$343 Find Cheap Flights from St. Louis to the Czech Republic

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 the Czech Republic departing on 1/10. 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 the Czech Republic

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% 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.

Flight Deals
Booking Insights
Flight Deals

Book Cheap St. Louis to the Czech Republic Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to the Czech Republic 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 the Czech Republic

Mon, Apr 20 - Mon, Apr 27
British Airways Logo
11:14 am - 5:00 pm
STL
-
PRG
22h 46m2 stops
British Airways Logo
8:55 pm - 7:30 pm
PRG
-
STL
29h 35m1 stop
$492British Airways
Sun, Jan 25 - Sun, Feb 1
Lufthansa Logo
6:40 pm - 4:05 pm
STL
-
PRG
14h 25m2 stops
Lufthansa Logo
7:25 am - 10:58 pm
PRG
-
STL
22h 33m2 stops
$494Lufthansa
Wed, Mar 18 - Sun, Mar 22
British Airways Logo
6:50 pm - 8:40 pm
STL
-
PRG
19h 50m2 stops
British Airways Logo
8:40 pm - 11:52 pm
PRG
-
STL
33h 12m2 stops
$495British Airways
Tue, Apr 21 - Tue, Apr 28
British Airways Logo
10:00 pm - 9:15 am
STL
-
PRG
28h 15m1 stop
British Airways Logo
10:20 am - 7:30 pm
PRG
-
STL
16h 10m1 stop
$496British Airways
Fri, Feb 6 - Tue, Feb 10
United Airlines Logo
9:57 am - 1:05 pm
STL
-
PRG
20h 08m2 stops
United Airlines Logo
7:25 am - 3:29 pm
PRG
-
STL
39h 04m2 stops
$505United Airlines
Sun, Jan 25 - Sun, Feb 1
Lufthansa Logo
3:50 pm - 2:15 pm
STL
-
PRG
15h 25m1 stop
Lufthansa Logo
10:30 am - 10:58 pm
PRG
-
STL
19h 28m2 stops
$507Lufthansa
Fri, Jan 16 - Sun, Jan 25
Multiple Airlines Logo
4:05 pm - 1:55 pm
STL
-
PRG
14h 50m2 stops
Multiple Airlines Logo
10:30 am - 10:58 pm
PRG
-
STL
19h 28m2 stops
$508Multiple Airlines
Mon, Apr 20 - Wed, Apr 29
Lufthansa Logo
6:35 pm - 9:20 pm
STL
-
PRG
43h 45m2 stops
Lufthansa Logo
6:10 am - 1:25 pm
PRG
-
STL
14h 15m1 stop
$510Lufthansa
Fri, Jan 30 - Fri, Feb 6
United Airlines Logo
3:50 pm - 2:05 pm
STL
-
PRG
15h 15m1 stop
United Airlines Logo
7:35 am - 3:29 pm
PRG
-
STL
38h 54m2 stops
$513United Airlines
Fri, Feb 6 - Tue, Feb 10
United Airlines Logo
9:57 am - 2:05 pm
STL
-
PRG
21h 08m2 stops
United Airlines Logo
7:25 am - 10:58 pm
PRG
-
STL
22h 33m2 stops
$521United Airlines
Booking Insights

KAYAK's insights & trends for St. Louis to the Czech Republic flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to the Czech Republic, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to the Czech Republic is March, when tickets cost $655 (return) on average. On the other hand, the most expensive months are May and June, when the average cost of round-trip tickets is $1,302 and $1,282 respectively.

What’s the cheapest day of the week to fly from St. Louis to Czech Republic?

The average price of all round-trip flights from St. Louis to the Czech Republic clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from St. Louis to Czech Republic, look for departures on Thursdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Czech Republic, Monday is the cheapest day to fly and Wednesday is the most expensive.

Good to know

Low seasonJanuary
Cheapest flight$343
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 48% increase in price.
Flight from St. Louis to Prague

FAQs - booking Czech Republic flights

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

    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 the Czech Republic.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from St. Louis to the Czech Republic 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 the Czech Republic?

    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 from St. Louis to the Czech Republic with an airline and back with another airline.

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

    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 from St. Louis to the Czech Republic up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to the Czech Republic?

    The cheapest time of day to fly to the Czech Republic is generally in the morning, when round-trip flights cost $1,013 on average. Morning departures are around 10% cheaper than evening flights, on average. The most expensive time of day to fly to the Czech Republic is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,216.

