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Cheap flights from Prague to St. Louis from $597

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Prague to St. Louis departing on 9/6. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Prague to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:50 am - 7:45 pm
PRG
-
STL
17h 55m
2 stops
Multiple Airlines Logo
7:00 am - 9:25 pm
STL
-
PRG
31h 25m
2 stops
$1,003Multiple Airlines
Thu, Aug 13 - Thu, Aug 27
Lufthansa Logo
2:40 pm - 11:29 pm
PRG
-
STL
15h 49m
2 stops
Lufthansa Logo
3:30 pm - 10:50 am
STL
-
PRG
12h 20m
1 stop
$1,031Lufthansa
Sat, Jul 4 - Wed, Jul 8
United Airlines Logo
6:10 am - 1:25 pm
PRG
-
STL
14h 15m
1 stop
United Airlines Logo
5:30 pm - 4:00 pm
STL
-
PRG
15h 30m
2 stops
$1,034United Airlines
Tue, Aug 11 - Tue, Aug 25
United Airlines Logo
6:10 am - 1:25 pm
PRG
-
STL
14h 15m
1 stop
United Airlines Logo
3:30 pm - 1:40 pm
STL
-
PRG
15h 10m
1 stop
$1,035United Airlines
Tue, Aug 11 - Fri, Aug 28
United Airlines Logo
6:10 am - 1:25 pm
PRG
-
STL
14h 15m
1 stop
United Airlines Logo
8:55 am - 10:50 am
STL
-
PRG
18h 55m
1 stop
$1,038United Airlines
Tue, Aug 11 - Sat, Aug 29
United Airlines Logo
9:05 am - 7:23 pm
PRG
-
STL
17h 18m
2 stops
United Airlines Logo
5:30 pm - 4:00 pm
STL
-
PRG
15h 30m
2 stops
$1,040United Airlines
Mon, Aug 10 - Tue, Aug 25
United Airlines Logo
9:10 am - 7:11 pm
PRG
-
STL
17h 01m
2 stops
United Airlines Logo
3:30 pm - 10:45 am
STL
-
PRG
12h 15m
1 stop
$1,041United Airlines
Thu, Aug 13 - Sun, Aug 30
Lufthansa Logo
6:00 am - 1:25 pm
PRG
-
STL
14h 25m
1 stop
Lufthansa Logo
7:05 pm - 4:00 pm
STL
-
PRG
13h 55m
2 stops
$1,043Lufthansa
Mon, Aug 3 - Mon, Aug 10
Lufthansa Logo
6:00 am - 1:25 pm
PRG
-
STL
14h 25m
1 stop
Lufthansa Logo
3:30 pm - 10:55 am
STL
-
PRG
12h 25m
1 stop
$1,044Lufthansa
Mon, Aug 3 - Mon, Aug 10
United Airlines Logo
6:10 am - 1:25 pm
PRG
-
STL
14h 15m
1 stop
United Airlines Logo
3:30 pm - 5:40 pm
STL
-
PRG
19h 10m
1 stop
$1,045United Airlines
Wed, Jul 29 - Mon, Aug 17

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Air Canada flights from Prague to St. Louis

Our best Air Canada deals on Prague to St. Louis flight tickets
Air Canada
Jul 4
PRG12:30 pmVáclav Havel Prague
15h 56m
2 stops
STL9:26 pmLambert-St Louis
Jul 8
STL12:10 pmLambert-St Louis
20h 50m
2 stops
PRG4:00 pmVáclav Havel Prague
$1,176
Air Canada
Jul 6
PRG9:05 amVáclav Havel Prague
18h 02m
2 stops
STL8:07 pmLambert-St Louis
Jul 10
STL12:10 pmLambert-St Louis
13h 20m
2 stops
PRG8:30 amVáclav Havel Prague
$1,206

