$311 Find Cheap Flights from St. Louis to Southeast Europe - Compare and Save

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 Southeast Europe departing on 10/2. 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.
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Cheap Flights from St. Louis to Southeast Europe

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Athens
Athens1 stop$759
Tirana
Tirana2 stops$759
Belgrade
Belgrade2 stops$779
Sofia
Sofia2 stops$779
Split
Split2 stops$933
Dubrovnik
Dubrovnik2 stops$870
Zagreb
Zagreb2 stops$921
Thera
Thera2 stops$913
Sarajevo
Sarajevo2 stops$973
Thessaloniki
Thessaloniki2 stops$1,082
Skopje
Skopje2 stops$919
Heraklion
Heraklion2 stops$806
Pristina
Pristina2 stops$1,132
Mykonos
Mykonos2 stops$1,116
Cluj Napoca
Cluj Napoca2 stops$780
Chania
Chania2 stops$1,226
Athens
Athens1 stop$759
Tirana
Tirana2 stops$759
Belgrade
Belgrade2 stops$779
Sofia
Sofia2 stops$779
Split
Split2 stops$933
Dubrovnik
Dubrovnik2 stops$870
Zagreb
Zagreb2 stops$921
Thera
Thera2 stops$913
Sarajevo
Sarajevo2 stops$973
Thessaloniki
Thessaloniki2 stops$1,082
Skopje
Skopje2 stops$919
Heraklion
Heraklion2 stops$806
Pristina
Pristina2 stops$1,132
Mykonos
Mykonos2 stops$1,116
Cluj Napoca
Cluj Napoca2 stops$780
Chania
Chania2 stops$1,226

Book Cheap St. Louis to Southeast Europe 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 Southeast Europe 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 Southeast Europe

Mon, Nov 9 - Wed, Nov 18
Multiple Airlines Logo
6:00 am - 10:05 am
STL
-
ATH
20h 05m
1 stop
Multiple Airlines Logo
1:00 pm - 2:30 pm
ATH
-
STL
33h 30m
2 stops
$759Multiple Airlines
Tue, Jan 26 - Fri, Jan 29
Multiple Airlines Logo
4:05 pm - 4:50 pm
STL
-
ATH
16h 45m
2 stops
Multiple Airlines Logo
6:45 am - 1:45 pm
ATH
-
STL
15h 00m
1 stop
$761Multiple Airlines
Sat, Nov 7 - Wed, Nov 11
Air Canada Logo
5:34 pm - 11:00 am
STL
-
ATH
33h 26m
2 stops
Air Canada Logo
1:00 pm - 12:10 pm
ATH
-
STL
31h 10m
2 stops
$762Air Canada
Sat, Nov 7 - Wed, Nov 11
Air Canada Logo
5:34 pm - 11:00 am
STL
-
ATH
33h 26m
2 stops
Air Canada Logo
1:00 pm - 12:10 pm
ATH
-
STL
31h 10m
2 stops
$763Air Canada
Tue, Nov 10 - Sun, Nov 15
Lufthansa Logo
6:50 pm - 5:20 pm
STL
-
BEG
15h 30m
2 stops
Lufthansa Logo
6:15 am - 1:45 pm
BEG
-
STL
14h 30m
1 stop
$779Lufthansa
Mon, Nov 9 - Wed, Nov 18
United Airlines Logo
9:44 am - 10:05 am
STL
-
ATH
16h 21m
1 stop
United Airlines Logo
12:25 pm - 9:52 pm
ATH
-
STL
17h 27m
1 stop
$779United Airlines
Mon, Jan 25 - Thu, Jan 28
United Airlines Logo
3:15 pm - 10:55 pm
STL
-
SOF
23h 40m
2 stops
United Airlines Logo
6:25 am - 7:29 pm
SOF
-
STL
21h 04m
2 stops
$779United Airlines
Tue, Nov 10 - Sun, Nov 15
Lufthansa Logo
6:50 pm - 5:20 pm
STL
-
BEG
15h 30m
2 stops
Lufthansa Logo
6:15 am - 9:40 pm
BEG
-
STL
22h 25m
2 stops
$786Lufthansa
Tue, Dec 1 - Tue, Dec 15
Delta Logo
6:40 am - 9:35 am
STL
-
ATH
18h 55m
2 stops
Delta Logo
6:10 am - 8:51 pm
ATH
-
STL
22h 41m
2 stops
$788Delta
Fri, Nov 27 - Tue, Dec 22
Delta Logo
10:14 am - 1:40 pm
STL
-
ATH
19h 26m
2 stops
Delta Logo
6:10 am - 8:37 pm
ATH
-
STL
22h 27m
2 stops
$837Delta
Booking Insights

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

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

Can I save money by flying with a layover from St. Louis to Southeast Europe?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $454, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Southeast Europe, 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 Southeast Europe is January, when tickets cost $691 (return) on average. On the other hand, the most expensive months are May and June, when the average cost of round-trip tickets is $1,242 and $1,226 respectively.

