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Southeast Europe

$327+ 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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ATH
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
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 agosto 14, 2025.

Round-trip from

$588
(Kiwi.com)

One-way from

$327
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$929
From Lambert-St Louis to Southeast Europe
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One-way flight from Lambert-St Louis to Southeast Europe
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Highest demand for flights based on searches. 24% potential increase in price ($327 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in August 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 agosto 14, 2025.

This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
mié. 11/193:50 pmSTL - OTP
1 stop14h 10mLufthansa
mié. 11/266:05 amOTP - STL
1 stop15h 50mLufthansa
Deal found 8/13$588
This Booking.com deal was found by Cheapflights users on 8/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/225:00 amSTL - ATH
2 stops21h 05mMultiple Airlines
mar. 11/41:25 pmATH - STL
2 stops42h 19mMultiple Airlines
Deal found 8/13$599
This Gotogate deal was found by Cheapflights users on 8/13. 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.
dom. 11/164:05 pmSTL - OTP
2 stops15h 45mMultiple Airlines
lun. 11/247:10 pmOTP - STL
2 stops52h 19mMultiple Airlines
Deal found 8/13$605
This Gurufare deal was found by Cheapflights users on 8/13. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/163:23 pmSTL - OTP
2 stops15h 32mBritish Airways
mar. 11/258:00 amOTP - STL
2 stops22h 29mBritish Airways
Deal found 8/13$611
This KAYAK deal was found by Cheapflights users on 8/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/163:50 pmSTL - OTP
1 stop18h 40mLufthansa
mié. 11/265:55 amOTP - STL
1 stop16h 00mLufthansa
Deal found 8/13$614
This United Airlines deal was found by Cheapflights users on 8/13. 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.
mié. 11/193:50 pmSTL - OTP
1 stop14h 10mUnited Airlines
mar. 11/255:55 amOTP - STL
2 stops41h 34mUnited Airlines
Deal found 8/13$616
This United Airlines deal was found by Cheapflights users on 8/13. 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.
mié. 10/155:00 amSTL - DBV
2 stops19h 15mUnited Airlines
mié. 10/229:15 amDBV - STL
2 stops21h 43mUnited Airlines
Deal found 8/13$618
This FlightHub deal was found by Cheapflights users on 8/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/176:43 pmSTL - TIA
2 stops21h 07mLufthansa
vie. 12/56:15 amTIA - STL
1 stop14h 40mLufthansa
Deal found 8/12$619
This Travelocity deal was found by Cheapflights users on 8/12. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/104:05 pmSTL - SJJ
2 stops14h 50mMultiple Airlines
lun. 11/242:45 pmSJJ - STL
2 stops55h 44mMultiple Airlines
Deal found 8/12$620
This Air Canada deal was found by Cheapflights users on 8/12. 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.
lun. 11/174:05 pmSTL - TIA
2 stops23h 45mMultiple Airlines
vie. 12/59:45 amTIA - STL
2 stops36h 44mMultiple Airlines
Deal found 8/12$621
This Air Canada deal was found by Cheapflights users on 8/13. 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.
sáb. 11/154:05 pmSTL - OTP
2 stops42h 20mAir Canada
mar. 11/255:55 amOTP - STL
2 stops41h 34mAir Canada
Deal found 8/13$622
This Expedia deal was found by Cheapflights users on 8/13. 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.
lun. 11/104:00 pmSTL - ATH
2 stops37h 20mScandinavian Airlines
sáb. 11/157:30 pmATH - STL
2 stops36h 09mScandinavian Airlines
Deal found 8/13$623

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 agosto 14, 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. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

mié. 11/19

3:50 pm-2:00 pm

1 stop14h 10m

Bucharest Otopeni Intl

mié. 11/26

6:05 am-1:55 pm

1 stop15h 50m

$588

St. LouisAthens

STL - ATH

STLATH

Lambert-St Louis

mié. 10/22

5:00 am-10:05 am

2 stops21h 05m

Athens Eleftherios V.

mar. 11/4

1:25 pm-11:44 pm

2 stops42h 19m

$599

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

dom. 11/16

4:05 pm-3:50 pm

2 stops15h 45m

Bucharest Otopeni Intl

lun. 11/24

7:10 pm-3:29 pm

2 stops52h 19m

$605

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

lun. 11/17

2:17 pm-3:30 pm

2 stops17h 13m

Bucharest Otopeni Intl

mar. 11/25

8:00 am-10:29 pm

2 stops22h 29m

$611

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

dom. 11/16

3:23 pm-2:55 pm

2 stops15h 32m

Bucharest Otopeni Intl

mar. 11/25

8:00 am-10:29 pm

2 stops22h 29m

$611

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

dom. 11/16

3:50 pm-6:30 pm

1 stop18h 40m

Bucharest Otopeni Intl

mié. 11/26

5:55 am-1:55 pm

1 stop16h 00m

$614

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

mar. 11/18

11:49 am-1:05 am

2 stops29h 16m

Bucharest Otopeni Intl

mié. 11/26

5:55 am-1:55 pm

1 stop16h 00m

$615

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

lun. 11/17

6:43 pm-6:30 pm

2 stops15h 47m

Bucharest Otopeni Intl

mié. 11/26

5:55 am-1:55 pm

1 stop16h 00m

$615

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

dom. 11/16

3:50 pm-2:05 pm

1 stop14h 15m

Bucharest Otopeni Intl

jue. 11/27

5:50 am-3:29 pm

2 stops41h 39m

$616

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

lun. 11/17

4:05 pm-3:50 pm

2 stops15h 45m

Bucharest Otopeni Intl

jue. 11/27

5:50 am-3:29 pm

2 stops41h 39m

$616

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 46 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 $1,286). 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 agosto 14, 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.

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 agosto 14, 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
8.0
Very good
7,980 reviews

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

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
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

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
1,381 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

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
8,916 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

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 Canada
7.1
Good
9,949 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

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!
Lufthansa
6.8
Okay
7,317 reviews
Delta
8.0
Very good
7,980 reviews

Food

7.3

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

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 $488 on Air Canada. Other airlines that offer cheap prices include British Airways from $515 and Scandinavian Airlines from $597 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 - Split.

  • 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 $1,286). 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 agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$574Average$1,137FlexibilityNo cancel feeOn-time67%
Scandinavian AirlinesCheapest$581Average$1,086FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$641Average$1,187FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$647Average$959FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$653Average$1,280FlexibilityNo cancel feeOn-time72%
DeltaCheapest$696Average$923FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$696Average$1,001FlexibilityNo cancel feeOn-time69%
KLMCheapest$737Average$954FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$754Average$1,306FlexibilityNo cancel feeOn-time71%

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