$326 Cheap Flights from St. Louis (STL) to Lethbridge (YQL)

View $326 flight on Tue, Mar 3, 2026Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Lethbridge, AB (YQL-Lethbridge County)

Cheap Flights from St. Louis to Lethbridge (STL-YQL)

Prices were available within the past 7 days and start at $326 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from St. Louis (STL) to Lethbridge (YQL)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Lethbridge County
Distance
1333 mi

St. Louis to Lethbridge Flights

The cheapest times to fly from St. Louis to Lethbridge

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 Lethbridge are during the month of . You can find some of the cheapest flights from St. Louis to Lethbridge with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from St. Louis to Lethbridge: 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 Lethbridge

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 Lethbridge in 2025. You can also book with separate airlines for your outbound and return journeys, from $326 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 Lethbridge 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 Lethbridge 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 Lethbridge County Airport (YQL) cost?
Lock in a cheap one-way flight from $326 or cheap return flight from Lambert-St. Louis Intl. Airport (STL) to Lethbridge County Airport (YQL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Lethbridge County Airport (YQL)?
is the most affordable month to fly from STL to YQL. Traveling outside of peak seasons is often the key to scoring lower fares.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Lethbridge County Airport (YQL)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll take you from STL to YQL. Then, sort your results by "Price (lowest to highest)" to pick up the best deal available.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Lethbridge County Airport (YQL)?
You'll have to book a flight with a layover when traveling from Lambert-St. Louis Intl. Airport (STL) to Lethbridge County Airport (YQL). There are no daily direct flights on this route. However, just filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from STL to YQL?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*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 Lethbridge County Airport (YQL)?
Opt for a flight from Lambert-St. Louis Intl. Airport (STL) to Lethbridge County Airport (YQL) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures after this time are on average 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 Lethbridge County Airport (YQL) last-minute?
Holding off until just before your trip to book a flight from STL to YQL generally means paying more. Although you may find some last-minute discounts, they're not always guaranteed. Be flexible with your travel plans to boost your chances of snagging a bargain.
Is it cheaper to book a STL to YQL flight and hotel package?
Compared with arranging hotels and flights separately, booking a STL to YQL flight and hotel package with Expedia could result in significant savings. What's more, managing everything in one place takes the hassle out of travel planning. Just pick your flights and choose from our extensive range of stays, then customize your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Lethbridge County Airport (YQL)?
It's usually possible to cancel or reschedule your STL to YQL flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.