Which layover airport offers the lowest fares from St. Louis to Prague?

Flights via London (LHR) offer the lowest average round-trip price of $714.

Which airport is the most popular layover for flights between St. Louis and Prague?

Frankfurt am Main (FRA) was the most common stop: 55% of momondo users choosing 1-stop flights on this route connected there.

What is the cheapest airline that flies from Lambert-St Louis to Václav Havel Prague?

Lufthansa, American Airlines, and United Airlines are the most popular carriers operating from Lambert-St Louis to Václav Havel Prague

What airlines fly to Prague?

Lufthansa, United Airlines and Delta are the top three most popular airlines that fly to Prague from St. Louis according to our data. Lufthansa is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Prague. Keep in mind that there are 6 different airlines that fly to Prague on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest travel time from St. Louis to Prague?

Flights connecting via Frankfurt am Main (FRA) have the shortest average one-way travel time: 11h 48m.

Which layover airport has the shortest connection time from St. Louis to Prague?

Frankfurt am Main (FRA) has the shortest average layover time for this route: 3h 59m.

When did momondo last update prices for flights from Lambert-St Louis Airport to Václav Havel Prague Airport?

Prices for flights from Lambert-St Louis Airport to Václav Havel Prague Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Lambert-St Louis Airport to Václav Havel Prague Airport?

The number of operators available for flights from Lambert-St Louis Airport to Václav Havel Prague Airport is 6 as of November 2025.

How old do you have to be to fly from Lambert-St Louis Airport to Václav Havel Prague Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Václav Havel Prague Airport.

What documentation or ID do you need to fly to Václav Havel Prague Airport?

The travel and health documents you'll need for your trip to Václav Havel Prague Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Václav Havel Prague Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$447 Cheap Flights from St. Louis to Prague in 2025/26

Q: What is the typical price of a round-trip flight between St. Louis and Prague?

Prices are currently low for flights on this route. Typical prices usually range from $714 to $1,125. The lowest price recently found on this route was $654.

