$780 Find Cheap Flights from Southeast Europe to St. Louis

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight to St. Louis departing on 5/1. 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

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Cheap Flights from Southeast Europe to St. Louis

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

ج, مايو 1 - ج, مايو 8
United Airlines Logo
6:05 am - 1:25 pm
OTP
-
STL
15h 20m
1 stop
United Airlines Logo
8:45 am - 6:35 pm
STL
-
OTP
25h 50m
2 stops
$780United Airlines
ج, مايو 1 - ج, مايو 8
United Airlines Logo
6:05 am - 8:25 pm
OTP
-
STL
22h 20m
2 stops
United Airlines Logo
7:45 am - 6:35 pm
STL
-
OTP
26h 50m
2 stops
$784United Airlines
س, يونيو 6 - ر, أغسطس 5
United Airlines Logo
6:05 am - 12:06 pm
OTP
-
STL
38h 01m
2 stops
United Airlines Logo
3:30 pm - 12:50 pm
STL
-
OTP
13h 20m
1 stop
$786United Airlines
ن, أبريل 27 - ن, مايو 4
Lufthansa Logo
6:05 am - 3:48 pm
OTP
-
STL
17h 43m
2 stops
Lufthansa Logo
1:24 pm - 12:00 pm
STL
-
OTP
14h 36m
2 stops
$789Lufthansa
س, يونيو 6 - ر, أغسطس 5
Air Canada Logo
1:55 pm - 12:06 pm
OTP
-
STL
30h 11m
2 stops
Air Canada Logo
12:10 pm - 12:50 pm
STL
-
OTP
16h 40m
2 stops
$797Air Canada
ح, أبريل 12 - ح, أبريل 19
Lufthansa Logo
5:55 am - 3:48 pm
ZAG
-
STL
16h 53m
2 stops
Lufthansa Logo
3:30 pm - 2:25 pm
STL
-
ZAG
15h 55m
1 stop
$898Lufthansa
ث, أبريل 14 - ث, أبريل 21
Multiple Airlines Logo
4:25 am - 11:57 pm
SKP
-
STL
26h 32m
2 stops
Multiple Airlines Logo
1:10 pm - 2:30 pm
STL
-
SKP
18h 20m
2 stops
$987Multiple Airlines
ن, أبريل 27 - ن, مايو 4
Multiple Airlines Logo
3:40 pm - 7:30 pm
OTP
-
STL
35h 50m
1 stop
Multiple Airlines Logo
6:55 pm - 1:20 am
STL
-
OTP
22h 25m
2 stops
$1,115Multiple Airlines
س, يونيو 6 - ر, أغسطس 5
British Airways Logo
8:00 pm - 7:30 pm
OTP
-
STL
31h 30m
1 stop
British Airways Logo
9:35 pm - 12:20 am
STL
-
OTP
18h 45m
1 stop
$1,117British Airways
ح, أبريل 12 - ح, أبريل 19
Air Canada Logo
8:25 am - 9:13 pm
ZAG
-
STL
19h 48m
3 stops
Air Canada Logo
4:05 pm - 2:25 pm
STL
-
ZAG
15h 20m
2 stops
$1,340Air Canada
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$780
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly with an average 6% increase in price.
Flight from Bucharest to St. Louis

FAQs for booking flights from Southeast Europe to St. Louis

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

    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 Southeast Europe to St. Louis.

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

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

    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 St. Louis with an airline and back to Southeast Europe with another airline.

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

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

Reviews of the top airlines flying from Southeast Europe to St. Louis

 
Need help choosing which airline to fly with from Southeast Europe to St. Louis? 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.
7.4
United AirlinesOverall score based on 9435 reviews
7.7Boarding
7.1Entertainment
7.3Comfort
6.6Food
8.1Crew
Airline reviews

OK, we were delayed and had to de plane and reboard.

6.0 GoodJamie, Mar 2026
LAX - EWR
Read more United Airlines reviews

OK, we were delayed and had to de plane and reboard.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

Hopped on time for the flight only to get deplaned and delayed another 2.5 hours.

Terrible experience! delay 2 time and say i dont have ticket

Both my flight where delayed Had 25min to make it to my transfer flight

Would've been great if Lufthansa union cockpit pilots didn't strike for 2 days and caused a chaos to my returning plans to USA, and then after rebooking a flight 2 days later tge plane departed 35 min later. So I did not have a good experience.

Everything was on time and service on the flight was great!

The boarding in Buenos Aires (at the on ramp) was not great. They had to check every carry on. Not a United problem but was a Buenos Aires problem.

Staff and aircraft were good. However, weather in Houston lee to a ground stop. We were looking at circling behind three other planes until the stop was lifted. Pilot said we didn’t have enough fuel for that. So we flew on to New Orleans as the closest port with immigration and customs staff. Landed there and sat in the plane for two hours plus while staff was sorted. Turned away by ICE. Waited for pilots to be switched out, but after they were approved by ICE. Then had to wait to get a runway because so many planes were ahead of us. Finally took off and flew back to Houston. We all missed our connecting flights because it took too long. Hotel voucher from United was only a link to booking site. Total BS. Finally got a flight out the next day after a night without sleep because all the Houston hotels were booked by rodeo and spring break crowds.

How about changing the personal out to more friendly human beings? This team was pretty arrogant. No fun!!

Everything could have been better. What needed to be wrong with United went wrong

Excellent service. The crew goes above their way to make the customer comfortable.

It was good. The seats in economy weren’t bad

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

Excellent service; they helped me reschedule so I can fly in an earlier flight

Wonderful staff. The boarding process can be improved a little better by adequate prior communication but all in all they did fine. However the boarding gate was quite unfreindly to elderly and who needs help with sevral stairs.

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

I had a good comfortable seat. There was nearly an hour delay. There was an accident with the champagne, but I was well compensated. These things happen sometimes.

Very good. Comfortable and I felt well taken care of from start to finish

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Wentzville
Farmington
Eureka
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Shrewsbury
Glencoe

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

Information on the airport you'll fly into in St. Louis