$179 Cheap Flights from St. Louis (STL) to Québec (YQB)

View $179 flight on Sat, Oct 4, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Quebec City Jean Lesage Intl. Airport (YQB)

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Cheap Flights from St. Louis to Québec (STL-YQB)

Prices were available within the past 7 days and start at $179 for one-way flights and $391 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, Sep 13 - Mon, Sep 15
STL
St. Louis
YQB
Québec City
$391 Roundtrip, found 1 hour ago
$391
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Sat, Sep 13 from St. Louis to Québec City, returning Mon, Sep 15, priced at $391 found 1 hour ago
American Airlines
Sat, Sep 13 - Sun, Sep 14
STL
St. Louis
YQB
Québec City
$415 Roundtrip, found 1 hour ago
$415
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Sat, Sep 13 from St. Louis to Québec City, returning Sun, Sep 14, priced at $415 found 1 hour ago
American Airlines
Thu, Oct 2 - Wed, Oct 8
STL
St. Louis
YQB
Québec City
$425 Roundtrip, found 5 hours ago
$425
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Thu, Oct 2 from St. Louis to Québec City, returning Wed, Oct 8, priced at $425 found 5 hours ago
American Airlines
Thu, Sep 11 - Sun, Sep 14
STL
St. Louis
YQB
Québec City
$439 Roundtrip, found 1 hour ago
$439
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Thu, Sep 11 from St. Louis to Québec City, returning Sun, Sep 14, priced at $439 found 1 hour ago
United
Wed, Oct 1 - Tue, Oct 7
STL
St. Louis
YQB
Québec City
$442 Roundtrip, found 5 hours ago
$442
Roundtrip
found 5 hours ago
Select United flight, departing Wed, Oct 1 from St. Louis to Québec City, returning Tue, Oct 7, priced at $442 found 5 hours ago
United
Sat, Oct 4 - Wed, Oct 8
STL
St. Louis
YQB
Québec City
$447 Roundtrip, found 1 hour ago
$447
Roundtrip
found 1 hour ago
Select United flight, departing Sat, Oct 4 from St. Louis to Québec City, returning Wed, Oct 8, priced at $447 found 1 hour ago
American Airlines
Thu, Sep 11 - Tue, Sep 16
STL
St. Louis
YQB
Québec City
$450 Roundtrip, found 1 hour ago
$450
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Thu, Sep 11 from St. Louis to Québec City, returning Tue, Sep 16, priced at $450 found 1 hour ago
United
Sat, Oct 4 - Wed, Oct 8
STL
St. Louis
YQB
Québec City
$452 Roundtrip, found 1 hour ago
$452
Roundtrip
found 1 hour ago
Select United flight, departing Sat, Oct 4 from St. Louis to Québec City, returning Wed, Oct 8, priced at $452 found 1 hour ago
United
Sat, Oct 4 - Wed, Oct 8
STL
St. Louis
YQB
Québec City
$454 Roundtrip, found 1 hour ago
$454
Roundtrip
found 1 hour ago
Select United flight, departing Sat, Oct 4 from St. Louis to Québec City, returning Wed, Oct 8, priced at $454 found 1 hour ago
Air Canada
Sat, Oct 4 - Wed, Oct 8
STL
St. Louis
YQB
Québec City
$506 Roundtrip, found 1 hour ago
$506
Roundtrip
found 1 hour ago
Select Air Canada flight, departing Sat, Oct 4 from St. Louis to Québec City, returning Wed, Oct 8, priced at $506 found 1 hour ago

Find the cheapest month to fly from St. Louis (STL) to Québec City (YQB)

January is typically the cheapest month to fly

From $345 - $770 per traveler.

Graph displaying average flight prices per month

Alternative airports near Québec City

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Jean Lesage Intl. YQB. Cheapest and Closest option available. Average driving time to city center is 16 minutes. Flights from $534
YQB
Jean Lesage Intl.
CheapestClosest
Average driving time to city center16 min
Flights from $534
Flights from St. Louis (STL) to Québec (YQB)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Jean Lesage Intl.
Airlines serving
Air Canada, American Airlines, United
Roundtrip price
$391
Distance
1107 mi

St. Louis to Québec Flights

The cheapest times to fly from St. Louis to Québec

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Québec are during the month of September. You can find some of the cheapest flights from St. Louis to Québec with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Québec

Sunday is one of the best days to book for cheap flights from St. Louis to Québec: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Québec

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Québec in 2025. You can also book with separate airlines for your outbound and return journeys, from $179 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Québec flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Québec airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Jean Lesage Intl. Airport (YQB) cost?
Secure a cheap one-way flight from $179 or cheap return flight from $391 from Lambert-St. Louis Intl. Airport (STL) to Jean Lesage Intl. Airport (YQB) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Jean Lesage Intl. Airport (YQB)?
Flying in September may help you find better deals, as it's the cheapest month for flights between STL and YQB. You'll often find the lowest prices during the off-season.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Jean Lesage Intl. Airport (YQB)?
To find the cheapest airline flying from STL to YQB, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Jean Lesage Intl. Airport (YQB)?
Direct flights from Lambert-St. Louis Intl. Airport (STL) to Jean Lesage Intl. Airport (YQB) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STL to YQB?
Generally you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can vary based on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Jean Lesage Intl. Airport (YQB)?
To avoid possible delays on the Lambert-St. Louis Intl. Airport (STL) to Jean Lesage Intl. Airport (YQB) route, aim to fly before 3 PM. Later departures are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Jean Lesage Intl. Airport (YQB) last-minute?
Last-minute fares from STL to YQB are typically more expensive. To secure the best rates, start searching for flights ahead of time. That being said, if your travel plans are flexible, it's possible to land a cheap ticket just before your departure.
Is it cheaper to book a STL to YQB flight and hotel package?
You can save money by securing a STL to YQB flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. Once you've chosen your preferred accommodations and flights, consider adding extras including tours, car rentals and activities.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Jean Lesage Intl. Airport (YQB)?
If you reserved your STL to YQB flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

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*Available to One Key members.