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Cheap flights from St. Louis to Serbia from $781

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Serbia departing on 10/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Serbia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:10 pm - 12:30 pm
STL
-
BEG
17h 20m
2 stops
Multiple Airlines Logo
6:15 am - 1:45 pm
BEG
-
STL
14h 30m
1 stop
$781Multiple Airlines
Wed, Oct 21 - Fri, Nov 6
Lufthansa Logo
3:30 pm - 4:05 pm
STL
-
BEG
17h 35m
1 stop
Lufthansa Logo
6:15 am - 1:45 pm
BEG
-
STL
14h 30m
1 stop
$791Lufthansa
Wed, Oct 21 - Fri, Nov 6
Lufthansa Logo
3:30 pm - 4:05 pm
STL
-
BEG
17h 35m
1 stop
Lufthansa Logo
6:15 am - 1:45 pm
BEG
-
STL
14h 30m
1 stop
$794Lufthansa
Wed, Oct 21 - Fri, Nov 6
Multiple Airlines Logo
12:10 pm - 4:30 pm
STL
-
BEG
21h 20m
2 stops
Multiple Airlines Logo
9:40 am - 3:30 pm
BEG
-
STL
36h 50m
2 stops
$801Multiple Airlines
Wed, Oct 21 - Fri, Nov 6
Delta Logo
12:30 pm - 11:55 am
STL
-
BEG
16h 25m
2 stops
Delta Logo
6:00 am - 11:39 pm
BEG
-
STL
24h 39m
2 stops
$803Delta
Wed, Oct 21 - Fri, Nov 6
Multiple Airlines Logo
2:40 pm - 4:30 pm
STL
-
BEG
18h 50m
2 stops
Multiple Airlines Logo
6:15 am - 1:45 pm
BEG
-
STL
14h 30m
1 stop
$808Multiple Airlines
Tue, Oct 20 - Fri, Nov 6
Delta Logo
5:30 pm - 12:55 pm
STL
-
BEG
36h 25m
2 stops
Delta Logo
12:35 pm - 4:54 pm
BEG
-
STL
35h 19m
2 stops
$809Delta
Sat, Oct 24 - Thu, Nov 5
United Airlines Logo
3:30 pm - 12:45 pm
STL
-
BEG
14h 15m
1 stop
United Airlines Logo
6:15 am - 1:45 pm
BEG
-
STL
14h 30m
1 stop
$810United Airlines
Sun, Oct 18 - Fri, Nov 6
United Airlines Logo
12:10 pm - 12:45 pm
STL
-
BEG
17h 35m
2 stops
United Airlines Logo
6:15 am - 1:45 pm
BEG
-
STL
14h 30m
1 stop
$813United Airlines
Sun, Oct 18 - Fri, Nov 6
Lufthansa Logo
3:30 pm - 4:10 pm
STL
-
BEG
17h 40m
1 stop
Lufthansa Logo
1:30 pm - 11:25 pm
BEG
-
STL
16h 55m
2 stops
$815Lufthansa
Sun, Oct 18 - Tue, Nov 3

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Lufthansa flights from St. Louis to Serbia

Our best Lufthansa deals on St. Louis to Serbia flight tickets
Lufthansa
Oct 21
STL3:30 pmLambert-St Louis
17h 35m
1 stop
BEG4:05 pmBelgrade Nikola Tesla
Nov 6
BEG6:15 amBelgrade Nikola Tesla
14h 30m
1 stop
STL1:45 pmLambert-St Louis
$791
Lufthansa
Oct 21
STL3:30 pmLambert-St Louis
17h 35m
1 stop
BEG4:05 pmBelgrade Nikola Tesla
Nov 6
BEG6:15 amBelgrade Nikola Tesla
14h 30m
1 stop
STL1:45 pmLambert-St Louis
$794
Lufthansa
Oct 18
STL3:30 pmLambert-St Louis
17h 40m
1 stop
BEG4:10 pmBelgrade Nikola Tesla
Nov 3
BEG1:30 pmBelgrade Nikola Tesla
16h 55m
2 stops
STL11:25 pmLambert-St Louis
$815

