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Québec City

$134+ 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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YQB
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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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 September 11, 2025.

Round-trip from

$299
(American Airlines)

One-way from

$134
(American Airlines)

Popular in

July

Cheapest in

January

Average price

$783
From Lambert-St Louis to Québec City
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One-way flight from Lambert-St Louis to Québec City
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Highest demand for flights based on searches. 12% potential increase in price ($91 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from St. Louis to Québec City

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 September 11, 2025.

This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/228:04 pmSTL - YQB
1 stop16h 32mAmerican Airlines
Sat 10/254:14 pmYQB - STL
1 stop27h 55mAmerican Airlines
Deal found 9/10$299
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/108:05 pmSTL - YQB
2 stops18h 29mAmerican Airlines
Fri 10/244:14 pmYQB - STL
2 stops20h 37mAmerican Airlines
Deal found 9/10$379
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.
Mon 11/246:43 pmSTL - YQB
2 stops20h 15mUnited Airlines
Fri 11/285:00 amYQB - STL
2 stops11h 46mUnited Airlines
Deal found 9/11$474
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/58:03 pmSTL - YQB
2 stops18h 31mAmerican Airlines
Wed 10/84:14 pmYQB - STL
2 stops20h 58mAmerican Airlines
Deal found 9/9$531
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.
Fri 11/217:00 amSTL - YQB
1 stop7h 52mUnited Airlines
Mon 11/242:55 pmYQB - STL
1 stop8h 50mUnited Airlines
Deal found 9/11$740
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/266:10 amSTL - YQB
1 stop6h 34mAmerican Airlines
Tue 9/304:14 pmYQB - STL
1 stop22h 17mAmerican Airlines
Deal found 9/11$743
This United 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/265:28 pmSTL - YQB
2 stops15h 32mMultiple Airlines
Tue 9/308:35 pmYQB - STL
2 stops19h 43mMultiple Airlines
Deal found 9/11$754

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 September 11, 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

Fri 10/10

4:34 pm-1:36 pm

1 stop20h 02m

Québec City

Fri 10/24

4:14 pm-9:09 am

1 stop17h 55m

$299

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Mon 10/13

4:34 pm-1:36 pm

1 stop20h 02m

Québec City

Fri 10/17

4:14 pm-8:09 am

1 stop16h 55m

$299

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Wed 10/22

8:04 pm-1:36 pm

1 stop16h 32m

Québec City

Sat 10/25

4:14 pm-7:09 pm

1 stop27h 55m

$299

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Mon 11/24

6:43 pm-3:58 pm

2 stops20h 15m

Québec City

Fri 11/28

5:00 am-5:39 pm

2 stops13h 39m

$474

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Wed 9/24

6:00 am-12:02 pm

1 stop5h 02m

$295

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Thu 9/25

6:05 am-1:44 pm

1 stop6h 39m

$295

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Thu 9/25

9:20 am-10:41 pm

2 stops12h 21m

$301

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sun 9/28

5:00 am-6:55 pm

2 stops12h 55m

$353

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sun 9/28

4:05 pm-10:10 pm

1 stop5h 05m

$495

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

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, February is the cheapest month in which you can book a flight from St. Louis to Québec City (average of $363). Flying from St. Louis to Québec City in September is currently the most expensive (average of $584). 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.

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, 2025.
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.
United Airlines
7.4
Good
8,937 reviews

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.1
Good
10,000 reviews
United Airlines
7.4
Good
8,937 reviews

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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?

    For as low as $299, American Airlines can have you in Québec City from St. Louis in 20h 02m. The distance from St. Louis to Québec City is about 1107 mi.

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

    Air Canada, at $193, was found to be the cheapest airline from St. Louis to Québec City. An alternate airline flying to your destination would be United Airlines. Air Canada is currently priced 68% below the average price you’ll pay for this route.

  • 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, February is the cheapest month in which you can book a flight from St. Louis to Québec City (average of $363). Flying from St. Louis to Québec City in September is currently the most expensive (average of $584). 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

Browse thousands of different options on Cheapflights for your next trip

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$193Average$747FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$358Average$757FlexibilityNo cancel feeOn-time69%

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