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Cheap flights from St. Louis to Québec City from C$ 426

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 25/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YQB
26 Feb — 5 Mar1
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 27 January 2026.

Mon 31/812:10 p.m.
STL
-
YQB
1 stop6h 31m
Air Canada
Wed 2/91:05 p.m.
YQB
-
STL
1 stop6h 22m
Air Canada
Deal found 25/1C$ 920
Wed 19/85:46 p.m.
STL
-
YQB
1 stop18h 20m
American Airlines
Mon 24/84:00 p.m.
YQB
-
STL
1 stop8h 42m
American Airlines
Deal found 26/1C$ 931
Sun 15/24:05 p.m.
STL
-
YQB
1 stop5h 43m
Air Canada
Wed 18/29:15 a.m.
YQB
-
STL
2 stops7h 14m
Air Canada
Deal found 25/1C$ 945
Thu 6/81:01 p.m.
STL
-
YQB
1 stop21h 48m
American Airlines
Tue 11/812:29 p.m.
YQB
-
STL
1 stop20h 35m
American Airlines
Deal found 26/1C$ 946
Tue 24/21:11 p.m.
STL
-
YQB
2 stops8h 36m
United Airlines
Tue 3/311:49 a.m.
YQB
-
STL
2 stops10h 16m
United Airlines
Deal found 25/1C$ 952
Wed 2/98:00 p.m.
STL
-
YQB
1 stop16h 44m
American Airlines
Mon 7/94:00 p.m.
YQB
-
STL
1 stop21h 09m
American Airlines
Deal found 26/1C$ 960

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 27 January 2026.

Round-trip from

C$ 993

One-way from

C$ 426

Popular in

July

Cheapest in

October
Air Canada
  • Air Canada
  • 15/2-18/2
  • 2 total stops
  • 11h 17m total
  • St. Louis to Québec City
Search Deals
American Airlines
  • American Airlines
  • 25/7
  • 1 total stop
  • 5h 46m total
  • St. Louis to Québec City
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (C$ 17 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 32 potential savings vs. average RT price).
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 27 January 2026.
Use the filters below to find and compare flights from St. Louis to Québec City that are best for you.

Fly from

St. Louis

Fly to

Québec City

Route

Depart

Return

Price

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sun 15/2

4:05 p.m.-10:48 p.m.

1 stop5h 43m

Québec City

Wed 18/2

10:55 a.m.-3:29 p.m.

1 stop5h 34m

C$ 934

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Tue 24/2

1:11 p.m.-10:47 p.m.

2 stops8h 36m

Québec City

Tue 3/3

11:49 a.m.-9:05 p.m.

2 stops10h 16m

C$ 952

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Mon 9/2

4:05 p.m.-11:28 p.m.

1 stop6h 23m

Québec City

Thu 12/2

10:55 a.m.-3:29 p.m.

1 stop5h 34m

C$ 1,052

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Mon 9/2

9:57 a.m.-10:47 p.m.

2 stops11h 50m

Québec City

Thu 12/2

6:00 a.m.-2:29 p.m.

2 stops9h 29m

C$ 1,069

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sat 25/7

9:17 a.m.-5:13 p.m.

1 stop6h 56m

C$ 426

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Fri 29/5

6:00 a.m.-1:41 p.m.

1 stop6h 41m

C$ 426

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sat 25/7

8:55 a.m.-5:27 p.m.

2 stops7h 32m

C$ 442

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Fri 29/5

6:49 p.m.-4:00 p.m.

2 stops20h 11m

C$ 477

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Fri 29/5

5:45 p.m.-8:00 p.m.

3 stops25h 15m

C$ 601

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/1

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.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Québec City

How much does it cost to fly round-trip from St. Louis to Québec City?

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 5h 43m. Fly via Air Canada or United 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.

See more FAQs

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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.

Can Cheapflights notify me if prices for flights from St. Louis to Québec City become cheaper?

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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