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Cheap flights from St. Louis to Belgrade from $663

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 Belgrade departing on 5/15. 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
0 bags

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Find the cheapest flights from St. Louis to Belgrade

Cheap round-trip flights

Enter your travel dates to find the best prices.
Turkish Airlines Logo
7:45 am - 7:35 pm
STL
-
BEG
28h 50m
2 stops
Turkish Airlines Logo
4:00 pm - 9:18 pm
BEG
-
STL
36h 18m
2 stops
$1,220Turkish Airlines
Wed, Apr 29 - Fri, May 22
United Airlines Logo
3:10 pm - 4:05 pm
STL
-
BEG
17h 55m
2 stops
United Airlines Logo
5:50 am - 2:08 pm
BEG
-
STL
39h 18m
2 stops
$1,221United Airlines
Wed, Jul 22 - Fri, Aug 14
Multiple Airlines Logo
6:00 am - 8:25 am
STL
-
BEG
19h 25m
2 stops
Multiple Airlines Logo
8:25 pm - 4:26 pm
BEG
-
STL
27h 01m
2 stops
$1,251Multiple Airlines
Wed, Sep 23 - Mon, Oct 5
United Airlines Logo
12:10 pm - 4:05 pm
STL
-
BEG
20h 55m
2 stops
United Airlines Logo
4:55 pm - 1:25 pm
BEG
-
STL
27h 30m
1 stop
$1,299United Airlines
Wed, Sep 23 - Mon, Oct 5
Multiple Airlines Logo
1:05 pm - 10:35 pm
STL
-
BEG
26h 30m
2 stops
Multiple Airlines Logo
6:40 am - 8:25 pm
BEG
-
STL
20h 45m
2 stops
$1,302Multiple Airlines
Tue, May 26 - Tue, Jun 2
Multiple Airlines Logo
7:05 am - 10:35 pm
STL
-
BEG
32h 30m
3 stops
Multiple Airlines Logo
6:40 am - 8:25 pm
BEG
-
STL
20h 45m
2 stops
$1,308Multiple Airlines
Tue, May 26 - Tue, Jun 2
Multiple Airlines Logo
7:05 am - 10:35 pm
STL
-
BEG
32h 30m
3 stops
Multiple Airlines Logo
6:40 am - 8:25 pm
BEG
-
STL
20h 45m
3 stops
$1,312Multiple Airlines
Tue, May 26 - Tue, Jun 2
Air Serbia Logo
1:45 pm - 9:20 am
STL
-
BEG
12h 35m
1 stop
Air Serbia Logo
10:35 am - 11:54 pm
BEG
-
STL
20h 19m
1 stop
$1,342Air Serbia
Wed, Jun 3 - Wed, Jul 1
Lufthansa Logo
3:30 pm - 12:45 pm
STL
-
BEG
14h 15m
1 stop
Lufthansa Logo
4:55 pm - 1:25 pm
BEG
-
STL
27h 30m
1 stop
$1,344Lufthansa
Wed, Sep 23 - Mon, Oct 5
Multiple Airlines Logo
2:40 pm - 1:10 am
STL
-
BEG
27h 30m
3 stops
Multiple Airlines Logo
1:20 pm - 2:02 pm
BEG
-
STL
31h 42m
2 stops
$1,434Multiple Airlines
Wed, Jul 22 - Fri, Aug 14

United Airlines flights from St. Louis to Belgrade

Our best United Airlines deals on St. Louis to Belgrade flight tickets
United Airlines
Jul 22
STL3:10 pmLambert-St Louis
17h 55m
2 stops
BEG4:05 pmBelgrade Nikola Tesla
Aug 14
BEG5:50 amBelgrade Nikola Tesla
39h 18m
2 stops
STL2:08 pmLambert-St Louis
$1,221
United Airlines
Sep 23
STL12:10 pmLambert-St Louis
20h 55m
2 stops
BEG4:05 pmBelgrade Nikola Tesla
Oct 5
BEG4:55 pmBelgrade Nikola Tesla
27h 30m
1 stop
STL1:25 pmLambert-St Louis
$1,299
United Airlines
Jul 22
STL3:30 pmLambert-St Louis
14h 15m
1 stop
BEG12:45 pmBelgrade Nikola Tesla
Aug 14
BEG5:50 amBelgrade Nikola Tesla
18h 59m
2 stops
STL5:49 pmLambert-St Louis
$1,655

