STL - PRG

$305 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 5/3. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$500
Typical prices: $818-$1,180
United Airlines
Wed 4/29Fri 5/8
STL - PRG • 2 stops
Cheapest one-way
$305
Typical prices: $661-$751
Multiple Airlines
Sun 5/3
STL - PRG • 2 stops
Top airlines
United Airlines
Cheapest • from $500 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Prague!
Flight Deals
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

Wed, Apr 29 - Fri, May 8
United Airlines Logo
6:35 pm - 9:20 pm
STL
-
PRG
19h 45m
2 stops
United Airlines Logo
6:00 am - 1:25 pm
PRG
-
STL
14h 25m
1 stop
$500United Airlines
Wed, Apr 29 - Fri, May 8
United Airlines Logo
6:35 pm - 9:20 pm
STL
-
PRG
19h 45m
2 stops
United Airlines Logo
6:00 am - 8:05 pm
PRG
-
STL
21h 05m
2 stops
$503United Airlines
Wed, Apr 29 - Fri, May 8
Multiple Airlines Logo
4:05 pm - 11:15 pm
STL
-
PRG
24h 10m
2 stops
Multiple Airlines Logo
6:00 am - 8:05 pm
PRG
-
STL
21h 05m
2 stops
$508Multiple Airlines
Wed, Apr 29 - Fri, May 8
Multiple Airlines Logo
12:11 pm - 6:45 pm
STL
-
PRG
23h 34m
2 stops
Multiple Airlines Logo
8:40 am - 7:30 pm
PRG
-
STL
17h 50m
2 stops
$511Multiple Airlines
Sat, Apr 11 - Wed, Apr 22
United Airlines Logo
4:05 pm - 5:55 pm
STL
-
PRG
42h 50m
2 stops
United Airlines Logo
6:10 am - 1:25 pm
PRG
-
STL
14h 15m
1 stop
$516United Airlines
Sat, Apr 11 - Wed, Apr 22
United Airlines Logo
4:05 pm - 5:55 pm
STL
-
PRG
42h 50m
2 stops
United Airlines Logo
2:35 pm - 3:24 pm
PRG
-
STL
31h 49m
2 stops
$524United Airlines
Wed, Apr 29 - Fri, May 8
United Airlines Logo
3:30 pm - 9:20 pm
STL
-
PRG
22h 50m
2 stops
United Airlines Logo
6:00 am - 1:25 pm
PRG
-
STL
14h 25m
1 stop
$531United Airlines
Sun, Apr 19 - Sun, Apr 26
American Airlines Logo
7:40 pm - 6:40 pm
STL
-
PRG
16h 00m
2 stops
American Airlines Logo
8:40 am - 7:30 pm
PRG
-
STL
17h 50m
2 stops
$553American Airlines
Sun, Apr 19 - Sun, Apr 26
Lufthansa Logo
3:30 pm - 10:55 am
STL
-
PRG
12h 25m
1 stop
Lufthansa Logo
6:10 am - 1:25 pm
PRG
-
STL
14h 15m
1 stop
$556Lufthansa
Sun, Apr 19 - Sun, Apr 26
Lufthansa Logo
3:30 pm - 5:55 pm
STL
-
PRG
19h 25m
1 stop
Lufthansa Logo
6:10 am - 1:25 pm
PRG
-
STL
14h 15m
1 stop
$557Lufthansa
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.

How much is a round-trip flight from St. Louis to Prague?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Prague departing in April.

Good to know

Low seasonApril
Cheapest flight$305
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly with an average 48% 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 $305 for a one-way ticket and $500 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 8120 reviews
7.2Food
7.8Entertainment
8.5Crew
8.1Boarding
7.9Comfort
Airline reviews

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

10.0 ExcellentZebrina, Jan 2026
LGA - CAE
Read more Delta reviews

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The flight was comfortable and uneventful, which is what I desire

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

My flight out of Baton Rouge to Atlanta was delayed by a half hour. This got us into Atlanta airport 30 minutes late. I ran through the airport to get to my connecting flight. As I approached the boarding gate, I saw the boarding door was still open and a passenger was being checked in. But when I got to the gate, the boarding agent told me they had already given away my seat and there were no empty seats on that flight. So I had to take a later flight. That has never happened to me before. Very frustrating.

Connection through Atlanta was difficult. Mechanical issue on plane caused a two hour delay. New gate was a mile away.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

The food was terrible this time. Otherwise pleasant, quiet, on-time.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

I wish there were outlets to charge my iPhone. The crew was great; we had a female pilot who was great with explaining what was happening and delays,

The flight crew where really good. Better then the crew from BNE to SFO

Missed it by a couple minutes and couldn’t find an alternative flight so had to spend the night in DC and after much shuffling from 1 airline to another managed to get a United to Frankfurt.

There were only 2 toilets and one of them did not work in business class. We are not allowed to cross classes so had to wait in line to use the toilets!! The entertainment touch display was finicky and did not work all the time.

We missed our flight. There was not enough time built into the layover to get through immigration, customs, bagclaim, bag rechecking, and the long trip to another terminal and gate. Kayak really screwed up. We took the bus up to Wisconsin and then were picked up in Brookfield by private car. It was lucky we didnt miss the last bus out.

I tried both on line and by calling the Customer Service line to arrange for a special meal as i have food intolerances. I was under the impression from your service representative that I was successful. I was not. I cannot eat spicy foods and get very ill if i eat bell peppers. I could not eat either menu choice and no special meal was actually ordered. ( your representative tried to order it for a flight that did not have meal service!!! - found this out later). Your wonderful cabin crew managed to put together a fruit, salad, roll and cheese tray for me so I had something to eat. WHY WOULD YOU SERVE SPICY FOOD, WITH NO MILDER OPTION,ON AN INTERNATIONAL FLIGHT???

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.

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

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

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

Information on your arrival and departure airports