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Cheap flights from Prague to St. Louis from $519

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 10/7. 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 pmPRG  Václav Havel Prague-STL Lambert-St Louis
17h 55m2 stops Frankfurt am Main Boston Logan Intl
Multiple Airlines Logo
10:30 am - 8:30 pmSTL  Lambert-St Louis-PRG Václav Havel Prague
27h 00m2 stops Boston Logan Intl Frankfurt am Main
$775Multiple Airlines
Thu, Aug 27 - Sun, Sep 6
Multiple Airlines Logo
8:50 am - 7:45 pmPRG  Václav Havel Prague-STL Lambert-St Louis
17h 55m2 stops Frankfurt am Main Boston Logan Intl
Multiple Airlines Logo
10:25 am - 9:25 pmSTL  Lambert-St Louis-PRG Václav Havel Prague
28h 00m2 stops Boston Logan Intl Frankfurt am Main
$889Multiple Airlines
Thu, Aug 27 - Wed, Sep 2
Multiple Airlines Logo
8:50 am - 8:00 pmPRG  Václav Havel Prague-STL Lambert-St Louis
18h 10m2 stops Frankfurt am Main Boston Logan Intl
Multiple Airlines Logo
10:30 am - 8:30 pmSTL  Lambert-St Louis-PRG Václav Havel Prague
27h 00m2 stops Boston Logan Intl Frankfurt am Main
$912Multiple Airlines
Sun, Aug 30 - Sun, Sep 6
Lufthansa Logo
6:10 am - 1:25 pmPRG  Václav Havel Prague-STL Lambert-St Louis
14h 15m1 stop Frankfurt am Main
Lufthansa Logo
3:30 pm - 1:40 pmSTL  Lambert-St Louis-PRG Václav Havel Prague
15h 10m1 stop Frankfurt am Main
$1,027Lufthansa
Sun, Aug 30 - Sun, Sep 6
Lufthansa Logo
6:15 am - 1:25 pmPRG  Václav Havel Prague-STL Lambert-St Louis
14h 10m2 stops Munich Franz Josef Strauss Frankfurt am Main
Lufthansa Logo
3:30 pm - 1:40 pmSTL  Lambert-St Louis-PRG Václav Havel Prague
15h 10m1 stop Frankfurt am Main
$1,044Lufthansa
Sun, Aug 30 - Sun, Sep 6
Multiple Airlines Logo
6:10 am - 8:20 pmPRG  Václav Havel Prague-STL Lambert-St Louis
21h 10m2 stops Frankfurt am Main Toronto Pearson Intl
Multiple Airlines Logo
3:30 pm - 5:30 pmSTL  Lambert-St Louis-PRG Václav Havel Prague
19h 00m1 stop Frankfurt am Main
$1,050Multiple Airlines
Wed, Sep 16 - Wed, Sep 23
Scandinavian Airlines Logo
8:55 pm - 11:42 pmPRG  Václav Havel Prague-STL Lambert-St Louis
33h 47m2 stops Kastrup Copenhagen Atlanta Hartsfield-Jackson
Scandinavian Airlines Logo
2:30 pm - 8:15 pmSTL  Lambert-St Louis-PRG Václav Havel Prague
22h 45m2 stops Atlanta Hartsfield-Jackson Kastrup Copenhagen
$1,051Scandinavian Airlines
Thu, Oct 1 - Mon, Oct 5
Multiple Airlines Logo
9:10 am - 8:24 pmPRG  Václav Havel Prague-STL Lambert-St Louis
18h 14m2 stops Frankfurt am Main Toronto Pearson Intl
Multiple Airlines Logo
3:30 pm - 5:55 pmSTL  Lambert-St Louis-PRG Václav Havel Prague
19h 25m1 stop Frankfurt am Main
$1,051Multiple Airlines
Thu, Aug 27 - Sun, Sep 6
British Airways Logo
10:15 am - 11:34 pmPRG  Václav Havel Prague-STL Lambert-St Louis
20h 19m1 stop Philadelphia
British Airways Logo
9:40 pm - 8:10 pmSTL  Lambert-St Louis-PRG Václav Havel Prague
15h 30m1 stop London Heathrow
$1,053British Airways
Thu, Aug 27 - Sun, Sep 6
Lufthansa Logo
6:10 am - 1:25 pmPRG  Václav Havel Prague-STL Lambert-St Louis
14h 15m1 stop Frankfurt am Main
Lufthansa Logo
3:30 pm - 5:30 pmSTL  Lambert-St Louis-PRG Václav Havel Prague
19h 00m1 stop Frankfurt am Main
$1,053Lufthansa
Wed, Sep 16 - Wed, Sep 23

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United Airlines flights from Prague to St. Louis

