$475 Find Cheap Flights from St. Louis to Southeast Europe

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 7/13. 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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KAYAK searches hundreds of travel sites at once for deals on flights to Southeast Europe

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Southeast Europe.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Southeast Europe.
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Flights Deals

Best Southeast Europe Flight Deals from St. Louis

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Athens
Athens1 stop$634
Tirana
Tirana2 stops$699
Belgrade
Belgrade2 stops$680
Zagreb
Zagreb2 stops$638
Split
Split2 stops$725
Sofia
Sofia2 stops$1,189
Dubrovnik
Dubrovnik2 stops$651
Thera
Thera2 stops$1,365
Thessaloniki
Thessaloniki2 stops$1,393
Sarajevo
Sarajevo1 stop$720
Heraklion
Heraklion2 stops$939
Skopje
Skopje2 stops$984
Mykonos
Mykonos2 stops$1,422
Pristina
Pristina2 stops$1,203
Cluj Napoca
Cluj Napoca2 stops$1,205
Athens
Athens1 stop$634
Tirana
Tirana2 stops$699
Belgrade
Belgrade2 stops$680
Zagreb
Zagreb2 stops$638
Split
Split2 stops$725
Sofia
Sofia2 stops$1,189
Dubrovnik
Dubrovnik2 stops$651
Thera
Thera2 stops$1,365
Thessaloniki
Thessaloniki2 stops$1,393
Sarajevo
Sarajevo1 stop$720
Heraklion
Heraklion2 stops$939
Skopje
Skopje2 stops$984
Mykonos
Mykonos2 stops$1,422
Pristina
Pristina2 stops$1,203
Cluj Napoca
Cluj Napoca2 stops$1,205

Cheap Flight Deals from St. Louis to Southeast Europe (STL-zzYMH)

 
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.

Recent round-trip flight deals from St. Louis to Southeast Europe

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from St. Louis to Southeast Europe.
Discover the best prices for you by selecting your travel dates on KAYAK.
British Airways Logo
7:23 am - 11:10 amSTL-ATH
19h 47m1 stop
British Airways Logo
1:00 pm - 8:16 pmATH-STL
15h 16m1 stop
$634British Airways
Find Deal
Wed, Oct 22 - Tue, Nov 4
American Airlines Logo
6:35 am - 9:15 amSTL-ATH
18h 40m1 stop
American Airlines Logo
1:00 pm - 12:04 pmATH-STL
31h 04m1 stop
$635American Airlines
Find Deal
Wed, Oct 22 - Tue, Nov 4
Lufthansa Logo
5:31 pm - 9:20 pmSTL-ZAG
20h 49m2 stops
Lufthansa Logo
6:05 am - 3:44 pmZAG-STL
16h 39m2 stops
$642Lufthansa
Find Deal
Tue, Jul 22 - Fri, Aug 22
Lufthansa Logo
5:30 pm - 9:20 pmSTL-ZAG
20h 50m2 stops
Lufthansa Logo
6:05 am - 3:44 pmZAG-STL
16h 39m2 stops
$643Lufthansa
Find Deal
Mon, Jul 21 - Fri, Aug 22
United Airlines Logo
6:15 am - 10:05 amSTL-ATH
19h 50m2 stops
United Airlines Logo
1:25 pm - 2:18 pmATH-STL
56h 53m2 stops
$658United Airlines
Find Deal
Wed, Oct 22 - Tue, Nov 4
Air Canada Logo
9:15 am - 10:05 amSTL-ATH
16h 50m2 stops
Air Canada Logo
1:15 pm - 2:18 pmATH-STL
33h 03m2 stops
$670Air Canada
Find Deal
Wed, Oct 22 - Tue, Nov 4
Delta Logo
7:00 am - 11:55 amSTL-BEG
21h 55m2 stops
Delta Logo
12:35 pm - 2:35 pmBEG-STL
33h 00m2 stops
$680Delta
Find Deal
Tue, Jul 29 - Mon, Aug 18
Air Canada Logo
9:15 am - 11:10 amSTL-ATH
17h 55m1 stop
Air Canada Logo
1:15 pm - 3:26 pmATH-STL
34h 11m1 stop
$682Air Canada
Find Deal
Wed, Oct 22 - Tue, Nov 4
Delta Logo
6:04 pm - 11:55 amSTL-BEG
34h 51m2 stops
Delta Logo
12:35 pm - 2:35 pmBEG-STL
33h 00m2 stops
$685Delta
Find Deal
Sat, Aug 2 - Mon, Aug 18
United Airlines Logo
6:45 am - 11:10 amSTL-SJJ
22h 25m2 stops
United Airlines Logo
11:50 am - 2:18 pmSJJ-STL
33h 28m2 stops
$727United Airlines
Find Deal
Sun, Oct 26 - Sun, Nov 9
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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.

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 $734 (return) on average. On the other hand, the most expensive months are June and May, when the average cost of round-trip tickets is $1,549 and $1,381 respectively.

What’s the cheapest day of the week to fly from St. Louis to Southeast Europe?

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

Your flight ticket price will generally be cheaper if you fly to Southeast Europe on a Sunday and more expensive on a Friday. On your return trip to St. Louis, you should consider flying back on a Tuesday, and avoid Mondays for better deals.

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 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.


Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$475
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 17% increase in price.
Flight from St. Louis to Zagreb

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.

  • What is the cheapest time of day to fly to Southeast Europe?

    The cheapest time of day to fly to Southeast Europe is generally in the evening, when round-trip flights cost $1,240 on average. Morning departures are around 9% more expensive than evening flights, on average. The most expensive time of day to fly to Southeast Europe is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,454.