United Airlines flights from St. Louis to Serbia

Our best United Airlines deals on St. Louis to Serbia flight tickets
United Airlines
Oct 18
STL3:30 pmLambert-St Louis
14h 15m
1 stop
BEG12:45 pmBelgrade Nikola Tesla
Nov 6
BEG6:15 amBelgrade Nikola Tesla
14h 30m
1 stop
STL1:45 pmLambert-St Louis
$810
United Airlines
Oct 18
STL12:10 pmLambert-St Louis
17h 35m
2 stops
BEG12:45 pmBelgrade Nikola Tesla
Nov 6
BEG6:15 amBelgrade Nikola Tesla
14h 30m
1 stop
STL1:45 pmLambert-St Louis
$813
United Airlines
Oct 18
STL3:30 pmLambert-St Louis
17h 40m
1 stop
BEG4:10 pmBelgrade Nikola Tesla
Nov 5
BEG6:15 amBelgrade Nikola Tesla
40h 15m
2 stops
STL3:30 pmLambert-St Louis
$818

momondo 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, momondo users made 832,500 searches. Data last updated June 14, 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 10/21

12:10 pm-12:30 pm

2 stops17h 20m

Belgrade Nikola Tesla

Fri 11/6

6:15 am-1:45 pm

1 stop14h 30m

$781

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 10/21

3:30 pm-4:05 pm

1 stop17h 35m

Belgrade Nikola Tesla

Fri 11/6

6:15 am-1:45 pm

1 stop14h 30m

$791

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 10/21

3:30 pm-4:05 pm

1 stop17h 35m

Belgrade Nikola Tesla

Fri 11/6

6:15 am-1:45 pm

1 stop14h 30m

$794

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 10/21

12:10 pm-4:30 pm

2 stops21h 20m

Belgrade Nikola Tesla

Fri 11/6

9:40 am-3:30 pm

2 stops36h 50m

$801

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 10/21

12:30 pm-11:55 am

2 stops16h 25m

Belgrade Nikola Tesla

Fri 11/6

6:00 am-11:39 pm

2 stops24h 39m

$803

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Tue 10/20

2:40 pm-4:30 pm

2 stops18h 50m

Belgrade Nikola Tesla

Fri 11/6

6:15 am-1:45 pm

1 stop14h 30m

$808

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sat 10/24

5:30 pm-12:55 pm

2 stops36h 25m

Belgrade Nikola Tesla

Thu 11/5

12:35 pm-4:54 pm

2 stops35h 19m

$809
Quickest round-trip

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sun 10/18

3:30 pm-12:45 pm

1 stop14h 15m

Belgrade Nikola Tesla

Fri 11/6

6:15 am-1:45 pm

1 stop14h 30m

$810

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sun 10/18

12:10 pm-12:45 pm

2 stops17h 35m

Belgrade Nikola Tesla

Fri 11/6

6:15 am-1:45 pm

1 stop14h 30m

$813

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sun 10/18

3:30 pm-4:10 pm

1 stop17h 40m

Belgrade Nikola Tesla

Tue 11/3

1:30 pm-11:25 pm

2 stops16h 55m

$815

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Serbia from

How to get the cheapest flight ticket from St. Louis to Serbia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Serbia?

The cheapest month to fly to Serbia from St. Louis is in January. Flight prices, which tend to average around $551, are often lower during this time because this is during the off-season. If you are unable to visit Serbia during the month of January, then departing from St. Louis during the month November is also very affordable. Most momondo users find prices during this month for around $554.

Can stopping save me money on St. Louis to Serbia flights?

You could potentially save up to 55% on your flight if you consider stops on a St. Louis to Serbia flight.

Cheap St. Louis to Serbia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Serbia

Fastest flight time

14h 15m

Direct flights

None
The fastest flight from St. Louis to Serbia takes 14h 15m
There are no direct flights from St. Louis to Serbia. There are no popular flight routes from St. Louis to Serbia.
Search flight deals

Frequently asked questions about flying from St. Louis to Serbia

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Serbia?

    Prices for flights from Lambert-St Louis Airport to Serbia were last updated today.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Serbia?

  • How old do you have to be to fly from Lambert-St Louis Airport to Serbia?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Serbia.

  • What documentation or ID do you need to fly to Serbia?

    The necessary travel and health documents for your Serbia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from St. Louis to Serbia

Compare and see reviews for airlines that fly from St. Louis to Serbia with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $602Free CancellationRating
6.8
8,060 reviews
Search Lufthansa flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Serbia?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from St. Louis to Serbia for you.

Can I find flights from St. Louis to Serbia with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for St. Louis to Serbia flights to just show those with flexible booking policies.

How can momondo help me find flights from St. Louis to Serbia?

momondo provides multiple filters to help you find the best flight to Serbia from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from St. Louis to Serbia right now. Can momondo alert me if prices change?

Yes. momondo can track prices for St. Louis to Serbia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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