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Cheap flights from St. Louis to Belgrade 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 Belgrade 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 Belgrade

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
$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
Multiple Airlines Logo
4:15 pm - 1:45 pm
STL
-
BEG
14h 30m
2 stops
Multiple Airlines Logo
1:30 pm - 3:30 pm
BEG
-
STL
57h 00m
2 stops
$816Multiple Airlines
Tue, Nov 3 - Mon, Dec 7
Multiple Airlines Logo
6:30 am - 12:50 pm
STL
-
BEG
23h 20m
3 stops
Multiple Airlines Logo
1:30 pm - 3:30 pm
BEG
-
STL
57h 00m
2 stops
$821Multiple Airlines
Tue, Nov 3 - Mon, Dec 7
Multiple Airlines Logo
12:10 pm - 12:20 pm
STL
-
BEG
17h 10m
2 stops
Multiple Airlines Logo
6:15 am - 1:45 pm
BEG
-
STL
14h 30m
1 stop
$830Multiple Airlines
Thu, Oct 22 - Fri, Nov 6
Multiple Airlines Logo
12:59 pm - 4:30 pm
STL
-
BEG
20h 31m
2 stops
Multiple Airlines Logo
6:15 am - 6:41 pm
BEG
-
STL
43h 26m
2 stops
$839Multiple Airlines
Wed, Sep 9 - Wed, Sep 30
Lufthansa Logo
12:59 pm - 12:30 pm
STL
-
BEG
16h 31m
2 stops
Lufthansa Logo
1:05 pm - 9:21 pm
BEG
-
STL
15h 16m
2 stops
$841Lufthansa
Wed, Sep 9 - Wed, Sep 30
Air Canada Logo
8:55 am - 4:30 pm
STL
-
BEG
24h 35m
2 stops
Air Canada Logo
1:05 pm - 6:41 pm
BEG
-
STL
36h 36m
2 stops
$849Air Canada
Wed, Sep 9 - Wed, Sep 30
Air Canada Logo
8:55 am - 12:30 pm
STL
-
BEG
20h 35m
2 stops
Air Canada Logo
1:05 pm - 6:41 pm
BEG
-
STL
36h 36m
2 stops
$850Air Canada
Wed, Sep 9 - Wed, Sep 30

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Air Canada flights from St. Louis to Belgrade

Our best Air Canada deals on St. Louis to Belgrade flight tickets
Air Canada
Sep 9
STL8:55 amLambert-St Louis
24h 35m
2 stops
BEG4:30 pmBelgrade Nikola Tesla
Sep 30
BEG1:05 pmBelgrade Nikola Tesla
36h 36m
2 stops
STL6:41 pmLambert-St Louis
$849
Air Canada
Sep 9
STL8:55 amLambert-St Louis
20h 35m
2 stops
BEG12:30 pmBelgrade Nikola Tesla
Sep 30
BEG1:05 pmBelgrade Nikola Tesla
36h 36m
2 stops
STL6:41 pmLambert-St Louis
$850

United Airlines flights from St. Louis to Belgrade

Our best United Airlines deals on St. Louis to Belgrade flight tickets
United Airlines
Oct 22
STL7:30 amLambert-St Louis
21h 55m
3 stops
BEG12:25 pmBelgrade Nikola Tesla
Nov 6
BEG6:15 amBelgrade Nikola Tesla
16h 15m
2 stops
STL3:30 pmLambert-St Louis
$975
United Airlines
Jul 22
STL11:25 amLambert-St Louis
18h 20m
2 stops
BEG12:45 pmBelgrade Nikola Tesla
Jul 29
BEG6:10 amBelgrade Nikola Tesla
16h 36m
2 stops
STL3:46 pmLambert-St Louis
$978
United Airlines
Jul 25
STL3:22 pmLambert-St Louis
38h 23m
2 stops
BEG12:45 pmBelgrade Nikola Tesla
Aug 1
BEG1:40 pmBelgrade Nikola Tesla
33h 06m
2 stops
STL3:46 pmLambert-St Louis
$1,161

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 June 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

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

$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

Tue 11/3

4:15 pm-1:45 pm

2 stops14h 30m

Belgrade Nikola Tesla

Mon 12/7

1:30 pm-3:30 pm

2 stops57h 00m

$816

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Tue 11/3

6:30 am-12:50 pm

3 stops23h 20m

Belgrade Nikola Tesla

Mon 12/7

1:30 pm-3:30 pm

2 stops57h 00m

$821
Quickest round-trip

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Thu 10/22

12:10 pm-12:20 pm

2 stops17h 10m

Belgrade Nikola Tesla

Fri 11/6

6:15 am-1:45 pm

1 stop14h 30m

$830

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 9/9

12:59 pm-4:30 pm

2 stops20h 31m

Belgrade Nikola Tesla

Wed 9/30

6:15 am-6:41 pm

2 stops43h 26m

$839

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 9/9

12:59 pm-12:30 pm

2 stops16h 31m

Belgrade Nikola Tesla

Wed 9/30

1:05 pm-9:21 pm

2 stops15h 16m

$841

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 9/9

8:55 am-4:30 pm

2 stops24h 35m

Belgrade Nikola Tesla

Wed 9/30

1:05 pm-6:41 pm

2 stops36h 36m

$849

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 9/9

8:55 am-12:30 pm

2 stops20h 35m

Belgrade Nikola Tesla

Wed 9/30

1:05 pm-6:41 pm

2 stops36h 36m

$850

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 January is also very affordable. Most momondo users find prices during this month for around $736.

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

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

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

14h 30m

Direct flights

None
The fastest flight from St. Louis to Belgrade takes 14h 30m
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 14h 30m, 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
8,052 reviews
Search Lufthansa flights

Traveling to a place near Belgrade?

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Subotica

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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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