$1,551 Cheap Flights from Kosice (KSC) to St. Louis (STL)

View $1,551 flight on Wed, Jul 8, 2026Opens in a new window

Popular airlines from Kosice (KSC-Barca) to St. Louis Lambert Intl. Airport (STL)

Cheap Flights from Kosice to St. Louis (KSC-STL)

Prices were available within the past 7 days and start at $1,551 for one-way flights and $800 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Austrian Airlines
Thu, Jan 8 - Sun, May 10
KSC
Kosice
STL
St. Louis
$800 Roundtrip, found 2 days ago
$800
Roundtrip
found 2 days ago
Select Austrian Airlines flight, departing Thu, Jan 8 from Kosice to St. Louis, returning Sun, May 10, priced at $800 found 2 days ago
Austrian Airlines
Thu, Jan 8 - Sun, May 10
KSC
Kosice
STL
St. Louis
$802 Roundtrip, found 2 days ago
$802
Roundtrip
found 2 days ago
Select Austrian Airlines flight, departing Thu, Jan 8 from Kosice to St. Louis, returning Sun, May 10, priced at $802 found 2 days ago
Austrian Airlines
Thu, Jan 8 - Sun, May 10
KSC
Kosice
STL
St. Louis
$824 Roundtrip, found 2 days ago
$824
Roundtrip
found 2 days ago
Select Austrian Airlines flight, departing Thu, Jan 8 from Kosice to St. Louis, returning Sun, May 10, priced at $824 found 2 days ago
Austrian Airlines
Thu, Jan 8 - Sun, May 10
KSC
Kosice
STL
St. Louis
$826 Roundtrip, found 2 days ago
$826
Roundtrip
found 2 days ago
Select Austrian Airlines flight, departing Thu, Jan 8 from Kosice to St. Louis, returning Sun, May 10, priced at $826 found 2 days ago
Austrian Airlines
Fri, Jan 9 - Sun, May 10
KSC
Kosice
STL
St. Louis
$859 Roundtrip, found 2 days ago
$859
Roundtrip
found 2 days ago
Select Austrian Airlines flight, departing Fri, Jan 9 from Kosice to St. Louis, returning Sun, May 10, priced at $859 found 2 days ago
Austrian Airlines
Fri, Jan 9 - Sun, May 10
KSC
Kosice
STL
St. Louis
$861 Roundtrip, found 2 days ago
$861
Roundtrip
found 2 days ago
Select Austrian Airlines flight, departing Fri, Jan 9 from Kosice to St. Louis, returning Sun, May 10, priced at $861 found 2 days ago
Swiss International Air Lines
Fri, Jan 9 - Sun, May 10
KSC
Kosice
STL
St. Louis
$875 Roundtrip, found 2 days ago
$875
Roundtrip
found 2 days ago
Select Swiss International Air Lines flight, departing Fri, Jan 9 from Kosice to St. Louis, returning Sun, May 10, priced at $875 found 2 days ago
Swiss International Air Lines
Fri, Jan 9 - Sun, May 10
KSC
Kosice
STL
St. Louis
$877 Roundtrip, found 2 days ago
$877
Roundtrip
found 2 days ago
Select Swiss International Air Lines flight, departing Fri, Jan 9 from Kosice to St. Louis, returning Sun, May 10, priced at $877 found 2 days ago
Austrian Airlines
Fri, Jan 9 - Sun, May 10
KSC
Kosice
STL
St. Louis
$882 Roundtrip, found 2 days ago
$882
Roundtrip
found 2 days ago
Select Austrian Airlines flight, departing Fri, Jan 9 from Kosice to St. Louis, returning Sun, May 10, priced at $882 found 2 days ago
Lufthansa
Thu, Jan 8 - Sun, May 10
KSC
Kosice
STL
St. Louis
$926 Roundtrip, found 2 days ago
$926
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Thu, Jan 8 from Kosice to St. Louis, returning Sun, May 10, priced at $926 found 2 days ago

Frequently asked questions

How much does a flight from Barca Airport (KSC) to Lambert-St. Louis Intl. Airport (STL) cost?
Get a cheap one-way flight from $1,551 or cheap return flight from $800 from Barca Airport (KSC) to Lambert-St. Louis Intl. Airport (STL) 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 Barca Airport (KSC) to Lambert-St. Louis Intl. Airport (STL)?
Traveling in January can help you save, as it's the cheapest month for flights between KSC and STL. You'll usually find the lowest fares during the off-season.
What is the cheapest airline that flies from Barca Airport (KSC) to Lambert-St. Louis Intl. Airport (STL)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest KSC to STL flight.
How many flights per day from Barca Airport (KSC) to Lambert-St. Louis Intl. Airport (STL)?
You'll need to catch a flight with a layover when traveling from Barca Airport (KSC) to Lambert-St. Louis Intl. Airport (STL). There are no daily direct flights on this route. However, simply filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from KSC to STL?
You'll generally find Tuesday the quietest day for flights, while Fridays are often 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 Barca Airport (KSC) to Lambert-St. Louis Intl. Airport (STL)?
To land at Lambert-St. Louis Intl. Airport (STL) without delays, opt for a flight that leaves from Barca Airport (KSC) before 3 PM. The chance 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 Barca Airport (KSC) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Booking your ticket from KSC to STL right before your trip is usually more expensive. But if there's some wiggle room with your travel times and dates, you could land a cheap last-minute fare.
Is it cheaper to book a KSC to STL flight and hotel package?
You can save money by securing a KSC to STL flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. Once you've selected your preferred flights and accommodations, consider adding extras like activities, car rentals and tours.
Can I cancel or change the date of my flight from Barca Airport (KSC) to Lambert-St. Louis Intl. Airport (STL)?
If you reserved your KSC to STL flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for further details.

Travel information

Travel information

Origin airport
Barca
Destination airport
Lambert-St. Louis Intl.
Roundtrip price
$799
Distance
5093 mi

Book with confidence

Book with confidence

Kosice to St. Louis Flights

The cheapest times to fly from Kosice to St. Louis

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

 

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

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

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 Kosice to St. Louis in 2025. You can also book with separate airlines for your outbound and return journeys, from $1,551 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 Kosice to St. Louis 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 Kosice to St. Louis 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.

 

Kosice to St. Louis Flights

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Explore a world of travel with Expedia

*Available to One Key members.