Turkish Airlines flights from St. Louis to Belgrade

Our best Turkish Airlines deals on St. Louis to Belgrade flight tickets
Turkish Airlines
Apr 29
STL7:45 amLambert-St Louis
28h 50m
2 stops
BEG7:35 pmBelgrade Nikola Tesla
May 22
BEG4:00 pmBelgrade Nikola Tesla
36h 18m
2 stops
STL9:18 pmLambert-St Louis
$1,220
Turkish Airlines
Jun 2
STL6:00 amLambert-St Louis
19h 25m
2 stops
BEG8:25 amBelgrade Nikola Tesla
Jul 4
BEG4:00 pmBelgrade Nikola Tesla
36h 16m
2 stops
STL9:16 pmLambert-St Louis
$1,683
Turkish Airlines
May 31
STL6:00 amLambert-St Louis
30h 35m
2 stops
BEG7:35 pmBelgrade Nikola Tesla
Jul 2
BEG4:00 pmBelgrade Nikola Tesla
36h 16m
2 stops
STL9:16 pmLambert-St Louis
$1,690

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Belgrade 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 April 12, 2026.
Use the filters below to find and compare flights from St. Louis to Belgrade 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

7:45 am-7:35 pm

2 stops28h 50m

Belgrade Nikola Tesla

Fri 5/22

4:00 pm-9:18 pm

2 stops36h 18m

$1,220

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 7/22

3:10 pm-4:05 pm

2 stops17h 55m

Belgrade Nikola Tesla

Fri 8/14

5:50 am-2:08 pm

2 stops39h 18m

$1,221

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 9/23

6:00 am-8:25 am

2 stops19h 25m

Belgrade Nikola Tesla

Mon 10/5

8:25 pm-4:26 pm

2 stops27h 01m

$1,251

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 9/23

12:10 pm-4:05 pm

2 stops20h 55m

Belgrade Nikola Tesla

Mon 10/5

4:55 pm-1:25 pm

1 stop27h 30m

$1,299

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Tue 5/26

1:05 pm-10:35 pm

2 stops26h 30m

Belgrade Nikola Tesla

Tue 6/2

6:40 am-8:25 pm

2 stops20h 45m

$1,302

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Tue 5/26

7:05 am-10:35 pm

3 stops32h 30m

Belgrade Nikola Tesla

Tue 6/2

6:40 am-8:25 pm

2 stops20h 45m

$1,308

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Tue 5/26

7:05 am-10:35 pm

3 stops32h 30m

Belgrade Nikola Tesla

Tue 6/2

6:40 am-8:25 pm

3 stops20h 45m

$1,312
Quickest round-trip

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 6/3

1:45 pm-9:20 am

1 stop12h 35m

Belgrade Nikola Tesla

Wed 7/1

10:35 am-11:54 pm

1 stop20h 19m

$1,342

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 9/23

3:30 pm-12:45 pm

1 stop14h 15m

Belgrade Nikola Tesla

Mon 10/5

4:55 pm-1:25 pm

1 stop27h 30m

$1,344

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 7/22

2:40 pm-1:10 am

3 stops27h 30m

Belgrade Nikola Tesla

Fri 8/14

1:20 pm-2:02 pm

2 stops31h 42m

$1,434

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to Belgrade from

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

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 typical price of a round-trip flight between St. Louis and Belgrade?

What is the cheapest month to fly to Belgrade?

The month of November is, on average, the cheapest month to fly to Belgrade from St. Louis, with most prices found around $630. If you are unable to visit Belgrade 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.

When to book flights from St. Louis to Belgrade

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Belgrade according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Belgrade (STL to BEG) flight deals and tips

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

Fastest flight time

19h 25m

Direct flights

None
The fastest flight from St. Louis to Belgrade takes 19h 25m
There are no direct flights from St. Louis to Belgrade. There are no popular flight routes from St. Louis to Belgrade.
Search flight deals

Frequently asked questions about flying from St. Louis to Belgrade

  • How far is Lambert-St Louis to Belgrade Nikola Tesla by plane?

    There are 5237.0 mi between Lambert-St Louis and Belgrade Nikola Tesla. Flights usually cover this in 19h 25m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Lambert-St Louis Airport to Belgrade Nikola Tesla Airport are refreshed on a daily basis.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Belgrade Nikola Tesla Airport.

  • What documentation or ID do you need to fly to Belgrade Nikola Tesla Airport?

    The travel and health documents required for your trip to Belgrade Nikola Tesla Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Belgrade Nikola Tesla Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from St. Louis to Belgrade?

Best airlines flying from St. Louis to Belgrade

Compare and see reviews for airlines that fly from St. Louis to Belgrade with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $602Free CancellationRating
6.8
7,913 reviews
Search Lufthansa flights
United AirlinesPriceFrom $624Free CancellationRating
7.4
9,574 reviews
Search United Airlines flights
DeltaPriceFrom $746Free CancellationRating
7.9
8,408 reviews
Search Delta flights
KLMPriceFrom $747Free CancellationRating
7.8
1,495 reviews
Search KLM flights

Traveling to a place near Belgrade?

Book flights to Belgrade if you plan to visit one of these locations
Novi Sad
Subotica

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from St. Louis to Belgrade. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Belgrade from St. Louis which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential St. Louis to Belgrade flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of St. Louis to Belgrade flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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