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

British Airways, United Airlines, and Aer Lingus are the most popular carriers operating from Lambert-St Louis to Václav Havel Prague

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 08m.

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

Flights via Frankfurt am Main (FRA) offer the lowest average round-trip price of $711.

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 38% of people opting to fly with this airline when traveling to Prague. Keep in mind that there are 4 different airlines that fly to Prague on a routine basis, so you have a few additional options to choose from.

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

Frankfurt am Main (FRA) was the most common stop: 74% of momondo users choosing 1-stop flights on this route connected there.

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: 13h 11m.

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 4 as of September 2026.

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.

$330 Cheap Flights from St. Louis to Prague in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Prague

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:50 am - 2:55 pmSTL Lambert-St Louis-PRG Václav Havel Prague

22h 05m2 stops Boston Logan Intl Madrid Barajas

3:40 pm - 9:30 amPRG Václav Havel Prague-STL Lambert-St Louis

24h 50m2 stops Madrid Barajas Dallas/Fort Worth

$669Iberia

Wed, Nov 11 - Mon, Nov 16

10:21 am - 6:50 pmSTL Lambert-St Louis-PRG Václav Havel Prague

25h 29m2 stops Dallas/Fort Worth Helsinki-Vantaa

7:35 pm - 11:33 pmPRG Václav Havel Prague-STL Lambert-St Louis

34h 58m2 stops Helsinki-Vantaa Dallas/Fort Worth

$674Multiple Airlines

Tue, Nov 3 - Tue, Nov 10

12:47 pm - 6:50 pmSTL Lambert-St Louis-PRG Václav Havel Prague

24h 03m2 stops Dallas/Fort Worth Helsinki-Vantaa

7:35 pm - 8:19 pmPRG Václav Havel Prague-STL Lambert-St Louis

31h 44m2 stops Helsinki-Vantaa Dallas/Fort Worth

$674Multiple Airlines

Wed, Oct 28 - Mon, Nov 2

1:08 pm - 4:05 pmSTL Lambert-St Louis-PRG Václav Havel Prague

19h 57m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

7:05 am - 1:45 pmPRG Václav Havel Prague-STL Lambert-St Louis

13h 40m1 stop Frankfurt am Main

$692United Airlines

Wed, Nov 4 - Wed, Nov 11

6:50 pm - 10:40 pmSTL Lambert-St Louis-PRG Václav Havel Prague

20h 50m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

1:45 pm - 9:40 pmPRG Václav Havel Prague-STL Lambert-St Louis

14h 55m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl

$694United Airlines

Wed, Nov 4 - Wed, Nov 11

4:39 pm - 1:05 pmSTL Lambert-St Louis-PRG Václav Havel Prague

37h 26m2 stops Denver Intl Munich Franz Josef Strauss

7:05 am - 1:45 pmPRG Václav Havel Prague-STL Lambert-St Louis

13h 40m1 stop Frankfurt am Main

$704United Airlines

Sat, Nov 14 - Wed, Nov 25

6:50 pm - 10:45 amSTL Lambert-St Louis-PRG Václav Havel Prague

32h 55m2 stops Chicago O'Hare Intl Frankfurt am Main

1:45 pm - 9:40 pmPRG Václav Havel Prague-STL Lambert-St Louis

14h 55m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl

$705Lufthansa

Sat, Nov 14 - Wed, Nov 25

6:50 pm - 4:05 pmSTL Lambert-St Louis-PRG Václav Havel Prague

14h 15m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

7:05 am - 1:45 pmPRG Václav Havel Prague-STL Lambert-St Louis

13h 40m1 stop Frankfurt am Main

$707Lufthansa

Wed, Nov 11 - Sun, Nov 15

4:38 pm - 11:10 amSTL Lambert-St Louis-PRG Václav Havel Prague

35h 32m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

6:30 am - 11:55 pmPRG Václav Havel Prague-STL Lambert-St Louis

24h 25m2 stops Paris Charles de Gaulle Atlanta Hartsfield-Jackson

$882Delta

Sat, Dec 12 - Sat, Dec 26

