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Cheap flights from Québec City to St. Louis from C$ 392

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 23/9. Fares are subject to change and may not be available on all flights or dates of travel.
YQB — STL
17 Jun — 24 Jun1
1 adult

Cheap flight deals from Québec City to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Québec City (YQB) to St. Louis (STL). 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 2025.

Round-trip from

C$ 800

One-way from

C$ 392
American Airlines
  • American Airlines
  • 23/6-2/7
  • 2 total stops
  • 30h 16m total
  • Québec City to St. Louis
Search Deals
American Airlines
  • American Airlines
  • 23/9
  • 1 total stop
  • 24h 10m total
  • Québec City to St. Louis
Search Deals

Find flight deals from Québec City to St. Louis

Cheapest flights from Québec City to St. Louis
Explore the most affordable flight options available from Québec City to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.

Mon 23/64:10 p.m.YQB - STL
1 stop8h 44mAmerican Airlines
Wed 2/74:58 p.m.STL - YQB
1 stop21h 32mAmerican Airlines
Deal found 11/6C$ 800
Sun 27/75:20 a.m.YQB - STL
2 stops11h 27mUnited Airlines
Sun 3/84:00 p.m.STL - YQB
1 stop5h 10mUnited Airlines
Deal found 12/6C$ 946
Sun 27/72:50 p.m.YQB - STL
3 stops20h 02mMultiple Airlines
Sun 3/810:47 a.m.STL - YQB
3 stops30h 53mMultiple Airlines
Deal found 12/6C$ 1,045
Sun 27/73:18 p.m.YQB - STL
1 stop8h 27mAir Canada
Sun 3/84:00 p.m.STL - YQB
1 stop5h 10mAir Canada
Deal found 12/6C$ 1,259

Cheapflights Fare Finder

Customize your flight search to find flights from Québec City to St. Louis 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 2025.
Use the filters below to find and compare flights from Québec City to St. Louis that are best for you.

Fly from

Québec City

Fly to

St. Louis

Route

Depart

Return

Price

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Mon 23/6

4:10 p.m.-11:54 p.m.

1 stop8h 44m

Lambert-St Louis

Wed 2/7

4:58 p.m.-3:30 p.m.

1 stop21h 32m

C$ 800

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Sun 27/7

5:20 a.m.-3:47 p.m.

2 stops11h 27m

Lambert-St Louis

Sun 3/8

8:00 a.m.-10:10 p.m.

2 stops13h 10m

C$ 946

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Sun 27/7

2:50 p.m.-9:52 a.m.

3 stops20h 02m

Lambert-St Louis

Sun 3/8

10:47 a.m.-6:40 p.m.

3 stops30h 53m

C$ 1,045

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Sun 27/7

3:18 p.m.-10:45 p.m.

1 stop8h 27m

Lambert-St Louis

Sun 3/8

4:00 p.m.-10:10 p.m.

1 stop5h 10m

C$ 1,259

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Tue 23/9

4:14 p.m.-3:24 p.m.

1 stop24h 10m

C$ 392

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Tue 30/9

4:55 p.m.-10:49 a.m.

2 stops18h 54m

C$ 431

Québec CitySt. Louis

YQB - STL

YQBSTL

Québec City

Tue 23/9

4:35 p.m.-2:53 p.m.

3 stops23h 18m

C$ 860

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

Best time to book a flight from Québec City to St. Louis

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

Cheapflights Insights

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

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 56.0 - 119.0 mm per month. May is typically the wettest month, when rainfall can reach 119.0 mm. February is typically the driest time to visit St. Louis when rainfall is around 56.0 mm.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated 12 June 2025.
United Airlines
7.4
Good
8,790 reviews
Check prices

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.0

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
United Airlines
7.4
Good
8,790 reviews
United Airlines
7.4
Good
8,790 reviews
Check prices

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.0

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,790 reviews
Check prices

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.0

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
Air Canada
7.1
Good
9,531 reviews
United Airlines
7.4
Good
8,790 reviews
Check prices

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.0

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

Related info for your journey

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

  • What are the cheapest airlines flying from Québec City to St. Louis round-trip?

    Cheapflights users have booked flights from Québec City to St. Louis round-trip from C$ 800. Other airlines that can offer you cheap pricing are United Airlines, from C$ 946, and Air Canada, from C$ 1,259.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Québec City to St. Louis 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 Québec City to St. Louis?

    Currently, January is the cheapest month in which you can book a flight from Québec City to St. Louis (average of C$ 365). Flying from Québec City to St. Louis in September is currently the most expensive (average of C$ 491). 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
Chesterfield
St. Peters

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Top airline flying from Québec City to St. Louis

Discover the top airline that operate flights from Québec City to St. Louis. 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 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 511AverageC$ 597FlexibilityNo 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 St. Louis?

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

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

Not ready to book yet? You can track prices for flights from Québec City to St. Louis on Cheapflights with our Price Alert feature and get notified when better prices are available.

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