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Cheap flights from St. Louis to Québec City from C$ 379

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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YQB
9 Jul — 16 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from St. Louis to Québec City

Enter your travel dates to find the best prices.

Cheapest flights from St. Louis to Québec City
Explore the most affordable flight options available from St. Louis to Québec City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 June 2026.

Mon 10/88:07 p.m.
STL
-
YQB
1 stop16h 08m
American Airlines
Wed 12/81:56 p.m.
YQB
-
STL
1 stop11h 18m
American Airlines
Deal found 4/6C$ 810
Sun 6/98:55 a.m.
STL
-
YQB
1 stop6h 06m
Air Canada
Thu 10/91:05 p.m.
YQB
-
STL
1 stop6h 36m
Air Canada
Deal found 8/6C$ 827
Tue 30/67:51 p.m.
STL
-
YQB
2 stops16h 18m
American Airlines
Wed 8/71:55 p.m.
YQB
-
STL
1 stop11h 21m
American Airlines
Deal found 4/6C$ 906
Fri 3/76:16 p.m.
STL
-
YQB
1 stop17h 47m
American Airlines
Wed 8/71:55 p.m.
YQB
-
STL
1 stop11h 21m
American Airlines
Deal found 4/6C$ 954
Fri 10/76:00 a.m.
STL
-
YQB
1 stop7h 08m
United Airlines
Tue 14/74:55 p.m.
YQB
-
STL
1 stop7h 41m
United Airlines
Deal found 7/6C$ 978
Fri 25/124:15 p.m.
STL
-
YQB
1 stop5h 13m
Air Canada
Wed 30/1210:20 a.m.
YQB
-
STL
1 stop6h 10m
Air Canada
Deal found 7/6C$ 980

Find flight deals from St. Louis to Québec City

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Québec City (YQB). 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 9 June 2026.

Round-trip from

C$ 810

One-way from

C$ 379
American Airlines
  • American Airlines
  • 10/8-12/8
  • 2 total stops
  • 27h 26m total
  • St. Louis to Québec City
Search Deals
11/7
  • 11/7
  • 3 total stops
  • 20h 30m total
  • St. Louis to Québec City
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Québec City 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 9 June 2026.
Use the filters below to find and compare flights from St. Louis to Québec City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sun 6/9

8:55 a.m.-4:01 p.m.

1 stop6h 06m

Québec City

Thu 10/9

1:05 p.m.-6:41 p.m.

1 stop6h 36m

C$ 827

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Tue 30/6

7:51 p.m.-1:09 p.m.

2 stops16h 18m

Québec City

Wed 8/7

1:55 p.m.-12:16 a.m.

1 stop11h 21m

C$ 906

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Fri 3/7

6:16 p.m.-1:03 p.m.

1 stop17h 47m

Québec City

Wed 8/7

1:55 p.m.-12:16 a.m.

1 stop11h 21m

C$ 954

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Fri 14/8

6:00 a.m.-3:16 p.m.

1 stop8h 16m

Québec City

Mon 17/8

1:56 p.m.-8:23 a.m.

1 stop19h 27m

C$ 968

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Fri 10/7

6:00 a.m.-2:08 p.m.

1 stop7h 08m

Québec City

Tue 14/7

4:55 p.m.-11:36 p.m.

1 stop7h 41m

C$ 978

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Fri 10/7

6:00 a.m.-4:00 p.m.

2 stops9h 00m

Québec City

Tue 14/7

2:45 p.m.-6:42 p.m.

1 stop4h 57m

C$ 982

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sun 26/7

6:01 a.m.-4:00 p.m.

1 stop8h 59m

Québec City

Wed 29/7

5:35 a.m.-2:02 p.m.

2 stops9h 27m

C$ 987

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sun 26/7

9:20 a.m.-10:41 p.m.

2 stops12h 21m

Québec City

Wed 29/7

6:00 a.m.-3:46 p.m.

2 stops10h 46m

C$ 999
Cheapest one-way

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sat 11/7

4:57 p.m.-2:27 p.m.

3 stops20h 30m

C$ 379

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Fri 14/8

12:10 p.m.-7:41 p.m.

1 stop6h 31m

C$ 392

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/6

Showing 1-10 of 18 resultsSorted by cheapest first
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Best time to book a flight from St. Louis to Québec City

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

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Québec City. 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 St. Louis to Québec City?

    There are many flights that can get you from St. Louis to Québec City in 6h 06m. Fly via Air Canada or American Airlines to get the fastest option. The distance between St. Louis and Québec City is about 1782 km. This flight may include one or multiple stops.

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

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

  • How can I find direct flights from St. Louis to Québec City?

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

  • Can I find deals for business class flights from St. Louis to Québec City?

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

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Why should you use Cheapflights to find cheap flight tickets from St. Louis to Québec City?

Cheapflights helps you find that perfect flight to Québec City from St. Louis by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from St. Louis to Québec City with no change fees?

Yes, we can. To see specific flights from St. Louis to Québec City with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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