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Cheap flights from St. Louis to Prague from $460

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 4/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from St. Louis to Prague

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:21 pm - 3:45 pm
STL
-
PRG
15h 24m
2 stops
American Airlines Logo
8:40 am - 7:30 pm
PRG
-
STL
17h 50m
2 stops
$501American Airlines
Wed, Apr 29 - Fri, May 8
United Airlines Logo
7:45 am - 5:55 pm
STL
-
PRG
27h 10m
2 stops
United Airlines Logo
11:40 am - 12:06 pm
PRG
-
STL
31h 26m
2 stops
$510United Airlines
Tue, Apr 21 - Thu, Apr 30
Finnair Logo
5:21 pm - 6:45 pm
STL
-
PRG
18h 24m
2 stops
Finnair Logo
11:35 am - 10:19 pm
PRG
-
STL
17h 44m
2 stops
$512Finnair
Wed, Apr 29 - Fri, May 8
Multiple Airlines Logo
4:05 pm - 8:15 am
STL
-
PRG
33h 10m
2 stops
Multiple Airlines Logo
11:40 am - 1:25 pm
PRG
-
STL
32h 45m
1 stop
$521Multiple Airlines
Tue, Apr 21 - Thu, Apr 30
American Airlines Logo
8:03 pm - 6:40 pm
STL
-
PRG
15h 37m
2 stops
American Airlines Logo
8:40 am - 7:30 pm
PRG
-
STL
17h 50m
2 stops
$554American Airlines
Sun, Apr 19 - Sun, Apr 26
Lufthansa Logo
3:30 pm - 5:55 pm
STL
-
PRG
19h 25m
1 stop
Lufthansa Logo
6:10 am - 1:25 pm
PRG
-
STL
14h 15m
1 stop
$557Lufthansa
Sun, Apr 19 - Sun, Apr 26
United Airlines Logo
3:30 pm - 5:55 pm
STL
-
PRG
19h 25m
1 stop
United Airlines Logo
6:10 am - 1:25 pm
PRG
-
STL
14h 15m
1 stop
$559United Airlines
Sun, Apr 19 - Sun, Apr 26
United Airlines Logo
8:15 pm - 5:55 pm
STL
-
PRG
14h 40m
2 stops
United Airlines Logo
6:10 am - 1:25 pm
PRG
-
STL
14h 15m
1 stop
$563United Airlines
Sun, Apr 19 - Sun, Apr 26
United Airlines Logo
8:15 pm - 5:55 pm
STL
-
PRG
14h 40m
2 stops
United Airlines Logo
6:10 am - 1:25 pm
PRG
-
STL
14h 15m
1 stop
$564United Airlines
Sun, Apr 19 - Sun, Apr 26
Multiple Airlines Logo
7:30 am - 12:45 pm
STL
-
PRG
22h 15m
2 stops
Multiple Airlines Logo
2:40 pm - 1:25 pm
PRG
-
STL
29h 45m
1 stop
$565Multiple Airlines
Sun, May 3 - Sat, May 9

Lufthansa flights from St. Louis to Prague

Our best Lufthansa deals on St. Louis to Prague flight tickets
Lufthansa
Apr 19
STL3:30 pmLambert-St Louis
19h 25m
1 stop
PRG5:55 pmVáclav Havel Prague
Apr 26
PRG6:10 amVáclav Havel Prague
14h 15m
1 stop
STL1:25 pmLambert-St Louis
$557
Lufthansa
Apr 29
STL3:30 pmLambert-St Louis
15h 00m
1 stop
PRG1:30 pmVáclav Havel Prague
May 8
PRG6:00 amVáclav Havel Prague
14h 25m
1 stop
STL1:25 pmLambert-St Louis
$607
Lufthansa
Apr 19
STL3:30 pmLambert-St Louis
19h 25m
1 stop
PRG5:55 pmVáclav Havel Prague
Apr 26
PRG6:10 amVáclav Havel Prague
14h 15m
1 stop
STL1:25 pmLambert-St Louis
$657

British Airways flights from St. Louis to Prague

Our best British Airways deals on St. Louis to Prague flight tickets
British Airways
Apr 20
STL2:33 pmLambert-St Louis
19h 27m
2 stops
PRG5:00 pmVáclav Havel Prague
Apr 27
PRG8:55 pmVáclav Havel Prague
29h 35m
1 stop
STL7:30 pmLambert-St Louis
$738
British Airways
Apr 20
STL5:21 pmLambert-St Louis
22h 29m
2 stops
PRG10:50 pmVáclav Havel Prague
Apr 27
PRG8:55 pmVáclav Havel Prague
29h 35m
1 stop
STL7:30 pmLambert-St Louis
$757
British Airways
May 4
STL2:33 pmLambert-St Louis
19h 27m
2 stops
PRG5:00 pmVáclav Havel Prague
May 15
PRG7:05 amVáclav Havel Prague
19h 25m
1 stop
STL7:30 pmLambert-St Louis
$824

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Prague that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 18, 2026.
Use the filters below to find and compare flights from St. Louis to Prague that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 4/29

5:21 pm-3:45 pm

2 stops15h 24m

Václav Havel Prague

Fri 5/8

8:40 am-7:30 pm

2 stops17h 50m

$501

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Tue 4/21

7:45 am-5:55 pm

2 stops27h 10m

Václav Havel Prague

Thu 4/30

11:40 am-12:06 pm

2 stops31h 26m

$510

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 4/29

5:21 pm-6:45 pm

2 stops18h 24m

Václav Havel Prague

Fri 5/8

11:35 am-10:19 pm

2 stops17h 44m

$512

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Tue 4/21

4:05 pm-8:15 am

2 stops33h 10m

Václav Havel Prague

Thu 4/30

11:40 am-1:25 pm

1 stop32h 45m

$521

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 4/19

8:03 pm-6:40 pm

2 stops15h 37m

Václav Havel Prague

Sun 4/26

8:40 am-7:30 pm

2 stops17h 50m

$554

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 4/19

3:30 pm-5:55 pm

1 stop19h 25m

Václav Havel Prague

Sun 4/26

6:10 am-1:25 pm

1 stop14h 15m

$557

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 4/19

3:30 pm-5:55 pm

1 stop19h 25m

Václav Havel Prague

Sun 4/26

6:10 am-1:25 pm

1 stop14h 15m

$559

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 4/19

8:15 pm-5:55 pm

2 stops14h 40m

Václav Havel Prague

Sun 4/26

6:10 am-1:25 pm

1 stop14h 15m

$563

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 4/19

8:15 pm-5:55 pm

2 stops14h 40m

Václav Havel Prague

Sun 4/26

6:10 am-1:25 pm

1 stop14h 15m

$564

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 5/3

7:30 am-12:45 pm

2 stops22h 15m

Václav Havel Prague

Sat 5/9

2:40 pm-1:25 pm

1 stop29h 45m

$565

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

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

Fastest flight time

14h 50m

Direct flights

None
The fastest flight from St. Louis to Prague takes 14h 50m
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 14h 50m, 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?

  • 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?

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 AirlinesPriceFrom $500Free CancellationRating
7.4
9,315 reviews
Search United Airlines flights
LufthansaPriceFrom $572Free CancellationRating
6.8
7,790 reviews
Search Lufthansa flights
DeltaPriceFrom $728Free CancellationRating
7.9
8,208 reviews
Search Delta flights

Traveling to a place near Prague?

Book flights to Prague if you plan to visit one of these locations
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.

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Fly your favorite airline to Prague

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