How long is the flight from St. Louis to Prague?

Scandinavian Airlines and Delta can get you from St. Louis to Prague in just under 19h 07m. Your travel time can differ by up to 15h 39m. The distance between St. Louis and Prague is about 4783 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

According to our current data, British Airways ($582), Lufthansa ($683), and United Airlines ($723) offers the cheapest pricing from St. Louis to Prague. British Airways is priced at 38% lower than the current average price of a flight leaving 3 months from now.

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

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

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.

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).

What are the most popular airlines that fly from St. Louis to Prague?

Before booking your flight from St. Louis to Prague check out the most popular airlines for this route: Air Canada, British Airways or Delta.

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.

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.

$324+ Cheap Flights from St. Louis to Prague

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

Airfare is below average for this route at the moment. St. Louis to Prague flights typically cost between $721 and $851 in November. The cheapest round-trip price found within the last 3 days was $607 on Delta (Nov 25-Dec 5).

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

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Cheap flight deals from St. Louis to Prague

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$527 (lastminute.com)
One-way from	$324 (Kiwi.com)
Popular in	June
Cheapest in	March
Average price	$746

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. 24% potential increase in price ($303 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

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 September 25, 2025.

Fri 11/73:59 pmSTL - PRG

2 stops34h 46mScandinavian Airlines

Fri 11/149:05 pmPRG - STL

2 stops31h 53mScandinavian Airlines

Deal found 9/22

$527

Tue 11/259:33 amSTL - PRG

2 stops19h 07mDelta

Fri 12/56:00 amPRG - STL

2 stops21h 46mDelta

Deal found 9/25

$607

Tue 11/258:20 amSTL - PRG

2 stops22h 45mUnited Airlines

Fri 12/57:35 amPRG - STL

1 stop13h 20mUnited Airlines

Deal found 9/25

$609

Mon 11/174:05 pmSTL - PRG

2 stops14h 50mMultiple Airlines

Thu 11/2710:25 amPRG - STL

2 stops36h 04mMultiple Airlines

Deal found 9/24

$611

Wed 11/2610:45 amSTL - PRG

2 stops14h 40mDelta

Fri 12/56:00 amPRG - STL

2 stops21h 46mDelta

Deal found 9/25

$613

Thu 11/273:15 pmSTL - PRG

2 stops35h 30mScandinavian Airlines

Fri 12/510:25 amPRG - STL

2 stops17h 38mScandinavian Airlines

Deal found 9/25

$633

Sun 11/97:02 pmSTL - PRG

2 stops15h 03mDelta

Sun 11/166:00 amPRG - STL

2 stops22h 05mDelta

Deal found 9/25

$657

Thu 11/2711:20 amSTL - PRG

2 stops20h 20mUnited Airlines

Fri 12/57:35 amPRG - STL

1 stop13h 20mUnited Airlines

Deal found 9/25

$659

Sun 11/93:50 pmSTL - PRG

1 stop15h 25mUnited Airlines

Sun 11/167:25 amPRG - STL

2 stops21h 57mUnited Airlines

Deal found 9/25

$664

Mon 12/11:55 pmSTL - PRG

2 stops17h 25mScandinavian Airlines

Fri 12/510:25 amPRG - STL

2 stops17h 38mScandinavian Airlines

Deal found 9/25

$667

Wed 10/153:30 pmSTL - PRG

1 stop12h 25mLufthansa

Wed 10/2210:25 amPRG - STL

2 stops20h 32mLufthansa

Deal found 9/23

$695

Best flights from St. Louis to Prague
Discover carefully curated flight deals from St. Louis to Prague that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 25, 2025.

