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Cheap flights from St. Louis to Québec City from C$ 186

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 30/10. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YQB
11 Oct — 18 Oct1
1 adult
1 adult, Economy

Cheap 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 11 September 2025.

Round-trip from

C$ 414

One-way from

C$ 186

Popular in

July

Cheapest in

January

Average price

C$ 1,085
American Airlines
  • American Airlines
  • 22/10-25/10
  • 2 total stops
  • 44h 27m total
  • St. Louis to Québec City
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American Airlines
  • American Airlines
  • 30/10
  • 1 total stop
  • 16h 42m total
  • St. Louis to Québec City
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Highest demand for flights based on searches. 12% potential increase in price (C$ 174 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 34 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from St. Louis to Québec City

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 11 September 2025.

Wed 22/108:04 p.m.STL - YQB
1 stop16h 32mAmerican Airlines
Sat 25/104:14 p.m.YQB - STL
1 stop27h 55mAmerican Airlines
Deal found 10/9C$ 414
Fri 10/108:05 p.m.STL - YQB
2 stops18h 29mAmerican Airlines
Fri 24/104:14 p.m.YQB - STL
2 stops20h 37mAmerican Airlines
Deal found 10/9C$ 525
Mon 24/116:43 p.m.STL - YQB
2 stops20h 15mUnited Airlines
Fri 28/115:00 a.m.YQB - STL
2 stops11h 46mUnited Airlines
Deal found 11/9C$ 657
Sun 5/108:03 p.m.STL - YQB
2 stops18h 31mAmerican Airlines
Wed 8/104:14 p.m.YQB - STL
2 stops20h 58mAmerican Airlines
Deal found 9/9C$ 736
Fri 21/117:00 a.m.STL - YQB
1 stop7h 52mUnited Airlines
Mon 24/112:55 p.m.YQB - STL
1 stop8h 50mUnited Airlines
Deal found 11/9C$ 1,025
Fri 26/96:10 a.m.STL - YQB
1 stop6h 34mAmerican Airlines
Tue 30/94:14 p.m.YQB - STL
1 stop22h 17mAmerican Airlines
Deal found 11/9C$ 1,030
Fri 26/95:28 p.m.STL - YQB
2 stops15h 32mMultiple Airlines
Tue 30/98:35 p.m.YQB - STL
2 stops19h 43mMultiple Airlines
Deal found 11/9C$ 1,045

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 11 September 2025.
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

Fri 10/10

4:34 p.m.-1:36 p.m.

1 stop20h 02m

Québec City

Fri 24/10

4:14 p.m.-9:09 a.m.

1 stop17h 55m

C$ 414

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Mon 13/10

4:34 p.m.-1:36 p.m.

1 stop20h 02m

Québec City

Fri 17/10

4:14 p.m.-8:09 a.m.

1 stop16h 55m

C$ 414

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Wed 22/10

8:04 p.m.-1:36 p.m.

1 stop16h 32m

Québec City

Sat 25/10

4:14 p.m.-7:09 p.m.

1 stop27h 55m

C$ 414

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Mon 24/11

6:43 p.m.-3:58 p.m.

2 stops20h 15m

Québec City

Fri 28/11

5:00 a.m.-5:39 p.m.

2 stops13h 39m

C$ 657

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Wed 24/9

6:00 a.m.-12:02 p.m.

1 stop5h 02m

C$ 409

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Thu 25/9

6:05 a.m.-1:44 p.m.

1 stop6h 39m

C$ 409

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Thu 25/9

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

2 stops12h 21m

C$ 417

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sun 28/9

5:00 a.m.-6:55 p.m.

2 stops12h 55m

C$ 489

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sun 28/9

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

1 stop5h 05m

C$ 686

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/9

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

What is the cheapest month to book a flight from St. Louis to Québec City?

Currently, May is the cheapest month in which you can book a flight from St. Louis to Québec City (average of C$ 258). Flying from St. Louis to Québec City in December is currently the most expensive (average of C$ 432). 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.

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 20h 02m. Fly via American Airlines to get the fastest option. The distance between St. Louis and Québec City is about 1782 km.

  • 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.

  • What is the cheapest month to book a flight from St. Louis to Québec City?

    Currently, May is the cheapest month in which you can book a flight from St. Louis to Québec City (average of C$ 258). Flying from St. Louis to Québec City in December is currently the most expensive (average of C$ 432). 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

Travelling to a place near Québec City?

Book flights to Québec City if you plan to visit one of these locations
Victoriaville

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

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

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