$570+ Cheap flights from St. Louis (STL) to Québec City (YQB)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YQB
Oct 11 — Oct 181
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Québec City with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Québec City
Cheapest
Best
Last-minute
Cheapest flights from St. Louis to Québec CityExplore 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 September 11, 2026.
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 September 11, 2026.
This Air Canada deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:55 am -
1 stop6h 02m
Fri 10/3010:40 am -
1 stop5h 43m
Deal found 9/8![Air Canada logo]()
$570
This Air Canada deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:55 am -
1 stop13h 47m
Mon 10/122:50 pm -
1 stop4h 51m
Deal found 9/9![Air Canada logo]()
$589
This American Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:07 pm -
2 stops16h 33m
Fri 10/302:25 pm -
1 stop27h 26m
Deal found 9/8![American Airlines logo]()
$594
This Air Canada deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/56:55 pm -
1 stop18h 50m
Fri 12/1110:40 am -
1 stop5h 46m
Deal found 9/9![Multiple Airlines logo]()
$600
This Air Canada deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/198:55 am -
1 stop6h 17m
Thu 9/241:05 pm -
1 stop6h 36m
Deal found 9/9![Air Canada logo]()
$634
This Air Canada deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/44:05 pm -
1 stop6h 11m
Mon 12/75:00 am -
1 stop11h 26m
Deal found 9/9![Air Canada logo]()
$636
This Air Canada deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/304:05 pm -
1 stop6h 11m
Tue 1/510:40 am -
1 stop5h 46m
Deal found 9/9![Air Canada logo]()
$645
This Air Canada deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/51:15 pm -
2 stops8h 31m
Fri 12/115:00 am -
2 stops8h 10m
Deal found 9/9![Air Canada logo]()
$659
This Air Canada deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:55 am -
1 stop6h 17m
Fri 9/255:00 am -
1 stop10h 00m
Deal found 9/10![Air Canada logo]()
$663
This Air Canada deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/78:55 am -
1 stop6h 02m
Wed 10/142:50 pm -
1 stop4h 51m
Deal found 9/10![Air Canada logo]()
$679
Best flights from St. Louis to Québec CityDiscover carefully curated flight deals from St. Louis to Québec City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.
Discover carefully curated flight deals from St. Louis to Québec City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.
This Air Canada deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/51:15 pm -
2 stops8h 31m
Fri 12/115:00 am -
2 stops8h 10m
Deal found 9/9![Air Canada logo]()
$659
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/55:15 am -
1 stop8h 30m
Fri 12/113:45 pm -
1 stop8h 14m
Deal found 9/11![United Airlines logo]()
$682
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:00 am -
1 stop7h 45m
Thu 11/53:45 pm -
1 stop6h 55m
Deal found 9/10![United Airlines logo]()
$682
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/109:30 am -
1 stop5h 42m
Sat 10/176:00 am -
1 stop6h 33m
Deal found 9/10![United Airlines logo]()
$682
This United Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/296:58 pm -
2 stops20h 43m
Wed 1/612:45 pm -
1 stop10h 08m
Deal found 9/7![United Airlines logo]()
$718
Last-minute flights from St. Louis to Québec CityDiscover last-minute flight deals from St. Louis to Québec City. Data last updated September 11, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Québec City. Data last updated September 11, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/198:55 am -
1 stop6h 17m
Thu 9/241:05 pm -
1 stop6h 36m
Deal found 9/9![Air Canada logo]()
$634
This Air Canada deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:55 am -
1 stop6h 17m
Fri 9/255:00 am -
1 stop10h 00m
Deal found 9/10![Air Canada logo]()
$663
This Air Canada deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/78:55 am -
1 stop6h 02m
Wed 10/142:50 pm -
1 stop4h 51m
Deal found 9/10![Air Canada logo]()
$679
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:00 am -
2 stops8h 08m
Wed 10/146:00 am -
2 stops9h 17m
Deal found 9/10![United Airlines logo]()
$697
This United deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:30 am -
1 stop6h 38m
Wed 10/142:50 pm -
1 stop4h 51m
Deal found 9/7![Multiple Airlines logo]()
$759
This Air Canada deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:55 am -
1 stop13h 47m
Mon 10/122:50 pm -
1 stop4h 51m
Deal found 9/9![Air Canada logo]()
$589
