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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.
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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.
Air Canada Logo
4:05 pm - 4:05 pm
STL
-
PRG
41h 00m
2 stops
Air Canada Logo
2:20 pm - 3:24 pm
PRG
-
STL
32h 04m
2 stops
$484Air Canada
Sun, Apr 5 - Tue, Apr 21
British Airways Logo
2:00 pm - 8:40 pm
STL
-
PRG
24h 40m
2 stops
British Airways Logo
6:30 pm - 11:44 pm
PRG
-
STL
35h 14m
2 stops
$496British Airways
Tue, Mar 10 - Tue, Mar 17
British Airways Logo
7:05 am - 4:05 pm
STL
-
PRG
26h 00m
2 stops
British Airways Logo
8:55 pm - 4:41 pm
PRG
-
STL
26h 46m
2 stops
$497British Airways
Mon, Apr 20 - Mon, Apr 27
United Airlines Logo
12:15 pm - 5:55 pm
STL
-
PRG
22h 40m
2 stops
United Airlines Logo
6:00 am - 8:05 pm
PRG
-
STL
21h 05m
2 stops
$504United Airlines
Wed, Apr 29 - Fri, May 8
United Airlines Logo
10:00 am - 5:55 pm
STL
-
PRG
24h 55m
2 stops
United Airlines Logo
6:15 am - 3:24 pm
PRG
-
STL
40h 09m
2 stops
$511United Airlines
Sun, Apr 19 - Tue, Apr 28
Finnair Logo
12:27 pm - 6:45 pm
STL
-
PRG
23h 18m
2 stops
Finnair Logo
11:35 am - 10:19 pm
PRG
-
STL
17h 44m
2 stops
$512Finnair
Wed, Apr 29 - Fri, May 8
United Airlines Logo
3:30 pm - 5:55 pm
STL
-
PRG
19h 25m
1 stop
United Airlines Logo
6:10 am - 9:08 pm
PRG
-
STL
21h 58m
2 stops
$517United Airlines
Sun, Apr 5 - Tue, Apr 21
United Airlines Logo
3:30 pm - 5:55 pm
STL
-
PRG
19h 25m
1 stop
United Airlines Logo
6:15 am - 3:24 pm
PRG
-
STL
40h 09m
2 stops
$518United Airlines
Sun, Apr 19 - Tue, Apr 28
Lufthansa Logo
3:30 pm - 5:55 pm
STL
-
PRG
19h 25m
1 stop
Lufthansa Logo
1:25 pm - 9:08 pm
PRG
-
STL
14h 43m
2 stops
$520Lufthansa
Sun, Mar 29 - Tue, Apr 14
United Airlines Logo
11:15 am - 5:55 pm
STL
-
PRG
23h 40m
2 stops
United Airlines Logo
1:25 pm - 3:24 pm
PRG
-
STL
56h 59m
2 stops
$522United Airlines
Mon, Apr 20 - Mon, Apr 27

British Airways flights from St. Louis to Prague

Our best British Airways deals on St. Louis to Prague flight tickets
British Airways
Mar 10
STL2:00 pmLambert-St Louis
24h 40m
2 stops
PRG8:40 pmVáclav Havel Prague
Mar 17
PRG6:30 pmVáclav Havel Prague
35h 14m
2 stops
STL11:44 pmLambert-St Louis
$496
British Airways
Apr 20
STL7:05 amLambert-St Louis
26h 00m
2 stops
PRG4:05 pmVáclav Havel Prague
Apr 27
PRG8:55 pmVáclav Havel Prague
26h 46m
2 stops
STL4:41 pmLambert-St Louis
$497
British Airways
Apr 20
STL5:21 pmLambert-St Louis
15h 44m
2 stops
PRG4:05 pmVáclav Havel Prague
Apr 28
PRG5:10 pmVáclav Havel Prague
33h 20m
1 stop
STL7:30 pmLambert-St Louis
$661

Delta flights from St. Louis to Prague

Our best Delta deals on St. Louis to Prague flight tickets
Delta
Apr 11
STL5:57 pmLambert-St Louis
14h 03m
2 stops
PRG3:00 pmVáclav Havel Prague
Apr 22
PRG6:00 amVáclav Havel Prague
17h 42m
2 stops
STL4:42 pmLambert-St Louis
$558
Delta
Mar 1
STL6:10 amLambert-St Louis
22h 30m
2 stops
PRG11:40 amVáclav Havel Prague
Mar 8
PRG2:30 pmVáclav Havel Prague
24h 35m
2 stops
STL9:05 amLambert-St Louis
$709

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 11, 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

Sun 4/5

4:05 pm-4:05 pm

2 stops41h 00m

Václav Havel Prague

Tue 4/21

2:20 pm-3:24 pm

2 stops32h 04m

$484

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Tue 3/10

2:00 pm-8:40 pm

2 stops24h 40m

Václav Havel Prague

Tue 3/17

6:30 pm-11:44 pm

2 stops35h 14m

$496

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Mon 4/20

7:05 am-4:05 pm

2 stops26h 00m

Václav Havel Prague

Mon 4/27

8:55 pm-4:41 pm

2 stops26h 46m

$497

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 4/29

12:15 pm-5:55 pm

2 stops22h 40m

Václav Havel Prague

Fri 5/8

6:00 am-8:05 pm

2 stops21h 05m

$504

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 4/19

10:00 am-5:55 pm

2 stops24h 55m

Václav Havel Prague

Tue 4/28

6:15 am-3:24 pm

2 stops40h 09m

$511

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 4/29

12:27 pm-6:45 pm

2 stops23h 18m

Václav Havel Prague

Fri 5/8

11:35 am-10:19 pm

2 stops17h 44m

$512

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 4/5

3:30 pm-5:55 pm

1 stop19h 25m

Václav Havel Prague

Tue 4/21

6:10 am-9:08 pm

2 stops21h 58m

$517

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 4/19

3:30 pm-5:55 pm

1 stop19h 25m

Václav Havel Prague

Tue 4/28

6:15 am-3:24 pm

2 stops40h 09m

$518

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 3/29

3:30 pm-5:55 pm

1 stop19h 25m

Václav Havel Prague

Tue 4/14

1:25 pm-9:08 pm

2 stops14h 43m

$520

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Mon 4/20

11:15 am-5:55 pm

2 stops23h 40m

Václav Havel Prague

Mon 4/27

1:25 pm-3:24 pm

2 stops56h 59m

$522

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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 03m

Direct flights

None
The fastest flight from St. Louis to Prague takes 14h 03m
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 03m, 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 $504Free CancellationRating
7.4
9,274 reviews
Search United Airlines flights
LufthansaPriceFrom $572Free CancellationRating
6.8
7,777 reviews
Search Lufthansa flights
DeltaPriceFrom $728Free CancellationRating
7.9
8,179 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