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from St. Louis to Prague

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:05 pm - 1:05 pmSTL-PRG

15h 00m2 stops

6:00 am - 3:24 pmPRG-STL

16h 24m2 stops

$654Air Canada

Find Deal

vie., mar. 27 - mar., mar. 31

4:50 pm - 2:05 pmSTL-PRG

15h 15m1 stop

9:10 am - 7:25 pmPRG-STL

17h 15m2 stops

$663United Airlines

Find Deal

vie., mar. 27 - mar., mar. 31

10:00 pm - 5:00 pmSTL-PRG

12h 00m1 stop

5:45 pm - 7:30 pmPRG-STL

32h 45m1 stop

$744British Airways

Find Deal

dom., may. 3 - sáb., may. 9

4:50 pm - 2:05 pmSTL-PRG

15h 15m1 stop

6:00 am - 2:18 pmPRG-STL

15h 18m2 stops

$753United Airlines

Find Deal

vie., mar. 27 - mar., mar. 31

4:50 pm - 9:50 amSTL-PRG

11h 00m1 stop

6:50 pm - 1:30 pmPRG-STL

25h 40m1 stop

$764Lufthansa

Find Deal

vie., mar. 27 - mar., mar. 31

1:30 pm - 12:45 pmSTL-PRG

16h 15m2 stops

6:10 am - 1:30 pmPRG-STL

14h 20m1 stop

$771Multiple Airlines

Find Deal

vie., may. 1 - dom., may. 10

12:56 pm - 1:35 pmSTL-PRG

17h 39m2 stops

5:45 pm - 7:30 pmPRG-STL

32h 45m1 stop

$773British Airways

Find Deal

dom., may. 3 - sáb., may. 9

3:30 pm - 1:40 pmSTL-PRG

15h 10m1 stop

6:10 am - 1:30 pmPRG-STL

14h 20m1 stop

$779Lufthansa

Find Deal

vie., may. 1 - dom., may. 10

1:30 pm - 4:05 pmSTL-PRG

19h 35m2 stops

7:30 am - 6:25 pmPRG-STL

17h 55m2 stops

$789Multiple Airlines

Find Deal

vie., may. 1 - dom., may. 10

6:29 am - 8:25 amSTL-PRG

18h 56m2 stops

6:00 am - 9:43 pmPRG-STL

22h 43m2 stops

$1,858Delta

Find Deal

sáb., dic. 20 - sáb., dic. 27

Air Canada flights from St. Louis to Prague

Our best Air Canada deals on St. Louis to Prague flight tickets

Air Canada

Mar 27

STL4:05 pmLambert-St Louis

15h 00m

2 stops

PRG1:05 pmVáclav Havel Prague

Mar 31

PRG6:00 amVáclav Havel Prague

16h 24m

2 stops

STL3:24 pmLambert-St Louis

$654

Find similar

Air Canada

Mar 27

STL4:05 pmLambert-St Louis

15h 00m

2 stops

PRG1:05 pmVáclav Havel Prague

Mar 31

PRG2:30 pmVáclav Havel Prague

31h 54m

2 stops

STL3:24 pmLambert-St Louis

$803

Find similar

Air Canada

Dec 25

STL4:05 pmLambert-St Louis

39h 00m

2 stops

PRG2:05 pmVáclav Havel Prague

Jan 7

PRG10:00 amVáclav Havel Prague

36h 29m

2 stops

STL3:29 pmLambert-St Louis

$973

Find similar

United Airlines flights from St. Louis to Prague

Our best United Airlines deals on St. Louis to Prague flight tickets

United Airlines

Mar 27

STL4:50 pmLambert-St Louis

15h 15m

1 stop

PRG2:05 pmVáclav Havel Prague

Mar 31

PRG9:10 amVáclav Havel Prague

17h 15m

2 stops

STL7:25 pmLambert-St Louis

$663

Find similar

United Airlines

Mar 27

STL4:50 pmLambert-St Louis

15h 15m

1 stop

PRG2:05 pmVáclav Havel Prague

Mar 31

PRG6:00 amVáclav Havel Prague

15h 18m

2 stops

STL2:18 pmLambert-St Louis

$753

Find similar

United Airlines

Dec 24

STL2:45 pmLambert-St Louis

18h 20m

2 stops

PRG4:05 pmVáclav Havel Prague

Jan 6

PRG1:45 pmVáclav Havel Prague

34h 33m

2 stops

STL5:18 pmLambert-St Louis

$776

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

vie. 3/27

4:05 pm-1:05 pm

2 stops15h 00m

Václav Havel Prague

mar. 3/31

6:00 am-3:24 pm

2 stops16h 24m

$654

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

vie. 3/27

4:50 pm-2:05 pm

1 stop15h 15m

Václav Havel Prague

mar. 3/31

9:10 am-7:25 pm

2 stops17h 15m

$663

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

dom. 5/3

10:00 pm-5:00 pm

1 stop12h 00m

Václav Havel Prague

sáb. 5/9

5:45 pm-7:30 pm

1 stop32h 45m

$744

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

vie. 3/27

4:50 pm-2:05 pm

1 stop15h 15m

Václav Havel Prague

mar. 3/31

6:00 am-2:18 pm

2 stops15h 18m

$753

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

vie. 3/27

4:50 pm-9:50 am

1 stop11h 00m

Václav Havel Prague

mar. 3/31

6:50 pm-1:30 pm

1 stop25h 40m

$764

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

vie. 5/1

1:30 pm-12:45 pm

2 stops16h 15m

Václav Havel Prague

dom. 5/10

6:10 am-1:30 pm

1 stop14h 20m

$771

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

dom. 5/3

12:56 pm-1:35 pm

2 stops17h 39m

Václav Havel Prague

sáb. 5/9

5:45 pm-7:30 pm

1 stop32h 45m

$773

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

vie. 5/1

3:30 pm-1:40 pm

1 stop15h 10m

Václav Havel Prague

dom. 5/10

6:10 am-1:30 pm

1 stop14h 20m

$779

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

vie. 5/1

1:30 pm-4:05 pm

2 stops19h 35m

Václav Havel Prague

dom. 5/10

7:30 am-6:25 pm

2 stops17h 55m

$789

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

sáb. 12/20

6:29 am-8:25 am

2 stops18h 56m

Václav Havel Prague

sáb. 12/27

6:00 am-9:43 pm

2 stops22h 43m

$1,858

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Prague

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between St. Louis and Prague?

What is the cheapest month to fly to Prague?

In general, March is the cheapest month to fly from St. Louis to Prague. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $659. If you are unable to visit Prague during the month of March, then departing from St. Louis during the month February is also very affordable. Most momondo users find prices during this month for around $705.

What is the cheapest day to depart on your flight to Prague?

The cheapest day to depart from St. Louis to Prague is on a Thursday. Travelers who choose to depart for Prague on a Thursday will often find tickets for as low as $983. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from St. Louis to Prague for around $1,216.

What is the cheapest time of day to depart on your flight to Prague?

According to our data, the cheapest time of day to fly to Prague is in the morning. momondo users have found flights departing from St. Louis to Prague in the morning for as low as $1,013. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets at noon because they tend to be around $1,216. Of course, these prices can vary depending on the time of year and what airport you fly to.

When to book flights from St. Louis to Prague

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Prague according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap St. Louis to Prague (STL to PRG) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Prague

Direct flights	None

There are no direct flights from St. Louis to Prague. There are no popular flight routes from St. Louis to Prague.

