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Cheap flights from Prague to St. Louis from $627

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 6/14. 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

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Find the cheapest flights from Prague to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:30 pm - 6:42 pm
PRG
-
STL
35h 12m
2 stops
United Airlines Logo
6:00 am - 10:45 am
STL
-
PRG
21h 45m
2 stops
$992United Airlines
Fri, Sep 4 - Sun, Sep 6
United Airlines Logo
6:10 am - 1:25 pm
PRG
-
STL
14h 15m
1 stop
United Airlines Logo
3:10 pm - 1:55 pm
STL
-
PRG
15h 45m
2 stops
$1,005United Airlines
Wed, Jun 3 - Sat, Aug 29
United Airlines Logo
6:00 am - 1:25 pm
PRG
-
STL
14h 25m
1 stop
United Airlines Logo
6:05 pm - 9:20 pm
STL
-
PRG
20h 15m
2 stops
$1,007United Airlines
Fri, Apr 3 - Fri, Apr 10
United Airlines Logo
6:00 am - 1:25 pm
PRG
-
STL
14h 25m
1 stop
United Airlines Logo
3:30 pm - 1:40 pm
STL
-
PRG
15h 10m
1 stop
$1,008United Airlines
Fri, Sep 4 - Sun, Sep 6
United Airlines Logo
6:00 am - 8:25 pm
PRG
-
STL
21h 25m
2 stops
United Airlines Logo
3:20 pm - 1:55 pm
STL
-
PRG
15h 35m
2 stops
$1,009United Airlines
Mon, May 4 - Mon, May 11
United Airlines Logo
6:00 am - 1:25 pm
PRG
-
STL
14h 25m
1 stop
United Airlines Logo
12:10 pm - 5:55 pm
STL
-
PRG
22h 45m
2 stops
$1,011United Airlines
Fri, Sep 4 - Sun, Sep 6
United Airlines Logo
9:10 am - 9:13 pm
PRG
-
STL
19h 03m
2 stops
United Airlines Logo
4:49 pm - 9:20 pm
STL
-
PRG
45h 31m
2 stops
$1,012United Airlines
Fri, Apr 3 - Sat, Apr 11
United Airlines Logo
6:00 am - 6:41 pm
PRG
-
STL
19h 41m
2 stops
United Airlines Logo
3:30 pm - 10:55 am
STL
-
PRG
12h 25m
1 stop
$1,013United Airlines
Thu, Sep 10 - Mon, Sep 14
Air Canada Logo
6:00 am - 6:41 pm
PRG
-
STL
19h 41m
2 stops
Air Canada Logo
12:10 pm - 10:55 am
STL
-
PRG
15h 45m
2 stops
$1,016Air Canada
Thu, Sep 10 - Mon, Sep 14
American Airlines Logo
10:15 am - 7:28 pm
PRG
-
STL
16h 13m
1 stop
American Airlines Logo
1:15 pm - 8:15 am
STL
-
PRG
12h 00m
1 stop
$1,024American Airlines
Thu, Sep 10 - Mon, Sep 14

American Airlines flights from Prague to St. Louis

Our best American Airlines deals on Prague to St. Louis flight tickets
American Airlines
Sep 10
PRG10:15 amVáclav Havel Prague
16h 13m
1 stop
STL7:28 pmLambert-St Louis
Sep 14
STL1:15 pmLambert-St Louis
12h 00m
1 stop
PRG8:15 amVáclav Havel Prague
$1,024
American Airlines
Sep 10
PRG10:15 amVáclav Havel Prague
20h 23m
1 stop
STL11:38 pmLambert-St Louis
Sep 14
STL1:15 pmLambert-St Louis
12h 00m
1 stop
PRG8:15 amVáclav Havel Prague
$1,051
American Airlines
Apr 4
PRG7:20 amVáclav Havel Prague
17h 40m
2 stops
STL6:00 pmLambert-St Louis
Apr 11
STL8:03 pmLambert-St Louis
16h 12m
2 stops
PRG7:15 pmVáclav Havel Prague
$1,207

Air Canada flights from Prague to St. Louis

Our best Air Canada deals on Prague to St. Louis flight tickets
Air Canada
Sep 10
PRG6:00 amVáclav Havel Prague
19h 41m
2 stops
STL6:41 pmLambert-St Louis
Sep 14
STL12:10 pmLambert-St Louis
15h 45m
2 stops
PRG10:55 amVáclav Havel Prague
$1,016
Air Canada
Apr 2
PRG2:30 pmVáclav Havel Prague
31h 55m
2 stops
STL3:25 pmLambert-St Louis
Apr 11
STL4:05 pmLambert-St Louis
35h 55m
2 stops
PRG11:00 amVáclav Havel Prague
$1,172

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 March 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

Fri 9/4

2:30 pm-6:42 pm

2 stops35h 12m

Lambert-St Louis

Sun 9/6

6:00 am-10:45 am

2 stops21h 45m

$992

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Wed 6/3

6:10 am-1:25 pm

1 stop14h 15m

Lambert-St Louis

Sat 8/29

3:10 pm-1:55 pm

2 stops15h 45m

$1,005

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Fri 4/3

6:00 am-1:25 pm

1 stop14h 25m

Lambert-St Louis

Fri 4/10

6:05 pm-9:20 pm

2 stops20h 15m

$1,007

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Fri 9/4

6:00 am-1:25 pm

1 stop14h 25m

Lambert-St Louis

Sun 9/6

3:30 pm-1:40 pm

1 stop15h 10m

$1,008

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Mon 5/4

6:00 am-8:25 pm

2 stops21h 25m

Lambert-St Louis

Mon 5/11

3:20 pm-1:55 pm

2 stops15h 35m

$1,009

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Fri 9/4

6:00 am-1:25 pm

1 stop14h 25m

Lambert-St Louis

Sun 9/6

12:10 pm-5:55 pm

2 stops22h 45m

$1,011

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Fri 4/3

9:10 am-9:13 pm

2 stops19h 03m

Lambert-St Louis

Sat 4/11

4:49 pm-9:20 pm

2 stops45h 31m

$1,012

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Thu 9/10

6:00 am-6:41 pm

2 stops19h 41m

Lambert-St Louis

Mon 9/14

3:30 pm-10:55 am

1 stop12h 25m

$1,013

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Thu 9/10

6:00 am-6:41 pm

2 stops19h 41m

Lambert-St Louis

Mon 9/14

12:10 pm-10:55 am

2 stops15h 45m

$1,016
Quickest round-trip

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Thu 9/10

10:15 am-7:28 pm

1 stop16h 13m

Lambert-St Louis

Mon 9/14

1:15 pm-8:15 am

1 stop12h 00m

$1,024

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 18% 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

14h 25m

Direct flights

None
The fastest flight from Prague to St. Louis takes 14h 25m
There are no direct flights from Prague to St. Louis. There are no popular flight routes from Prague to St. Louis.
Search flight deals

  • 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 14h 25m.

  • 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
Hermann
Fairview Heights
Florissant
Maryland Heights
O'Fallon
Collinsville
St. Peters
Wentzville
Alton
Fenton
Farmington
Clayton
Festus
Edwardsville
Eureka
Litchfield
Shrewsbury
Grafton

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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