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Québec City

$282+ 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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
STL — YQB
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
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 July 29, 2025.

Round-trip from

$527
(American Airlines)

One-way from

$282
(United Airlines)

Popular in

July

Cheapest in

January

Average price

$804
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. 15% potential increase in price ($112 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 29, 2025.

This American Airlines deal was found by Cheapflights users on 7/27. 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.
Tue 8/264:19 pmSTL - YQB
1 stop20h 25mAmerican Airlines
Tue 9/24:14 pmYQB - STL
1 stop20h 21mAmerican Airlines
Deal found 7/27$527
This United Airlines deal was found by Cheapflights users on 7/27. 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 8/269:17 amSTL - YQB
2 stops11h 53mUnited Airlines
Tue 9/25:20 amYQB - STL
2 stops11h 24mUnited Airlines
Deal found 7/27$626
This Air Canada deal was found by Cheapflights users on 7/26. 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 11/244:05 pmSTL - YQB
1 stop5h 38mAir Canada
Tue 12/210:50 amYQB - STL
1 stop5h 39mAir Canada
Deal found 7/26$659
This United deal was found by Cheapflights users on 7/27. 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.
Sun 11/212:31 pmSTL - YQB
2 stops9h 12mMultiple Airlines
Thu 11/69:15 amYQB - STL
2 stops7h 14mMultiple Airlines
Deal found 7/27$749

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 July 29, 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

Tue 8/26

4:19 pm-1:44 pm

1 stop20h 25m

Québec City

Tue 9/2

4:14 pm-11:35 am

1 stop20h 21m

$527

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Tue 8/26

9:17 am-10:10 pm

2 stops11h 53m

Québec City

Tue 9/2

5:20 am-3:44 pm

2 stops11h 24m

$626

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Mon 11/24

4:05 pm-10:43 pm

1 stop5h 38m

Québec City

Tue 12/2

10:50 am-3:29 pm

1 stop5h 39m

$659

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sun 11/2

12:31 pm-10:43 pm

2 stops9h 12m

Québec City

Thu 11/6

9:15 am-3:29 pm

2 stops7h 14m

$749

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sat 10/18

3:23 pm-4:00 pm

2 stops23h 37m

$282

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Thu 9/25

4:05 pm-10:10 pm

1 stop5h 05m

$303

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Thu 9/25

9:56 am-1:44 pm

1 stop26h 48m

$315

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Sat 10/18

5:28 pm-2:16 pm

1 stop19h 48m

$322

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

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.

How much does it cost to fly round-trip from St. Louis to Québec City?

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 July 29, 2025.
Peruse reviews from past customers who have flown with United Airlines, American 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
8,896 reviews

Food

6.6

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Entertainment

7.1

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
8,896 reviews
United Airlines
7.4
Good
8,896 reviews

Food

6.6

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Entertainment

7.1

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??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,896 reviews

Food

6.6

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Entertainment

7.1

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
9,826 reviews
United Airlines
7.4
Good
8,896 reviews

Food

6.6

Comfort

7.3

Overall

7.4

Crew

8.1

Boarding

7.7

Entertainment

7.1

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.

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

    American Airlines, at $527, was found to be the cheapest airline from St. Louis to Québec City.Alternate airlines to your destination round-trip include United Airlines and Air Canada. American Airlines is currently priced 11% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from St. Louis to Québec City one-way?

    $282 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Air Canada and American Airlines, with prices starting from $303 and $315, respectively.

  • 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$211Average$699FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$358Average$729FlexibilityNo cancel feeOn-time69%

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