Cheap Flights from St Louis (STL) to Prague (PRG)

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Compare St Louis to Prague flight deals

Find the cheapest month or even day of the year to fly to Prague

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Find the cheapest month to fly from St Louis to Prague

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like St Louis to Prague flights are currently cheapest in July.

St Louis to Prague: Alternative routes

Compare routes from St Louis to Prague below. You may find an airport to fly into that's cheaper, faster, or easier than Prague.

St Louis to Prague: Flight information

The things to know before you go.
Cheapest flight found$254
Cheapest month to flyJuly

Finding cheap flights from St Louis to Prague: Frequently asked questions

The best price we found for a round-trip flight from St Louis to Prague is $644. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from St Louis to Prague. But we found flights with one or more stops from $644.
There are no flights flying from St Louis to Prague, as of May 2025.
The cheapest month to fly from St Louis to Prague is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from St Louis Airport to Prague Airport on Tuesday, February 17, 2026.
No airlines currently offer direct flights between St Louis Airport and Prague Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Prague but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Prague is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Delta offers the cheapest flight tickets to Prague.

Flying from Lambert-St. Louis International Airport (STL) to Vaclav Havel Airport Prague (PRG): what you need to know

  • Prague is six hours ahead of St Louis and follows the UTC+1 timezone.

  • Your STL to PRG flight won't wait if you're late, so be at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • Flying during a peak month such as July? Public holidays and other popular seasons can result in longer lines at check-in and security. Play it safe and get there up to four hours before international flights and two hours before domestic departures.

  • Break up your flight or explore another city along the way with a stopover. Just deselect 'Direct flights only' to see your options when searching for tickets from Lambert-St. Louis International Airport to Vaclav Havel Airport Prague. Many passengers pass through Frankfurt Airport on this route.

How to find the cheapest flights from Lambert-St. Louis International Airport (STL) to Vaclav Havel Airport Prague (PRG)

  • The cheapest price we've seen for a one-way Lambert-St. Louis International Airport to Vaclav Havel Airport Prague flight is $255. A return plane ticket right now is $644. Depending on the availability when you book, these fares can change.

  • To pick up cheap tickets from STL to PRG, book as early as you can. Airlines generally offer lower fares when flights are first released.

  • The 'Whole month' tool shows you the cheapest flights from Lambert-St. Louis International Airport to Vaclav Havel Airport Prague across the entire month. It's a great way to snap up a bargain if your trip dates aren't set in stone.

  • Cut down on the time spent looking for cheap flights from STL to PRG by creating a Price Alert. You'll get an email or notification through the app when a special offer becomes available.

  • Secure the ideal flight for you with the help of the filters. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Lambert-St. Louis International Airport to Vaclav Havel Airport Prague, use the 'Sort by' tool. You can also filter results by airline, departure and arrival times, and journey duration.

Handy information about Lambert-St. Louis International Airport (STL)

Arriving at Vaclav Havel Airport Prague (PRG)

Getting from Vaclav Havel Airport Prague (PRG) to central Prague

  • From Vaclav Havel Airport Prague, Prague is approximately 11 miles away. It takes around 30 minutes to reach the center driving.

  • It typically takes 50 minutes when traveling by public transport.

When to fly to Vaclav Havel Airport Prague (PRG)

  • The quietest month for a flight from Lambert-St. Louis International Airport to Vaclav Havel Airport Prague is April, while July is the most popular. Choose the best time to go to Prague based on whether you prefer a laid-back vibe or a more bustling atmosphere.

  • Book your flight from Lambert-St. Louis International Airport to Vaclav Havel Airport Prague for July if you'd like to visit Prague during its warmest month. Expect temperatures of between 54ºF and 81ºF.

  • If you want cooler conditions, search for a cheap ticket from STL to PRG in January. Average temperatures are between 18ºF and 41ºF then.

Explore more of Czechia

  • You've done Prague, now it's time to explore more of Czechia. Travel about 110 miles south-east to Brno to tick off its must-visit sights. From Brno astronomical clock to Old Town Hall and Moravian Museum, there's plenty to keep you busy.

  • Around 170 miles east of Prague, Ostrava is another essential stop in Czechia. Start your sightseeing at Silesian-Ostrava Castle, National Cultural Monument Lower Vitkovice and Bolt Tower Cafe.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.