Search flight deals

How far is Lambert-St Louis to Václav Havel Prague by plane?
Lambert-St Louis and Václav Havel Prague are 4789.6 mi apart from one another. Flights usually cover this in 11h 00m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Lambert-St Louis Airport to Václav Havel Prague Airport?
Prices for flights from Lambert-St Louis Airport to Václav Havel Prague Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Lambert-St Louis Airport to Václav Havel Prague Airport?
The number of operators available for flights from Lambert-St Louis Airport to Václav Havel Prague Airport is 6 as of November 2025.
How old do you have to be to fly from Lambert-St Louis Airport to Václav Havel Prague Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Václav Havel Prague Airport.
What documentation or ID do you need to fly to Václav Havel Prague Airport?
The travel and health documents you'll need for your trip to Václav Havel Prague Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Václav Havel Prague Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from St. Louis to Prague?
momondo data reveals that the most frequently booked airline on the route from St. Louis to Prague is Lufthansa, representing 30% of all bookings. The subsequent popular airlines are United Airlines at 26%, Delta at 17%, and Air Canada at 9%.

Best airlines flying from St. Louis to Prague

Compare and see reviews for airlines that fly from St. Louis to Prague with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $582	Free Cancellation	Rating 6.7 7,500 reviews	Search British Airways flights
United Airlines	PriceFrom $655	Free Cancellation	Rating 7.4 9,007 reviews	Search United Airlines flights
Lufthansa	PriceFrom $683	Free Cancellation	Rating 6.8 7,558 reviews	Search Lufthansa flights
Delta	PriceFrom $728	Free Cancellation	Rating 7.9 8,001 reviews	Search Delta flights
KLM	PriceFrom $731	Free Cancellation	Rating 7.7 1,405 reviews	Search KLM flights
Air Canada	PriceFrom $745	Free Cancellation	Rating 7.1 10,416 reviews	Search Air Canada flights

Český Krumlov

Pilsen

Liberec

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Prague?

It is quick and easy to find St. Louis to Prague flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Prague that suits you.

Can I find flights from St. Louis to Prague with flexible booking policies on momondo?

Yes. All flights to Prague from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from St. Louis to Prague?

Once you have performed a search for St. Louis to Prague flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from St. Louis to Prague right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Prague now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Prague and let you know when they change.

An easier way to manage your Prague trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

sáb. 12/6

sáb. 12/13

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the Czech Republic

Fly your favorite airline to Prague

Cheap flights from St. Louis to Prague from $447

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Prague departing on 12/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from St. Louis to Prague

Cheap round-trip flights

Cheap one-way flights

Air Canada flights from St. Louis to Prague

Our best Air Canada deals on St. Louis to Prague flight tickets

United Airlines flights from St. Louis to Prague

Our best United Airlines deals on St. Louis to Prague flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from St. Louis to Prague that are best for you.

See travel insights to Prague from

How to get the cheapest flight ticket from St. Louis to Prague

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between St. Louis and Prague?

What is the cheapest month to fly to Prague?

What is the cheapest day to depart on your flight to Prague?

What is the cheapest time of day to depart on your flight to Prague?

What is the cheapest airline that flies from Lambert-St Louis to Václav Havel Prague?

Lufthansa, American Airlines, and United Airlines are the most popular carriers operating from Lambert-St Louis to Václav Havel Prague

What airlines fly to Prague?

Which airport is the most popular layover for flights between St. Louis and Prague?

Frankfurt am Main (FRA) was the most common stop: 55% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from St. Louis to Prague?

Flights via London (LHR) offer the lowest average round-trip price of $714.

Which layover airport has the shortest travel time from St. Louis to Prague?

Flights connecting via Frankfurt am Main (FRA) have the shortest average one-way travel time: 11h 48m.

Which layover airport has the shortest connection time from St. Louis to Prague?

Frankfurt am Main (FRA) has the shortest average layover time for this route: 3h 59m.

When to book flights from St. Louis to Prague

Cheap St. Louis to Prague (STL to PRG) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Prague

Direct flights

How far is Lambert-St Louis to Václav Havel Prague by plane?

When did momondo last update prices for flights from Lambert-St Louis Airport to Václav Havel Prague Airport?

How many operators does momondo search for flights from Lambert-St Louis Airport to Václav Havel Prague Airport?

How old do you have to be to fly from Lambert-St Louis Airport to Václav Havel Prague Airport?

What documentation or ID do you need to fly to Václav Havel Prague Airport?

What is the most popular airline from St. Louis to Prague?

Best airlines flying from St. Louis to Prague

Compare and see reviews for airlines that fly from St. Louis to Prague with momondo

Traveling to a place near Prague?

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Prague?

Can I find flights from St. Louis to Prague with flexible booking policies on momondo?

How can momondo help me find flights from St. Louis to Prague?

I’m not ready to book a flight from St. Louis to Prague right now. Can momondo alert me if prices change?

An easier way to manage your Prague trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the Czech Republic

Fly your favorite airline to Prague

Airlines are sorted and displayed according to clicks in the past 7 days on momondo