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Cheap flights from Québec City to Seattle from C$ 339

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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
YQB — SEA
12 Jul — 19 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Québec City to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Québec City to Seattle
Explore the most affordable flight options available from Québec City to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2026.

Mon 6/77:30 p.m.
YQB
-
SEA
1 stop28h 30m
WestJet
Tue 14/77:00 a.m.
SEA
-
YQB
1 stop8h 40m
WestJet
Deal found 7/6C$ 493
Thu 13/87:30 p.m.
YQB
-
SEA
1 stop17h 10m
WestJet
Tue 25/87:00 a.m.
SEA
-
YQB
1 stop8h 40m
WestJet
Deal found 7/6C$ 606
Wed 26/81:56 p.m.
YQB
-
SEA
1 stop9h 56m
American Airlines
Mon 31/89:58 p.m.
SEA
-
YQB
1 stop12h 14m
American Airlines
Deal found 9/6C$ 616
Tue 11/81:56 p.m.
YQB
-
SEA
1 stop22h 33m
American Airlines
Wed 19/81:24 p.m.
SEA
-
YQB
1 stop20h 51m
American Airlines
Deal found 7/6C$ 637
Wed 12/81:56 p.m.
YQB
-
SEA
1 stop9h 56m
American Airlines
Wed 12/811:16 p.m.
SEA
-
YQB
2 stops10h 59m
American Airlines
Deal found 7/6C$ 644
Thu 13/87:30 p.m.
YQB
-
SEA
1 stop17h 10m
WestJet
Mon 24/87:35 p.m.
SEA
-
YQB
1 stop20h 05m
WestJet
Deal found 7/6C$ 648
Wed 22/71:55 p.m.
YQB
-
SEA
1 stop13h 57m
American Airlines
Tue 28/710:35 p.m.
SEA
-
YQB
1 stop13h 55m
American Airlines
Deal found 11/6C$ 650
Wed 12/81:56 p.m.
YQB
-
SEA
1 stop22h 33m
American Airlines
Thu 13/811:40 a.m.
SEA
-
YQB
2 stops22h 35m
American Airlines
Deal found 7/6C$ 651
Wed 12/83:56 p.m.
YQB
-
SEA
2 stops20h 33m
American Airlines
Sat 15/83:08 p.m.
SEA
-
YQB
2 stops19h 07m
American Airlines
Deal found 7/6C$ 652
Tue 4/84:12 p.m.
YQB
-
SEA
1 stop9h 44m
American Airlines
Fri 14/83:47 p.m.
SEA
-
YQB
1 stop20h 06m
American Airlines
Deal found 10/6C$ 655
Sun 9/81:47 p.m.
YQB
-
SEA
2 stops22h 42m
American Airlines
Wed 19/86:10 a.m.
SEA
-
YQB
2 stops30h 06m
American Airlines
Deal found 8/6C$ 658

Find flight deals from Québec City to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Québec City (YQB) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 12 June 2026.

Round-trip from

C$ 493

One-way from

C$ 339

Popular in

February

Cheapest in

July

Average price

C$ 820
WestJet
  • WestJet
  • 6/7-14/7
  • 2 total stops
  • 37h 10m total
  • Québec City to Seattle
Search Deals
American Airlines
  • American Airlines
  • 4/7
  • 1 total stop
  • 9h 44m total
  • Québec City to Seattle
Search Deals
Highest demand for flights based on searches. 29% potential increase in price (C$ 553 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 11% potential price decrease (C$ 141 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 Québec City 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 12 June 2026.
Use the filters below to find and compare flights from Québec City to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Québec CitySeattle

YQB - SEA

YQBSEA

Québec City

Tue 4/8

1:48 p.m.-9:35 p.m.

1 stop10h 47m

Seattle/Tacoma Intl

Tue 4/8

11:56 p.m.-3:16 p.m.

2 stops12h 20m

C$ 772

Québec CitySeattle

YQB - SEA

YQBSEA

Québec City

Wed 22/7

6:40 a.m.-7:07 a.m.

