$176 Cheap Flights from St. Louis (STL) to Québec (YQB)

View $176 flight on Sun, Jul 6, 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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Find available prices by choosing your travel dates.

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

Prices were available within the past 7 days and start at $176 for one-way flights and $382 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Oct 19 - Thu, Oct 23
STL
St. Louis
YQB
Québec City
$382 Roundtrip, found 5 days ago
$382
Roundtrip
found 5 days ago
Select United flight, departing Sun, Oct 19 from St. Louis to Québec City, returning Thu, Oct 23, priced at $382 found 5 days ago
American Airlines
Wed, Aug 27 - Sun, Aug 31
STL
St. Louis
YQB
Québec City
$390 Roundtrip, found 5 days ago
$390
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Aug 27 from St. Louis to Québec City, returning Sun, Aug 31, priced at $390 found 5 days ago
Air Canada
Mon, May 5 - Thu, May 8
STL
St. Louis
YQB
Québec City
$390 Roundtrip, found 4 days ago
$390
Roundtrip
found 4 days ago
Select Air Canada flight, departing Mon, May 5 from St. Louis to Québec City, returning Thu, May 8, priced at $390 found 4 days ago
United
Mon, May 5 - Thu, May 8
STL
St. Louis
YQB
Québec City
$397 Roundtrip, found 4 days ago
$397
Roundtrip
found 4 days ago
Select United flight, departing Mon, May 5 from St. Louis to Québec City, returning Thu, May 8, priced at $397 found 4 days ago
United
Mon, May 26 - Thu, May 29
STL
St. Louis
YQB
Québec City
$397 Roundtrip, found 4 days ago
$397
Roundtrip
found 4 days ago
Select United flight, departing Mon, May 26 from St. Louis to Québec City, returning Thu, May 29, priced at $397 found 4 days ago
United
Mon, May 26 - Thu, May 29
STL
St. Louis
YQB
Québec City
$399 Roundtrip, found 4 days ago
$399
Roundtrip
found 4 days ago
Select United flight, departing Mon, May 26 from St. Louis to Québec City, returning Thu, May 29, priced at $399 found 4 days ago
Air Canada
Tue, Jun 17 - Tue, Jul 1
STL
St. Louis
YQB
Québec City
$406 Roundtrip, found 5 days ago
$406
Roundtrip
found 5 days ago
Select Air Canada flight, departing Tue, Jun 17 from St. Louis to Québec City, returning Tue, Jul 1, priced at $406 found 5 days ago
United
Mon, May 5 - Thu, May 8
STL
St. Louis
YQB
Québec City
$406 Roundtrip, found 4 days ago
$406
Roundtrip
found 4 days ago
Select United flight, departing Mon, May 5 from St. Louis to Québec City, returning Thu, May 8, priced at $406 found 4 days ago
Air Canada
Sun, May 4 - Sun, May 11
STL
St. Louis
YQB
Québec City
$407 Roundtrip, found 5 days ago
$407
Roundtrip
found 5 days ago
Select Air Canada flight, departing Sun, May 4 from St. Louis to Québec City, returning Sun, May 11, priced at $407 found 5 days ago
WestJet
Fri, May 23 - Tue, May 27
STL
St. Louis
YQB
Québec City
$1,929 Roundtrip, found 4 days ago
$1,929
Roundtrip
found 4 days ago
Select WestJet flight, departing Fri, May 23 from St. Louis to Québec City, returning Tue, May 27, priced at $1,929 found 4 days ago

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Jean Lesage Intl. Airport (YQB) cost?
Discover the latest flight deals from STL to YQB by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from STL to YQB?
The cheapest flights from STL to YQB are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from STL to YQB?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from STL to YQB. Sort your results by “Price (lowest to highest)” to snap up a great deal.
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.
*Available to One Key members.