4:38 pm - 11:10 amSTL Lambert-St Louis-PRG Václav Havel Prague

35h 32m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

6:30 am - 6:46 pmPRG Václav Havel Prague-STL Lambert-St Louis

19h 16m2 stops Paris Charles de Gaulle Salt Lake City

$887Delta

Sat, Dec 12 - Mon, Dec 28

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

Iberia flights from St. Louis to Prague

Our best Iberia deals on St. Louis to Prague flight tickets

Iberia

Nov 11

STL9:50 amLambert-St Louis

22h 05m

2 stops

PRG2:55 pmVáclav Havel Prague

Nov 16

PRG3:40 pmVáclav Havel Prague

24h 50m

2 stops

STL9:30 amLambert-St Louis

$669

Iberia

Jan 13

STL9:58 amLambert-St Louis

21h 57m

2 stops

PRG2:55 pmVáclav Havel Prague

Mar 13

PRG3:40 pmVáclav Havel Prague

28h 24m

2 stops

STL1:04 pmLambert-St Louis

$701

United Airlines flights from St. Louis to Prague

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

United Airlines

Nov 4

STL1:08 pmLambert-St Louis

19h 57m

2 stops

PRG4:05 pmVáclav Havel Prague

Nov 11

PRG7:05 amVáclav Havel Prague

13h 40m

1 stop

STL1:45 pmLambert-St Louis

$692

United Airlines

Nov 4

STL6:50 pmLambert-St Louis

20h 50m

2 stops

PRG10:40 pmVáclav Havel Prague

Nov 11

PRG1:45 pmVáclav Havel Prague

14h 55m

2 stops

STL9:40 pmLambert-St Louis

$694

United Airlines

Nov 4

STL3:40 pmLambert-St Louis

11h 00m

1 stop

PRG9:40 amVáclav Havel Prague

Nov 11

PRG7:05 amVáclav Havel Prague

13h 40m

1 stop

STL1:45 pmLambert-St Louis

$709

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisPrague

STL Lambert-St Louis - PRG Václav Havel Prague

STLPRG

Lambert-St Louis

Wed 11/11

9:50 am-2:55 pm

2 stops22h 05m

Václav Havel Prague

Mon 11/16

3:40 pm-9:30 am

2 stops24h 50m

$669

St. LouisPrague

STL Lambert-St Louis - PRG Václav Havel Prague

STLPRG

Lambert-St Louis

Tue 11/3

10:21 am-6:50 pm

2 stops25h 29m

Václav Havel Prague

Tue 11/10

7:35 pm-11:33 pm

2 stops34h 58m

$674

St. LouisPrague

STL Lambert-St Louis - PRG Václav Havel Prague

STLPRG

Lambert-St Louis

Wed 10/28

12:47 pm-6:50 pm

2 stops24h 03m

Václav Havel Prague

Mon 11/2

7:35 pm-8:19 pm

2 stops31h 44m

$674

St. LouisPrague

STL Lambert-St Louis - PRG Václav Havel Prague

STLPRG

Lambert-St Louis

Wed 11/4

1:08 pm-4:05 pm

2 stops19h 57m

Václav Havel Prague

Wed 11/11

7:05 am-1:45 pm

1 stop13h 40m

$692

St. LouisPrague

STL Lambert-St Louis - PRG Václav Havel Prague

STLPRG

Lambert-St Louis

Wed 11/4

6:50 pm-10:40 pm

2 stops20h 50m

Václav Havel Prague

Wed 11/11

1:45 pm-9:40 pm

2 stops14h 55m

$694

St. LouisPrague

STL Lambert-St Louis - PRG Václav Havel Prague

STLPRG

Lambert-St Louis

Sat 11/14

4:39 pm-1:05 pm

2 stops37h 26m

Václav Havel Prague

Wed 11/25

7:05 am-1:45 pm

1 stop13h 40m

$704

St. LouisPrague

STL Lambert-St Louis - PRG Václav Havel Prague

STLPRG

Lambert-St Louis

Sat 11/14

6:50 pm-10:45 am

2 stops32h 55m

Václav Havel Prague

Wed 11/25

1:45 pm-9:40 pm

2 stops14h 55m

$705

Quickest round-trip

St. LouisPrague

STL Lambert-St Louis - PRG Václav Havel Prague

STLPRG

Lambert-St Louis

Wed 11/11

6:50 pm-4:05 pm

2 stops14h 15m

Václav Havel Prague

Sun 11/15

7:05 am-1:45 pm

1 stop13h 40m

$707

St. LouisPrague

STL Lambert-St Louis - PRG Václav Havel Prague

STLPRG

Lambert-St Louis

Sat 12/12

4:38 pm-11:10 am

2 stops35h 32m

Václav Havel Prague

Sat 12/26

6:30 am-11:55 pm

2 stops24h 25m

$882

St. LouisPrague

STL Lambert-St Louis - PRG Václav Havel Prague

STLPRG

Lambert-St Louis

Sat 12/12

4:38 pm-11:10 am

2 stops35h 32m

Václav Havel Prague

Mon 12/28

6:30 am-6:46 pm

2 stops19h 16m

$887

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?

Prices are currently low for flights on this route.

