$332+ Cheap flights from St. Louis (STL) to Québec City (YQB)
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 4/11. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YQB
Apr 10 — Apr 171
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
One-way
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 March 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 March 11, 2026.
This Gotogate deal was found by Cheapflights users on 3/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/244:05 pm
STL
- YQB
1 stop5h 20m
Air Canada
Fri 5/15:35 am
YQB
- STL
2 stops7h 31m
Air Canada
Deal found 3/10![Air Canada logo]()
$626
This Air Canada deal was found by Cheapflights users on 3/6. 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 8/3112:10 pm
STL
- YQB
1 stop6h 31m
Air Canada
Wed 9/21:05 pm
YQB
- STL
1 stop6h 37m
Air Canada
Deal found 3/6![Air Canada logo]()
$716
This Air Canada deal was found by Cheapflights users on 3/9. 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.
Tue 5/197:05 am
STL
- YQB
1 stop5h 25m
Air Canada
Fri 5/222:50 pm
YQB
- STL
1 stop6h 35m
Air Canada
Deal found 3/9![Air Canada logo]()
$720
This United Airlines deal was found by Cheapflights users on 3/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/256:01 am
STL
- YQB
1 stop5h 01m
United Airlines
Sun 6/284:55 pm
YQB
- STL
1 stop7h 50m
United Airlines
Deal found 3/8![United Airlines logo]()
$723
This American Airlines deal was found by Cheapflights users on 3/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/205:21 pm
STL
- YQB
1 stop18h 56m
American Airlines
Sat 5/231:48 pm
YQB
- STL
1 stop8h 32m
American Airlines
Deal found 3/10![American Airlines logo]()
$724
This Air Canada deal was found by Cheapflights users on 3/8. 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 4/34:05 pm
STL
- YQB
1 stop5h 20m
Air Canada
Sun 4/510:40 am
YQB
- STL
1 stop5h 45m
Air Canada
Deal found 3/8![Air Canada logo]()
$725
This Air Canada deal was found by Cheapflights users on 3/9. 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 5/207:05 am
STL
- YQB
1 stop5h 25m
Air Canada
Sat 5/231:55 pm
YQB
- STL
2 stops7h 09m
Air Canada
Deal found 3/9![Air Canada logo]()
$731
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 March 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 March 11, 2026.
This Gotogate deal was found by Cheapflights users on 3/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/244:05 pm
STL
- YQB
1 stop5h 20m
Air Canada
Fri 5/15:00 am
YQB
- STL
1 stop8h 06m
Air Canada
Deal found 3/10![Air Canada logo]()
$651
This United Airlines deal was found by Cheapflights users on 3/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/228:21 am
STL
- YQB
1 stop4h 42m
United Airlines
Wed 4/293:00 pm
YQB
- STL
1 stop7h 13m
United Airlines
Deal found 3/8![United Airlines logo]()
$723
This American Airlines deal was found by Cheapflights users on 3/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/205:21 pm
STL
- YQB
1 stop18h 56m
American Airlines
Sat 5/231:48 pm
YQB
- STL
1 stop8h 32m
American Airlines
Deal found 3/10![American Airlines logo]()
$724
This Air Canada deal was found by Cheapflights users on 3/8. 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.
Tue 5/197:05 am
STL
- YQB
1 stop5h 25m
Air Canada
Fri 5/222:50 pm
YQB
- STL
1 stop6h 35m
Air Canada
Deal found 3/8![Air Canada logo]()
$720
This United Airlines deal was found by Cheapflights users on 3/7. 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 4/211:10 pm
STL
- YQB
2 stops8h 31m
United Airlines
Tue 4/283:00 pm
YQB
- STL
1 stop7h 52m
United Airlines
Deal found 3/7![United Airlines logo]()
$729
This Air Canada deal was found by Cheapflights users on 3/7. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/207:05 am
STL
- YQB
1 stop5h 25m
Air Canada
Sat 5/232:50 pm
YQB
- STL
1 stop6h 35m
Air Canada
Deal found 3/7![Air Canada logo]()
$720
This United Airlines deal was found by Cheapflights users on 3/7. 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.
