STL - PRG

$369 Find Cheap Flights from St. Louis to Prague

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Prague departing on 4/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Prague

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Prague, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Prague, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$445
Typical prices: $680-$714
British Airways
Tue 2/3Tue 2/10
STL - PRG • 2 stops
Cheapest one-way
$369
Typical prices: $528-$865
British Airways
Mon 4/20
STL - PRG • 2 stops
Top airlines
British Airways
Cheapest • from $445 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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Booking Insights
Flight Deals

Cheap Flights from St. Louis to Prague (STL-PRG)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Prague that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Prague

Tue, Feb 3 - Tue, Feb 10
British Airways Logo
12:11 pm - 12:55 pm
STL
-
PRG
17h 44m2 stops
British Airways Logo
10:55 am - 10:59 pm
PRG
-
STL
19h 04m2 stops
$445British Airways
Wed, Apr 22 - Mon, Apr 27
British Airways Logo
10:00 pm - 9:20 am
STL
-
PRG
28h 20m1 stop
British Airways Logo
8:55 pm - 7:30 pm
PRG
-
STL
29h 35m1 stop
$448British Airways
Sun, Mar 1 - Tue, Mar 17
British Airways Logo
6:38 pm - 8:45 pm
STL
-
PRG
19h 07m2 stops
British Airways Logo
6:45 am - 5:58 pm
PRG
-
STL
17h 13m2 stops
$449British Airways
Wed, Apr 29 - Fri, May 8
American Airlines Logo
6:11 pm - 5:00 pm
STL
-
PRG
15h 49m2 stops
American Airlines Logo
8:40 am - 7:30 pm
PRG
-
STL
17h 50m2 stops
$450American Airlines
Sun, Apr 19 - Mon, Apr 27
British Airways Logo
12:11 pm - 1:35 pm
STL
-
PRG
18h 24m2 stops
British Airways Logo
8:55 pm - 7:30 pm
PRG
-
STL
29h 35m1 stop
$452British Airways
Sun, Mar 1 - Tue, Mar 17
Multiple Airlines Logo
9:35 am - 6:50 pm
STL
-
PRG
26h 15m2 stops
Multiple Airlines Logo
7:35 pm - 10:32 am
PRG
-
STL
44h 57m2 stops
$453Multiple Airlines
Wed, Mar 18 - Wed, Apr 8
Multiple Airlines Logo
5:15 am - 6:50 pm
STL
-
PRG
31h 35m2 stops
Multiple Airlines Logo
8:40 am - 11:48 pm
PRG
-
STL
22h 08m2 stops
$462Multiple Airlines
Thu, Feb 12 - Mon, Feb 23
Multiple Airlines Logo
5:12 am - 6:50 pm
STL
-
PRG
30h 38m2 stops
Multiple Airlines Logo
7:35 pm - 7:29 pm
PRG
-
STL
30h 54m2 stops
$487Multiple Airlines
Sun, Mar 1 - Tue, Mar 17
Multiple Airlines Logo
3:50 pm - 6:15 pm
STL
-
PRG
19h 25m1 stop
Multiple Airlines Logo
7:25 am - 3:29 pm
PRG
-
STL
38h 04m2 stops
$488Multiple Airlines
Sun, Apr 19 - Sat, Apr 25
British Airways Logo
12:11 pm - 1:35 pm
STL
-
PRG
18h 24m2 stops
British Airways Logo
5:45 pm - 7:30 pm
PRG
-
STL
32h 45m1 stop
$492British Airways
Booking Insights

KAYAK's insights & trends for St. Louis to Prague flights

Get data-powered insights and trends into flights from St. Louis to Prague to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from St. Louis to Prague?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from St. Louis to Prague were found on British Airways ($445) and American Airlines ($450).

Which airlines fly non-stop between St. Louis and Prague?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from St. Louis to Prague.

There are 4 airlines that fly nonstop from St. Louis to Prague. They are: British Airways, Delta, Lufthansa and United Airlines. The cheapest price of all airlines flying this route was found with United Airlines at $504 for a round-trip flight. On average, the best prices for this route can be found at British Airways.

Good to know

Low seasonFebruary
Cheapest flight$369
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 44% increase in price.
Flight from St. Louis to Prague

When to book flights from St. Louis to Prague

Are your dates flexible? Find out the best times to travel from St. Louis to Prague based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Prague

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

    In the last 3 days, the lowest price for a flight from St. Louis to Prague was $369 for a one-way ticket and $445 for a round-trip.

  • Do I need a passport to fly between St. Louis and Prague?

    Yes, you'll most likely have to show a valid passport before boarding the plane in St. Louis and on arrival in Prague.

  • Which airports will I be using when flying from St. Louis to Prague?

    St. Louis and Prague are both served by 1 main airport. You will leave St. Louis from Lambert-St Louis and will be arriving at Václav Havel Prague.

  • Which aircraft models fly most regularly from St. Louis to Prague?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from St. Louis to Prague?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between St. Louis and Prague, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from St. Louis to Prague, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Prague are Delta and United Airlines. With an average price for the route of $1,303 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $800 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from St. Louis to Prague?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Prague.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Prague?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Prague from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Prague?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Prague with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and PRG can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Prague?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Prague from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from St. Louis to Prague

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Prague. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Prague? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8022 reviews
8.5Crew
7.9Comfort
8.1Boarding
7.8Entertainment
7.2Food
Airline reviews

Flight was late from Newark to Atlanta, I asked flight attendant to please let my family of 3 out first when we landed to Atlanta because we were late for our connecting flight to Quito. She didn't and we were late for 5 minutes we couldn't board the plane and spend hours trying to get another flight with customer service for the next day.

