$171 Cheap Flights from St. Louis (STL) to Kelowna (YLW)

View $171 flight on Sat, Nov 8, 2025Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Kelowna Intl. Airport (YLW)

Cheap Flights from St. Louis to Kelowna (STL-YLW)

Prices were available within the past 7 days and start at $171 for one-way flights and $389 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Oct 28 - Mon, Nov 10
STL
St. Louis
YLW
Kelowna
$389 Roundtrip, found 4 days ago
$389
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Tue, Oct 28 from St. Louis to Kelowna, returning Mon, Nov 10, priced at $389 found 4 days ago
Alaska Airlines
Wed, Oct 22 - Mon, Nov 10
STL
St. Louis
YLW
Kelowna
$399 Roundtrip, found 4 days ago
$399
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed, Oct 22 from St. Louis to Kelowna, returning Mon, Nov 10, priced at $399 found 4 days ago
Alaska Airlines
Fri, Jan 16 - Mon, Jan 19
STL
St. Louis
YLW
Kelowna
$399 Roundtrip, found 3 days ago
$399
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Fri, Jan 16 from St. Louis to Kelowna, returning Mon, Jan 19, priced at $399 found 3 days ago
Alaska Airlines
Wed, Oct 22 - Sun, Nov 9
STL
St. Louis
YLW
Kelowna
$409 Roundtrip, found 4 days ago
$409
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed, Oct 22 from St. Louis to Kelowna, returning Sun, Nov 9, priced at $409 found 4 days ago
Alaska Airlines
Sun, Feb 1 - Sat, Feb 7
STL
St. Louis
YLW
Kelowna
$409 Roundtrip, found 2 days ago
$409
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sun, Feb 1 from St. Louis to Kelowna, returning Sat, Feb 7, priced at $409 found 2 days ago
Alaska Airlines
Tue, Nov 25 - Mon, Dec 8
STL
St. Louis
YLW
Kelowna
$415 Roundtrip, found 4 days ago
$415
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Tue, Nov 25 from St. Louis to Kelowna, returning Mon, Dec 8, priced at $415 found 4 days ago
Delta
Fri, Nov 21 - Sat, Dec 6
STL
St. Louis
YLW
Kelowna
$540 Roundtrip, found 4 days ago
$540
Roundtrip
found 4 days ago
Select Delta flight, departing Fri, Nov 21 from St. Louis to Kelowna, returning Sat, Dec 6, priced at $540 found 4 days ago
United
Thu, Nov 27 - Mon, Dec 15
STL
St. Louis
YLW
Kelowna
$559 Roundtrip, found 4 days ago
$559
Roundtrip
found 4 days ago
Select United flight, departing Thu, Nov 27 from St. Louis to Kelowna, returning Mon, Dec 15, priced at $559 found 4 days ago
Air Canada
Sun, Oct 12 - Wed, Oct 29
STL
St. Louis
YLW
Kelowna
$721 Roundtrip, found 4 days ago
$721
Roundtrip
found 4 days ago
Select Air Canada flight, departing Sun, Oct 12 from St. Louis to Kelowna, returning Wed, Oct 29, priced at $721 found 4 days ago
American Airlines
Sat, Jun 6 - Sat, Jun 13
STL
St. Louis
YLW
Kelowna
$771 Roundtrip, found 3 days ago
$771
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat, Jun 6 from St. Louis to Kelowna, returning Sat, Jun 13, priced at $771 found 3 days ago

Alternative airports near Kelowna

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

Select flight to Kelowna Intl. YLW. Cheapest and Closest option available. Average driving time to city center is 17 minutes. Flights from $564
YLW
Kelowna Intl.
CheapestClosest
Average driving time to city center17 min
Flights from $564

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Kelowna Intl. Airport (YLW) cost?
Secure a cheap one-way flight from $171 or cheap return flight from $389 from Lambert-St. Louis Intl. Airport (STL) to Kelowna Intl. Airport (YLW) 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 Kelowna Intl. Airport (YLW)?
October is the most affordable month to fly from STL to YLW. Traveling during an off-peak travel window is often the key to finding better deals on flights.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Kelowna Intl. Airport (YLW)?
Use the filter tool on Expedia to compare different airlines and find the cheapest carrier that'll fly you from STL to YLW. Then, sort your results by "Price (lowest to highest)" to score a great deal.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Kelowna Intl. Airport (YLW)?
Nonstop flights from Lambert-St. Louis Intl. Airport (STL) to Kelowna Intl. Airport (YLW) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STL to YLW?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary based on a range of factors, including the carrier and season.*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 Kelowna Intl. Airport (YLW)?
Book a flight from Lambert-St. Louis Intl. Airport (STL) to Kelowna Intl. Airport (YLW) that leaves before 3 PM to reduce the risk of cancellations. Departures later than this 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 Kelowna Intl. Airport (YLW) last-minute?
Waiting until just before your departure to book a ticket from STL to YLW often results in higher prices. While you may find some last-minute deals, they're not always guaranteed. Keep your travel schedule open for a better chance of getting a bargain.
Is it cheaper to book a STL to YLW flight and hotel package?
Compared with arranging hotels and flights separately, booking a STL to YLW flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one place will take the hassle out of planning your trip. Simply pick your flights and choose from our wide range of stays, then personalize 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 Kelowna Intl. Airport (YLW)?
It's generally possible to cancel or reschedule your STL to YLW flight. However, if it's been more than 24 hours since booking, additional fees 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 more information on our Customer Service portal.

Travel information

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Kelowna Intl.
Airlines serving
Alaska Airlines, WestJet
Roundtrip price
$389
Distance
1614 mi

Book with confidence

Book with confidence

St. Louis to Kelowna Flights

The cheapest times to fly from St. Louis to Kelowna

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

 

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

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

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 Kelowna in 2025. You can also book with separate airlines for your outbound and return journeys, from $171 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 Kelowna 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 Kelowna 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.

 

St. Louis to Kelowna Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.