Fri 4/31:10 pm
STL
- YQB
2 stops8h 31m
United Airlines
Sun 4/56:00 am
YQB
- STL
2 stops9h 24m
United Airlines
Deal found 3/7![United Airlines logo]()
$739
This Air Canada deal was found by Cheapflights users on 3/9. 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 4/34:05 pm
STL
- YQB
1 stop5h 20m
Air Canada
Sun 4/510:40 am
YQB
- STL
1 stop5h 45m
Air Canada
Deal found 3/9![Air Canada logo]()
$736
Last-minute flights from St. Louis to Québec CityDiscover last-minute flight deals from St. Louis to Québec City. Data last updated March 11, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Québec City. Data last updated March 11, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 3/8. 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 4/34:05 pm
STL
- YQB
1 stop5h 20m
Air Canada
Sun 4/510:40 am
YQB
- STL
1 stop5h 45m
Air Canada
Deal found 3/8![Air Canada logo]()
$725
This United Airlines deal was found by Cheapflights users on 3/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/310:00 am
STL
- YQB
2 stops11h 41m
United Airlines
Sun 4/56:00 am
YQB
- STL
2 stops10h 48m
United Airlines
Deal found 3/8![United Airlines logo]()
$739
This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/67:45 am
STL
- YQB
2 stops13h 56m
United Airlines
Mon 4/133:00 pm
YQB
- STL
1 stop7h 52m
United Airlines
Deal found 3/9![United Airlines logo]()
$744
This United Airlines deal was found by Cheapflights users on 3/7. 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 4/216:30 am
STL
- YQB
1 stop6h 33m
United Airlines
Tue 4/283:00 pm
YQB
- STL
1 stop7h 52m
United Airlines
Deal found 3/7![United Airlines logo]()
$723
This United Airlines deal was found by Cheapflights users on 3/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:45 am
STL
- YQB
1 stop5h 18m
United Airlines
Wed 4/296:00 am
YQB
- STL
2 stops9h 24m
United Airlines
Deal found 3/8![United Airlines logo]()
$733
This Gotogate deal was found by Cheapflights users on 3/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/244:05 pm
STL
- YQB
1 stop5h 20m
Air Canada
Fri 5/15:35 am
YQB
- STL
2 stops7h 31m
Air Canada
Deal found 3/10![Air Canada logo]()
$626
One-way flights from St. Louis to Québec CitySearch for one-way flight options from St. Louis to Québec City. Find affordable one-way fares based on user searches. Data last updated March 11, 2026.
Search for one-way flight options from St. Louis to Québec City. Find affordable one-way fares based on user searches. Data last updated March 11, 2026.