How far in advance should I book a flight from St. Louis to Southeast Europe?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from St. Louis to Southeast Europe, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from St. Louis to Southeast Europe, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 1 week before departure.

Good to know

Low season

February

Cheapest flight

$311
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 19% increase in price.
Flight from St. Louis to Athens

FAQs - booking Southeast Europe flights

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

    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 Southeast Europe.

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

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

    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 Southeast Europe 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 Southeast Europe?

    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 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 5 airlines serving from St. Louis to Southeast Europe

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Southeast Europe. 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 Southeast Europe? 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.
7.8
DeltaOverall score based on 8483 reviews
7.8Comfort
8.1Boarding
8.5Crew
7.2Food
7.8Entertainment
Airline reviews

Your survey needs a N/A option. I didn’t use the entertainment or eat food.

10.0 ExcellentJon, Jul 2026
MCI - SLC
Read more Delta reviews

Your survey needs a N/A option. I didn’t use the entertainment or eat food.

Flight was delayed multiple time and for more than 1 hr. My onward flight from BOS to MCI was also delayed. These delays have caused me so much inconvenience and Delta does nothing to ensure flights take off on time. No one knew why the inbound flight was delayed and what was the issue.

Our flight was delayed by over 4 hours due to a maintenance issue. They announced a new plane was on the way. We were given a $12 food voucher ( airport food is quite expensive You can’t even by a water and a small snack for 12:00. 4 hours later we boarded and landed in Atlanta at 10:20 ish pm. Of course we missed our connection and we were given a hotel voucher and another food voucher ! We didn’t make it home until 11:00 the next day ! Unacceptable

From checking to boarding, it was a seamless experience. The service agents were so helpful. The flight crew was so pleasant.

Delta has too many delays now days. It is 1:06 am now. I was supposed to land in Norfolk at 10:30 pm. I got re-booked through Detroit and I’m still in Detroit. I hope to be landed in Norfolk by 3am. I’ve been in airports for 12 hours as of right now. There is a weather delay now but most delays lately have been maintenance.

Great flight with Delta! Boarding was quick and easy, the amenities were solid, and the plane was in great shape. The flight attendants had a fun, lively energy while staying professional. All in all, a smooth trip — even managed to catch up on some rest. Thanks, Delta!

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

They delayed our flight because of bad weather in NY which was completely understandable. Then they cancelled our flight and a later flight that evening. The earliest we could fly was the next morning. We ended up buying last minute tickets on another airline and made it home slightly delayed but safely that evening. Delta kept saying it was weather related but if that was the case how did we make it back on another airline? The weather in NY was cloudy but not bad.

The plane smelled like a sewer. Multiple passengers complained. It’s a safety and quality issue to clean these planes.

We were delayed 2 hours leaving STL. I had 20 mins from when we landed in SLC terminal A to make it to SLC terminal B. I had to actually run! thankfully I made my flight but 3/4 legs were delayed to some capacity.

I almost missed my connection in Chicago due to having to wait on a gate to be open I am assuming. Having to run from E terminal to C terminal and I barely made it there before they closed the door. This may not be the actual airline's fault it's crazy how there is so little time between flight especially when they are placed so far apart in the airport.

Our flight was great with an unexpected upgrade. However, four days into our travel we are still without a piece of luggage. The bag tracker has not been accurate, the airline is not communicating with me or the luggage delivery service and no one is willing to take responsibility or guarantee any kind of support or reimbursement. Unfortunately, we do not have the option to easily shop to replace items as we are currently on a cruise. I have been very disappointed by United Airlines response.

Fine not above and beyond as I had a connection that was delayed due to maintenance

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.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

Onboarding - it would be great to see on the screen what group they were boarding. It was very confusing on who was boarding (even though they called it out) they were not clear and the space to board was strange.

Older plane. Food was really bad, almost not worth the effort. Huge difference with European based airlines.

The best thing about the flight was the cabin crews in the business class. The young Asian lady was just fantastic!

The first flight was delayed and we almost lost the second flight . Was a scary moment

Good but I don’t received my bags yet is been 5days still no update

Flight cancelled. Major disruption to our travel. Do not use Air Canada from KC. To few flights.

Friendlier staff who are nice to the elderly who need assistance

Service was great. Flight was delayed an hour which made our connection very tight and stressful. But we fortunately made it.

There was a mistake with the first name we only discovered at security. Air canada was unable to correct it to match then passport since it was booked through an agency. The agency could not correct it either since they need at least two hours to do that. We could not fly and lost a bunch of money. Learned my lesson about kayak.

Fresh fuit or veg snacks would be so great, but there are two good restaurants in Denver airport. Try Etais UDIS or Freshens DIA for nutritious delicious pita sandwiches/ donairs and crepes in Freshens.

I appreciate the fact that the flight took off and landed on time What I didn’t like they never offer a snack eg nuts/cookies/chips

Air Canada seems to be understaffed which caused delays at every point of the flight—delays at departure, delays in the air (circling), delay after landing, delays at the gate before disembarking. Horrible experience. And my son, who departed Toronto today, experienced delays because the passport scanning system was down and was told that he would not be able to board his flight. Toronto airport is a mess!!!!

