Serbia

$644+ Cheap flights from St. Louis (STL) to Serbia

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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BEG
Apr 16 — Apr 231
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Cheap flight deals from St. Louis to Serbia

Cheapest flights from St. Louis to Serbia
Explore the most affordable flight options available from St. Louis to Serbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 17, 2026.

This Fareboom deal was found by Cheapflights users on 3/16. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/42:25 pm
STL
-
BEG
1 stop18h 45m
Air Serbia
Sat 4/115:20 pm
BEG
-
STL
1 stop22h 04m
Air Serbia
Deal found 3/16$796
This Sembo deal was found by Cheapflights users on 3/15. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:55 pm
STL
-
BEG
2 stops21h 40m
Multiple Airlines
Wed 5/68:00 pm
BEG
-
STL
2 stops31h 04m
Multiple Airlines
Deal found 3/15$821
This Kissandfly.com deal was found by Cheapflights users on 3/15. 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.
Wed 4/296:55 pm
STL
-
BEG
2 stops21h 40m
Lufthansa
Wed 5/66:10 am
BEG
-
STL
1 stop14h 15m
Lufthansa
Deal found 3/15$832
This lastminute.com deal was found by Cheapflights users on 3/16. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:09 pm
STL
-
BEG
2 stops14h 16m
Lufthansa
Thu 5/71:10 pm
BEG
-
STL
2 stops15h 03m
Lufthansa
Deal found 3/16$904
This Turkish Airlines deal was found by Cheapflights users on 3/16. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/287:41 am
STL
-
BEG
2 stops48h 29m
Turkish Airlines
Sat 4/118:25 pm
BEG
-
STL
2 stops31h 48m
Turkish Airlines
Deal found 3/16$927
This Fareboom deal was found by Cheapflights users on 3/15. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2012:27 pm
STL
-
BEG
1 stop14h 03m
Air Serbia
Mon 6/110:35 am
BEG
-
STL
1 stop20h 19m
Air Serbia
Deal found 3/15$933
This Fareboom deal was found by Cheapflights users on 3/16. 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 Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/31:45 pm
STL
-
BEG
1 stop12h 45m
Air Serbia
Wed 7/110:35 am
BEG
-
STL
1 stop20h 19m
Air Serbia
Deal found 3/16$955
This Cheapflightsfares deal was found by Cheapflights users on 3/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/41:13 pm
STL
-
BEG
2 stops14h 12m
Multiple Airlines
Sat 8/221:40 pm
BEG
-
STL
2 stops16h 20m
Multiple Airlines
Deal found 3/16$976
This BusinessClass deal was found by Cheapflights users on 3/16. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/43:30 pm
STL
-
BEG
1 stop13h 55m
Lufthansa
Sat 8/221:40 pm
BEG
-
STL
2 stops16h 20m
Lufthansa
Deal found 3/16$988
This Gotogate deal was found by Cheapflights users on 3/13. 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.
Sun 9/612:10 pm
STL
-
BEG
2 stops17h 10m
Multiple Airlines
Fri 9/185:50 am
BEG
-
STL
1 stop14h 35m
Multiple Airlines
Deal found 3/13$997

Find flight deals from St. Louis to Serbia

Keep the following information in mind while searching for St. Louis to Serbia flight deals. Data was last updated March 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$796
(Fareboom)

One-way from

$644
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$823
Provider with most accurate pricing for Lambert-St Louis-Belgrade Nikola Tesla flight deals.
Provider most trusted by Cheapflights users for Lambert-St Louis-Belgrade Nikola Tesla flights.
From Lambert-St Louis to Serbia
One-way flight from Lambert-St Louis to Serbia
High demand for flights, 4% potential price rise
Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).
Average for round-trip flights in March 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Serbia 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 March 17, 2026.
Use the filters below to find and compare flights from St. Louis to Serbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 4/29

6:55 pm-11:35 pm

2 stops21h 40m

Belgrade Nikola Tesla

Wed 5/6

8:00 pm-8:04 pm

2 stops31h 04m

$821

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sat 3/28

7:41 am-2:10 pm

2 stops48h 29m

Belgrade Nikola Tesla

Sat 4/11

8:25 pm-9:13 pm

2 stops31h 48m

$927

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 5/20

12:27 pm-9:30 am

1 stop14h 03m

Belgrade Nikola Tesla

Mon 6/1

10:35 am-11:54 pm

1 stop20h 19m

$933

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sun 9/6

6:55 pm-4:30 pm

2 stops14h 35m

Belgrade Nikola Tesla

Fri 9/18

1:05 pm-11:37 pm

2 stops17h 32m

$1,011

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sat 8/1

6:48 pm-4:30 pm

2 stops38h 42m

Belgrade Nikola Tesla

Sat 8/15

1:40 pm-2:02 pm

2 stops31h 22m

$1,041

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Fri 4/3

3:30 pm-3:45 pm

1 stop17h 15m

Belgrade Nikola Tesla

Sun 4/19

5:50 am-3:48 pm

2 stops16h 58m

$1,119
Quickest round-trip

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Fri 4/3

3:30 pm-12:25 pm

1 stop13h 55m

Belgrade Nikola Tesla

Sun 4/19

5:50 am-1:25 pm

1 stop14h 35m

$1,138

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 5/20

7:05 am-12:30 pm

2 stops22h 25m

Belgrade Nikola Tesla

Mon 6/1

4:55 pm-1:25 pm

1 stop27h 30m

$1,215

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 6/3

10:15 am-11:50 am

2 stops18h 35m

Belgrade Nikola Tesla

Wed 7/1

6:55 am-8:30 pm

2 stops20h 35m

$1,337

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sat 3/28

11:40 am-10:15 pm

2 stops28h 35m

Belgrade Nikola Tesla

Sat 4/11

1:40 pm-1:25 pm

1 stop30h 45m

$1,338

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/14

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

Best time to book a flight from St. Louis to Serbia

Have a flexible travel schedule? Discover the best time to fly to Serbia 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 Serbia

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

Currently, November is the cheapest month in which you can book a flight from St. Louis to Serbia (average of $554). Flying from St. Louis to Serbia in December is currently the most expensive (average of $1,321). 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.

Reviews of airlines servicing Serbia

Get insights into the airlines that provide service to Serbia. 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 Serbia. Reviews last updated March 17, 2026.
Read reviews from past customers who have flown Delta,KLM, andUnited Airlines from St. Louis to Serbia. 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.

Food

7.2

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

Entertainment

7.8

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.

Food

7.2

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

Entertainment

7.8

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.

Food

7.2

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

Entertainment

7.8

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.

Food

7.2

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

Entertainment

7.8

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.

Food

7.2

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

Entertainment

7.8

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 Serbia. 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 Serbia?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Serbia. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

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

    A quick flight from St. Louis to Serbia can take about 14h 03m. Turkish Airlines provides one of the quickest options available for as low as $933. Airlines will cover a distance of 5231 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Serbia 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 Serbia?

    Currently, November is the cheapest month in which you can book a flight from St. Louis to Serbia (average of $554). Flying from St. Louis to Serbia in December is currently the most expensive (average of $1,321). 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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Top 4 airlines flying from St. Louis to Serbia

Discover the top 4 airlines that operate flights from St. Louis to Serbia. 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 March 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$588Average$1,049FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$624Average$1,034FlexibilityNo cancel feeOn-time69%
DeltaCheapest$746Average$776FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$747Average$815FlexibilityNo cancel feeOn-time75%

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