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Southeast Europe

$287+ Cheap flights from St. Louis (STL) to Southeast Europe

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ATH
Dec 4 — Dec 111
Thu 12/4
Thu 12/11
1 adult, Economy
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Find flight deals from St. Louis to Southeast Europe

Cheapest flights from St. Louis to Southeast Europe
Explore the most affordable flight options available from St. Louis to Southeast Europe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2025.

This Ovago deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/116:43 pmSTL - ATH
2 stops22h 57mLufthansa
Wed 11/266:15 amATH - STL
1 stop15h 40mLufthansa
Deal found 11/3$487
This United Airlines deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1111:35 amSTL - ATH
1 stop14h 30mUnited Airlines
Wed 11/266:15 amATH - STL
1 stop15h 40mUnited Airlines
Deal found 11/3$491
This Delta deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/56:39 amSTL - ATH
2 stops19h 16mDelta
Fri 12/1212:50 pmATH - STL
2 stops29h 00mDelta
Deal found 11/3$493
This CheapOair deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/116:43 pmSTL - ATH
2 stops32h 52mAir Canada
Wed 11/266:15 amATH - STL
2 stops41h 14mAir Canada
Deal found 11/3$497
This Air France deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/52:38 pmSTL - ATH
2 stops14h 57mMultiple Airlines
Fri 12/1212:50 pmATH - STL
1 stop36h 39mMultiple Airlines
Deal found 11/2$498
This KLM deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:32 pmSTL - ATH
1 stop33h 23mKLM
Fri 12/1212:50 pmATH - STL
1 stop36h 39mKLM
Deal found 11/3$499
This Delta deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/34:32 pmSTL - ATH
2 stops16h 03mDelta
Fri 12/1212:50 pmATH - STL
2 stops29h 00mDelta
Deal found 11/3$503
This Kiwi.com deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/56:42 pmSTL - ATH
2 stops21h 43mLufthansa
Fri 12/126:05 amATH - STL
1 stop15h 50mLufthansa
Deal found 11/1$533
This Delta deal was found by Cheapflights users on 11/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:00 amSTL - BEG
2 stops46h 55mDelta
Sun 12/76:05 amBEG - STL
2 stops24h 37mDelta
Deal found 11/3$562
This United Airlines deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/711:25 amSTL - OTP
2 stops18h 40mUnited Airlines
Tue 12/232:50 pmOTP - STL
1 stop31h 05mUnited Airlines
Deal found 11/4$564
This Gotogate deal was found by Cheapflights users on 11/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/76:42 pmSTL - OTP
2 stops21h 08mLufthansa
Tue 12/237:20 pmOTP - STL
2 stops26h 35mLufthansa
Deal found 11/4$576
This Expedia deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/24:05 pmSTL - BEG
2 stops14h 40mMultiple Airlines
Tue 12/91:50 pmBEG - STL
1 stop31h 05mMultiple Airlines
Deal found 11/2$645

Cheap flight deals from St. Louis to Southeast Europe

Keep the following information in mind while searching for St. Louis to Southeast Europe flight deals. Data was last updated November 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$493
(Delta)

One-way from

$287
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$847
Provider with most accurate pricing for Lambert-St Louis-Athens Eleftherios V. flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Athens Eleftherios V. flights.
Search Deals
From Lambert-St Louis to Southeast Europe
Search Deals
One-way flight from Lambert-St Louis to Southeast Europe
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($334 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Southeast Europe that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 4, 2025.
Use the filters below to find and compare flights from St. Louis to Southeast Europe that are best for you.

Fly from

St. Louis

Fly to

Southeast Europe

Route

Depart

Return

Price

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Wed 1/21

11:22 am-1:40 am

2 stops30h 18m

Athens Eleftherios V.

Fri 1/30

6:05 am-1:55 pm

1 stop15h 50m

$478

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Thu 1/22

11:20 am-1:40 am

2 stops30h 20m

Athens Eleftherios V.

Fri 1/30

6:05 am-3:29 pm

2 stops41h 24m

$496

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Fri 2/20

6:00 am-6:05 pm

2 stops28h 05m

Athens Eleftherios V.

Sat 2/28

6:30 am-9:00 pm

2 stops22h 30m

$499

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Wed 1/21

11:22 am-12:00 pm

2 stops16h 38m

Athens Eleftherios V.

Fri 1/30

6:05 am-7:27 pm

2 stops21h 22m

$499

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 2/10

8:05 am-1:40 am

2 stops33h 35m

Athens Eleftherios V.

