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$638+ Cheap flights from St. Louis (STL) to the Czech Republic

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PRG
Dec 10 — Dec 171
Wed 12/10
Wed 12/17
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 November 10, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$500
(Cheapflightsfares)

Popular in

June

Cheapest in

March

Average price

$754
Provider with most accurate pricing for Lambert-St Louis-Václav Havel Prague flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Václav Havel Prague flights.
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From Lambert-St Louis to Czech Republic
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Highest demand for flights based on searches. 24% potential increase in price ($304 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 10, 2025.

This United Airlines deal was found by Cheapflights users on 11/9. 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 11/288:25 amSTL - PRG
2 stops19h 25mUnited Airlines
Fri 12/127:35 amPRG - STL
1 stop13h 20mUnited Airlines
Deal found 11/9$697
This Lufthansa deal was found by Cheapflights users on 11/9. 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.
Fri 11/283:50 pmSTL - PRG
1 stop19h 25mLufthansa
Fri 12/127:35 amPRG - STL
1 stop13h 20mLufthansa
Deal found 11/9$781
This United Airlines deal was found by Cheapflights users on 11/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/254:05 pmSTL - PRG
2 stops47h 20mUnited Airlines
Wed 1/712:10 pmPRG - STL
2 stops38h 17mUnited Airlines
Deal found 11/10$912
This United Airlines deal was found by Cheapflights users on 11/8. 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 12/236:35 pmSTL - PRG
2 stops40h 20mUnited Airlines
Tue 12/3011:50 amPRG - STL
1 stop33h 05mUnited Airlines
Deal found 11/8$981
This AirNGo deal was found by Cheapflights users on 11/7. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/84:49 pmSTL - PRG
2 stops35h 11mAer Lingus
Sat 12/1311:40 amPRG - STL
2 stops42h 58mAer Lingus
Deal found 11/7$1,077
This KAYAK deal was found by Cheapflights users on 11/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/263:50 pmSTL - PRG
1 stop15h 15mLufthansa
Wed 1/73:10 pmPRG - STL
2 stops39h 49mLufthansa
Deal found 11/9$1,087
This United Airlines deal was found by Cheapflights users on 11/9. 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 12/268:05 amSTL - PRG
2 stops23h 00mUnited Airlines
Wed 1/73:10 pmPRG - STL
2 stops35h 17mUnited Airlines
Deal found 11/9$1,093

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 November 10, 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 1/4

2:06 pm-1:35 pm

2 stops16h 29m

Václav Havel Prague

Tue 1/20

6:45 am-6:16 pm

2 stops18h 31m

$638

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Fri 11/28

8:25 am-10:50 am

2 stops19h 25m

Václav Havel Prague

Fri 12/12

7:35 am-5:03 pm

2 stops16h 28m

$702

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Fri 11/28

3:50 pm-6:15 pm

1 stop19h 25m

Václav Havel Prague

Fri 12/12

7:35 am-1:55 pm

1 stop13h 20m

$781

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Thu 12/25

4:05 pm-10:25 pm

2 stops47h 20m

Václav Havel Prague

Wed 1/7

12:10 pm-7:27 pm

2 stops38h 17m

$912

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Tue 12/23

6:35 pm-5:55 pm

2 stops40h 20m

Václav Havel Prague

Tue 12/30

11:50 am-1:55 pm

1 stop33h 05m

$981

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Mon 12/8

4:49 pm-11:00 am

2 stops35h 11m

Václav Havel Prague

Sat 12/13

11:40 am-11:38 pm

2 stops42h 58m

$1,077

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Fri 12/26

3:50 pm-2:05 pm

1 stop15h 15m

Václav Havel Prague

Wed 1/7

3:10 pm-11:59 pm

2 stops39h 49m

$1,087

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Fri 12/26

8:05 am-2:05 pm

2 stops23h 00m

Václav Havel Prague

Wed 1/7

3:10 pm-7:27 pm

2 stops35h 17m

$1,093

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

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, August is the cheapest month in which you can book a flight from St. Louis to Czech Republic (average of $604). Flying from St. Louis to Czech Republic in June is currently the most expensive (average of $1,071). 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 November 10, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 18% on flights from St. Louis to Czech Republic by exploring options for tickets in the evening.

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 November 10, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and Air Canada 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
7.9
Good
8,004 reviews

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,004 reviews
Delta
7.9
Good
8,004 reviews

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,011 reviews
Delta
7.9
Good
8,004 reviews

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air Canada
7.1
Good
10,429 reviews
Delta
7.9
Good
8,004 reviews

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Lufthansa
6.8
Okay
7,562 reviews
Delta
7.9
Good
8,004 reviews

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,508 reviews
Delta
7.9
Good
8,004 reviews

Entertainment

7.9

Overall

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 16h 29m. 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, August is the cheapest month in which you can book a flight from St. Louis to Czech Republic (average of $604). Flying from St. Louis to Czech Republic in June is currently the most expensive (average of $1,071). 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 November 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$582Average$744FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$655Average$866FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$683Average$1,134FlexibilityNo cancel feeOn-time76%
DeltaCheapest$728Average$1,208FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$731Average$1,303FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$745Average$1,087FlexibilityNo cancel feeOn-time67%

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