This United Airlines deal was found by Cheapflights users on 3/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/118:21 am
STL
- YQB
1 stop4h 42m
United Airlines
Deal found 3/8![United Airlines logo]()
$332
This United Airlines deal was found by Cheapflights users on 3/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2610:20 am
STL
- YQB
3 stops11h 21m
United Airlines
Deal found 3/8![United Airlines logo]()
$343
This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/259:23 am
STL
- YQB
3 stops12h 18m
United Airlines
Deal found 3/9![United Airlines logo]()
$364
This Kiwi.com deal was found by Cheapflights users on 3/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/118:36 am
STL
- YQB
3 stops29h 44m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$493
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 March 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $626 (Gotogate) |
One-way from | $332 (United Airlines) |
Popular in | March |
Cheapest in | October |
Average price | $979 |
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 2,558,603 searches. Data last updated March 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 - YQB
STLYQB
Lambert-St Louis
Fri 4/24
4:05 pm-10:25 pm
1 stop5h 20m
Québec City
Fri 5/1
5:00 am-12:06 pm
1 stop8h 06m
$651
St. LouisQuébec City
STL - YQB
STLYQB
Lambert-St Louis
Tue 5/19
7:05 am-1:30 pm
1 stop5h 25m
Québec City
Fri 5/22
2:50 pm-8:25 pm
1 stop6h 35m
$720
St. LouisQuébec City
STL - YQB
STLYQB
Lambert-St Louis
Wed 5/20
7:05 am-1:30 pm
1 stop5h 25m
Québec City
Sat 5/23
2:50 pm-8:25 pm
1 stop6h 35m
$720
St. LouisQuébec City
STL - YQB
STLYQB
Lambert-St Louis
Wed 4/22
8:21 am-2:03 pm
1 stop4h 42m
Québec City
Wed 4/29
3:00 pm-9:13 pm
1 stop7h 13m
$723
St. LouisQuébec City
STL - YQB
STLYQB
Lambert-St Louis
Wed 5/20
5:21 pm-1:17 pm
1 stop18h 56m
Québec City
Sat 5/23
1:48 pm-9:20 pm
1 stop8h 32m
$724
St. LouisQuébec City
STL - YQB
STLYQB
Lambert-St Louis
Tue 4/21
1:10 pm-10:41 pm
2 stops8h 31m
Québec City
Tue 4/28
3:00 pm-9:52 pm
1 stop7h 52m
$729
Quickest round-trip
St. LouisQuébec City
STL - YQB
STLYQB
Lambert-St Louis
Fri 4/3
4:05 pm-10:25 pm
1 stop5h 20m
Québec City
Sun 4/5
10:40 am-3:25 pm
1 stop5h 45m
$736
St. LouisQuébec City
STL - YQB
STLYQB
Lambert-St Louis
Fri 4/3
1:10 pm-10:41 pm
2 stops8h 31m
Québec City
Sun 4/5
6:00 am-2:24 pm
2 stops9h 24m
$739
Cheapest one-way
Quickest one-way
St. LouisQuébec City
STL - YQB
STLYQB
Lambert-St Louis
Sat 4/11
8:21 am-2:03 pm
1 stop4h 42m
$332
St. LouisQuébec City
STL - YQB
STLYQB
Lambert-St Louis
Mon 5/25
6:00 am-12:02 pm
1 stop5h 02m
$332
Showing 1-10 of 12 resultsSorted 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 March.
| 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.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Québec City
Prices
More
What’s the top layover airport for flights from St. Louis to Québec City?
Share of 1-stop round-trip flights from St. Louis to Québec City chosen by Cheapflights users in the past 12 months, using the same layover each way.
Chicago (ORD) – chosen by Cheapflights users on 50% of 1-stop itineraries from St. Louis to Québec City on Cheapflights.
What’s the cheapest layover airport for flights from St. Louis to Québec City?
Average round-trip fare for 1-stop flights from St. Louis to Québec City, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Chicago (ORD) is the most affordable 1-stop option, with an average round-trip price of $701.
What’s the fastest layover option from St. Louis to Québec City?
Shortest average travel time for 1-stop one-way flights from St. Louis to Québec City, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Newark (EWR) have the shortest average one-way travel time for 1-stop routes: 5h 02m.
Which airport typically offers the quickest layover for flights from St. Louis to Québec City?
Average layover duration for 1-stop one-way flights from St. Louis to Québec City, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Newark (EWR) offer the fastest connection on this route, with an average layover time of 1h 50m.
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 March 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.
Overall
7.4
Crew
8.1
Comfort
7.3
Food
6.6
Boarding
7.7
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Overall
7.4
Crew
8.1
Comfort
7.3
Food
6.6
Boarding
7.7
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Overall
7.4
Crew
8.1
Comfort
7.3
Food
6.6
Boarding
7.7
Entertainment
7.1
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
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.
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Complete your trip
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St. Louis and Québec City flights
Browse other St. Louis and Québec City flight options. Last updated on March 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 March 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 March 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 2,558,603 searches. Data last updated March 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$193 | Average$818 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$358 | Average$786 | FlexibilityNo cancel fee | On-time69% |