Sun 2/22

6:15 am-9:00 pm

2 stops22h 45m

$499

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Wed 12/3

4:32 pm-9:55 am

1 stop33h 23m

Athens Eleftherios V.

Fri 12/12

1:45 pm-11:42 pm

2 stops17h 57m

$501

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Wed 12/3

4:32 pm-4:35 pm

2 stops16h 03m

Athens Eleftherios V.

Fri 12/12

12:50 pm-9:50 am

2 stops29h 00m

$503

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Wed 1/21

4:05 pm-4:40 pm

2 stops16h 35m

Athens Eleftherios V.

Fri 1/30

6:05 am-5:43 pm

3 stops19h 38m

$509

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Tue 3/3

11:34 am-1:45 pm

2 stops18h 11m

Athens Eleftherios V.

Mon 3/9

8:10 pm-9:48 pm

2 stops32h 38m

$515

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Sat 2/28

10:00 am-7:30 pm

2 stops25h 30m

Athens Eleftherios V.

Sun 3/8

1:30 pm-11:40 pm

2 stops41h 10m

$518

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Showing 1-10 of 50 results
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Best time to book a flight from St. Louis to Southeast Europe

Have a flexible travel schedule? Discover the best time to fly to Southeast Europe from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Southeast Europe

What is the cheapest month to book a flight from St. Louis to Southeast Europe?

Currently, November is the cheapest month in which you can book a flight from St. Louis to Southeast Europe (average of $546). Flying from St. Louis to Southeast Europe in June is currently the most expensive (average of $879). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to YMH?

Find hourly flight availability from St. Louis to Southeast Europe. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 4, 2025.

It’s typically best to fly out from St. Louis to Southeast Europe in the evening. Doing so could potentially save you 12% on the flight price compared to flying at noon, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Southeast Europe. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their St. Louis to Southeast Europe flight should consider departing on Monday mornings when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Southeast Europe

Get insights into the airlines that provide service to Southeast Europe. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Southeast Europe. Reviews last updated November 4, 2025.
See what other customers who have flown with Delta, KLM, and United Airlines from St. Louis to Southeast Europe have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,002 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,002 reviews
Delta
7.9
Good
8,002 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
KLM
7.7
Good
1,405 reviews
Delta
7.9
Good
8,002 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
8,999 reviews
Delta
7.9
Good
8,002 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Air Canada
7.1
Good
10,401 reviews
Delta
7.9
Good
8,002 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Lufthansa
6.8
Okay
7,547 reviews
Delta
7.9
Good
8,002 reviews

Entertainment

7.9

Overall

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Southeast Europe. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to Southeast Europe?

    If you book a flight to Southeast Europe from St. Louis, you will be flying from Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

  • How long is the flight from St. Louis to Southeast Europe?

    A quick flight from St. Louis to Southeast Europe can take about 14h 50m. Lufthansa provides one of the quickest options available for as low as $558. The distance from St. Louis to Southeast Europe is about 5202 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from St. Louis to Southeast Europe one-way?

    One-way options have recently been found by users for as low as $395 on Austrian Airlines. Other airlines that offer cheap prices include Lufthansa from $404 and United Airlines from $406 one-way.

  • What are the most popular routes from St. Louis to Southeast Europe?

    The most popular flight routes from St. Louis to Southeast Europe are Lambert-St Louis - Athens Eleftherios V., Lambert-St Louis - Sarajevo Butmir and Lambert-St Louis - Zagreb Franjo Tuđman.

  • Can I find deals for flights from St. Louis to Southeast Europe that include hotel bookings?

    Yes. In addition to deals on St. Louis to Southeast Europe flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Southeast Europe?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Southeast Europe.

  • Can I find deals for business class flights from St. Louis to Southeast Europe?

    Yes. Cheapflights offers flight deals from St. Louis to Southeast Europe by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Southeast Europe?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Southeast Europe (average of $546). Flying from St. Louis to Southeast Europe in June is currently the most expensive (average of $879). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for St. Louis to Southeast Europe

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from St. Louis to Southeast Europe

Discover the top 9 airlines that operate flights from St. Louis to Southeast Europe. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$546Average$1,136FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$574Average$1,144FlexibilityNo cancel feeOn-time67%
Scandinavian AirlinesCheapest$581Average$1,124FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$606Average$934FlexibilityNo cancel feeOn-time70%
DeltaCheapest$629Average$984FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$647Average$974FlexibilityNo cancel feeOn-time69%
Virgin AtlanticCheapest$653Average$1,280FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$658Average$1,350FlexibilityNo cancel feeOn-time71%
KLMCheapest$671Average$992FlexibilityNo cancel feeOn-time75%

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