Fri 11/73:59 pmSTL - PRG

2 stops34h 46mScandinavian Airlines

Fri 11/149:05 pmPRG - STL

2 stops31h 53mScandinavian Airlines

Deal found 9/22

$527

Tue 11/259:33 amSTL - PRG

2 stops19h 07mDelta

Fri 12/56:00 amPRG - STL

2 stops21h 46mDelta

Deal found 9/25

$607

Fri 11/2811:05 amSTL - PRG

2 stops28h 20mUnited Airlines

Fri 12/57:35 amPRG - STL

1 stop13h 20mUnited Airlines

Deal found 9/25

$659

Wed 10/153:30 pmSTL - PRG

1 stop12h 25mLufthansa

Wed 10/2210:25 amPRG - STL

2 stops20h 32mLufthansa

Deal found 9/23

$695

Sat 11/14:34 pmSTL - PRG

2 stops14h 31mAmerican Airlines

Fri 12/56:00 amPRG - STL

2 stops19h 44mAmerican Airlines

Deal found 9/24

$698

Wed 11/2610:45 amSTL - PRG

2 stops14h 40mDelta

Fri 12/56:00 amPRG - STL

2 stops21h 46mDelta

Deal found 9/25

$613

Thu 11/273:15 pmSTL - PRG

2 stops35h 30mScandinavian Airlines

Fri 12/510:25 amPRG - STL

2 stops17h 38mScandinavian Airlines

Deal found 9/25

$633

Thu 11/2711:20 amSTL - PRG

2 stops20h 20mUnited Airlines

Fri 12/57:35 amPRG - STL

1 stop13h 20mUnited Airlines

Deal found 9/25

$659

Fri 11/282:36 pmSTL - PRG

2 stops19h 29mDelta

Fri 12/58:55 amPRG - STL

2 stops21h 46mDelta

Deal found 9/25

$657

Sun 11/93:50 pmSTL - PRG

1 stop15h 25mUnited Airlines

Sun 11/167:25 amPRG - STL

2 stops21h 57mUnited Airlines

Deal found 9/25

$664

Mon 12/11:55 pmSTL - PRG

2 stops17h 25mScandinavian Airlines

Fri 12/510:25 amPRG - STL

2 stops17h 38mScandinavian Airlines

Deal found 9/25

$667

Last-minute flights from St. Louis to Prague
Discover last-minute flight deals from St. Louis to Prague. Data last updated September 25, 2025 and is based on user searches.

Wed 10/89:20 amSTL - PRG

2 stops17h 20mUnited Airlines

Tue 10/146:00 amPRG - STL

2 stops20h 42mUnited Airlines

Deal found 9/24

$777

Wed 10/812:25 pmSTL - PRG

2 stops14h 15mUnited Airlines

Mon 10/132:30 pmPRG - STL

2 stops32h 14mUnited Airlines

Deal found 9/24

$796

Thu 10/912:25 pmSTL - PRG

2 stops20h 40mUnited Airlines

Tue 10/146:00 amPRG - STL

2 stops22h 37mUnited Airlines

Deal found 9/24

$783

Thu 10/912:25 pmSTL - PRG

2 stops20h 40mUnited Airlines

Mon 10/132:30 pmPRG - STL

2 stops30h 57mUnited Airlines

Deal found 9/24

$803

Wed 10/153:30 pmSTL - PRG

1 stop12h 25mLufthansa

Wed 10/2210:25 amPRG - STL

2 stops20h 32mLufthansa

Deal found 9/23

$695

Wed 10/151:30 pmSTL - PRG

2 stops19h 30mAir Canada

Wed 10/226:00 amPRG - STL

2 stops16h 18mAir Canada

Deal found 9/23

$700

Wed 10/151:30 pmSTL - PRG

2 stops19h 30mMultiple Airlines

Wed 10/2210:25 amPRG - STL

2 stops20h 32mMultiple Airlines

Deal found 9/24

$704

Wed 10/155:15 pmSTL - PRG

2 stops17h 25mDelta

Wed 10/222:30 pmPRG - STL

2 stops31h 13mDelta

Deal found 9/25

$718

Wed 10/153:30 pmSTL - PRG

2 stops14h 25mUnited Airlines

Mon 10/202:30 pmPRG - STL

2 stops30h 57mUnited Airlines

Deal found 9/23

$750

Wed 10/153:30 pmSTL - PRG

1 stop15h 10mLufthansa

Mon 10/206:00 amPRG - STL

2 stops16h 44mLufthansa

Deal found 9/23

$769

One-way flights from St. Louis to Prague
Search for one-way flight options from St. Louis to Prague. Find affordable one-way fares based on user searches. Data last updated September 25, 2025.

