Cheap Flights from St. Louis (STL) to Kaunas (KUN)

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Kaunas (KUN-Kaunas Intl.)

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Kaunas Intl. Airport (KUN) cost?
Grab a cheap one-way flight or cheap return flight from Lambert-St. Louis Intl. Airport (STL) to Kaunas Intl. Airport (KUN) 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 Kaunas Intl. Airport (KUN)?
Traveling in may help you find better deals, as it's the cheapest month for flights between STL and KUN. You'll often find the lowest fares during off-peak months.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Kaunas Intl. Airport (KUN)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll take you from STL to KUN. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Kaunas Intl. Airport (KUN)?
There are no daily direct flights from Lambert-St. Louis Intl. Airport (STL) to Kaunas Intl. Airport (KUN). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from STL to KUN?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change 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 Kaunas Intl. Airport (KUN)?
Select a flight from Lambert-St. Louis Intl. Airport (STL) to Kaunas Intl. Airport (KUN) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Later departures have a 22% higher chance of being canceled, on average.**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 Kaunas Intl. Airport (KUN) last-minute?
Booking your flight from STL to KUN just before your getaway is usually more expensive. But if you're flexible with your schedule, you could land a cheap last-minute fare.
Is it cheaper to book a STL to KUN flight and hotel package?
You can save money by securing a STL to KUN 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 everything in one convenient place. After selecting your ideal accommodations and flights, you can add extras such as tours, activities and car rentals.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Kaunas Intl. Airport (KUN)?
You can usually reschedule or cancel your STL to KUN flight. However, for bookings made more than 24 hours ago, additional fees 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 further details on our Customer Service portal.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Kaunas Intl.
Distance
4898 mi

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St. Louis to Kaunas Flights

The cheapest times to fly from St. Louis to Kaunas

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

 

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

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

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

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*Available to One Key members.