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$421+ 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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PRG
Dec 20 — Dec 271
Sat 12/20
Sat 12/27
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 20, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$491
(Cheapflightsfares)

One-way from

$421
(Kiwi.com)

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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One-way flight 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 20, 2025.

This KAYAK deal was found by Cheapflights users on 11/20. 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 12/266:35 pmSTL - PRG
2 stops32h 15mLufthansa
Wed 1/73:10 pmPRG - STL
2 stops39h 49mLufthansa
Deal found 11/20$840
This Ovago deal was found by Cheapflights users on 11/19. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2511:05 amSTL - PRG
2 stops22h 00mLufthansa
Wed 1/76:55 pmPRG - STL
2 stops35h 03mLufthansa
Deal found 11/19$977
This United Airlines deal was found by Cheapflights users on 11/20. 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 12/259:55 amSTL - PRG
2 stops21h 45mUnited Airlines
Wed 1/73:10 pmPRG - STL
2 stops50h 03mUnited Airlines
Deal found 11/20$1,029
This Orbitz deal was found by Cheapflights users on 11/20. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2511:05 amSTL - PRG
2 stops15h 30mMultiple Airlines
Wed 1/76:45 amPRG - STL
2 stops39h 44mMultiple Airlines
Deal found 11/20$1,081
This Air Canada deal was found by Cheapflights users on 11/20. 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.
Fri 12/264:05 pmSTL - PRG
2 stops34h 45mMultiple Airlines
Wed 1/77:30 amPRG - STL
3 stops20h 43mMultiple Airlines
Deal found 11/20$1,323

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 20, 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

Fri 1/9

6:40 pm-10:25 pm

2 stops20h 45m

Václav Havel Prague

Mon 1/19

7:35 am-11:59 pm

2 stops23h 24m

$492

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 1/7

6:40 pm-10:25 pm

2 stops20h 45m

Václav Havel Prague

Fri 1/23

7:35 am-1:55 pm

1 stop13h 20m

$497

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 1/11

6:40 pm-10:25 pm

2 stops20h 45m

Václav Havel Prague

Sun 1/25

7:25 am-1:55 pm

1 stop13h 30m

$497

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 1/7

3:11 pm-4:05 pm

2 stops17h 54m

Václav Havel Prague

Wed 1/21

7:30 am-1:55 pm

1 stop13h 25m

$497

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Fri 1/9

3:50 pm-2:05 pm

1 stop15h 15m

Václav Havel Prague

Wed 1/21

7:30 am-1:55 pm

1 stop13h 25m

$504

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 1/7

3:50 pm-11:05 am

1 stop12h 15m

Václav Havel Prague

Sun 1/25

7:25 am-1:55 pm

1 stop13h 30m

$504

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Mon 1/12

9:45 am-11:40 am

2 stops18h 55m

Václav Havel Prague

Fri 1/23

6:00 am-8:37 pm

2 stops21h 37m

$507

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 1/11

6:40 pm-4:05 pm

2 stops14h 25m

Václav Havel Prague

Sat 1/24

7:35 am-4:03 pm

2 stops15h 28m

$507

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Fri 1/9

6:40 pm-10:25 pm

2 stops20h 45m

Václav Havel Prague

Mon 1/26

10:25 am-10:58 pm

2 stops19h 33m

$507

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 1/7

6:40 pm-4:05 pm

2 stops14h 25m

Václav Havel Prague

Sat 1/24

7:35 am-4:03 pm

2 stops15h 28m

$507

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 12 results
1
2

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 20, 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 20, 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
8,002 reviews

Boarding

8.1

Entertainment

7.9

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

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
8,002 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Entertainment

7.9

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

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
9,028 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Entertainment

7.9

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

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
10,462 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Entertainment

7.9

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

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
7,579 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Entertainment

7.9

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

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
7,533 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Entertainment

7.9

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

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 20h 45m. St. Louis and Czech Republic are separated by a distance of 4783 mi.

  • 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 20, 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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