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St. Louis

$526+ Cheap flights from Prague (PRG) to St. Louis (STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
PRG — STL
Jul 10 — Jul 171
Fri 7/10
Fri 7/17
1 adult, Economy
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Cheap flight deals from Prague to St. Louis

Cheapest flights from Prague to St. Louis
Explore the most affordable flight options available from Prague to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 10, 2026.

This British Airways deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2410:15 am
PRG
-
STL
1 stop20h 44m
British Airways
Tue 7/79:39 am
STL
-
PRG
2 stops30h 46m
British Airways
Deal found 6/8$970
This British Airways deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/2510:15 am
PRG
-
STL
1 stop20h 44m
British Airways
Mon 6/298:14 pm
STL
-
PRG
2 stops19h 36m
British Airways
Deal found 6/10$973
This British Airways deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/2510:15 am
PRG
-
STL
1 stop20h 44m
British Airways
Sun 7/511:15 am
STL
-
PRG
1 stop14h 00m
British Airways
Deal found 6/8$979
This British Airways deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:50 am
PRG
-
STL
2 stops19h 40m
British Airways
Sat 12/54:49 pm
STL
-
PRG
2 stops20h 01m
British Airways
Deal found 6/8$983
This American Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1710:15 am
PRG
-
STL
1 stop18h 28m
American Airlines
Sun 9/203:34 pm
STL
-
PRG
2 stops18h 31m
American Airlines
Deal found 6/8$984
This Condor deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/298:50 am
PRG
-
STL
2 stops18h 40m
Multiple Airlines
Wed 8/1910:25 am
STL
-
PRG
2 stops28h 00m
Multiple Airlines
Deal found 6/8$1,029
This Iberia deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2410:15 am
PRG
-
STL
1 stop20h 44m
Iberia
Thu 7/22:31 pm
STL
-
PRG
2 stops21h 24m
Iberia
Deal found 6/8$1,033
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:10 am
PRG
-
STL
1 stop14h 15m
United Airlines
Wed 8/1912:27 pm
STL
-
PRG
2 stops18h 28m
United Airlines
Deal found 6/8$1,035
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:10 am
PRG
-
STL
1 stop14h 15m
United Airlines
Thu 8/2012:59 pm
STL
-
PRG
2 stops12h 56m
United Airlines
Deal found 6/8$1,038

Find flight deals from Prague to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Prague (PRG) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 10, 2026.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$970
(British Airways)

One-way from

$526
(Kiwi.com)
Provider with most accurate pricing for Václav Havel Prague-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Václav Havel Prague-Lambert-St Louis flights.
Search Deals
From Václav Havel Prague to Lambert-St Louis
Search Deals
One-way flight from Václav Havel Prague to Lambert-St Louis
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Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated June 10, 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 6/25

10:15 am-11:59 pm

1 stop20h 44m

Lambert-St Louis

Mon 6/29

8:14 pm-10:50 pm

2 stops19h 36m

$973

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Thu 6/25

10:15 am-8:50 am

2 stops29h 35m

Lambert-St Louis

Mon 6/29

9:09 am-8:15 am

2 stops16h 06m

$979

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Thu 6/25

10:15 am-11:59 pm

1 stop20h 44m

Lambert-St Louis

Mon 7/6

11:15 am-8:15 am

1 stop14h 00m

$979

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Thu 9/17

10:15 am-9:43 pm

1 stop18h 28m

Lambert-St Louis

Sun 9/20

3:34 pm-5:05 pm

2 stops18h 31m

$984

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Wed 7/29

6:10 am-1:25 pm

1 stop14h 15m

Lambert-St Louis

Tue 8/18

12:59 pm-1:55 pm

2 stops17h 56m

$1,035

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Tue 7/28

6:10 am-1:25 pm

1 stop14h 15m

Lambert-St Louis

Fri 8/14

12:59 pm-1:55 pm

2 stops17h 56m

$1,035

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Tue 7/28

6:10 am-1:25 pm

1 stop14h 15m

Lambert-St Louis

Wed 8/19

12:59 pm-8:55 am

2 stops12h 56m

$1,038
Quickest round-trip

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Wed 8/26

6:10 am-1:25 pm

1 stop14h 15m

Lambert-St Louis

Sun 8/30

3:30 pm-10:45 am

1 stop12h 15m

$1,039
Cheapest one-way

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Tue 8/25

6:20 am-6:08 pm

3 stops42h 48m

$526

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Tue 8/25

10:15 am-11:34 pm

1 stop20h 19m

$655

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/6

Showing 1-10 of 15 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on Prague-St. Louis flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Prague-St. Louis flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Prague-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Prague-St. Louis flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Prague-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Prague to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Prague with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Prague to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Prague to St. Louis?

    There are many flights that can get you from Prague to St. Louis in 14h 15m. Fly via American Airlines or United Airlines to get the fastest option. There are 4783 mi between Prague and St. Louis. This flight may include one or multiple stops.

  • Can I find deals for flights from Prague to St. Louis that include hotel bookings?

    Yes. In addition to deals on Prague to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Prague to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Prague to St. Louis.

  • Can I find deals for business class flights from Prague to St. Louis?

    Yes. Cheapflights offers flight deals from Prague to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Alton
Farmington

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