$175 Cheap Flights from St. Louis (STL) to Edmonton (YEG)

View $175 flight on Tue, Sep 9, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Edmonton Intl. Airport (YEG)

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Cheap Flights from St. Louis to Edmonton (STL-YEG)

Prices were available within the past 7 days and start at $175 for one-way flights and $366 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Sep 13 - Sat, Sep 20
STL
St. Louis
YEG
Edmonton
$366 Roundtrip, found 1 hour ago
$366
Roundtrip
found 1 hour ago
Select United flight, departing Sat, Sep 13 from St. Louis to Edmonton, returning Sat, Sep 20, priced at $366 found 1 hour ago
Alaska Airlines
Mon, Sep 8 - Thu, Sep 11
STL
St. Louis
YEG
Edmonton
$379 Roundtrip, found 1 hour ago
$379
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Mon, Sep 8 from St. Louis to Edmonton, returning Thu, Sep 11, priced at $379 found 1 hour ago
Alaska Airlines
Sun, Sep 14 - Mon, Sep 15
STL
St. Louis
YEG
Edmonton
$382 Roundtrip, found 1 hour ago
$382
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Sun, Sep 14 from St. Louis to Edmonton, returning Mon, Sep 15, priced at $382 found 1 hour ago
Alaska Airlines
Sat, Sep 13 - Mon, Sep 15
STL
St. Louis
YEG
Edmonton
$384 Roundtrip, found 1 hour ago
$384
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Sat, Sep 13 from St. Louis to Edmonton, returning Mon, Sep 15, priced at $384 found 1 hour ago
United
Wed, Oct 8 - Sat, Oct 11
STL
St. Louis
YEG
Edmonton
$390 Roundtrip, found 4 days ago
$390
Roundtrip
found 4 days ago
Select United flight, departing Wed, Oct 8 from St. Louis to Edmonton, returning Sat, Oct 11, priced at $390 found 4 days ago
Alaska Airlines
Sun, Sep 14 - Wed, Sep 17
STL
St. Louis
YEG
Edmonton
$392 Roundtrip, found 1 hour ago
$392
Roundtrip
found 1 hour ago
Select Alaska Airlines flight, departing Sun, Sep 14 from St. Louis to Edmonton, returning Wed, Sep 17, priced at $392 found 1 hour ago
United
Wed, Oct 8 - Sat, Oct 11
STL
St. Louis
YEG
Edmonton
$392 Roundtrip, found 4 days ago
$392
Roundtrip
found 4 days ago
Select United flight, departing Wed, Oct 8 from St. Louis to Edmonton, returning Sat, Oct 11, priced at $392 found 4 days ago
Delta
Fri, Sep 12 - Sat, Sep 20
STL
St. Louis
YEG
Edmonton
$480 Roundtrip, found 1 hour ago
$480
Roundtrip
found 1 hour ago
Select Delta flight, departing Fri, Sep 12 from St. Louis to Edmonton, returning Sat, Sep 20, priced at $480 found 1 hour ago
Air Canada
Wed, Aug 27 - Sun, Aug 31
STL
St. Louis
YEG
Edmonton
$596 Roundtrip, found 23 hours ago
$596
Roundtrip
found 23 hours ago
Select Air Canada flight, departing Wed, Aug 27 from St. Louis to Edmonton, returning Sun, Aug 31, priced at $596 found 23 hours ago
WestJet
Wed, Aug 27 - Sat, Aug 30
STL
St. Louis
YEG
Edmonton
$598 Roundtrip, found 1 day ago
$598
Roundtrip
found 1 day ago
Select WestJet flight, departing Wed, Aug 27 from St. Louis to Edmonton, returning Sat, Aug 30, priced at $598 found 1 day ago

Find the cheapest month to fly from St. Louis (STL) to Edmonton (YEG)

September is typically the cheapest month to fly

From $355 - $681 per traveler.

Graph displaying average flight prices per month

Alternative airports near Edmonton

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

Select flight to Edmonton Intl. YEG. Cheapest option available. Average driving time to city center is 27 minutes. Flights from $558
YEG
Edmonton Intl.
Cheapest
Average driving time to city center27 min
Flights from $558
Flights from St. Louis (STL) to Edmonton (YEG)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Edmonton Intl.
Airlines serving
Air Canada, Alaska Airlines, American Airlines, Delta, United, WestJet
Roundtrip price
$365
Distance
1488 mi

St. Louis to Edmonton Flights

The cheapest times to fly from St. Louis to Edmonton

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

 

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

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

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 Edmonton in 2025. You can also book with separate airlines for your outbound and return journeys, from $175 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 Edmonton 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 Edmonton 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 Edmonton Intl. Airport (YEG) cost?
Snag a cheap one-way flight from $175 or cheap return flight from $366 from Lambert-St. Louis Intl. Airport (STL) to Edmonton Intl. Airport (YEG) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Edmonton Intl. Airport (YEG)?
September is the least expensive month to fly from STL to YEG. Traveling during an off-peak travel window is often the key to landing a great deal.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Edmonton Intl. Airport (YEG)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll take you from STL to YEG. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Edmonton Intl. Airport (YEG)?
Direct flights from Lambert-St. Louis Intl. Airport (STL) to Edmonton Intl. Airport (YEG) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STL to YEG?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can change depending on a number of factors, including the time of year and airline.*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 Edmonton Intl. Airport (YEG)?
To avoid possible delays on the Lambert-St. Louis Intl. Airport (STL) to Edmonton Intl. Airport (YEG) route, aim to travel before 3 PM. Later flights 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 Edmonton Intl. Airport (YEG) last-minute?
Last-minute bookings from STL to YEG are usually more expensive. For the lowest rates, start looking for flights early. That being said, if your travel plans are flexible, it's possible to find a cheap ticket right before you leave.
Is it cheaper to book a STL to YEG flight and hotel package?
You'll typically save money by booking a STL to YEG 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 selected your ideal flights and accommodations, you can add extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Edmonton Intl. Airport (YEG)?
Typically, it's possible to cancel or reschedule your STL to YEG flight. However, if it's been more than 24 hours since booking, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible 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.