Winnipeg flights
Walla Walla to Pierre Elliott Trudeau Intl flights
Seattle to Kamloops flights
Spokane to Edmonton flights
Spokane to Halifax flights

Fly with Cheapflights

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

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Quebec from Seattle.

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

Need flexible booking options for your flight to Quebec from Seattle? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Not ready to book yet? You can track prices for flights from Seattle to Quebec on Cheapflights with our Price Alert feature and get notified when better prices are available.

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