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Cheap flights from St. Louis to Québec City from C$ 404

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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YQB
27 nov. — 4 dic.1
1 adult
1 adult, Economy, 0 bags

Find flight deals from St. Louis to Québec City

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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 octubre 2025.

lun. 8/1210:00 a.m.STL - YQB
2 stops11h 43mUnited Airlines
jue. 11/126:00 a.m.YQB - STL
2 stops17h 45mUnited Airlines
Deal found 27/10C$ 680
mié. 10/126:42 p.m.STL - YQB
2 stops27h 01mUnited Airlines
mié. 17/1210:55 a.m.YQB - STL
2 stops12h 50mUnited Airlines
Deal found 26/10C$ 683
sáb. 6/125:27 p.m.STL - YQB
2 stops21h 31mUnited Airlines
mar. 9/125:00 a.m.YQB - STL
2 stops11h 40mUnited Airlines
Deal found 27/10C$ 711
mié. 26/115:24 p.m.STL - YQB
2 stops21h 28mUnited Airlines
mié. 3/125:00 a.m.YQB - STL
2 stops11h 40mUnited Airlines
Deal found 27/10C$ 806
lun. 24/1110:00 a.m.STL - YQB
2 stops11h 43mUnited Airlines
vie. 28/115:00 a.m.YQB - STL
2 stops18h 45mUnited Airlines
Deal found 27/10C$ 815
dom. 21/1210:57 a.m.STL - YQB
2 stops27h 23mMultiple Airlines
jue. 25/126:30 a.m.YQB - STL
1 stop17h 03mMultiple Airlines
Deal found 27/10C$ 926

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 28 octubre 2025.

Round-trip from

C$ 652

One-way from

C$ 404

Popular in

July

Cheapest in

October

Average price

C$ 330
United Airlines
  • United Airlines
  • 9/2-12/2
  • 4 total stops
  • 28h 50m total
  • St. Louis to Québec City
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United Airlines
  • United Airlines
  • 5/12
  • 2 total stops
  • 28h 20m total
  • St. Louis to Québec City
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (C$ 253 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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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 octubre 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

lun. 9/2

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

2 stops11h 50m

Québec City

jue. 12/2

5:00 a.m.-9:00 p.m.

2 stops17h 00m

C$ 652

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

dom. 15/2

7:41 a.m.-9:45 a.m.

2 stops25h 04m

Québec City

mié. 18/2

5:00 a.m.-9:00 p.m.

2 stops17h 00m

C$ 662

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

sáb. 6/12

5:27 p.m.-3:58 p.m.

2 stops21h 31m

Québec City

mar. 9/12

5:00 a.m.-3:40 p.m.

2 stops11h 40m

C$ 711

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

mié. 18/2

9:55 a.m.-10:43 p.m.

2 stops11h 48m

Québec City

dom. 22/2

10:55 a.m.-9:00 p.m.

2 stops11h 05m

C$ 783

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

mié. 26/11

5:24 p.m.-3:52 p.m.

2 stops21h 28m

Québec City

mié. 3/12

5:00 a.m.-3:40 p.m.

2 stops11h 40m

C$ 806

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

lun. 24/11

10:00 a.m.-10:43 p.m.

2 stops11h 43m

Québec City

vie. 28/11

5:00 a.m.-10:45 p.m.

2 stops18h 45m

C$ 815

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

vie. 5/12

5:27 p.m.-10:47 p.m.

2 stops28h 20m

C$ 404

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

vie. 5/12

4:05 p.m.-10:28 p.m.

1 stop5h 23m

C$ 436

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

vie. 5/12

7:43 p.m.-8:15 a.m.

3 stops35h 32m

C$ 476

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/10

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, January is the cheapest month in which you can book a flight from St. Louis to Québec City (average of C$ 248). Flying from St. Louis to Québec City in August is currently the most expensive (average of C$ 1,112). 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 11h 50m. Fly via United 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, January is the cheapest month in which you can book a flight from St. Louis to Québec City (average of C$ 248). Flying from St. Louis to Québec City in August is currently the most expensive (average of C$ 1,112). 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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