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.
8.0
DeltaOverall score based on 7936 reviews
7.9Entertainment
8.5Crew
8.2Boarding
7.3Food
7.9Comfort
Airline reviews

Our bag was lost so that made unnecessary chaos On our trip

6.0 GoodBarbara, Apr 2025JFK - FCO
Read more Delta reviews

Our bag was lost so that made unnecessary chaos On our trip

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

It was an overnight flight and I desperately needed coffee before we landed, but Delta does only one beverage service, and that is shortly after takeoff, not before landing at 5 am.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

This portion of the flight was through Indigo. A local carrier. So all economy seating. No real service some refreshments for purchase standard economy stuff.

You should not have to pay for WiFi in business class

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

Great boarding, great short flight but no entertainment whatsoever and no wifi. Prepare to disembark by a staircase.

Transfer at CDG to connecting KLM flight to Amsterdam was a NIGHTMARE. LONG WALKWAYS, NO MOVING WALKWAYS, POOR signage, Have to take a train & No staff visible to help navigate the maze. AVOID TRANSFER AT CDG AT ALL COST.

Good flight with KLM, friendly staff. Food was good, had much worse on other airlines. Selection of drinks also good enough for us. Entertainment was also good. The economy seats are ok and that’s it. For a 12 hour flight I think a little more comfort in the economy seats in pitch and softness would be highly appreciated by the customers and can makte the difference.

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

A bit rush for transit. Food and entertainment are not available

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

Multiple delays and not straight answer from the United team

For economy, it was very good. Staff was great, they even let some of us change seats for more leg room... Put an empty seat between us which was fantastic for a 12hr flight. Onboard entertainment was excellent, I think over 200 choices of movies/tv/etc The bad was the barely/nonfunctional wifi that cost either $16.99 or 1700 miles (full flight). It was atrocious... Definitely the worst of the last 3 long haul major airlines I was on the last few months.

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

Electric plugs didn't work. Entertainment system wasn't working

All was good except for the seats, not very comfy.

2.5 hour delay sitting in the plane on the tarmac, you tell me how the experience was

I hope these comments will find their way to AC customer experience team. Me and my spouse 50 years of aged coming back from 7 days perfect vacation... While boarding in FLL flight AC1621, one of the boarding agents (tall aged african american) man literelly yeld at my wife during the picture talking process. MAM ! STEP !! BACK !!! We are not illegal immegrants beying deported, nor are we in the millitary. We are customers returning home. This was unacceptable. While boarding in YYZ flight AC1154, one of the boarding agents (tall aged caucasian) man criticied with several complesant remarks my passport condition saying that I could not travel intl with it due to stain, decoloration, and BLOOD. My passport does not have blood on it! Yes it might be in less than perfect condition, but their are ways to talk to customer that does not imply not allow a boarding agent to be angry fathery like, or a custom agent looking at a suspicious individual. Both experience were less than acceptable for might I remind you a paying CUSTOMER returning home.

Short flight so no food or entertainment. Good landing at SFO and on time. We were told no carryon luggage yet lots of people were puting bags in overhead compartments. The rules need to be made more clear. I was on the first leg of an international flight and this is the first time I could not have carryon luggage.

This flight didn't happen for me because of overbooking.

My flight was overbooked and they would not let me board. I had to book another flight and pay the full amount of that flight. I did not get any help at all from Air Canada or United Airlines.

Comfortable seats and movies entertainment available. Better experience than the flight from Toronto to Denver.

Poor air traffic controller staffing led to a 50%reduction on flights so we got to wait 4 hrs for our flight! Very disorganized at the gate Poor communication with customers

It was delayed by almost 90 minutes and that messed up our plans but it was beyond UA’s control that is what we heard

Terrible experience, flight was delayed both ways. Limited compensation for the 5+ hour delay. Will not be flying Air Canada Rouge, and don’t recommend you do either.

The row of seats were so cramped it was difficult to get in and out of your seat. I even upgraded. A long flight and sad accommodations 😵‍💫 the shorter flight was very comfortable and the seating was spacious

I bought a ticket and paid for for our luggage but I had to pay for my luggage again. I’m so disappointed! We had a 30 min delay and because of that we missed our connecting flight and were told that we would be on the next flight (9am flight ) but we were landed we were booked at 12pm flight. I had a little baby w me, it was very stressful. I begged to leave at 10 am at least. I was emailed that we get a voucher but they didn’t work when we were at a breakfast store. I’ve been always happy w Lufthansa but this time was awful.

Good service … bus transfer upon arrival from plane to terminal: atrocious!!!

helpful and friendly. The Lufthanza people I dealt with before my holiday were so unhelpful by comparison.

We had a 1 1/2 hour delay before we left Denver. When we arrive to Frankfort, they didn’t announce that people with connecting flights to exit the plane first. My next flight was already boarding when we we taxiing in to the gate. I waited another 10 minutes to get off the plane. I had to run to catch my next flight. I mean run! I made it with one minute to spare, but my luggage did not. My luggage came two hours later on a different flight.

My flight was late from US to Frankfurt so I missed my connecting flight flight and I had to wait for long to catch the next flight which was very tiring. Otherwise everyone was very nice.

It would have been nice if my luggage had made it onto my connecting flight as well. Now I have to wait for my luggage to be delivered and that might take a while, which certainly put a damper on the entire experience.

Crew was not happy. Very uncomfortable seats. When person leans back in front of you the screen is too close to me. Food was awful.

They lost my luggage and despite all follow ups through emails and phone calls they don’t give me an update

Everything went really well. Snacks could be better and there was no tea/coffee service after dinner. Crew was helpful and friendly.

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