Cheap flights from St. Louis to Quebec from C$ 193
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 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from St. Louis to Quebec
Keep the following information in mind while searching for St. Louis to Quebec flight deals. Data was last updated 12 June 2025.
Find flight deals from St. Louis to Quebec
Cheapest flights from St. Louis to QuebecExplore the most affordable flight options available from St. Louis to Quebec. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.
Explore the most affordable flight options available from St. Louis to Quebec. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Quebec 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 St. Louis to Quebec that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
St. LouisMontreal
STL - YUL
STLYUL
Lambert-St Louis
Thu 18/9
7:23 a.m.-4:30 p.m.
1 stop8h 07m
Montreal Pierre Elliott Trudeau Intl
Tue 23/9
5:15 p.m.-9:26 a.m.
1 stop17h 11m
St. LouisMontreal
STL - YUL
STLYUL
Lambert-St Louis
Mon 14/7
10:47 a.m.-5:55 p.m.
2 stops30h 08m
Montreal Pierre Elliott Trudeau Intl
Mon 21/7
8:55 a.m.-4:31 p.m.
3 stops32h 36m
St. LouisMontreal
STL - YUL
STLYUL
Lambert-St Louis
Mon 11/8
6:45 p.m.-10:07 a.m.
1 stop14h 22m
Montreal Pierre Elliott Trudeau Intl
Mon 18/8
5:05 p.m.-8:06 a.m.
1 stop16h 01m
St. LouisMontreal
STL - YUL
STLYUL
Lambert-St Louis
Mon 11/8
5:30 p.m.-11:58 a.m.
1 stop17h 28m
Montreal Pierre Elliott Trudeau Intl
Tue 12/8
3:30 p.m.-9:59 a.m.
2 stops19h 29m
St. LouisMontreal
STL - YUL
STLYUL
Lambert-St Louis
Tue 24/6
1:30 p.m.-5:00 p.m.
Nonstop2h 30m
Montreal Pierre Elliott Trudeau Intl
Wed 25/6
7:00 a.m.-12:36 p.m.
1 stop6h 36m
St. LouisQuébec City
STL - YQB
STLYQB
Lambert-St Louis
Thu 14/8
7:59 p.m.-1:44 p.m.
1 stop16h 45m
Québec City
Mon 18/8
4:14 p.m.-11:51 p.m.
1 stop8h 37m
St. LouisQuébec City
STL - YQB
STLYQB
Lambert-St Louis
Sat 26/7
10:45 a.m.-1:55 p.m.
2 stops26h 10m
Québec City
Sat 2/8
5:20 a.m.-12:10 p.m.
3 stops31h 50m
St. LouisQuébec City
STL - YQB
STLYQB
Lambert-St Louis
Sat 26/7
1:30 p.m.-7:41 p.m.
1 stop5h 11m
Québec City
Sat 2/8
1:35 p.m.-7:40 p.m.
2 stops7h 05m
St. LouisQuébec City
STL - YQB
STLYQB
Lambert-St Louis
Mon 24/11
6:43 p.m.-2:13 p.m.
1 stop18h 30m
Québec City
Fri 28/11
2:55 p.m.-10:47 p.m.
1 stop8h 52m
St. LouisMontreal
STL - YUL
STLYUL
Lambert-St Louis
Thu 18/9
7:23 a.m.-4:30 p.m.
1 stop8h 07m
Best time to book a flight from St. Louis to Quebec
Have a flexible travel schedule? Discover the best time to fly to Quebec from St. Louis with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Quebec
What is the cheapest month to book a flight from St. Louis to Quebec?
Currently, October is the cheapest month in which you can book a flight from St. Louis to Quebec (average of C$ 241). Flying from St. Louis to Quebec in April is currently the most expensive (average of C$ 316). 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.
What is the cheapest time of day to fly from STL to QC?
Find hourly flight availability from St. Louis to Quebec. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 June 2025.
When flying from St. Louis to Quebec, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from St. Louis to Quebec
Explore weekly flight availability from St. Louis to Quebec. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 12 June 2025.
The most flights from STL to CAQC are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).
Rainfall in Quebec by month
Plan your trip to Quebec by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Quebec ranges from 64.0 - 111.0 mm per month. August is typically the wettest month, when rainfall can reach 111.0 mm. February is typically the driest time to visit Quebec when rainfall is around 64.0 mm.
Temperature in Quebec by month
Plan your trip to Quebec by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Quebec, 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 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -9.0 C).
Reviews of airlines servicing Quebec
Get insights into the airlines that provide service to Quebec. 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 Quebec. Reviews last updated 12 June 2025.
Get a feel of what it's like to fly with Delta, United Airlines and American Airlines from St. Louis to Quebec by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Crew
Overall
Comfort
Boarding
Food
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Crew
Overall
Comfort
Boarding
Food
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Crew
Overall
Comfort
Boarding
Food
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Crew
Overall
Comfort
Boarding
Food
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Crew
Overall
Comfort
Boarding
Food
Reviews
Kim,May 2025
PIH - SLC
Entertainment
Crew
Overall
Comfort
Boarding
Food
Reviews
Kim,May 2025
PIH - SLC
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Quebec. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for St. Louis to Quebec
See prices for flight routes from nearby airports that may be better suited for you.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from St. Louis to Quebec?
Cheapflights helps you search for flights from St. Louis to Quebec via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from St. Louis to Quebec?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from St. Louis to Quebec.
Can Cheapflights find flights from St. Louis to Quebec with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from St. Louis to Quebec, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from St. Louis to Quebec become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Quebec from St. Louis today and book when prices fit your budget.