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Cheap flights from St. Louis to Belgrade from $559

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 Belgrade departing on 2/25. 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.
United Airlines Logo
11:25 am - 12:50 pm
STL
-
BEG
18h 25m2 stops
United Airlines Logo
6:15 am - 1:55 pm
BEG
-
STL
14h 40m1 stop
$559United Airlines
Wed, Feb 25 - Sun, Mar 1
United Airlines Logo
10:10 am - 12:50 pm
STL
-
BEG
19h 40m2 stops
United Airlines Logo
6:15 am - 3:29 pm
BEG
-
STL
40h 14m2 stops
$568United Airlines
Wed, Feb 25 - Sun, Mar 1
United Airlines Logo
7:41 am - 12:50 pm
STL
-
BEG
22h 09m2 stops
United Airlines Logo
6:15 am - 9:40 pm
BEG
-
STL
22h 25m2 stops
$569United Airlines
Wed, Feb 25 - Sun, Mar 1
Air France Logo
11:51 am - 12:25 pm
STL
-
BEG
17h 34m2 stops
Air France Logo
7:00 am - 6:02 pm
BEG
-
STL
18h 02m2 stops
$718Air France
Mon, Jul 6 - Thu, Aug 13
Delta Logo
12:00 pm - 10:55 pm
STL
-
BEG
27h 55m2 stops
Delta Logo
12:40 pm - 2:38 pm
BEG
-
STL
32h 58m2 stops
$778Delta
Tue, Jul 7 - Wed, Aug 12
United Airlines Logo
3:30 pm - 12:45 pm
STL
-
BEG
14h 15m1 stop
United Airlines Logo
5:10 pm - 8:59 pm
BEG
-
STL
34h 49m2 stops
$800United Airlines
Sun, Jul 5 - Fri, Aug 14
United Airlines Logo
12:10 pm - 11:55 pm
STL
-
BEG
28h 45m2 stops
United Airlines Logo
5:10 pm - 8:59 pm
BEG
-
STL
34h 49m2 stops
$803United Airlines
Sun, Jul 5 - Fri, Aug 14
United Airlines Logo
5:00 am - 4:05 pm
STL
-
BEG
28h 05m2 stops
United Airlines Logo
5:10 pm - 8:59 pm
BEG
-
STL
34h 49m2 stops
$805United Airlines
Wed, Jul 8 - Fri, Aug 14
Lufthansa Logo
6:49 pm - 4:30 pm
STL
-
BEG
14h 41m2 stops
Lufthansa Logo
6:20 am - 1:25 pm
BEG
-
STL
14h 05m1 stop
$806Lufthansa
Tue, Jul 7 - Tue, Aug 11
Lufthansa Logo
3:30 pm - 12:45 pm
STL
-
BEG
14h 15m1 stop
Lufthansa Logo
6:15 am - 3:21 pm
BEG
-
STL
16h 06m2 stops
$811Lufthansa
Wed, Jul 8 - Wed, Aug 12

United Airlines flights from St. Louis to Belgrade

Our best United Airlines deals on St. Louis to Belgrade flight tickets
United Airlines
Feb 25
STL11:25 amLambert-St Louis
18h 25m
2 stops
BEG12:50 pmBelgrade Nikola Tesla
Mar 1
BEG6:15 amBelgrade Nikola Tesla
14h 40m
1 stop
STL1:55 pmLambert-St Louis
$559
United Airlines
Feb 25
STL10:10 amLambert-St Louis
19h 40m
2 stops
BEG12:50 pmBelgrade Nikola Tesla
Mar 1
BEG6:15 amBelgrade Nikola Tesla
40h 14m
2 stops
STL3:29 pmLambert-St Louis
$568
United Airlines
Feb 25
STL7:41 amLambert-St Louis
22h 09m
2 stops
BEG12:50 pmBelgrade Nikola Tesla
Mar 1
BEG6:15 amBelgrade Nikola Tesla
22h 25m
2 stops
STL9:40 pmLambert-St Louis
$569

Delta flights from St. Louis to Belgrade

Our best Delta deals on St. Louis to Belgrade flight tickets
Delta
Jul 7
STL12:00 pmLambert-St Louis
27h 55m
2 stops
BEG10:55 pmBelgrade Nikola Tesla
Aug 12
BEG12:40 pmBelgrade Nikola Tesla
32h 58m
2 stops
STL2:38 pmLambert-St Louis
$778
Delta
Jul 4
STL7:20 amLambert-St Louis
21h 35m
2 stops
BEG11:55 amBelgrade Nikola Tesla
Aug 12
BEG12:40 pmBelgrade Nikola Tesla
32h 58m
2 stops
STL2:38 pmLambert-St Louis
$838

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 January 11, 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

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 2/25

11:25 am-12:50 pm

2 stops18h 25m

Belgrade Nikola Tesla

Sun 3/1

6:15 am-1:55 pm

1 stop14h 40m

$559

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 2/25

10:10 am-12:50 pm

2 stops19h 40m

Belgrade Nikola Tesla

Sun 3/1

6:15 am-3:29 pm

2 stops40h 14m

$568

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 2/25

7:41 am-12:50 pm

2 stops22h 09m

Belgrade Nikola Tesla

Sun 3/1

6:15 am-9:40 pm

2 stops22h 25m

$569

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Mon 7/6

11:51 am-12:25 pm

2 stops17h 34m

Belgrade Nikola Tesla

Thu 8/13

7:00 am-6:02 pm

2 stops18h 02m

$718

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Tue 7/7

12:00 pm-10:55 pm

2 stops27h 55m

Belgrade Nikola Tesla

Wed 8/12

12:40 pm-2:38 pm

2 stops32h 58m

$778

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sun 7/5

3:30 pm-12:45 pm

1 stop14h 15m

Belgrade Nikola Tesla

Fri 8/14

5:10 pm-8:59 pm

2 stops34h 49m

$800

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sun 7/5

12:10 pm-11:55 pm

2 stops28h 45m

Belgrade Nikola Tesla

Fri 8/14

5:10 pm-8:59 pm

2 stops34h 49m

$803

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 7/8

5:00 am-4:05 pm

2 stops28h 05m

Belgrade Nikola Tesla

Fri 8/14

5:10 pm-8:59 pm

2 stops34h 49m

$805

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Tue 7/7

6:49 pm-4:30 pm

2 stops14h 41m

Belgrade Nikola Tesla

Tue 8/11

6:20 am-1:25 pm

1 stop14h 05m

$806

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 7/8

3:30 pm-12:45 pm

1 stop14h 15m

Belgrade Nikola Tesla

Wed 8/12

6:15 am-3:21 pm

2 stops16h 06m

$811

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 February is also very affordable. Most momondo users find prices during this month for around $701.

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

17h 40m

Direct flights

None
The fastest flight from St. Louis to Belgrade takes 17h 40m
There are no direct flights from St. Louis to Belgrade. There are no popular flight routes from St. Louis to Belgrade.
Search flight deals

  • 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 17h 40m, 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 $567Free CancellationRating
6.8
7,710 reviews
Search Lufthansa flights
Air CanadaPriceFrom $574Free CancellationRating
7.1
10,610 reviews
Search Air Canada flights
DeltaPriceFrom $746Free CancellationRating
7.9
8,038 reviews
Search Delta flights
KLMPriceFrom $747Free CancellationRating
7.7
1,435 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?

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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.

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