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Cheap flights from St. Louis to Serbia from $421

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Serbia departing on 4/1. 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

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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
6:15 am - 12:20 pm
STL
-
BEG
23h 05m
3 stops
Multiple Airlines Logo
1:10 pm - 11:57 pm
BEG
-
STL
17h 47m
2 stops
$765Multiple Airlines
Tue, Apr 21 - Tue, Apr 28
Air Canada Logo
4:05 pm - 12:30 pm
STL
-
BEG
37h 25m
2 stops
Air Canada Logo
6:15 am - 3:25 pm
BEG
-
STL
40h 10m
2 stops
$767Air Canada
Tue, Apr 21 - Tue, Apr 28
Multiple Airlines Logo
4:05 pm - 4:05 pm
STL
-
BEG
41h 00m
2 stops
Multiple Airlines Logo
4:55 pm - 1:25 pm
BEG
-
STL
27h 30m
1 stop
$819Multiple Airlines
Tue, Apr 21 - Tue, Apr 28
Lufthansa Logo
11:37 am - 10:05 pm
STL
-
BEG
27h 28m
2 stops
Lufthansa Logo
4:55 pm - 1:25 pm
BEG
-
STL
27h 30m
1 stop
$853Lufthansa
Tue, Apr 21 - Tue, May 12
Air Canada Logo
4:05 pm - 4:30 pm
STL
-
BEG
41h 25m
2 stops
Air Canada Logo
1:05 pm - 12:06 pm
BEG
-
STL
54h 01m
2 stops
$894Air Canada
Sat, Apr 25 - Sat, May 2
United Airlines Logo
3:15 pm - 4:10 pm
STL
-
BEG
41h 55m
2 stops
United Airlines Logo
4:50 pm - 1:25 pm
BEG
-
STL
27h 35m
1 stop
$924United Airlines
Sat, Apr 25 - Sat, May 2
Turkish Airlines Logo
7:45 am - 3:10 pm
STL
-
BEG
48h 25m
2 stops
Turkish Airlines Logo
4:00 pm - 9:13 pm
BEG
-
STL
36h 13m
2 stops
$933Turkish Airlines
Sun, Apr 5 - Tue, Apr 21
Lufthansa Logo
1:13 pm - 12:30 pm
STL
-
BEG
16h 17m
2 stops
Lufthansa Logo
1:05 pm - 3:38 pm
BEG
-
STL
33h 33m
2 stops
$964Lufthansa
Wed, Jul 22 - Wed, Aug 19
United Airlines Logo
3:10 pm - 4:05 pm
STL
-
BEG
17h 55m
2 stops
United Airlines Logo
6:10 am - 11:37 pm
BEG
-
STL
24h 27m
3 stops
$989United Airlines
Wed, Jul 22 - Wed, Aug 19
Multiple Airlines Logo
6:15 am - 12:20 pm
STL
-
BEG
23h 05m
3 stops
Multiple Airlines Logo
1:10 pm - 11:57 pm
BEG
-
STL
17h 47m
2 stops
$1,018Multiple Airlines
Sun, Apr 5 - Tue, Apr 21

Air Canada flights from St. Louis to Serbia

Our best Air Canada deals on St. Louis to Serbia flight tickets
Air Canada
Apr 21
STL4:05 pmLambert-St Louis
37h 25m
2 stops
BEG12:30 pmBelgrade Nikola Tesla
Apr 28
BEG6:15 amBelgrade Nikola Tesla
40h 10m
2 stops
STL3:25 pmLambert-St Louis
$767
Air Canada
Apr 25
STL4:05 pmLambert-St Louis
41h 25m
2 stops
BEG4:30 pmBelgrade Nikola Tesla
May 2
BEG1:05 pmBelgrade Nikola Tesla
54h 01m
2 stops
STL12:06 pmLambert-St Louis
$894
Air Canada
Mar 28
STL11:25 amLambert-St Louis
18h 20m
3 stops
BEG11:45 amBelgrade Nikola Tesla
Apr 11
BEG6:10 amBelgrade Nikola Tesla
16h 15m
2 stops
STL3:25 pmLambert-St Louis
$1,506

