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

According to our current data, British Airways ($827), United Airlines ($884), and Air Canada ($1,056) offers the cheapest pricing from St. Louis to Prague. British Airways is priced at 15% 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 Scandinavian Airlines. According to our data, you can fly for as low as $540. Users have also found prices from $647 and $668 on Lufthansa and British Airways, respectively.

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.

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: British Airways, Delta or KLM.

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

Leaving on a Wednesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 23% on the overall cost on flights from St. Louis to Prague.

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

Flights from St. Louis to Prague lean towards being more expensive in June. Prices are generally better when you fly from St. Louis to Prague in March, with the cheapest ticket starting at $644.

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.

$269+ Flights from St. Louis to Prague

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from St. Louis to Prague with Cheapflights

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.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from St. Louis to Prague

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$827 (oojo)
One-way from	$269 (Kiwi.com)
Popular in	June
Cheapest in	March
Average price	$662

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. 20% potential increase in price ($253 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease ($57 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 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 March 28, 2025.

Mon 10/274:15 pmSTL - PRG

2 stops16h 10mAir Canada

Mon 11/312:05 pmPRG - STL

2 stops34h 21mAir Canada

Deal found 3/27

$678

Sun 10/264:45 pmSTL - PRG

1 stop12h 35mMultiple Airlines

Mon 11/312:05 pmPRG - STL

2 stops34h 21mMultiple Airlines

Deal found 3/27

$691

Sun 10/263:15 pmSTL - PRG

2 stops18h 50mUnited Airlines

Mon 11/37:20 amPRG - STL

2 stops15h 06mUnited Airlines

Deal found 3/27

$706

Mon 10/276:27 pmSTL - PRG

2 stops22h 23mBritish Airways

Sun 11/25:55 amPRG - STL

2 stops21h 46mBritish Airways

Deal found 3/27

$707

Sun 10/264:45 pmSTL - PRG

1 stop12h 35mLufthansa

Sun 11/27:20 amPRG - STL

1 stop13h 35mLufthansa

Deal found 3/27

$711

Wed 10/154:39 pmSTL - PRG

2 stops17h 21mAmerican Airlines

Wed 10/228:10 amPRG - STL

2 stops17h 08mAmerican Airlines

Deal found 3/27

$729

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 March 28, 2025.

Tue 5/137:30 pmSTL - PRG

2 stops21h 05mBritish Airways

Wed 5/219:15 pmPRG - STL

2 stops26h 07mBritish Airways

Deal found 3/27

$827

Sun 5/111:30 pmSTL - PRG

2 stops21h 20mUnited Airlines

Sun 5/186:00 amPRG - STL

2 stops37h 36mUnited Airlines

Deal found 3/27

$884

Thu 5/151:30 pmSTL - PRG

2 stops14h 25mAir Canada

Wed 7/231:40 pmPRG - STL

2 stops33h 07mAir Canada

Deal found 3/26

$1,056

Sun 5/111:30 pmSTL - PRG

2 stops14h 25mMultiple Airlines

Tue 5/2711:40 amPRG - STL

2 stops15h 18mMultiple Airlines

Deal found 3/26

$1,084

Fri 5/23:30 pmSTL - PRG

1 stop12h 25mLufthansa

Fri 5/166:00 amPRG - STL

1 stop14h 30mLufthansa

Deal found 3/26

$1,152

Fri 5/26:50 amSTL - PRG

2 stops20h 30mDelta

Fri 5/1611:00 amPRG - STL

2 stops16h 39mDelta

Deal found 3/26

$1,154

Sun 5/116:11 pmSTL - PRG

2 stops38h 04mAsiana Airlines

Tue 7/224:55 pmPRG - STL

2 stops42h 59mAsiana Airlines

Deal found 3/26

$4,202

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 March 28, 2025.

