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Cheap flights from St. Louis to Québec City from C$ 511

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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YQB
28 May — 4 Jun1
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 28 April 2026.

Wed 27/51:05 p.m.
STL
-
YQB
1 stop5h 40m
Air Canada
Thu 28/52:50 p.m.
YQB
-
STL
1 stop6h 35m
Air Canada
Deal found 24/4C$ 875
Mon 8/66:00 a.m.
STL
-
YQB
1 stop15h 41m
United Airlines
Mon 15/64:55 p.m.
YQB
-
STL
1 stop7h 40m
United Airlines
Deal found 24/4C$ 886
Mon 19/1012:10 p.m.
STL
-
YQB
1 stop6h 36m
Air Canada
Sat 31/1010:20 a.m.
YQB
-
STL
1 stop6h 10m
Air Canada
Deal found 23/4C$ 932
Thu 25/66:01 a.m.
STL
-
YQB
1 stop8h 59m
United Airlines
Sun 28/64:55 p.m.
YQB
-
STL
1 stop7h 50m
United Airlines
Deal found 27/4C$ 935
Thu 31/127:30 a.m.
STL
-
YQB
1 stop7h 30m
United Airlines
Wed 6/14:55 p.m.
YQB
-
STL
1 stop7h 30m
United Airlines
Deal found 23/4C$ 936
Wed 30/124:15 p.m.
STL
-
YQB
1 stop5h 13m
Air Canada
Tue 5/110:20 a.m.
YQB
-
STL
1 stop6h 10m
Air Canada
Deal found 23/4C$ 939

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 28 April 2026.

Round-trip from

C$ 875

One-way from

C$ 511
Air Canada
  • Air Canada
  • 27/5-28/5
  • 2 total stops
  • 12h 15m total
  • St. Louis to Québec City
Search Deals
United Airlines
  • United Airlines
  • 2/10
  • 2 total stops
  • 19h 19m 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 28 April 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

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Wed 27/5

1:05 p.m.-7:45 p.m.

1 stop5h 40m

Québec City

Thu 28/5

2:50 p.m.-8:25 p.m.

1 stop6h 35m

C$ 875

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Mon 8/6

6:00 a.m.-10:41 p.m.

1 stop15h 41m

Québec City

Mon 15/6

4:55 p.m.-11:35 p.m.

1 stop7h 40m

C$ 886

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Thu 25/6

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

1 stop8h 59m

Québec City

Sun 28/6

4:55 p.m.-11:45 p.m.

1 stop7h 50m

C$ 935

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Mon 19/10

7:30 a.m.-3:08 p.m.

1 stop6h 38m

Québec City

Thu 29/10

6:00 a.m.-3:38 p.m.

2 stops10h 38m

C$ 950

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sat 16/5

7:05 a.m.-11:10 p.m.

1 stop15h 05m

Québec City

Sat 23/5

5:00 a.m.-12:06 p.m.

1 stop8h 06m

C$ 957
Quickest round-trip

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Fri 3/7

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

1 stop6h 06m

Québec City

Wed 8/7

2:50 p.m.-6:42 p.m.

1 stop4h 52m

C$ 979

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Thu 25/6

2:15 p.m.-11:11 p.m.

1 stop7h 56m

Québec City

Sun 28/6

5:35 a.m.-12:21 p.m.

2 stops7h 46m

C$ 983

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Thu 16/7

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

1 stop7h 08m

Québec City

Sun 19/7

4:55 p.m.-11:45 p.m.

1 stop7h 50m

C$ 983

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Fri 24/7

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

1 stop8h 59m

Québec City

Sat 1/8

4:55 p.m.-11:45 p.m.

1 stop7h 50m

C$ 983

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Fri 3/7

8:35 p.m.-3:18 p.m.

2 stops17h 43m

Québec City

Wed 8/7

6:00 a.m.-4:07 p.m.

1 stop11h 07m

C$ 996

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/4

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

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 5h 40m. 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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Deals for St. Louis to Québec City flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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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