$195 Cheap Flights from St. Louis (STL) to Yakima (YKM)

View $195 flight on Mon, Feb 23, 2026Opens in a new window

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Yakima, WA (YKM-Yakima Air Terminal - McAllister Field)

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Cheap Flights from St. Louis to Yakima (STL-YKM)

Prices were available within the past 7 days and start at $195 for one-way flights and $412 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Fri, Jan 30 - Wed, Feb 4
STL
St. Louis
YKM
Yakima
$412 Roundtrip, found 4 hours ago
$412
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Fri, Jan 30 from St. Louis to Yakima, returning Wed, Feb 4, priced at $412 found 4 hours ago
Alaska Airlines
Fri, Jan 30 - Wed, Feb 4
STL
St. Louis
YKM
Yakima
$415 Roundtrip, found 4 hours ago
$415
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Fri, Jan 30 from St. Louis to Yakima, returning Wed, Feb 4, priced at $415 found 4 hours ago
Hawaiian Airlines
Sat, Nov 8 - Thu, Nov 13
STL
St. Louis
YKM
Yakima
$538 Roundtrip, found 6 days ago
$538
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Sat, Nov 8 from St. Louis to Yakima, returning Thu, Nov 13, priced at $538 found 6 days ago
Alaska Airlines
Mon, Dec 8 - Sat, Dec 13
STL
St. Louis
YKM
Yakima
$548 Roundtrip, found 17 hours ago
$548
Roundtrip
found 17 hours ago
Select Alaska Airlines flight, departing Mon, Dec 8 from St. Louis to Yakima, returning Sat, Dec 13, priced at $548 found 17 hours ago
Hawaiian Airlines
Fri, Nov 7 - Thu, Nov 13
STL
St. Louis
YKM
Yakima
$549 Roundtrip, found 6 days ago
$549
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Fri, Nov 7 from St. Louis to Yakima, returning Thu, Nov 13, priced at $549 found 6 days ago
Alaska Airlines
Fri, Nov 14 - Sun, Nov 16
STL
St. Louis
YKM
Yakima
$555 Roundtrip, found 5 days ago
$555
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri, Nov 14 from St. Louis to Yakima, returning Sun, Nov 16, priced at $555 found 5 days ago
Hawaiian Airlines
Sat, Nov 8 - Fri, Nov 14
STL
St. Louis
YKM
Yakima
$558 Roundtrip, found 6 days ago
$558
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Sat, Nov 8 from St. Louis to Yakima, returning Fri, Nov 14, priced at $558 found 6 days ago
Hawaiian Airlines
Fri, Nov 7 - Fri, Nov 14
STL
St. Louis
YKM
Yakima
$569 Roundtrip, found 6 days ago
$569
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Fri, Nov 7 from St. Louis to Yakima, returning Fri, Nov 14, priced at $569 found 6 days ago
Hawaiian Airlines
Thu, Nov 6 - Fri, Nov 14
STL
St. Louis
YKM
Yakima
$589 Roundtrip, found 6 days ago
$589
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Thu, Nov 6 from St. Louis to Yakima, returning Fri, Nov 14, priced at $589 found 6 days ago
American Airlines
Thu, Nov 6 - Thu, Nov 13
STL
St. Louis
YKM
Yakima
$817 Roundtrip, found 6 days ago
$817
Roundtrip
found 6 days ago
Select American Airlines flight, departing Thu, Nov 6 from St. Louis to Yakima, returning Thu, Nov 13, priced at $817 found 6 days ago

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Yakima Air Terminal - McAllister Field Airport (YKM) cost?
Lock in a cheap one-way flight from $195 or cheap return flight from $412 from Lambert-St. Louis Intl. Airport (STL) to Yakima Air Terminal - McAllister Field Airport (YKM) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Yakima Air Terminal - McAllister Field Airport (YKM)?
The cheapest month to fly from STL to YKM is January, when demand is low. Off-peak months are typically when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Yakima Air Terminal - McAllister Field Airport (YKM)?
To find the cheapest airline flying from STL to YKM, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Yakima Air Terminal - McAllister Field Airport (YKM)?
Nonstop flights from Lambert-St. Louis Intl. Airport (STL) to Yakima Air Terminal - McAllister Field Airport (YKM) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STL to YKM?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*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 Yakima Air Terminal - McAllister Field Airport (YKM)?
To reach Yakima Air Terminal - McAllister Field Airport (YKM) on schedule, pick a flight that leaves from Lambert-St. Louis Intl. Airport (STL) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Yakima Air Terminal - McAllister Field Airport (YKM) last-minute?
Booking your plane ticket from STL to YKM right before your journey is usually more expensive. However, if you're flexible with your departure dates and times, you could land a cheap last-minute fare.
Is it cheaper to book a STL to YKM flight and hotel package?
Compared with arranging flights and hotels separately, booking a STL to YKM flight and hotel package with Expedia could result in significant savings. What's more, having everything in one easy place will take the stress out of planning your trip. Simply pick your flights and select from our extensive range of stays, then personalize your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Yakima Air Terminal - McAllister Field Airport (YKM)?
It's generally possible to reschedule or cancel your STL to YKM flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Yakima Air Terminal - McAllister Field
Airlines serving
Alaska Airlines, American Airlines
Roundtrip price
$412
Distance
1613 mi

Book with confidence

St. Louis to Yakima Flights

The cheapest times to fly from St. Louis to Yakima

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

 

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

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

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 Yakima in 2025. You can also book with separate airlines for your outbound and return journeys, from $195 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 Yakima 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 Yakima 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 Yakima Flights

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*Available to One Key members.