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$655+ 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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
PRG — STL
Aug 28 — Sep 41
Fri 8/28
Fri 9/4
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 July 29, 2026.

This FlightHub deal was found by Cheapflights users on 7/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:20 pm
PRG
-
STL
2 stops35h 19m
Scandinavian Airlines
Sun 11/221:30 pm
STL
-
PRG
2 stops17h 50m
Scandinavian Airlines
Deal found 7/24$1,010
This Air Canada deal was found by Cheapflights users on 7/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1212:30 pm
PRG
-
STL
2 stops37h 12m
Air Canada
Sun 8/162:40 pm
STL
-
PRG
1 stop13h 10m
Air Canada
Deal found 7/28$1,011
This United Airlines deal was found by Cheapflights users on 7/26. 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 8/126:10 am
PRG
-
STL
2 stops16h 28m
United Airlines
Sun 8/169:30 am
STL
-
PRG
2 stops20h 10m
United Airlines
Deal found 7/26$1,039
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Thu 11/511:30 am
PRG
-
STL
2 stops34h 56m
United Airlines
Sun 11/83:40 pm
STL
-
PRG
1 stop11h 00m
United Airlines
Deal found 7/28$1,042
This Lufthansa deal was found by Cheapflights users on 7/24. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/172:50 pm
PRG
-
STL
1 stop29h 55m
Lufthansa
Sun 11/223:40 pm
STL
-
PRG
1 stop19h 40m
Lufthansa
Deal found 7/24$1,054
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Fri 12/256:50 am
PRG
-
STL
2 stops17h 18m
United Airlines
Tue 12/2911:15 am
STL
-
PRG
2 stops21h 50m
United Airlines
Deal found 7/25$1,063

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 July 29, 2026.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$812
(Mytrip)

One-way from

$655
(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
Search Deals

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 July 29, 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

Wed 8/12

12:30 pm-6:42 pm

2 stops37h 12m

Lambert-St Louis

Sun 8/16

2:40 pm-10:50 am

1 stop13h 10m

$1,011

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Mon 11/16

7:15 am-8:59 pm

2 stops20h 44m

Lambert-St Louis

Sun 11/22

1:40 pm-1:05 pm

2 stops16h 25m

$1,039
Quickest round-trip

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Wed 8/12

6:10 am-2:57 pm

2 stops15h 47m

Lambert-St Louis

Sun 8/16

3:30 pm-1:40 pm

1 stop15h 10m

$1,040

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Tue 11/17

7:15 am-9:52 pm

2 stops21h 37m

Lambert-St Louis

Sun 11/22

3:40 pm-10:45 am

1 stop12h 05m

$1,040

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Thu 11/5

11:30 am-3:26 pm

2 stops34h 56m

Lambert-St Louis

Sun 11/8

3:40 pm-9:40 am

1 stop11h 00m

$1,042
Cheapest one-way

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Sun 1/17

3:05 pm-9:08 pm

2 stops37h 03m

$655

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Mon 8/31

8:50 am-7:45 pm

2 stops17h 55m

$794

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Mon 8/31

10:15 am-11:34 pm

1 stop20h 19m

$874
Quickest one-way

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Sun 1/17

7:05 am-1:45 pm

1 stop13h 40m

$1,057

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

Wed 9/23

6:50 am-3:38 pm

2 stops15h 48m

$1,716

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 12 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 20h 44m. Fly via Air Canada 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
Farmington

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