Lufthansa flights from St. Louis to Serbia

Our best Lufthansa deals on St. Louis to Serbia flight tickets
Lufthansa
Apr 21
STL11:37 amLambert-St Louis
27h 28m
2 stops
BEG10:05 pmBelgrade Nikola Tesla
May 12
BEG4:55 pmBelgrade Nikola Tesla
27h 30m
1 stop
STL1:25 pmLambert-St Louis
$853
Lufthansa
Jul 22
STL1:13 pmLambert-St Louis
16h 17m
2 stops
BEG12:30 pmBelgrade Nikola Tesla
Aug 19
BEG1:05 pmBelgrade Nikola Tesla
33h 33m
2 stops
STL3:38 pmLambert-St Louis
$964
Lufthansa
Jul 22
STL3:30 pmLambert-St Louis
14h 15m
1 stop
BEG12:45 pmBelgrade Nikola Tesla
Aug 19
BEG6:10 amBelgrade Nikola Tesla
24h 27m
2 stops
STL11:37 pmLambert-St Louis
$1,024

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 March 12, 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
Quickest round-trip

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Tue 4/21

6:15 am-12:20 pm

3 stops23h 05m

Belgrade Nikola Tesla

Tue 4/28

1:10 pm-11:57 pm

2 stops17h 47m

$765

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Tue 4/21

4:05 pm-12:30 pm

2 stops37h 25m

Belgrade Nikola Tesla

Tue 4/28

6:15 am-3:25 pm

2 stops40h 10m

$767

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Tue 4/21

4:05 pm-4:05 pm

2 stops41h 00m

Belgrade Nikola Tesla

Tue 4/28

4:55 pm-1:25 pm

1 stop27h 30m

$819

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Tue 4/21

11:37 am-10:05 pm

2 stops27h 28m

Belgrade Nikola Tesla

Tue 5/12

4:55 pm-1:25 pm

1 stop27h 30m

$853

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sat 4/25

4:05 pm-4:30 pm

2 stops41h 25m

Belgrade Nikola Tesla

Sat 5/2

1:05 pm-12:06 pm

2 stops54h 01m

$894

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sat 4/25

3:15 pm-4:10 pm

2 stops41h 55m

Belgrade Nikola Tesla

Sat 5/2

4:50 pm-1:25 pm

1 stop27h 35m

$924

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sun 4/5

7:45 am-3:10 pm

2 stops48h 25m

Belgrade Nikola Tesla

Tue 4/21

4:00 pm-9:13 pm

2 stops36h 13m

$933

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 7/22

1:13 pm-12:30 pm

2 stops16h 17m

Belgrade Nikola Tesla

Wed 8/19

1:05 pm-3:38 pm

2 stops33h 33m

$964

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 7/22

3:10 pm-4:05 pm

2 stops17h 55m

Belgrade Nikola Tesla

Wed 8/19

6:10 am-11:37 pm

3 stops24h 27m

$989

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sun 4/5

6:15 am-12:20 pm

3 stops23h 05m

Belgrade Nikola Tesla

Tue 4/21

1:10 pm-11:57 pm

2 stops17h 47m

$1,018

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 November. Flight prices, which tend to average around $630, are often lower during this time because this is during the off-season. If you are unable to visit Serbia during the month of November, then departing from St. Louis during the month January is also very affordable. Most momondo users find prices during this month for around $736.

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 00m

Direct flights

None
The fastest flight from St. Louis to Serbia takes 14h 00m
There are no direct flights from St. Louis to Serbia. There are no popular flight routes from St. Louis to Serbia.
Search flight deals

  • 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
7,843 reviews
Search Lufthansa flights
United AirlinesPriceFrom $624Free CancellationRating
7.4
9,415 reviews
Search United Airlines flights
DeltaPriceFrom $746Free CancellationRating
7.9
8,278 reviews
Search Delta flights
KLMPriceFrom $747Free CancellationRating
7.8
1,470 reviews
Search KLM 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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