The crew could deploy more customer focus and not frown when asked a question. I’m speaking of one lady in particular who raised a hand in my face for me to wait whe I tried to ask a question and never came back to me. Very unprofessional and rude.

They set someone on our assigned seats and we ended up finding seats for ourselves to ensure the family sits together.

Very efficient and excellent service. Nice amenities and beautiful plane. Elevated meals. Boarding could have been more organized. We missed our connecting flight due to EU entry but Lufthansa was extremely quick to rebook us.

Aircraft had fairly roomy seats on economy. Food was good (beef dinner).

Perfect airline, super friendly, great service, tasty food. Would fly again.

The flight was delayed more than 1.5 hours. Phone calls to united did not satisfy our need to get to Chicago to met family for fight to europe. I was told the flight was booked thru luftansa and united could not make adjustments. When call luftansa they were unaware of the significant delay on the united flight out of mci. They would not authorize a flight change. We went to the airport, as if we would be flying as scheduled, United checked us in, as if our flight would leave as scheduled. We took our bag to be checked to the baggage drop and the agent their confirmed our flight was significantly delayed. She worked for 30 min to get us on another flight. We ended up flying to Denver then to Munich. The rest of the family that flew to Chicago for our meet up and flight to Europe ended up flying to Munich alone. We meet up in Munich for our last leg to luxembourg. In luxembourg we learned on bag was scheduled on our delayed flight. The flight was canceled and we did not receive the bag in lux. We filed a lost back claim. Now 3 days later we STILL do not have the bag. It is apparently in luxembourg and they maybe tried to deliver, however the names on the door of the air b&b do not match the name on the baggage claim so the French speaking delivery person called no one could understand him so he took the bag and left. My brother, traveling with me under a different reservation , has been without essentials for 3 days. One or all of us has stayed "home" each day waiting on the bag. Today was my turn. Delivery window was 10:30 to 2:30. No attempt to knock or ring bell. After the hang up call, my brother called me and told me to check the door. There was nothing there. No sign of attempted delivery, no delivery man, nothing. Being unable to change clothes and having family members take turns waiting on a bag that never comes has ruined this family vacation. Thanks United/Luftansa

The flight left an hour late and no explanation. Food was basically a few snacks out of bags and tiny cup of soda. Crew was pretty friendly.

The The check in process was terrible on both ends. It was not clear if we should use the United, Lufthansa, or Aragrant number. It took over an hour to check in on the front end – and then at return the Lufthansa online check in failed multiple times and only after two calls to their phone number could we accomplish the task. The link to the Kayak site provided no access for check in. This difficulty and ambiguity on both ends will affect our interest in using Kayak for foreign travel in the future.

You lost my bag then waiting on the phone for 30 mins for customer service just to be directed to call another number

Boarding staff, crew and food needs a lot of improvement!! It was awful Aircraft was old with minimal legspace

Spent unnecessary hours on phone calls to resolve small error on one of the passengers name... It was extremely stressful and time consuming... Not great... Also all 4 members of the family: 2 parents/ 2 teenagers were allocated separate seats (even separate floors... Not great...

Comfortable seats, good service overall. The food could’ve been a little bit better. The boarding process was slightly chaotic and in fairness, not all of that is related to the performance of British Airways.

The chairs were a bit tight even though I had extra feet space…2nd plane didn’t have entertainment and even though they said there was free WiFi-I believe the free WiFi wasn’t accessible unless u had some account set up….which I didn’t figure out

As I remember my last BA flight - mediocre at best. Uncomfortable with poor and minimal food and drinks. Screen broke shortly into flight so didn’t have access to entertainment either.

They gave away my business class seat. No explanation and no apology. Told me I had to take the downgrade if I wanted to get to India. Then no WiFi for 10 hours. Just ridiculous. We should not work with this company at Deloitte. They don’t know how to run a business.

ok. It's a short flight and it was delayed, hence the ok rating.

Would like to see clean bathrooms, especially the bathroom by the end of the crew flight the cleanest not the bestest thank you

Our flight from ORD was cancelled and BA rebooked is on a flight that originated before the time that they booked us on it. They did not realize we were already arrived in Chicago. Then American Airlines helped us get checked in to the new flight (the one BA assigned to us) which flight we did take although it was delayed about 2 hours, and our assigned seats that we paid for - on the original flight- were lost we did at least get to sit together. It was not too painful for all the changes and we made it to the UK alright though all in all with all the delays and cancellations the flight took about 20 hours to get us here.

though there was space in the cabin they asked us to check in our trolleys. As a result lots of things arrived damaged in Larnaca. They were fragile. When we asked the attendants why that.....they said talk to the captain!!! Unbelievable!

Boarding ,checking in was easy and quick . Comfort was not good.

Everything you need to know for your flight to Southeast Europe

Information on your arrival and departure airports