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$427+ Cheap flights from St. Louis (STL) to the Czech Republic

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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PRG
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from St. Louis to Czech Republic

Keep the following information in mind while searching for St. Louis to Czech Republic flight deals. Data was last updated September 17, 2025.

Round-trip from

$515
(Gotogate)

One-way from

$427
(American Airlines)

Popular in

June

Cheapest in

March

Average price

$746
From Lambert-St Louis to Czech Republic
Search Deals
One-way flight from Lambert-St Louis to Czech Republic
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($303 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from St. Louis to Czech Republic

Cheapest flights from St. Louis to Czech Republic
Explore the most affordable flight options available from St. Louis to Czech Republic. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Gotogate deal was found by Cheapflights users on 9/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/199:15 amSTL - PRG
2 stops21h 45mAir Canada
Tue 11/410:00 amPRG - STL
2 stops36h 29mAir Canada
Deal found 9/16$515
This United deal was found by Cheapflights users on 9/16. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/193:30 pmSTL - PRG
1 stop11h 10mMultiple Airlines
Tue 11/411:50 amPRG - STL
2 stops18h 54mMultiple Airlines
Deal found 9/16$534
This Lufthansa deal was found by Cheapflights users on 9/16. 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.
Sun 10/193:30 pmSTL - PRG
1 stop19h 20mLufthansa
Tue 11/43:05 pmPRG - STL
1 stop29h 50mLufthansa
Deal found 9/16$547
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/314:43 pmSTL - PRG
2 stops23h 42mUnited Airlines
Fri 11/77:35 amPRG - STL
1 stop13h 20mUnited Airlines
Deal found 9/15$578
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/3012:31 pmSTL - PRG
2 stops21h 34mUnited Airlines
Thu 11/67:35 amPRG - STL
2 stops38h 54mUnited Airlines
Deal found 9/15$584
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/153:30 pmSTL - PRG
1 stop19h 25mLufthansa
Wed 10/2210:25 amPRG - STL
2 stops20h 32mLufthansa
Deal found 9/15$586
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/151:30 pmSTL - PRG
2 stops21h 25mUnited Airlines
Wed 10/2211:40 amPRG - STL
2 stops34h 38mUnited Airlines
Deal found 9/16$589
This Air Canada deal was found by Cheapflights users on 9/15. 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 10/151:30 pmSTL - PRG
2 stops21h 25mAir Canada
Mon 10/201:35 pmPRG - STL
2 stops56h 43mAir Canada
Deal found 9/15$610
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/153:30 pmSTL - PRG
1 stop19h 25mUnited Airlines
Mon 10/202:30 pmPRG - STL
2 stops32h 14mUnited Airlines
Deal found 9/15$612
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Sat 11/14:48 pmSTL - PRG
2 stops47h 37mUnited Airlines
Sat 11/83:10 pmPRG - STL
1 stop29h 45mUnited Airlines
Deal found 9/17$613

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Czech Republic 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 September 17, 2025.
Use the filters below to find and compare flights from St. Louis to the Czech Republic that are best for you.

Fly from

St. Louis

Fly to

Czech Republic

Route

Depart

Return

Price

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 10/19

9:15 am-2:00 pm

2 stops21h 45m

Václav Havel Prague

Tue 11/4

10:00 am-3:29 pm

2 stops36h 29m

$515

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 10/19

3:30 pm-9:40 am

1 stop11h 10m

Václav Havel Prague

Tue 11/4

11:50 am-11:44 pm

2 stops18h 54m

$534

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Tue 12/2

4:05 pm-8:45 am

2 stops33h 40m

Václav Havel Prague

Tue 12/23

7:25 am-3:29 pm

2 stops39h 04m

$534

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 10/19

3:30 pm-5:50 pm

1 stop19h 20m

Václav Havel Prague

Tue 11/4

3:05 pm-1:55 pm

1 stop29h 50m

$547

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Fri 10/31

4:43 pm-10:25 pm

2 stops23h 42m

Václav Havel Prague

Fri 11/7

7:35 am-1:55 pm

1 stop13h 20m

$578

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Thu 10/30

12:31 pm-4:05 pm

2 stops21h 34m

Václav Havel Prague

Thu 11/6

7:35 am-3:29 pm

2 stops38h 54m

$584

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 10/15

1:30 pm-5:55 pm

2 stops21h 25m

Václav Havel Prague

Wed 10/22

11:40 am-3:18 pm

2 stops34h 38m

$589

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 10/15

1:30 pm-5:55 pm

2 stops21h 25m

Václav Havel Prague

Mon 10/20

1:35 pm-3:18 pm

2 stops56h 43m

$610

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 10/15

1:30 pm-5:55 pm

2 stops21h 25m

Václav Havel Prague

Mon 10/20

10:25 am-2:27 pm

2 stops35h 02m

$612

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 11/12

3:38 pm-5:30 pm

2 stops18h 52m

$427

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 13 results
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Best time to book a flight from St. Louis to Czech Republic

Have a flexible travel schedule? Discover the best time to fly to Czech Republic from St. Louis 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.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to the Czech Republic

What is the cheapest month to book a flight from St. Louis to Czech Republic?

Currently, November is the cheapest month in which you can book a flight from St. Louis to Czech Republic (average of $651). Flying from St. Louis to Czech Republic in June is currently the most expensive (average of $1,119). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to CZ?

Find hourly flight availability from St. Louis to Czech Republic. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

When flying from St. Louis to Czech Republic, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Czech Republic

Get insights into the airlines that provide service to Czech Republic. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Czech Republic. Reviews last updated September 17, 2025.
Get a feel of what it's like to fly with Delta, KLM, and United Airlines from St. Louis to the Czech Republic by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,961 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,386 reviews
Delta
8.0
Very good
7,961 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,926 reviews
Delta
8.0
Very good
7,961 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
10,000 reviews
Delta
8.0
Very good
7,961 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Lufthansa
6.8
Okay
7,409 reviews
Delta
8.0
Very good
7,961 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

  • What airport do you fly from for flights from St. Louis to Czech Republic?

    If you book a flight to Czech Republic from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

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

    Departing from St. Louis to Czech Republic will take you 19h 20m. St. Louis and Czech Republic are separated by a distance of 4783 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from St. Louis to Czech Republic?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Czech Republic (average of $651). Flying from St. Louis to Czech Republic in June is currently the most expensive (average of $1,119). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for St. Louis to Czech Republic

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Top 6 airlines flying from St. Louis to Czech Republic

Discover the top 6 airlines that operate flights from St. Louis to Czech Republic. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$582Average$793FlexibilityNo cancel feeOn-time70%
DeltaCheapest$657Average$1,208FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$683Average$1,174FlexibilityNo cancel feeOn-time76%
KLMCheapest$708Average$1,303FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$723Average$988FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$745Average$1,087FlexibilityNo cancel feeOn-time67%

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