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/109:30 am -
1 stop5h 42m
Sat 10/176:00 am -
1 stop6h 33m
Deal found 9/10![United Airlines logo]()
$682
This United deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/109:30 am -
1 stop12h 11m
Sat 10/175:35 am -
2 stops9h 25m
Deal found 9/10![Multiple Airlines logo]()
$689
This Air Canada deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:55 am -
1 stop6h 02m
Fri 10/3010:40 am -
1 stop5h 43m
Deal found 9/8![Air Canada logo]()
$570
This American Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:07 pm -
2 stops16h 33m
Fri 10/302:25 pm -
1 stop27h 26m
Deal found 9/8![American Airlines logo]()
$594
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 September 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $570 (Air Canada) |
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 7,457,451 searches. Data last updated September 11, 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
Cheapest round-trip
St. LouisQuébec City
STL Lambert-St Louis - YQB Québec City
STLYQB
Lambert-St Louis
Sat 12/5
1:15 pm-10:46 pm
2 stops8h 31m
Québec City
Fri 12/11
5:00 am-12:10 pm
2 stops8h 10m
$659
St. LouisQuébec City
STL Lambert-St Louis - YQB Québec City
STLYQB
Lambert-St Louis
Sat 12/5
5:15 am-2:45 pm
1 stop8h 30m
Québec City
Fri 12/11
3:45 pm-10:59 pm
1 stop8h 14m
$682
St. LouisQuébec City
STL Lambert-St Louis - YQB Québec City
STLYQB
Lambert-St Louis
Mon 11/2
6:00 am-2:45 pm
1 stop7h 45m
Québec City
Thu 11/5
3:45 pm-9:40 pm
1 stop6h 55m
$682
Quickest round-trip
St. LouisQuébec City
STL Lambert-St Louis - YQB Québec City
STLYQB
Lambert-St Louis
Sat 10/10
9:30 am-4:12 pm
1 stop5h 42m
Québec City
Sat 10/17
6:00 am-11:33 am
1 stop6h 33m
$682
St. LouisQuébec City
STL Lambert-St Louis - YQB Québec City
STLYQB
Lambert-St Louis
Tue 12/29
6:58 pm-4:41 pm
2 stops20h 43m
Québec City
Wed 1/6
12:45 pm-9:53 pm
1 stop10h 08m
$718
Sorted by cheapest first
Compare providers for flights from St. Louis to Québec City
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Québec City in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-Québec City flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Québec City flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Québec City flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Québec City flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Québec City flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
STL-YQB
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.
Reviews of airlines servicing Québec City
Get insights into the airlines that provide service to Québec City. 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 Québec City. Reviews last updated September 11, 2026.
Peruse reviews from past customers who have flown with United Airlines and Air Canada from St. Louis to Québec City to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
6.7
Overall
7.4
Crew
8.1
Entertainment
7.1
Comfort
7.3
Boarding
7.7
Reviews
1 / 20
6.0
GoodMiz,Oct 2024
EWR - YYZ
Food
6.7
Overall
7.4
Crew
8.1
Entertainment
7.1
Comfort
7.3
Boarding
7.7
Reviews
1 / 20
6.0
GoodMiz,Oct 2024
EWR - YYZ
Food
6.7
Overall
7.4
Crew
8.1
Entertainment
7.1
Comfort
7.3
Boarding
7.7
Reviews
1 / 20
6.0
GoodMiz,Oct 2024
EWR - YYZ
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.
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.
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Alternative routes for St. Louis to Québec City
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Complete your trip
Complete your trip to Québec City by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from St. Louis to Québec City, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Québec City flights
Browse other St. Louis and Québec City flight options. Last updated on September 11, 2026.
Other flights from St. Louis
Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on September 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Québec City
Explore flights to Québec City departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 11, 2026.
Top 2 airlines flying from St. Louis to Québec City
Discover the top 2 airlines that operate flights from St. Louis to Québec City. 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 7,457,451 searches. Data last updated September 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$291 | Average$827 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$486 | Average$827 | FlexibilityNo cancel fee | On-time69% |