2 stops27h 27m

Seattle/Tacoma Intl

Tue 28/7

7:00 a.m.-6:40 p.m.

1 stop8h 40m

C$ 793
Quickest round-trip

Québec CitySeattle

YQB - SEA

YQBSEA

Québec City

Tue 22/9

1:40 p.m.-10:42 p.m.

2 stops12h 02m

Seattle/Tacoma Intl

Sat 26/9

7:20 p.m.-5:49 a.m.

1 stop7h 29m

C$ 821

Québec CitySeattle

YQB - SEA

YQBSEA

Québec City

Sat 31/10

6:00 a.m.-9:05 p.m.

1 stop18h 05m

Seattle/Tacoma Intl

Tue 3/11

10:45 p.m.-10:53 a.m.

1 stop9h 08m

C$ 830

Québec CitySeattle

YQB - SEA

YQBSEA

Québec City

Sat 31/10

10:50 a.m.-8:54 p.m.

2 stops13h 04m

Seattle/Tacoma Intl

Tue 3/11

7:05 p.m.-9:59 a.m.

2 stops11h 54m

C$ 844
Cheapest one-way

Québec CitySeattle

YQB - SEA

YQBSEA

Québec City

Fri 24/7

4:12 p.m.-11:42 a.m.

1 stop22h 30m

C$ 446

Québec CitySeattle

YQB - SEA

YQBSEA

Québec City

Fri 18/9

6:00 a.m.-9:15 p.m.

2 stops18h 15m

C$ 457

Québec CitySeattle

YQB - SEA

YQBSEA

Québec City

Sat 4/7

6:00 a.m.-1:13 a.m.

3 stops22h 13m

C$ 476

Québec CitySeattle

YQB - SEA

YQBSEA

Québec City

Mon 10/8

6:00 a.m.-11:10 p.m.

2 stops20h 10m

C$ 476
Quickest one-way

Québec CitySeattle

YQB - SEA

YQBSEA

Québec City

Fri 31/7

10:25 a.m.-9:07 p.m.

2 stops13h 42m

C$ 499

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/6

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

Best time to book a flight from Québec City to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Québec City 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.

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 12 June 2026.
Read reviews from past customers who have flown Air Canada from Québec City to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Air Canada
7.1
Good
11,168 reviews
Check prices

Entertainment

6.8

Overall

7.1

Crew

7.8

Comfort

7.1

Food

6.3

Boarding

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2026

YUL - LYS

The flight was cancelled. We were rebooked the next day on Air France but had a 12 hour layover in Paris. We lost 1 1/2 days of our vacation.
Air Canada
7.1
Good
11,168 reviews
Air Canada
7.1
Good
11,168 reviews
Check prices

Entertainment

6.8

Overall

7.1

Crew

7.8

Comfort

7.1

Food

6.3

Boarding

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2026

YUL - LYS

The flight was cancelled. We were rebooked the next day on Air France but had a 12 hour layover in Paris. We lost 1 1/2 days of our vacation.

Related info for your journey

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

  • How long is the flight from Québec City to Seattle?

    A quick flight from Québec City to Seattle can take about 10h 47m. American Airlines provides one of the quickest options available for as low as C$ 772. There are 3780 km between Québec City and Seattle. Both multi-stop and direct flights can be found to your destination and back.

  • What is the cheapest airline to fly from Québec City to Seattle round-trip?

    According to our current data, Air Canada (C$ 448), offers the cheapest pricing from Québec City to Seattle. Air Canada is 52% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

  • How can I find direct flights from Québec City to Seattle?

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

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

    Yes. Cheapflights offers flight deals from Québec City 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.

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 airline flying from Québec City to Seattle

Discover the top airline that operate flights from Québec City 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 12 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 448AverageC$ 828FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Québec City to Seattle?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Seattle from Québec City today with Cheapflights!

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Québec City to Seattle for you. Better yet — we are completely free to use.

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

Certainly. Search results for flights to Seattle from Québec City 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 Québec City to Seattle become cheaper?

Yes, Cheapflights offers price alerts on Québec City to Seattle flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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