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$582+ Cheap flights from St. Louis (STL) to Serbia

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BEG
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap 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 September 15, 2025.

Round-trip from

$582
(Flighttix)

Popular in

June

Cheapest in

February

Average price

$787
From Lambert-St Louis to Serbia
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($132 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find 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 September 15, 2025.

This Flighttix deal was found by Cheapflights users on 9/13. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/284:05 pmSTL - BEG
2 stops14h 40mMultiple Airlines
Tue 11/46:15 pmBEG - STL
2 stops36h 29mMultiple Airlines
Deal found 9/13$582
This Gotogate deal was found by Cheapflights users on 9/14. 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 10/199:15 amSTL - BEG
2 stops20h 00mAir Canada
Tue 11/41:50 pmBEG - STL
2 stops32h 39mAir Canada
Deal found 9/14$586
This Flighttix deal was found by Cheapflights users on 9/14. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/193:30 pmSTL - BEG
1 stop14h 40mUnited Airlines
Tue 11/46:10 amBEG - STL
2 stops24h 34mUnited Airlines
Deal found 9/14$589
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/812:25 pmSTL - BEG
2 stops20h 30mLufthansa
Wed 10/156:05 amBEG - STL
2 stops16h 39mLufthansa
Deal found 9/13$648
This Gotogate deal was found by Cheapflights users on 9/13. 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.
Wed 10/81:30 pmSTL - BEG
2 stops19h 25mMultiple Airlines
Wed 10/156:05 amBEG - STL
2 stops16h 39mMultiple Airlines
Deal found 9/13$649
This United Airlines deal was found by Cheapflights users on 9/14. 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 12/310:00 amSTL - BEG
2 stops19h 50mUnited Airlines
Sun 12/76:15 amBEG - STL
1 stop14h 40mUnited Airlines
Deal found 9/14$656
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/121:30 pmSTL - BEG
2 stops16h 40mUnited Airlines
Sun 10/196:10 amBEG - STL
2 stops35h 39mUnited Airlines
Deal found 9/14$722

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 September 15, 2025.
Use the filters below to find and compare flights from St. Louis to Serbia that are best for you.

Fly from

St. Louis

Fly to

Serbia

Route

Depart

Return

Price

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Tue 10/28

4:05 pm-12:45 pm

2 stops14h 40m

Belgrade Nikola Tesla

Tue 11/4

6:15 pm-11:44 pm

2 stops36h 29m

$582

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sun 10/19

9:15 am-12:15 pm

2 stops20h 00m

Belgrade Nikola Tesla

Tue 11/4

1:50 pm-3:29 pm

2 stops32h 39m

$586

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sun 10/19

3:30 pm-1:10 pm

1 stop14h 40m

Belgrade Nikola Tesla

Tue 11/4

6:10 am-11:44 pm

2 stops24h 34m

$589

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 10/8

12:25 pm-3:55 pm

2 stops20h 30m

Belgrade Nikola Tesla

Wed 10/15

6:05 am-3:44 pm

2 stops16h 39m

$648

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 10/8

1:30 pm-3:55 pm

2 stops19h 25m

Belgrade Nikola Tesla

Wed 10/15

6:05 am-3:44 pm

2 stops16h 39m

$649

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 12/3

6:30 am-12:50 pm

2 stops23h 20m

Belgrade Nikola Tesla

Sun 12/7

6:15 am-1:55 pm

1 stop14h 40m

$656

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

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
No data available for this route at this time. Please check back soon.

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 September 15, 2025.
Read reviews from past customers who have flown Delta, KLM, and Air Canada 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.
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

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
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

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
1,385 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

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
10,000 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

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
7,407 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

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 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 40m. Air Canada provides one of the quickest options available for as low as $589. 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, January is the cheapest month in which you can book a flight from St. Louis to Serbia (average of $688). Flying from St. Louis to Serbia in June is currently the most expensive (average of $1,173). 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 Serbia

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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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$574Average$1,057FlexibilityNo cancel feeOn-time67%
DeltaCheapest$696Average$776FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$710Average$1,118FlexibilityNo cancel feeOn-time76%
KLMCheapest$747Average$865FlexibilityNo cancel feeOn-time75%

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