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

According to our current data, Delta ($765), Lufthansa ($869), and Air Canada ($2,969) offers the cheapest pricing from Prague to St. Louis. You may be able to fly from Prague to St. Louis for 13% less than the average price by searching for these airlines.

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

Currently, August is the cheapest month in which you can book a flight from Prague to St. Louis (average of $311). Flying from Prague to St. Louis in March is currently the most expensive (average of $356). 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 day to fly from Prague to St. Louis?

Travelers seeking maximum savings on their Prague to St. Louis flight should consider departing on Monday mornings when fares are most often at their lowest. Wednesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from Prague to St. Louis?

Users have found that flying from Prague to St. Louis on a Tuesday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

What is the cheapest month to fly from Prague to St. Louis?

Flights from Prague to St. Louis lean towards being more expensive in August. Prices are generally better when you fly from Prague to St. Louis in January, with the cheapest ticket starting at $796.

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

A simple way to save on the total cost of your ticket is to fly from Prague to St. Louis in the morning. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight at noon.

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

Most trusted provider : When it comes to deals on Prague-St. Louis 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 Prague-St. Louis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

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

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

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

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

$612+ Flights from Prague to St. Louis

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1. Tell us where you want to go

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Cheap flight deals from Prague to St. Louis

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$765 (Delta)
One-way from	$612 (Kiwi.com)
Popular in	August
Cheapest in	January
Average price	$888

Provider with most accurate pricing for Václav Havel Prague-Lambert-St Louis flight deals.

Search Deals

Provider most trusted by Cheapflights users for Václav Havel Prague-Lambert-St Louis flights.

Search Deals

From Václav Havel Prague to Lambert-St Louis

Search Deals

One-way flight from Václav Havel Prague to Lambert-St Louis

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($83 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).

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Average for round-trip flights in April 2025

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Find flight deals from Prague to St. Louis

Cheapest flights from Prague to St. Louis
Explore the most affordable flight options available from Prague to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on aprile 4, 2025.

mar 4/226:00 amPRG - STL

2 stops17h 47mDelta

mar 4/291:46 pmSTL - PRG

2 stops14h 59mDelta

Deal found 4/4

$765

mar 4/226:40 pmPRG - STL

1 stop25h 50mLufthansa

mar 4/291:00 pmSTL - PRG

2 stops13h 40mLufthansa

Deal found 4/4

$869

mar 4/2210:15 amPRG - STL

3 stops35h 34mMultiple Airlines

mar 4/293:30 pmSTL - PRG

2 stops23h 00mMultiple Airlines

Deal found 4/4

$1,120

mer 8/131:40 pmPRG - STL

1 stop32h 41mAir Canada

ven 8/294:00 pmSTL - PRG

1 stop13h 10mAir Canada

Deal found 4/3

$2,969

lun 8/111:40 pmPRG - STL

1 stop13h 00mUnited Airlines

ven 8/299:15 amSTL - PRG

1 stop19h 55mUnited Airlines

Deal found 4/3

$3,035

ven 8/1511:50 amPRG - STL

2 stops18h 59mAmerican Airlines

ven 8/291:22 pmSTL - PRG

2 stops16h 53mAmerican Airlines

Deal found 4/3

$3,095

gio 8/147:30 amPRG - STL

2 stops17h 37mAustrian Airlines

ven 8/2911:19 amSTL - PRG

2 stops16h 11mAustrian Airlines

Deal found 4/3

$3,528

mar 8/1211:50 amPRG - STL

2 stops38h 10mBrussels Airlines

ven 8/291:00 pmSTL - PRG

2 stops15h 00mBrussels Airlines

Deal found 4/4

$3,704

Best flights from Prague to St. Louis
Discover carefully curated flight deals from Prague to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated aprile 4, 2025.

mar 4/226:00 amPRG - STL

2 stops17h 47mDelta

mar 4/291:46 pmSTL - PRG

2 stops14h 59mDelta

Deal found 4/4

$765

mar 4/226:40 pmPRG - STL

1 stop25h 50mLufthansa

mar 4/291:00 pmSTL - PRG

2 stops13h 40mLufthansa

Deal found 4/4

$869

mar 4/2210:15 amPRG - STL

3 stops35h 34mMultiple Airlines

mar 4/293:30 pmSTL - PRG

2 stops23h 00mMultiple Airlines

Deal found 4/4

$1,120

mer 8/131:40 pmPRG - STL

1 stop32h 41mAir Canada

ven 8/294:00 pmSTL - PRG

1 stop13h 10mAir Canada

Deal found 4/3

$2,969

lun 8/111:40 pmPRG - STL

1 stop13h 00mUnited Airlines

ven 8/299:15 amSTL - PRG

1 stop19h 55mUnited Airlines

Deal found 4/3

$3,035

ven 8/1511:50 amPRG - STL

2 stops18h 59mAmerican Airlines

sab 8/304:52 pmSTL - PRG

2 stops16h 38mAmerican Airlines

Deal found 4/3

$3,095

gio 8/147:30 amPRG - STL

2 stops17h 37mAustrian Airlines

ven 8/2911:19 amSTL - PRG

2 stops16h 11mAustrian Airlines

Deal found 4/3

$3,528

mar 8/1211:50 amPRG - STL

2 stops38h 10mBrussels Airlines

ven 8/291:00 pmSTL - PRG

2 stops15h 00mBrussels Airlines

Deal found 4/4

$3,704

Last-minute flights from Prague to St. Louis
Discover last-minute flight deals from Prague to St. Louis. Data last updated aprile 4, 2025 and is based on user searches.