Sun 11/27:45 pmSTL - PRG

3 stops53h 55mMultiple Airlines

Deal found 9/24

$324

Wed 11/127:45 pmSTL - PRG

3 stops53h 55mMultiple Airlines

Deal found 9/24

$325

Sun 11/26:43 pmSTL - PRG

2 stops20h 42mLufthansa

Deal found 9/24

$456

Wed 11/123:38 pmSTL - PRG

2 stops18h 52mAmerican Airlines

Deal found 9/25

$465

Wed 11/1211:51 amSTL - PRG

2 stops18h 24mBritish Airways

Deal found 9/24

$466

Wed 11/121:55 pmSTL - PRG

2 stops14h 45mAir France

Deal found 9/24

$472

Sun 11/211:36 amSTL - PRG

2 stops13h 49mKLM

Deal found 9/25

$478

Wed 11/123:50 pmSTL - PRG

1 stop10h 55mLufthansa

Deal found 9/25

$485

Fly from

Fly to

Route

Depart

Return

Price

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Fri 11/7

3:59 pm-9:45 am

2 stops34h 46m

Václav Havel Prague

Fri 11/14

9:05 pm-9:58 pm

2 stops31h 53m

$527

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Tue 11/25

9:33 am-11:40 am

2 stops19h 07m

Václav Havel Prague

Fri 12/5

6:00 am-8:46 pm

2 stops21h 46m

$607

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 11/26

10:45 am-8:25 am

2 stops14h 40m

Václav Havel Prague

Fri 12/5

6:00 am-8:46 pm

2 stops21h 46m

$613

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Thu 11/27

3:15 pm-9:45 am

2 stops35h 30m

Václav Havel Prague

Fri 12/5

10:25 am-9:03 pm

2 stops17h 38m

$633

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Fri 11/28

2:36 pm-5:05 pm

2 stops19h 29m

Václav Havel Prague

Fri 12/5

8:55 am-11:41 pm

2 stops21h 46m

$657

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Fri 11/28

11:05 am-10:25 pm

2 stops28h 20m

Václav Havel Prague

Fri 12/5

7:35 am-1:55 pm

1 stop13h 20m

$659

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Thu 11/27

11:20 am-2:40 pm

2 stops20h 20m

Václav Havel Prague

Fri 12/5

7:35 am-1:55 pm

1 stop13h 20m

$659

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 11/9

3:50 pm-2:15 pm

1 stop15h 25m

Václav Havel Prague

Sun 11/16

7:25 am-10:22 pm

2 stops21h 57m

$664

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Mon 12/1

1:55 pm-2:20 pm

2 stops17h 25m

Václav Havel Prague

Fri 12/5

10:25 am-9:03 pm

2 stops17h 38m

$667

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 10/15

3:30 pm-10:55 am

1 stop12h 25m

Václav Havel Prague

Wed 10/22

10:25 am-11:57 pm

2 stops20h 32m

$695

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/24

Showing 1-10 of 20 results

Compare providers for flights from St. Louis to Prague

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 September.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 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

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 $1,118). 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?

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.

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

Reviews of airlines servicing Prague

Read reviews from past customers who have flown Delta, KLM, and United Airlines 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

8.0

Very good

7,973 reviews

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

7,973 reviews

Delta

8.0

Very good

7,973 reviews

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!

KLM

7.8

Good

1,390 reviews

Delta

8.0

Very good

7,973 reviews

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

8,926 reviews

Delta

8.0

Very good

7,973 reviews

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!

Air Canada

7.1

Good

10,000 reviews

Delta

8.0

Very good

7,973 reviews

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!

Lufthansa

6.8

Okay

7,428 reviews

Delta

8.0

Very good

7,973 reviews

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

How long is the flight from St. Louis to Prague?
Scandinavian Airlines and Delta can get you from St. Louis to Prague in just under 19h 07m. Your travel time can differ by up to 15h 39m. The distance between St. Louis and Prague is about 4783 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from St. Louis to Prague round-trip?
According to our current data, British Airways ($582), Lufthansa ($683), and United Airlines ($723) offers the cheapest pricing from St. Louis to Prague. British Airways is priced at 38% 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.
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 $1,118). 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

Alternative routes for St. Louis to Prague

Kansas City to Prague flights

Complete your trip

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Other flights to Prague

Top 6 airlines flying from St. Louis to Prague

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest$582	Average$793	FlexibilityNo cancel fee	On-time70%
Lufthansa	Cheapest$683	Average$1,174	FlexibilityNo cancel fee	On-time76%
United Airlines	Cheapest$723	Average$988	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$728	Average$1,245	FlexibilityNo cancel fee	On-timeN/A
KLM	Cheapest$731	Average$1,303	FlexibilityNo cancel fee	On-time75%
Air Canada	Cheapest$745	Average$1,087	FlexibilityNo cancel fee	On-time67%

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$324+ 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.

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Cheap flight deals from St. Louis to Prague

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Find flight deals from St. Louis to Prague

Cheapest flights from St. Louis to PragueExplore 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 September 25, 2025.

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 September 25, 2025.

Cheapflights Fare Finder

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

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 September.

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.

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?

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

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

Reviews of airlines servicing Prague

Read reviews from past customers who have flown Delta, KLM, and United Airlines 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.

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?

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

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

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

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

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

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.

Top 6 airlines flying from St. Louis to Prague

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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 September 25, 2025.