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$500+ Cheap flights from St. Louis (STL) to Prague (PRG)

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 6/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PRG
Apr 30 — May 71
Thu 4/30
Thu 5/7
1 adult, Economy
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Cheap flight deals from St. Louis to Prague

Cheapest flights from St. Louis to Prague
Explore the most affordable flight options available from St. Louis to Prague. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 31, 2026.

This KAYAK deal was found by Cheapflights users on 3/28. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/103:42 pm
STL
-
PRG
2 stops34h 58m
Scandinavian Airlines
Fri 9/188:55 pm
PRG
-
STL
2 stops30h 55m
Scandinavian Airlines
Deal found 3/28$757
This United Airlines deal was found by Cheapflights users on 3/26. 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.
Mon 12/71:30 pm
STL
-
PRG
2 stops25h 55m
United Airlines
Wed 12/97:35 am
PRG
-
STL
1 stop13h 20m
United Airlines
Deal found 3/26$801
This United Airlines deal was found by Cheapflights users on 3/29. 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.
Mon 8/175:32 pm
STL
-
PRG
2 stops34h 18m
United Airlines
Fri 8/216:00 am
PRG
-
STL
2 stops45h 07m
United Airlines
Deal found 3/29$806
This FlightHub deal was found by Cheapflights users on 3/27. 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.
Wed 8/198:55 am
STL
-
PRG
1 stop18h 55m
Multiple Airlines
Wed 10/287:35 am
PRG
-
STL
1 stop13h 20m
Multiple Airlines
Deal found 3/27$843
This United Airlines deal was found by Cheapflights users on 3/27. 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 8/196:00 am
STL
-
PRG
2 stops19h 55m
United Airlines
Wed 10/287:35 am
PRG
-
STL
1 stop13h 20m
United Airlines
Deal found 3/27$846
This Booking.com deal was found by Cheapflights users on 3/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:00 am
STL
-
PRG
2 stops22h 50m
Air Canada
Wed 10/2811:50 am
PRG
-
STL
2 stops33h 40m
Air Canada
Deal found 3/27$851
This United Airlines deal was found by Cheapflights users on 3/29. 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 4/2911:37 am
STL
-
PRG
2 stops18h 08m
United Airlines
Fri 5/86:00 am
PRG
-
STL
1 stop14h 25m
United Airlines
Deal found 3/29$853
This FlightHub deal was found by Cheapflights users on 3/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:55 pm
STL
-
PRG
2 stops15h 35m
Lufthansa
Fri 5/86:00 am
PRG
-
STL
1 stop14h 25m
Lufthansa
Deal found 3/26$858
This FlightHub deal was found by Cheapflights users on 3/30. 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.
Mon 9/146:55 pm
STL
-
PRG
2 stops19h 25m
Lufthansa
Mon 9/216:35 pm
PRG
-
STL
1 stop25h 50m
Lufthansa
Deal found 3/30$859

Find flight deals from St. Louis to Prague

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Prague (PRG). 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 March 31, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$757
(KAYAK)

One-way from

$500
(Gotogate)

Popular in

June

Cheapest in

February

Average price

$764
Provider with most accurate pricing for Lambert-St Louis-Václav Havel Prague flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Václav Havel Prague flights.
Search Deals
From Lambert-St Louis to Václav Havel Prague
Search Deals
One-way flight from Lambert-St Louis to Václav Havel Prague
Search Deals
Highest demand for flights based on searches. 28% potential increase in price ($363 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($43 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Prague 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 March 31, 2026.
Use the filters below to find and compare flights from St. Louis to Prague that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Mon 8/17

5:32 pm-10:50 am

2 stops34h 18m

Václav Havel Prague

Fri 8/21

6:00 am-2:02 pm

2 stops39h 02m

$806

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 4/29

11:37 am-12:45 pm

2 stops18h 08m

Václav Havel Prague

Fri 5/8

6:00 am-1:25 pm

1 stop14h 25m

$853
Quickest round-trip

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 4/29

12:23 pm-10:30 am

2 stops15h 07m

Václav Havel Prague

Fri 5/8

11:00 am-9:09 pm

2 stops17h 09m

$862
Cheapest one-way

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sat 6/27

4:13 pm-9:00 am

1 stop33h 47m

$508

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sat 6/13

5:33 pm-4:55 pm

3 stops40h 22m

$534

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Mon 6/15

4:10 pm-4:55 pm

2 stops41h 45m

$565

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 4/15

1:10 pm-9:20 pm

2 stops25h 10m

$607

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Fri 4/24

12:27 pm-11:10 am

2 stops15h 43m

$648

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Fri 4/24

6:55 pm-4:05 pm

2 stops14h 10m

$653

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Fri 4/24

3:30 pm-5:50 pm

1 stop19h 20m

$678

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/29

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

Compare providers for flights from St. Louis to Prague

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Prague in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Prague flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Prague flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Prague flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Prague flights, Cheapflights users trust FlightHub the most. FlightHub 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 St. Louis-Prague 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 St. Louis to Prague

Have a flexible travel schedule? Discover the best time to fly to Prague 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 Prague

How much does it cost to fly round-trip from St. Louis to Prague?

Reviews of airlines servicing Prague

Get insights into the airlines that provide service to Prague. 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 Prague. Reviews last updated March 31, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andLufthansa from St. Louis to Prague. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,360 reviews

Boarding

8.1

Entertainment

7.8

Food

7.2

Comfort

7.9

Crew

8.5

Overall

7.9

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
8,360 reviews
Delta
7.9
Good
8,360 reviews

Boarding

8.1

Entertainment

7.8

Food

7.2

Comfort

7.9

Crew

8.5

Overall

7.9

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
9,520 reviews
Delta
7.9
Good
8,360 reviews

Boarding

8.1

Entertainment

7.8

Food

7.2

Comfort

7.9

Crew

8.5

Overall

7.9

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
7,877 reviews
Delta
7.9
Good
8,360 reviews

Boarding

8.1

Entertainment

7.8

Food

7.2

Comfort

7.9

Crew

8.5

Overall

7.9

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
7,834 reviews
Delta
7.9
Good
8,360 reviews

Boarding

8.1

Entertainment

7.8

Food

7.2

Comfort

7.9

Crew

8.5

Overall

7.9

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 Prague. 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 St. Louis to Prague?

    United Airlines can get you from St. Louis to Prague in just under 34h 18m. Your travel time can differ by up to . The distance between St. Louis and Prague is about 4783 mi.

  • What are the cheapest airlines flying from St. Louis to Prague round-trip?

    According to our current data, United Airlines ($500), Lufthansa ($572), and British Airways ($582) offers the cheapest pricing from St. Louis to Prague. United Airlines is priced at 45% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Prague 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

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Alternative routes for St. Louis to Prague

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to Prague flights

Top 4 airlines flying from St. Louis to Prague

Discover the top 4 airlines that operate flights from St. Louis to Prague. 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 March 31, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$500Average$803FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$572Average$837FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$582Average$726FlexibilityNo cancel feeOn-time70%
DeltaCheapest$908Average$1,004FlexibilityNo cancel feeOn-timeN/A

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