Reviews of the top 5 airlines serving from St. Louis to the Czech Republic

 
Need help choosing which airline to fly with from St. Louis to the Czech Republic? 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 8008 reviews
7.9Entertainment
7.3Food
8.5Crew
7.9Comfort
8.1Boarding
Airline reviews

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

10.0 ExcellentMargaret, Dec 2025
BOS - PIT
Read more Delta reviews

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

None of the airplane features were available during the flight.

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Getting to the flight was arduous and lengthy. The flight itself was good but the food option wasn’t a good selection. I need to do a Kosher option on my return. Flight crew were nice

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

United have really come back. Airport and boarding process is clear and good, app and information also very good

They charged a fee for 1st bag checked. Others in same party were free.

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

The movies offered were great. Staff were very pleasant and very efficient.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

Nothing specific. Cabin temperature was too high for some reason.

It was just fine. I managed to make all my connection too sbut had trouble in Munich with no wheel chair and trouble trying to get help from the airport people to get to the other terminal for my flight. Finally a wonderful lady Amelia, helped me to make my flight connection Timon with zero time to spare.

Over 40 years ago my AC return flight was canceled, during this last summer the same thing happened. AC denied everything Canadian like paying for accommodations and basic necessities. So why would I ever want to fly AC again? This last flight my wife took the return flight had problems and left late, so I guess they are getting better. However I have no faith in this airline so I drove to this last destination! I'll never fly AC again!!!

Great check in process in LA and good service The check in process as well as at the gate is way better in the US versus canada 🇨🇦

Super experience. Earlier than schedule departure and arrival. Baggage handling was very good

Allow me to book extra bag check in as free though I packed in 1 luggage but that was 7 LBS overweight so make another bag to free check in.

I would like to get my money back. I flight was 4 hours late on the way to detroit, And same on my way back to Brussels they cancelled my flight and give me an other ticket and i had to wait 5 hours.

All attendents were very efficient, pleasant and happy. Everything went smoothly. The seats could have been wider. There could have been more free food instead of just one small bar.

My seat was one of those that couldn't recline, but the problem was that it was abnormally upright, so the headrest actually made the seat concave, which was uncomfortable and hard on my lower back. I had to ball my jacket up and use it as lumbar support. goodness I had it with me.

Boarding was so so after zone 3 was called all other zones went in

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!

We didn't get the coffee with breakfast in the morning.. 30 mins lazer I asked flight attendant why don't we get coffee now at least.. after the breakfast..she said that captain announced possible turbulences fee minutes ago, which didn't ecplain why we didn't get it with the breakfast..breakfast was very poor btw..just little pastry which you can eat in 4 little bites. Turbulences fortunately didn't even happen.. but we didn't get that more than necessary coffee in the morning after the night flight with very poor sleep.. They just served breakfast 1 hour afzer we took off..at like 11 PM.. that doesn't make sense at all.. Also, flight attendants weren't very nice..they looked like they're not happy with their job.. :/

Lufthansa still has a good level of quality compared to US airlines, especially with respect to (1) food quality - actually tasty, (2) good French red wine - free, (3) good movie selection. Also my ticket price includes 1 free check-in luggage, while some other budget airlines sneak in an extra $150 for a checkin.

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.

Smooth trip no turbulence which is always a bonus for me lol! In cattle class so an element of being a bit squished (but not as bad as other shorter haul airlines) smaller plane than the one we flew out on and entertainment system wasn’t as modern but still definitely passed the time. Lovely crew x

I was attacked in the Miami airport and the staff did nothing. On my flight from London to Miami one of the flight attendants screamed at me and demanded I keep my seat in the upright position at all times during the fight so the man behind me was comfortable for the flight. I will never in my life use British airways again

Airlines have to stop assuming passengers bring entertainment. Provide it like you used to in business class and above!! N

I don't know about the others but the flight attendant that took care of us had the absolute wrong approach "how do we dare asking for water or anything else for that matter"

Flying on the Boeing 787 from Seattle to London was everything that I expected. Every thing was great.

Not my definition of first class. No leg room and barely any recline. The food was good. The crew was great. The comfort for the price I paid for London to Cairo was highway robbery. The Wi-Fi didn't work for me either.

Everything you need to know for your flight from St. Louis to the Czech Republic

Information on your arrival and departure airports