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Southeast Europe

$344+ 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 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ATH
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
1 adult, Economy
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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 June 18, 2025.

Round-trip from

$595
(Iberia)

One-way from

$344
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,396
From Lambert-St Louis to Southeast Europe
Search Deals
One-way flight from Lambert-St Louis to Southeast Europe
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Highest demand for flights based on searches. 22% potential increase in price ($308 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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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 June 18, 2025.

This Iberia deal was found by Cheapflights users on 6/18. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/221:22 pmSTL - ATH
1 stop13h 48mIberia
Tue 11/41:00 pmATH - STL
1 stop15h 16mIberia
Deal found 6/18$595
This Finnair deal was found by Cheapflights users on 6/17. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/294:52 pmSTL - DBV
2 stops20h 08mMultiple Airlines
Tue 8/1910:25 amDBV - STL
2 stops18h 52mMultiple Airlines
Deal found 6/17$595
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Wed 10/226:30 amSTL - ATH
2 stops19h 35mUnited Airlines
Tue 11/42:10 pmATH - STL
2 stops17h 34mUnited Airlines
Deal found 6/16$603
This Air Canada deal was found by Cheapflights users on 6/18. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/246:35 amSTL - ATH
2 stops22h 25mAir Canada
Wed 9/34:00 pmATH - STL
2 stops31h 44mAir Canada
Deal found 6/18$632
This Gotogate deal was found by Cheapflights users on 6/16. 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 8/311:30 pmSTL - ATH
1 stop12h 35mMultiple Airlines
Wed 9/106:30 amATH - STL
1 stop15h 00mMultiple Airlines
Deal found 6/16$635
This Mytrip deal was found by Cheapflights users on 6/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/264:05 pmSTL - BEG
2 stops41h 20mAir Canada
Fri 8/226:05 amBEG - STL
2 stops44h 55mAir Canada
Deal found 6/17$641
This Delta deal was found by Cheapflights users on 6/17. 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.
Mon 8/46:30 amSTL - DBV
2 stops21h 15mDelta
Mon 8/181:25 pmDBV - STL
2 stops32h 16mDelta
Deal found 6/17$645
This KLM deal was found by Cheapflights users on 6/16. 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.
Mon 8/41:29 pmSTL - ATH
1 stop13h 26mKLM
Thu 8/2112:10 pmATH - STL
1 stop19h 04mKLM
Deal found 6/16$655
This Delta deal was found by Cheapflights users on 6/16. 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.
Mon 8/46:00 amSTL - ATH
2 stops17h 00mDelta
Fri 8/229:10 amATH - STL
1 stop22h 04mDelta
Deal found 6/16$659
This Lufthansa deal was found by Cheapflights users on 6/17. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/255:30 pmSTL - SPU
2 stops15h 45mLufthansa
Fri 9/57:45 amSPU - STL
1 stop12h 45mLufthansa
Deal found 6/17$682
This Lufthansa deal was found by Cheapflights users on 6/18. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/265:30 pmSTL - ATH
2 stops19h 40mLufthansa
Tue 9/96:40 amATH - STL
2 stops17h 04mLufthansa
Deal found 6/18$689
This Expedia deal was found by Cheapflights users on 6/17. 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.
Wed 10/812:25 pmSTL - TIA
2 stops27h 25mLufthansa
Fri 10/246:40 amTIA - STL
1 stop13h 50mLufthansa
Deal found 6/17$698

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 June 18, 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 10/22

1:22 pm-11:10 am

1 stop13h 48m

Athens Eleftherios V.

Tue 11/4

1:00 pm-8:16 pm

1 stop15h 16m

$595

St. LouisDubrovnik

STL - DBV

STLDBV

Lambert-St Louis

Tue 7/29

4:52 pm-8:00 pm

2 stops20h 08m

Dubrovnik

Tue 8/19

10:25 am-10:17 pm

2 stops18h 52m

$595

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Wed 10/22

6:30 am-10:05 am

2 stops19h 35m

Athens Eleftherios V.

Tue 11/4

2:10 pm-11:44 pm

2 stops17h 34m

$603

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Wed 8/13

1:30 pm-2:00 pm

1 stop16h 30m

Athens Eleftherios V.

Thu 8/28

4:00 pm-2:33 pm

2 stops30h 33m

$627

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Sun 8/31

1:30 pm-12:50 pm

1 stop15h 20m

Athens Eleftherios V.

Wed 9/10

6:30 am-7:57 pm

2 stops21h 27m

$633

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sat 7/26

4:05 pm-4:25 pm

2 stops41h 20m

Belgrade Nikola Tesla

Fri 8/22

6:05 am-8:00 pm

2 stops44h 55m

$641

St. LouisDubrovnik

STL - DBV

STLDBV

Lambert-St Louis

Mon 8/4

6:30 am-10:45 am

2 stops21h 15m

Dubrovnik

Mon 8/18

1:25 pm-2:41 pm

2 stops32h 16m

$645

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Mon 8/4

9:27 am-10:55 am

1 stop17h 28m

Athens Eleftherios V.

Fri 8/22

9:10 am-5:54 pm

1 stop16h 44m

$655

St. LouisSplit

STL - SPU

STLSPU

Lambert-St Louis

Mon 8/25

5:30 pm-4:15 pm

2 stops15h 45m

Split

Fri 9/5

7:45 am-1:30 pm

1 stop12h 45m

$682

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

Mon 9/8

5:30 pm-6:35 pm

2 stops17h 05m

Athens Eleftherios V.

Fri 9/19

6:00 am-1:30 pm

2 stops15h 30m

$691

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

Showing 1-10 of 49 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 $679). Flying from St. Louis to Southeast Europe in June is currently the most expensive (average of $1,289). 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 June 18, 2025.

When flying from St. Louis to Southeast Europe, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Southeast Europe by month

Plan your trip to Southeast Europe by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Southeast Europe ranges from 0.2 - 2.5 inches per month. December is typically the wettest month, when rainfall can reach 2.5 in. June is typically the driest time to visit Southeast Europe when rainfall is around 0.2 in.

Temperature in Southeast Europe by month

Plan your trip to Southeast Europe by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Southeast Europe, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 50.0 F).

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 June 18, 2025.
Read through reviews of airlines operating flights from St. Louis to Southeast Europe, such as Delta, KLM and Austrian Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,964 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,964 reviews
Delta
8.0
Very good
7,964 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,365 reviews
Delta
8.0
Very good
7,964 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
804 reviews
Delta
8.0
Very good
7,964 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,467 reviews
Delta
8.0
Very good
7,964 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,810 reviews
Delta
8.0
Very good
7,964 reviews

Crew

8.5

Boarding

8.2

Food

7.3

Overall

8.0

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • 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 $469 on Scandinavian Airlines. Other airlines that offer cheap prices include Air Canada from $492 and Lufthansa from $502 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 - Dubrovnik.

  • 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 $679). Flying from St. Louis to Southeast Europe in June is currently the most expensive (average of $1,289). 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 June 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$574Average$1,171FlexibilityNo cancel feeOn-time67%
Scandinavian AirlinesCheapest$581Average$1,086FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$594Average$1,119FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$653Average$1,280FlexibilityNo cancel feeOn-time72%
KLMCheapest$653Average$954FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$661Average$1,055FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$683Average$1,270FlexibilityNo cancel feeOn-time76%
DeltaCheapest$696Average$928FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$754Average$1,265FlexibilityNo cancel feeOn-time71%

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