Our best United Airlines deals on Prague to St. Louis flight tickets
United Airlines
Aug 12
PRG2:35 pmVáclav Havel Prague
35h 07m
2 stops
STL6:42 pmLambert-St Louis
Aug 20
STL10:53 amLambert-St Louis
20h 02m
2 stops
PRG1:55 pmVáclav Havel Prague
$1,057
United Airlines
Aug 27
PRG6:00 amVáclav Havel Prague
19h 42m
2 stops
STL6:42 pmLambert-St Louis
Sep 2
STL7:00 amLambert-St Louis
31h 20m
3 stops
PRG9:20 pmVáclav Havel Prague
$1,058
United Airlines
Aug 27
PRG2:30 pmVáclav Havel Prague
15h 29m
2 stops
STL10:59 pmLambert-St Louis
Sep 6
STL6:55 amLambert-St Louis
22h 45m
3 stops
PRG12:40 pmVáclav Havel Prague
$1,061

Lufthansa flights from Prague to St. Louis

Our best Lufthansa deals on Prague to St. Louis flight tickets
Lufthansa
Aug 30
PRG6:10 amVáclav Havel Prague
14h 15m
1 stop
STL1:25 pmLambert-St Louis
Sep 6
STL3:30 pmLambert-St Louis
15h 10m
1 stop
PRG1:40 pmVáclav Havel Prague
$1,027
Lufthansa
Aug 30
PRG6:15 amVáclav Havel Prague
14h 10m
2 stops
STL1:25 pmLambert-St Louis
Sep 6
STL3:30 pmLambert-St Louis
15h 10m
1 stop
PRG1:40 pmVáclav 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 August 6, 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 Václav Havel Prague - STL Lambert-St Louis

PRGSTL

Václav Havel Prague

Thu 8/27

8:50 am-7:45 pm

2 stops17h 55m

Lambert-St Louis

Sun 9/6

10:30 am-8:30 pm

2 stops27h 00m

$775

PragueSt. Louis

PRG Václav Havel Prague - STL Lambert-St Louis

PRGSTL

Václav Havel Prague

Thu 8/27

8:50 am-7:45 pm

2 stops17h 55m

Lambert-St Louis

Wed 9/2

10:25 am-9:25 pm

2 stops28h 00m

$889

PragueSt. Louis

PRG Václav Havel Prague - STL Lambert-St Louis

PRGSTL

Václav Havel Prague

Sun 8/30

8:50 am-8:00 pm

2 stops18h 10m

Lambert-St Louis

Sun 9/6

10:30 am-8:30 pm

2 stops27h 00m

$912

PragueSt. Louis

PRG Václav Havel Prague - STL Lambert-St Louis

PRGSTL

Václav Havel Prague

Sun 8/30

6:10 am-1:25 pm

1 stop14h 15m

Lambert-St Louis

Sun 9/6

3:30 pm-1:40 pm

1 stop15h 10m

$1,027
Quickest round-trip

PragueSt. Louis

PRG Václav Havel Prague - STL Lambert-St Louis

PRGSTL

Václav Havel Prague

Sun 8/30

6:15 am-1:25 pm

2 stops14h 10m

Lambert-St Louis

Sun 9/6

3:30 pm-1:40 pm

1 stop15h 10m

$1,044

PragueSt. Louis

PRG Václav Havel Prague - STL Lambert-St Louis

PRGSTL

Václav Havel Prague

Wed 9/16

6:10 am-8:20 pm

2 stops21h 10m

Lambert-St Louis

Wed 9/23

3:30 pm-5:30 pm

1 stop19h 00m

$1,050

PragueSt. Louis

PRG Václav Havel Prague - STL Lambert-St Louis

PRGSTL

Václav Havel Prague

Thu 10/1

8:55 pm-11:42 pm

2 stops33h 47m

Lambert-St Louis

Mon 10/5

2:30 pm-8:15 pm

2 stops22h 45m

$1,051

PragueSt. Louis

PRG Václav Havel Prague - STL Lambert-St Louis

PRGSTL

Václav Havel Prague

Thu 8/27

9:10 am-8:24 pm

2 stops18h 14m

Lambert-St Louis

Sun 9/6

3:30 pm-5:55 pm

1 stop19h 25m

$1,051

PragueSt. Louis

PRG Václav Havel Prague - STL Lambert-St Louis

PRGSTL

Václav Havel Prague

Thu 8/27

10:15 am-11:34 pm

1 stop20h 19m

Lambert-St Louis

Sun 9/6

9:40 pm-8:10 pm

1 stop15h 30m

$1,053

PragueSt. Louis

PRG Václav Havel Prague - STL Lambert-St Louis

PRGSTL

Václav Havel Prague

Wed 9/16

6:10 am-1:25 pm

1 stop14h 15m

Lambert-St Louis

Wed 9/23

3:30 pm-5:30 pm

1 stop19h 00m

$1,053

Flights are sorted by cheapest round-trip flights first.

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

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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 54m

Direct flights

None
The fastest flight from Prague to St. Louis takes 14h 54m
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 14h 54m.

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