mar 4/226:00 amPRG - STL

2 stops17h 47mDelta

mar 4/291:46 pmSTL - PRG

2 stops14h 59mDelta

Deal found 4/4

$765

mar 4/226:40 pmPRG - STL

1 stop25h 50mLufthansa

mar 4/291:00 pmSTL - PRG

2 stops13h 40mLufthansa

Deal found 4/4

$869

mar 4/2210:15 amPRG - STL

3 stops35h 34mMultiple Airlines

mar 4/293:30 pmSTL - PRG

2 stops23h 00mMultiple Airlines

Deal found 4/4

$1,120

One-way flights from Prague to St. Louis
Search for one-way flight options from Prague to St. Louis. Find affordable one-way fares based on user searches. Data last updated aprile 4, 2025.

mar 6/245:00 pmPRG - STL

3 stops51h 42mMultiple Airlines

Deal found 4/4

$612

mar 6/248:10 amPRG - STL

2 stops22h 44mFinnair

Deal found 4/4

$719

mar 6/242:30 pmPRG - STL

1 stop30h 00mLufthansa

Deal found 4/4

$1,066

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

mar 4/22

6:00 am-4:47 pm

2 stops17h 47m

Lambert-St Louis

mar 4/29

1:46 pm-11:45 am

2 stops14h 59m

$765

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

mar 4/22

6:40 pm-1:30 pm

1 stop25h 50m

Lambert-St Louis

mar 4/29

1:00 pm-9:40 am

2 stops13h 40m

$869

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

mar 4/22

10:15 am-2:49 pm

3 stops35h 34m

Lambert-St Louis

mar 4/29

3:30 pm-9:30 pm

2 stops23h 00m

$1,120

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

mer 8/13

1:40 pm-3:21 pm

1 stop32h 41m

Lambert-St Louis

ven 8/29

4:00 pm-12:10 pm

1 stop13h 10m

$2,969

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

lun 8/11

1:40 pm-7:40 pm

1 stop13h 00m

Lambert-St Louis

ven 8/29

9:15 am-12:10 pm

1 stop19h 55m

$3,035

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

ven 8/15

11:50 am-11:49 pm

2 stops18h 59m

Lambert-St Louis

sab 8/30

4:52 pm-4:30 pm

2 stops16h 38m

$3,095

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

gio 8/14

7:30 am-6:07 pm

2 stops17h 37m

Lambert-St Louis

ven 8/29

11:19 am-10:30 am

2 stops16h 11m

$3,528

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

mar 8/12

11:50 am-7:00 pm

2 stops38h 10m

Lambert-St Louis

ven 8/29

1:00 pm-11:00 am

2 stops15h 00m

$3,704

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

mar 6/24

5:00 pm-1:42 pm

3 stops51h 42m

$612

PragueSt. Louis

PRG - STL

PRGSTL

Václav Havel Prague

mar 6/24

8:10 am-11:54 pm

2 stops22h 44m

$719

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/4

Showing 1-10 of 11 results

Compare providers for flights from Prague to St. Louis

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Prague to St. Louis in April.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*1 star

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

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

Rainfall in St. Louis by month

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Delta

8.0

Very good

7,900 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

7,900 reviews

Delta

8.0

Very good

7,900 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair

7.6

Good

1,267 reviews

Delta

8.0

Very good

7,900 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Austrian Airlines

7.6

Good

772 reviews

Delta

8.0

Very good

7,900 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8,618 reviews

Delta

8.0

Very good

7,900 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Brussels Airlines

7.4

Good

345 reviews

Delta

8.0

Very good

7,900 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What are the cheapest airlines flying from Prague to St. Louis round-trip?
According to our current data, Delta ($765), Lufthansa ($869), and Air Canada ($2,969) offers the cheapest pricing from Prague to St. Louis. You may be able to fly from Prague to St. Louis for 13% less than the average price by searching for these airlines.
Can I find deals for flights from Prague to St. Louis that include hotel bookings?
Yes. In addition to deals on Prague to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Prague to St. Louis?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Prague to St. Louis.
Can I find deals for business class flights from Prague to St. Louis?
Yes. Cheapflights offers flight deals from Prague to St. Louis 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 Prague to St. Louis?
Currently, August is the cheapest month in which you can book a flight from Prague to St. Louis (average of $311). Flying from Prague to St. Louis in March is currently the most expensive (average of $356). 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

Fenton

Maryland Heights

Fairview Heights

Collinsville

Wentzville

Eureka

St. Peters

Festus

Glencoe

Alton

Farmington

Chesterfield

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Prague to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$824	Average$827	FlexibilityNo cancel fee	On-timeN/A

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$612+ Cheap flights from Prague (PRG) to St. Louis (STL)

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 6/24. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Prague to St. Louis with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Prague to St. Louis

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Prague to St. Louis

Cheapest flights from Prague to St. LouisExplore the most affordable flight options available from Prague to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on aprile 4, 2025.

Explore the most affordable flight options available from Prague to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on aprile 4, 2025.

Cheapflights Fare Finder

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

Compare providers for flights from Prague to St. Louis

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 Prague to St. Louis in April.

Best time to book a flight from Prague to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Prague with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Prague to St. Louis

Rainfall in St. Louis by month

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

Temperature in St. Louis by month

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

Reviews of airlines servicing St. Louis

Related info for your journey

Find useful and relevant information for your journey from Prague to St. Louis. 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 Prague to St. Louis round-trip?

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

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

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

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

Traveling to a place near Prague?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Prague to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Prague to St. Louis

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Prague to St. Louis
Explore the most affordable flight options available from Prague to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on aprile 4, 2025.