Cheap flights from St Louis to Prague

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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Flight deals from St Louis to Prague

Looking for a cheap last-minute deal or the best round-trip flight from St Louis Airport to Prague Airport? If you want to travel next month, round-trip fares start from $765. Find the lowest prices on one-way and round-trip tickets right here.

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 August.

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$762
Cheapest month to flyAugust

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 $762. 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 $765.
There are no flights flying from St Louis to Prague, as of July 2026.
The cheapest month to fly from St Louis to Prague is usually August.
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 Sunday, August 9, 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, Frontier Airlines offers the cheapest flight tickets to Prague.

Flying from St Louis Airport (STL) to Prague Airport (PRG): what you need to know

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

  • For a smooth journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This will give you enough time to board your STL to PRG flight.

  • Traveling during a peak month such as July? Major public holidays and other popular periods can result in longer lines at security. Be extra cautious and get there up to four hours ahead of international flights and two hours before a domestic departure.

  • Opt for a stopover if you'd love to break up your flight. Just uncheck 'Direct flights only' to see all your options for tickets from St Louis Airport to Prague Airport. Frankfurt am Main Airport is a popular stopover on the STL to PRG route.

Handy information about St Louis Airport (STL)

Arriving at Prague Airport (PRG)

Getting from Prague Airport (PRG) to central Prague

  • Prague Airport to the center of Prague has a drive time of about 25 minutes. It's approximately 18 kilometers away.

  • It takes around 35 minutes if you're traveling on public transport.

When to fly to Prague Airport (PRG)

  • It's time to pick your travel dates for your flight from St Louis Airport to Prague Airport. September is the most popular month to head to Prague. If you like a quieter vibe, go in March.

  • Before locking in your flight from St Louis Airport to Prague Airport, think about the type of weather you like. August is the warmest month in Prague, with temperatures ranging from 12ºC (54ºF) to 27ºC (81ºF).

  • Look for cheap tickets from STL to PRG in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between -8ºC (18ºF) and 5ºC (41ºF) on average.

Explore more of Czechia

  • You've done Prague, now it's time to discover other parts of Czechia. Journey around 177 kilometers south-east to Brno to check off its popular sights. From Tugendhat Villa to Botanicka Zahrada (Hortus Botanicus) and Špilberk Castle, you'll have a full itinerary ahead.

  • If you're eager to discover another corner of Czechia, head for Ostrava, roughly 274 kilometers east of Prague. Landek, Landek Park and Dolní Vítkovice are key highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.