Southeast Europe

$404+ 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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ATH
May 6 — May 131
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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 May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$628
(Justfly.com)

One-way from

$404
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,381
Provider with most accurate pricing for Lambert-St Louis-Athens Eleftherios V. flight deals.
Provider most trusted by Cheapflights users for Lambert-St Louis-Athens Eleftherios V. flights.
From Lambert-St Louis to Southeast Europe
One-way flight from Lambert-St Louis to Southeast Europe
Highest demand for flights based on searches. 22% potential increase in price ($319 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($40 potential savings vs. average RT price).
Average for round-trip flights in May 2025

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 May 1, 2025.

This Justfly.com deal was found by Cheapflights users on 4/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/211:30 pmSTL - BEG
2 stops16h 05mAir Canada
Thu 8/216:10 amBEG - STL
2 stops20h 50mAir Canada
Deal found 4/30$628
This United Airlines deal was found by Cheapflights users on 4/30. 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 7/231:42 pmSTL - BEG
2 stops16h 28mUnited Airlines
Thu 8/216:10 amBEG - STL
2 stops20h 50mUnited Airlines
Deal found 4/30$632
This oojo deal was found by Cheapflights users on 4/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/295:27 pmSTL - DBV
2 stops19h 33mBritish Airways
Tue 8/198:40 pmDBV - STL
2 stops30h 39mBritish Airways
Deal found 4/29$651
This Booking.com deal was found by Cheapflights users on 4/30. 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.
Sun 8/101:30 pmSTL - OTP
2 stops41h 50mAir Canada
Sat 8/236:00 amOTP - STL
2 stops22h 00mAir Canada
Deal found 4/30$651
This FlightHub deal was found by Cheapflights users on 4/30. 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.
Sun 8/103:30 pmSTL - OTP
1 stop17h 20mMultiple Airlines
Sat 8/236:00 amOTP - STL
2 stops22h 00mMultiple Airlines
Deal found 4/30$656
This Delta deal was found by Cheapflights users on 4/30. 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 7/2310:30 amSTL - BEG
2 stops18h 25mDelta
Fri 8/226:00 amBEG - STL
2 stops17h 47mDelta
Deal found 4/30$680
This Kissandfly.com deal was found by Cheapflights users on 4/30. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/253:30 pmSTL - SPU
2 stops36h 55mScandinavian Airlines
Wed 9/312:20 pmSPU - STL
2 stops42h 19mScandinavian Airlines
Deal found 4/30$686
This Travelocity deal was found by Cheapflights users on 4/30. 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.
Wed 10/812:28 pmSTL - TIA
2 stops22h 07mLufthansa
Fri 10/246:40 amTIA - STL
1 stop13h 50mLufthansa
Deal found 4/30$699
This Lufthansa deal was found by Cheapflights users on 4/30. 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.
Sun 8/245:30 pmSTL - SPU
2 stops15h 45mLufthansa
Wed 9/310:40 amSPU - STL
2 stops36h 04mLufthansa
Deal found 4/30$700
This Delta deal was found by Cheapflights users on 4/30. 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.
Sun 8/2410:45 amSTL - SPU
2 stops23h 40mDelta
Fri 9/512:50 pmSPU - STL
2 stops36h 05mDelta
Deal found 4/30$738
This Gurufare deal was found by Cheapflights users on 4/29. 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.
Tue 7/2911:25 amSTL - DBV
1 stop15h 50mLufthansa
Tue 8/196:30 pmDBV - STL
2 stops28h 14mLufthansa
Deal found 4/29$741
This FlightHub deal was found by Cheapflights users on 4/30. 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.
Mon 7/215:30 pmSTL - BEG
2 stops15h 55mLufthansa
Fri 8/226:10 amBEG - STL
1 stop14h 20mLufthansa
Deal found 4/30$759

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 May 1, 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. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Mon 7/21

1:30 pm-12:35 pm

2 stops16h 05m

Belgrade Nikola Tesla

Thu 8/21

6:10 am-8:00 pm

2 stops20h 50m

$628

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 7/23

1:42 pm-1:10 pm

2 stops16h 28m

Belgrade Nikola Tesla

Thu 8/21

6:10 am-8:00 pm

2 stops20h 50m

$632

St. LouisDubrovnik

STL - DBV

STLDBV

Lambert-St Louis

Tue 7/29

5:27 pm-8:00 pm

2 stops19h 33m

Dubrovnik

Tue 8/19

8:40 pm-8:19 pm

2 stops30h 39m

$651

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Sun 8/10

1:30 pm-3:20 pm

2 stops41h 50m

Bucharest Otopeni Intl

Sat 8/23

6:00 am-8:00 pm

2 stops22h 00m

$651

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Sun 8/10

3:30 pm-4:50 pm

1 stop17h 20m

Bucharest Otopeni Intl

Sat 8/23

6:00 am-8:00 pm

2 stops22h 00m

$656

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 7/23

10:30 am-11:55 am

2 stops18h 25m

Belgrade Nikola Tesla

Fri 8/22

6:00 am-4:47 pm

2 stops17h 47m

$680

St. LouisSplit

STL - SPU

STLSPU

Lambert-St Louis

Mon 8/25

3:30 pm-11:25 am

2 stops36h 55m

Split

Wed 9/3

12:20 pm-11:39 pm

2 stops42h 19m

$686

St. LouisTirana

STL - TIA

STLTIA

Lambert-St Louis

Wed 10/8

12:28 pm-5:35 pm

2 stops22h 07m

Tirana Rinas

Fri 10/24

6:40 am-1:30 pm

1 stop13h 50m

$699

St. LouisSplit

STL - SPU

STLSPU

Lambert-St Louis

Sun 8/24

5:30 pm-4:15 pm

2 stops15h 45m

Split

Wed 9/3

10:40 am-3:44 pm

2 stops36h 04m

$700

St. LouisSplit

STL - SPU

STLSPU

Lambert-St Louis

Sun 8/24

5:45 pm-5:25 pm

2 stops16h 40m

Split

Tue 9/2

6:30 am-9:29 am

2 stops33h 59m

$738

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/1

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 $1,309). 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 May 1, 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 May 1, 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.
8.0
Very good

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good
8.0
Very good

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very good

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 $558 on American Airlines. Other airlines that offer cheap prices include United Airlines from $583 and Air Canada from $603 one-way.

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

  • 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 $1,309). 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

Browse thousands of different options on Cheapflights for your next trip

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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.

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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$581Average$1,124FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$680Average$1,176FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$683Average$1,312FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$711Average$1,105FlexibilityNo cancel feeOn-time69%
KLMCheapest$737Average$1,086FlexibilityNo cancel feeOn-time75%
DeltaCheapest$740Average$1,093FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$754Average$1,312FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$787Average$1,174FlexibilityNo cancel feeOn-time67%
Air FranceCheapest$852Average$1,289FlexibilityNo cancel feeOn-time77%

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