Typical prices usually range from $795 to $1,101.
The lowest price recently found on this route was $669.

What is the cheapest month to fly to Prague?

In general, January 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 $0. If you are unable to visit Prague during the month of January, then departing from St. Louis during the month April is also very affordable. Most momondo users find prices during this month for around $620.

Can stopping save me money on St. Louis to Prague flights?

You could potentially save up to 22% on your flight if you consider stops on a St. Louis to Prague flight.

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

Best Price Found	$330
Fastest flight time	23h 05m
Direct flights	None

The best one-way flight to Prague from St. Louis in the past 72 hours is $330. The best round-trip flight deal from St. Louis to Prague found on momondo in the last 72 hours is $669.

The fastest flight from St. Louis to Prague takes 23h 05m

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

Search flight deals

Frequently asked questions about flying from St. Louis to Prague

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 23h 05m, 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 4 as of September 2026.
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 38% of all bookings. The subsequent popular airlines are United Airlines at 25%, Delta at 20%, and American Airlines at 16%.

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
United Airlines	PriceFrom $500	Free Cancellation	Rating 7.4 10,234 reviews	Search United Airlines flights
American Airlines	PriceFrom $511	Free Cancellation	Rating 7.0 12,085 reviews	Search American Airlines flights
Lufthansa	PriceFrom $572	Free Cancellation	Rating 6.8 8,236 reviews	Search Lufthansa flights
Delta	PriceFrom $928	Free Cancellation	Rating 7.8 8,599 reviews	Search Delta 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

Sat 10/24

Sat 10/31

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

Airlines

Cabin classes

Other Czech Republic destinations

Other flights from St. Louis

Complete your trip

Feeling lucky

Fly your favorite airline to Prague

Cheap flights from St. Louis to Prague from $330

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 10/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from St. Louis to Prague

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

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

Iberia flights from St. Louis to Prague

Our best Iberia 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

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

What is the cheapest month to fly to Prague?

Can stopping save me money on St. Louis to Prague flights?

What is the cheapest airline that flies 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?

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

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

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

When to book flights from St. Louis to Prague

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying 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?

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

Cabin classes currently available on flights to Prague

List of cabin classes available on flights landing in Prague. Availability may vary depending on flight origin and airline.

Popular cities in the Czech Republic

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from St. Louis

According to popular flight searches on momondo this year

Complete your trip to Prague

Explore popular destinations other users love

According to popular flight searches on momondo this year