2.0 MediocreAnonymous, Jan 2026
EWR - ATL
Read more Delta reviews

Flight was late from Newark to Atlanta, I asked flight attendant to please let my family of 3 out first when we landed to Atlanta because we were late for our connecting flight to Quito. She didn't and we were late for 5 minutes we couldn't board the plane and spend hours trying to get another flight with customer service for the next day.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Late delayed flight delays boarding and delays leaving and delays on arrival too. Cramped plane no room no food.

DTW line is too long. The flights from DTW to BWI are always delayed for unknown reasons.

Delta canceled our flight and we had to scramble to find another airline to get home. Phoenix is not a delta hub so they didn’t have another plane. It would have been a red eye though Salt Lake City. Getting in at 5am. No bueno.

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

This flight was a first class choice and left much to be desired. Seat backs on seats were falling apart and torn. Seats actually didn't come to a "full & upright position". Pull out table was sprung. Not any significant leg room. All in all we were on an obviously older plane and felt overcharged for what we received as first class.

A 12 hour flight during the day with one real meal service - are you kidding? Also the breakfast was one of the worst and not what was listed

Flight was delayed several times. At one point, they "pulled back" 15 minutes from the delayed boarding and sent a text saying we would board sooner than previously advised. The flight then was delayed again. And when we boarded, there was an unspecified technical issue which had us waiting in the plane for about an hour.

Delta is a good airline. I've never had an issue with Delta. I'll continue to fly with them until they show me that I shouldn't.

It was great with United overall except for two things. 1) It was a 5-hour flight and we were with kids, so we were asking for extra snacks. They were extremely reticent to dole them out even though there wasn't any meal and the kids were starting to hit their limit towards the end. 2) Baggage didn't arrive until 80 minutes after we landed.

They lost my luggage, so, not happy. The crew was nice but my suitcases never made it, still trying to find out what happened!

The staff was hospitable and professional. The seat had a bit of wear. The winner shade was stuck 1/4 open. I received the best of both worlds. The morning sun was able to come in and blind the screen i was trying to use while at the same time it was too low to look out and enjoy the view. Rather embarrassing for a 1st class ticket.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

I’m so sorry, I can’t remember her name, I believe it was Dimpti. She was stellar, also a mature Asian flight attendant, lots of flowers in her hair, just as amazing! But literally the crew was AWESOME . Only downside is there weren’t any charging outlets. Maybe I needed to ask a flight attendant , but it would’ve been nice to have one easily accessible.

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

Aircraft was noisy, old and never dimmed the lights on a night flight even on business class! I flew 17 times on United and probably another 40 on other airlines United USA /Europe flights were the worst to include luggage delayed once going to europe and once coming back

Check how old the airframe is, some older ones have inoperable seat back entertainment or power.

Crew was professional and great, flight was clean. However food was pathetic. I ordered a Hindu meal assuming no meat but they served chicken. Need to be very specific- Hindu meal should be categorize as Vegetarian - no meat or egg. Or it should be specific that we are serving meat.

Late flight Delays Poor service Poor staff Worst airline ever

Ground staff and cabin crew were excellent. Flight was perfectly on time. Zero issues.

Even after a delay, getting off the ground, thanks for keeping me safe, the airline made certain that my connecting flight was rebooked to get me to my final destination. It was actually rebooked twice, and my luggage still managed to meet me. The airline gave me a credit for food and beverage to be used at the airport vendors, regretfully, the credit did not transfer to my final boarding pass. Oh, well…

Trip was smooth, good drew, average meal, almost cold coffee. Excellent landing. Did not enjoy going down the stairs, walking to the gate, walking up the stairs, going a long walk to the exchange gate, and going down the stairs again to be bussed all the way where we originally landed to take our next flight! Over all an average experience. Thank you.

I booked extra leg room, due to seat neighbor i now consider extra shoulder and arm room as well. Seems like the seats shrink in width now The crew was very friendly and professional ( 100%). Food was good not great, breakfast was bad, a dry slice of bread would have been better. Facilities clean.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

love the crews and my only problem was the delay at Frankfurt was very bad. I have travelled with Lufthansa for over 30 years now and this was cost me some planned business appointment

The flight delay made the connection a bit tight but that's outside the flight crew's control.

We just made it to our connecting flight. A long, long speed walk!

Getting the boarding passes between the BA and AA apps was very clunky.

The airline was not clear about a new departure time so we got to the airport early anyway. The flight left early which was great because of weather. The check in process was very easy and staff were friendly and helpful. The crew was great and our flight was very good.

Awful it always is unfortunately is the only way to fly direct to london

I travelled in business class and was disappointed by lack of service, curt and borderline rude time of the crew and to top it off, all of my luggage was delayed. It was like pulling teeth to even report the missing luggage and recover it the next day from the airport.

Plane was extremely delayed, but not all of it was BA fault (some was). Worst part was lack of room - this had as much space as an Allegiant flight. I thought transatlantic usually gave you an extra inch or two, but not this one. Entertainment system sporadically worked and didn’t have great options. Overhead bins are old and tiny, not as good as aunties new planes.

Boarding was poor. All groups called immediately one after the other resulting in a long queue in the jetty/jet bridge. Seats were very hard and and did not recline on a 4.5 hour flight. No food was available. Plane was cold. There was no entertainment.

The cramped seats are cruel and unusual punishment and may violate the Geneva code.

Check in was was and the agent was very friendly and helpful The lounge was nice...boarding was straight from the lounge Everything worked at our seats, and video entertainment was good ..food was mediocre

The flight was excellent in World Travellor plus. Well worth the extra money. Boarding at Phoenix was the usual poorly organized event. Very stressful.

Although business class, the seating was really cramped. The food was so so.

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

Information on your arrival and departure airports