$187 Cheap Flights from St. Louis (STL) to Kelowna (YLW)

View $187 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 $187 for one-way flights and $421 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, Sep 24 - Tue, Oct 7
STL
St. Louis
YLW
Kelowna
$421 Roundtrip, found 4 days ago
$421
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed, Sep 24 from St. Louis to Kelowna, returning Tue, Oct 7, priced at $421 found 4 days ago
Alaska Airlines
Sun, Sep 28 - Sat, Oct 4
STL
St. Louis
YLW
Kelowna
$436 Roundtrip, found 4 days ago
$436
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sun, Sep 28 from St. Louis to Kelowna, returning Sat, Oct 4, priced at $436 found 4 days ago
Alaska Airlines
Sun, Sep 28 - Fri, Oct 10
STL
St. Louis
YLW
Kelowna
$442 Roundtrip, found 4 days ago
$442
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sun, Sep 28 from St. Louis to Kelowna, returning Fri, Oct 10, priced at $442 found 4 days ago
Alaska Airlines
Sat, Sep 27 - Fri, Oct 3
STL
St. Louis
YLW
Kelowna
$449 Roundtrip, found 1 day ago
$449
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Sep 27 from St. Louis to Kelowna, returning Fri, Oct 3, priced at $449 found 1 day ago
Alaska Airlines
Wed, Sep 24 - Sun, Oct 5
STL
St. Louis
YLW
Kelowna
$456 Roundtrip, found 4 days ago
$456
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Wed, Sep 24 from St. Louis to Kelowna, returning Sun, Oct 5, priced at $456 found 4 days ago
Alaska Airlines
Sun, Sep 28 - Mon, Oct 13
STL
St. Louis
YLW
Kelowna
$460 Roundtrip, found 4 days ago
$460
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sun, Sep 28 from St. Louis to Kelowna, returning Mon, Oct 13, priced at $460 found 4 days ago
Delta
Wed, Sep 24 - Sat, Sep 27
STL
St. Louis
YLW
Kelowna
$461 Roundtrip, found 4 days ago
$461
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Sep 24 from St. Louis to Kelowna, returning Sat, Sep 27, priced at $461 found 4 days ago
United
Sat, Sep 27 - Thu, Oct 2
STL
St. Louis
YLW
Kelowna
$515 Roundtrip, found 4 days ago
$515
Roundtrip
found 4 days ago
Select United flight, departing Sat, Sep 27 from St. Louis to Kelowna, returning Thu, Oct 2, priced at $515 found 4 days ago
American Airlines
Sat, Sep 27 - Fri, Oct 3
STL
St. Louis
YLW
Kelowna
$746 Roundtrip, found 1 day ago
$746
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Sep 27 from St. Louis to Kelowna, returning Fri, Oct 3, priced at $746 found 1 day ago
Air Canada
Sun, Aug 24 - Sat, Sep 6
STL
St. Louis
YLW
Kelowna
$857 Roundtrip, found 4 days ago
$857
Roundtrip
found 4 days ago
Select Air Canada flight, departing Sun, Aug 24 from St. Louis to Kelowna, returning Sat, Sep 6, priced at $857 found 4 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 $629
YLW
Kelowna Intl.
CheapestClosest
Average driving time to city center17 min
Flights from $629
Flights from St. Louis (STL) to Kelowna (YLW)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Kelowna Intl.
Airlines serving
Air Canada, Alaska Airlines, American Airlines, United, WestJet
Roundtrip price
$420
Distance
1614 mi

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 September. 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 $187 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.

 

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 $187 or cheap return flight from $421 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)?
September 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.

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*Available to One Key members.