Fri 4/114:57 pmSTL - PRG

2 stops57h 13mMultiple Airlines

Deal found 3/26

$269

Mon 5/54:05 pmSTL - PRG

2 stops34h 40mScandinavian Airlines

Deal found 3/27

$540

Fri 5/93:30 pmSTL - PRG

1 stop11h 10mLufthansa

Deal found 3/27

$647

Sat 5/171:45 pmSTL - PRG

2 stops23h 50mBritish Airways

Deal found 3/27

$668

Cheapflights Fare Finder

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

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Tue 5/13

1:30 pm-9:20 pm

2 stops24h 50m

Václav Havel Prague

Wed 5/21

6:00 am-7:58 pm

2 stops20h 58m

$804

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Tue 5/13

7:30 pm-11:35 pm

2 stops21h 05m

Václav Havel Prague

Wed 5/21

9:15 pm-4:22 pm

2 stops26h 07m

$827

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 5/21

7:30 am-10:55 am

2 stops20h 25m

Václav Havel Prague

Tue 6/10

6:00 am-7:58 pm

2 stops20h 58m

$874

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sun 5/11

1:30 pm-5:50 pm

2 stops21h 20m

Václav Havel Prague

Sun 5/18

6:00 am-12:36 pm

2 stops37h 36m

$884

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Wed 5/7

3:30 pm-1:40 pm

1 stop15h 10m

Václav Havel Prague

Wed 5/21

6:00 am-1:30 pm

1 stop14h 30m

$1,095

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Mon 5/5

4:05 pm-9:45 am

2 stops34h 40m

$540

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Fri 5/9

3:30 pm-9:40 am

1 stop11h 10m

$647

St. LouisPrague

STL - PRG

STLPRG

Lambert-St Louis

Sat 5/17

1:45 pm-8:35 pm

2 stops23h 50m

$668

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

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 March.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*1 star
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 $1,221). 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.

Rainfall in Prague 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

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

Asiana Airlines

8.2

Very good

440 reviews

Reviews

1 / 20

4.0

Okay

Ramón,Feb 2025

ICN - SGN

The same as my experience from NYC to Incheon, just 1 EVER LASTING LONG LINE. No group calling out anything, just telling everyone to line up.

Asiana Airlines

8.2

Very good

440 reviews

Asiana Airlines

8.2

Very good

440 reviews

Reviews

1 / 20

4.0

Okay

Ramón,Feb 2025

ICN - SGN

The same as my experience from NYC to Incheon, just 1 EVER LASTING LONG LINE. No group calling out anything, just telling everyone to line up.

Delta

8.0

Very good

7,897 reviews

Asiana Airlines

8.2

Very good

440 reviews

Reviews

1 / 20

4.0

Okay

Ramón,Feb 2025

ICN - SGN

The same as my experience from NYC to Incheon, just 1 EVER LASTING LONG LINE. No group calling out anything, just telling everyone to line up.

United Airlines

7.4

Good

8,603 reviews

Asiana Airlines

8.2

Very good

440 reviews

Reviews

1 / 20

4.0

Okay

Ramón,Feb 2025

ICN - SGN

The same as my experience from NYC to Incheon, just 1 EVER LASTING LONG LINE. No group calling out anything, just telling everyone to line up.

Scandinavian Airlines

7.3

Good

1,325 reviews

Asiana Airlines

8.2

Very good

440 reviews

Reviews

1 / 20

4.0

Okay

Ramón,Feb 2025

ICN - SGN

The same as my experience from NYC to Incheon, just 1 EVER LASTING LONG LINE. No group calling out anything, just telling everyone to line up.

Air Canada

7.0

Good

8,981 reviews

Asiana Airlines

8.2

Very good

440 reviews

Reviews

1 / 20

4.0

Okay

Ramón,Feb 2025

ICN - SGN

The same as my experience from NYC to Incheon, just 1 EVER LASTING LONG LINE. No group calling out anything, just telling everyone to line up.

Related info for your journey

What are the cheapest airlines flying from St. Louis to Prague round-trip?
According to our current data, British Airways ($827), United Airlines ($884), and Air Canada ($1,056) offers the cheapest pricing from St. Louis to Prague. British Airways is priced at 15% 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 Scandinavian Airlines. According to our data, you can fly for as low as $540. Users have also found prices from $647 and $668 on Lufthansa and British Airways, 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 $1,221). 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

Top 5 airlines flying from St. Louis to Prague

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest$615	Average$867	FlexibilityNo cancel fee	On-time70%
Delta	Cheapest$642	Average$983	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$686	Average$1,012	FlexibilityNo cancel fee	On-time69%
Lufthansa	Cheapest$693	Average$1,163	FlexibilityNo cancel fee	On-time76%
KLM	Cheapest$708	Average$1,016	FlexibilityNo cancel fee	On-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$269+ 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 4/11. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Prague with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from St. Louis to Prague

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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 March 28, 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 March 28, 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 March.

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?

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 March 28, 2025.

Rainfall in Prague by month

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

Temperature in Prague by month

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

Reviews of airlines servicing Prague

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?

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

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

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

Alternative routes for St. Louis to Prague

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

Top 5 airlines flying from St. Louis to Prague

100% Free

Book with Flexibility

Travel Smart

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 28, 2025.