Lufthansa flights from Prague to St. Louis

Our best Lufthansa deals on Prague to St. Louis flight tickets
Lufthansa
Jul 4
PRG2:40 pmVáclav Havel Prague
15h 49m
2 stops
STL11:29 pmLambert-St Louis
Jul 8
STL3:30 pmLambert-St Louis
12h 20m
1 stop
PRG10:50 amVáclav Havel Prague
$1,031
Lufthansa
Aug 3
PRG6:00 amVáclav Havel Prague
14h 25m
1 stop
STL1:25 pmLambert-St Louis
Aug 10
STL7:05 pmLambert-St Louis
13h 55m
2 stops
PRG4:00 pmVáclav Havel Prague
$1,043
Lufthansa
Aug 3
PRG6:00 amVáclav Havel Prague
14h 25m
1 stop
STL1:25 pmLambert-St Louis
Aug 10
STL3:30 pmLambert-St Louis
12h 25m
1 stop
PRG10:55 amVáclav Havel Prague
$1,044

momondo Fare Finder

 
Customize your flight search to find flights from Prague to St. Louis 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 June 23, 2026.
Use the filters below to find and compare flights from Prague to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Thu 8/13

8:50 am-7:45 pm

2 stops17h 55m

Lambert-St Louis

Thu 8/27

7:00 am-9:25 pm

2 stops31h 25m

$1,003

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Sat 7/4

2:40 pm-11:29 pm

2 stops15h 49m

Lambert-St Louis

Wed 7/8

3:30 pm-10:50 am

1 stop12h 20m

$1,031

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Tue 8/11

6:10 am-1:25 pm

1 stop14h 15m

Lambert-St Louis

Tue 8/25

5:30 pm-4:00 pm

2 stops15h 30m

$1,034

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Tue 8/11

6:10 am-1:25 pm

1 stop14h 15m

Lambert-St Louis

Fri 8/28

3:30 pm-1:40 pm

1 stop15h 10m

$1,035

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Tue 8/11

6:10 am-1:25 pm

1 stop14h 15m

Lambert-St Louis

Sat 8/29

8:55 am-10:50 am

1 stop18h 55m

$1,038

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Mon 8/10

9:05 am-7:23 pm

2 stops17h 18m

Lambert-St Louis

Tue 8/25

5:30 pm-4:00 pm

2 stops15h 30m

$1,040

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Thu 8/13

9:10 am-7:11 pm

2 stops17h 01m

Lambert-St Louis

Sun 8/30

3:30 pm-10:45 am

1 stop12h 15m

$1,041

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Mon 8/3

6:00 am-1:25 pm

1 stop14h 25m

Lambert-St Louis

Mon 8/10

7:05 pm-4:00 pm

2 stops13h 55m

$1,043
Quickest round-trip

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Mon 8/3

6:00 am-1:25 pm

1 stop14h 25m

Lambert-St Louis

Mon 8/10

3:30 pm-10:55 am

1 stop12h 25m

$1,044

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Wed 7/29

6:10 am-1:25 pm

1 stop14h 15m

Lambert-St Louis

Mon 8/17

3:30 pm-5:40 pm

1 stop19h 10m

$1,045

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to St. Louis from

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

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 Prague to St. Louis flights?

You could potentially save up to 72% on your flight if you consider stops on a Prague to St. Louis flight.

When to book flights from Prague to St. Louis

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

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

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

Fastest flight time

15h 49m

Direct flights

None
The fastest flight from Prague to St. Louis takes 15h 49m
There are no direct flights from Prague to St. Louis. There are no popular flight routes from Prague to St. Louis.
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Frequently asked questions about flying from Prague to St. Louis

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

    There are 4789.6 mi between Václav Havel Prague and Lambert-St Louis. By plane, this route typically takes 15h 49m.

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

    Prices for flights from Václav Havel Prague Airport to Lambert-St Louis Airport refresh daily.

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

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Fairview Heights
Hermann
Maryland Heights
Florissant
O'Fallon
Collinsville
St. Peters
Alton
Wentzville
Farmington
Fenton
Clayton
Festus
Eureka
Litchfield
Edwardsville
Grafton
Shrewsbury

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Prague to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for Prague to St. Louis flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from Prague.

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

Yes. momondo can track prices for Prague to St. Louis flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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