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$470+ 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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
STL — PRG
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap 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 June 12, 2025.

Round-trip from

$584
(Delta)

One-way from

$470
(Kiwi.com)

Popular in

June

Cheapest in

March

Average price

$1,349
From Lambert-St Louis to Václav Havel Prague
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One-way flight from Lambert-St Louis to Václav Havel Prague
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Highest demand for flights based on searches. 25% potential increase in price ($317 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find 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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/312:15 pmSTL - PRG
1 stop13h 45mDelta
Tue 8/1911:00 amPRG - STL
1 stop16h 57mDelta
Deal found 6/10$584
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Mon 11/243:15 pmSTL - PRG
2 stops15h 40mUnited Airlines
Wed 12/37:20 amPRG - STL
1 stop13h 35mUnited Airlines
Deal found 6/9$612
This FlightHub deal was found by Cheapflights users on 6/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/263:50 pmSTL - PRG
1 stop12h 15mLufthansa
Wed 12/37:20 amPRG - STL
1 stop13h 35mLufthansa
Deal found 6/9$613
This Justfly.com deal was found by Cheapflights users on 6/9. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/263:50 pmSTL - PRG
1 stop10h 55mMultiple Airlines
Tue 12/27:20 amPRG - STL
2 stops15h 06mMultiple Airlines
Deal found 6/9$620
This Air Canada deal was found by Cheapflights users on 6/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/244:15 pmSTL - PRG
2 stops33h 30mAir Canada
Mon 12/111:50 amPRG - STL
2 stops34h 36mAir Canada
Deal found 6/9$640
This Scandinavian Airlines deal was found by Cheapflights users on 6/9. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/271:30 pmSTL - PRG
2 stops37h 15mScandinavian Airlines
Fri 12/510:25 amPRG - STL
2 stops20h 14mScandinavian Airlines
Deal found 6/9$648
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/158:01 pmSTL - PRG
2 stops17h 44mAmerican Airlines
Wed 10/228:10 amPRG - STL
2 stops17h 08mAmerican Airlines
Deal found 6/11$666
This Brussels Airlines deal was found by Cheapflights users on 6/9. 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 Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/271:00 pmSTL - PRG
3 stops26h 10mBrussels Airlines
Tue 12/26:50 amPRG - STL
2 stops18h 43mBrussels Airlines
Deal found 6/9$1,043
This AranGrant deal was found by Cheapflights users on 6/10. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/201:55 pmSTL - PRG
2 stops25h 55mBritish Airways
Mon 12/296:45 amPRG - STL
2 stops18h 13mBritish Airways
Deal found 6/10$5,500

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 June 12, 2025.
Use the filters below to find and compare flights from St. Louis to Prague that are best for you.

Fly from

St. Louis

Fly to

Prague

Route

Depart

Return

Price

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 8/3

6:48 pm-9:00 am

1 stop31h 12m

Václav Havel Prague

Tue 8/19

11:00 am-9:32 am

2 stops29h 32m

$584

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Mon 11/24

3:15 pm-1:55 pm

2 stops15h 40m

Václav Havel Prague

Wed 12/3

7:20 am-1:55 pm

1 stop13h 35m

$612

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 11/26

3:50 pm-11:05 am

1 stop12h 15m

Václav Havel Prague

Wed 12/3

7:20 am-1:55 pm

1 stop13h 35m

$613

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 11/26

3:50 pm-9:45 am

1 stop10h 55m

Václav Havel Prague

Tue 12/2

7:20 am-3:26 pm

2 stops15h 06m

$620

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Mon 11/24

4:15 pm-8:45 am

2 stops33h 30m

Václav Havel Prague

Mon 12/1

11:50 am-3:26 pm

2 stops34h 36m

$640

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Thu 11/27

1:30 pm-9:45 am

2 stops37h 15m

Václav Havel Prague

Fri 12/5

10:25 am-11:39 pm

2 stops20h 14m

$648

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 10/15

8:01 pm-8:45 pm

2 stops17h 44m

Václav Havel Prague

Wed 10/22

8:10 am-6:18 pm

2 stops17h 08m

$666

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Thu 11/27

1:00 pm-10:10 pm

3 stops26h 10m

Václav Havel Prague

Tue 12/2

6:50 am-6:33 pm

2 stops18h 43m

$1,043

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 11/2

7:37 pm-8:40 pm

3 stops42h 03m

$470

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 11/2

4:07 pm-6:10 pm

2 stops19h 03m

$473

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 12 results
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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

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

Currently, November is the cheapest month in which you can book a flight from St. Louis to Prague (average of $651). Flying from St. Louis to Prague in June is currently the most expensive (average of $1,132). 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 PRG?

Find hourly flight availability from St. Louis to Prague. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

One of the essential ways to save on airfare from St. Louis to Prague is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 17% on airfare.

Rainfall in Prague by month

Plan your trip to Prague by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Prague ranges from 0.4 - 2.4 inches per month. June is typically the wettest month, when rainfall can reach 2.4 in. February is typically the driest time to visit Prague when rainfall is around 0.4 in.

Temperature in Prague by month

Plan your trip to Prague by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Prague, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 June 12, 2025.
To help decide which airline to fly from St. Louis to Prague, see what other customers have to say about Delta, Brussels Airlines and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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!
Brussels Airlines
7.4
Good
355 reviews
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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!
Scandinavian Airlines
7.3
Good
1,387 reviews
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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 Prague. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    According to our current data, Delta ($584), United Airlines ($612), and Lufthansa ($613) offers the cheapest pricing from St. Louis to Prague. Delta is priced at 38% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from St. Louis to Prague one-way?

    For one-way options, check prices for British Airways. According to our data, you can fly for as low as $473. Users have also found prices from $480 and $488 on Scandinavian Airlines and Lufthansa, respectively.

  • 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.

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

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Prague (average of $651). Flying from St. Louis to Prague in June is currently the most expensive (average of $1,132). 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

Browse thousands of different options on Cheapflights for your next trip

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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 6 airlines flying from St. Louis to Prague

Discover the top 6 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$582Average$839FlexibilityNo cancel feeOn-time70%
DeltaCheapest$642Average$1,208FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$683Average$1,168FlexibilityNo cancel feeOn-time76%
KLMCheapest$708Average$1,303FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$744Average$1,046FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$745Average$1,087FlexibilityNo cancel feeOn-time67%

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