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Cheap flights from St. Louis to Belgrade from $544

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 1/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
Lufthansa Logo
11:22 am - 12:45 pmSTL-BEG
18h 23m2 stops
Lufthansa Logo
1:30 pm - 11:59 pmBEG-STL
17h 29m2 stops
$544Lufthansa
Find Deal
Wed, Jan 28 - Sun, Feb 1
Lufthansa Logo
3:50 pm - 12:50 pmSTL-BEG
14h 00m1 stop
Lufthansa Logo
1:30 pm - 11:59 pmBEG-STL
17h 29m2 stops
$550Lufthansa
Find Deal
Wed, Jan 28 - Sun, Feb 1
Lufthansa Logo
12:44 pm - 5:05 pmSTL-BEG
21h 21m2 stops
Lufthansa Logo
1:30 pm - 11:59 pmBEG-STL
17h 29m2 stops
$560Lufthansa
Find Deal
Wed, Jan 28 - Sun, Feb 1
KLM Logo
10:19 am - 11:55 amSTL-BEG
18h 36m2 stops
KLM Logo
6:05 am - 8:45 pmBEG-STL
21h 40m2 stops
$561KLM
Find Deal
Sat, Jan 31 - Sat, Feb 28
United Airlines Logo
3:50 pm - 12:50 pmSTL-BEG
14h 00m1 stop
United Airlines Logo
6:15 am - 10:00 pmBEG-STL
22h 45m2 stops
$575United Airlines
Find Deal
Wed, Jan 28 - Sun, Feb 1
Lufthansa Logo
3:50 pm - 12:50 pmSTL-BEG
14h 00m1 stop
Lufthansa Logo
1:30 pm - 11:59 pmBEG-STL
17h 29m2 stops
$665Lufthansa
Find Deal
Wed, Jan 28 - Sun, Feb 1
Multiple Airlines Logo
4:05 pm - 12:50 pmSTL-BEG
37h 45m2 stops
Multiple Airlines Logo
1:50 pm - 1:55 pmBEG-STL
31h 05m1 stop
$739Multiple Airlines
Find Deal
Sat, Jan 31 - Sat, Feb 28
Multiple Airlines Logo
4:05 pm - 12:50 pmSTL-BEG
37h 45m2 stops
Multiple Airlines Logo
6:25 am - 7:19 pmBEG-STL
19h 54m3 stops
$861Multiple Airlines
Find Deal
Sat, Jan 31 - Sat, Feb 28
Air Canada Logo
8:05 am - 10:30 amSTL-BEG
19h 25m3 stops
Air Canada Logo
6:25 am - 7:19 pmBEG-STL
19h 54m3 stops
$975Air Canada
Find Deal
Sat, Jan 31 - Sat, Feb 28
Air Canada Logo
1:30 pm - 4:25 pmSTL-BEG
19h 55m2 stops
Air Canada Logo
1:05 pm - 6:25 pmBEG-STL
36h 20m2 stops
$1,105Air Canada
Find Deal
Thu, May 21 - Wed, Jun 3

United Airlines flights from St. Louis to Belgrade

Our best United Airlines deals on St. Louis to Belgrade flight tickets
United Airlines
Jan 28
STL3:50 pmLambert-St Louis
14h 00m
1 stop
BEG12:50 pmBelgrade Nikola Tesla
Feb 1
BEG6:15 amBelgrade Nikola Tesla
22h 45m
2 stops
STL10:00 pmLambert-St Louis
$575
Find similar
United Airlines
May 22
STL3:30 pmLambert-St Louis
14h 15m
1 stop
BEG12:45 pmBelgrade Nikola Tesla
Jun 3
BEG6:10 amBelgrade Nikola Tesla
14h 20m
1 stop
STL1:30 pmLambert-St Louis
$1,380
Find similar

Air Canada flights from St. Louis to Belgrade

Our best Air Canada deals on St. Louis to Belgrade flight tickets
Air Canada
Jan 31
STL8:05 amLambert-St Louis
19h 25m
3 stops
BEG10:30 amBelgrade Nikola Tesla
Feb 28
BEG6:25 amBelgrade Nikola Tesla
19h 54m
3 stops
STL7:19 pmLambert-St Louis
$975
Find similar
Air Canada
May 21
STL1:30 pmLambert-St Louis
19h 55m
2 stops
BEG4:25 pmBelgrade Nikola Tesla
Jun 3
BEG1:05 pmBelgrade Nikola Tesla
36h 20m
2 stops
STL6:25 pmLambert-St Louis
$1,105
Find similar
Air Canada
May 21
STL1:30 pmLambert-St Louis
19h 55m
2 stops
BEG4:25 pmBelgrade Nikola Tesla
Jun 1
BEG1:05 pmBelgrade Nikola Tesla
37h 25m
2 stops
STL7:30 pmLambert-St Louis
$1,122
Find similar

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 November 26, 2025.
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 1/28

11:22 am-12:45 pm

2 stops18h 23m

Belgrade Nikola Tesla

Sun 2/1

1:30 pm-11:59 pm

2 stops17h 29m

$544

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 1/28

3:50 pm-12:50 pm

1 stop14h 00m

Belgrade Nikola Tesla

Sun 2/1

1:30 pm-11:59 pm

2 stops17h 29m

$550

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 1/28

12:44 pm-5:05 pm

2 stops21h 21m

Belgrade Nikola Tesla

Sun 2/1

1:30 pm-11:59 pm

2 stops17h 29m

$560

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sat 1/31

10:19 am-11:55 am

2 stops18h 36m

Belgrade Nikola Tesla

Sat 2/28

6:05 am-8:45 pm

2 stops21h 40m

$561

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 1/28

3:50 pm-12:50 pm

1 stop14h 00m

Belgrade Nikola Tesla

Sun 2/1

6:15 am-10:00 pm

2 stops22h 45m

$575

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 1/28

3:50 pm-12:50 pm

1 stop14h 00m

Belgrade Nikola Tesla

Sun 2/1

1:30 pm-11:59 pm

2 stops17h 29m

$665

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sat 1/31

4:05 pm-12:50 pm

2 stops37h 45m

Belgrade Nikola Tesla

Sat 2/28

1:50 pm-1:55 pm

1 stop31h 05m

$739

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sat 1/31

4:05 pm-12:50 pm

2 stops37h 45m

Belgrade Nikola Tesla

Sat 2/28

6:25 am-7:19 pm

3 stops19h 54m

$861

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sat 1/31

8:05 am-10:30 am

3 stops19h 25m

Belgrade Nikola Tesla

Sat 2/28

6:25 am-7:19 pm

3 stops19h 54m

$975

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Thu 5/21

1:30 pm-4:25 pm

2 stops19h 55m

Belgrade Nikola Tesla

Wed 6/3

1:05 pm-6:25 pm

2 stops36h 20m

$1,105

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 $665.

What is the cheapest day to depart on your flight to Belgrade?

On average, the least expensive day to fly to Belgrade from St. Louis is on a Monday. momondo users have found tickets for Monday departures for as low as $894. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $1,090. These prices are subject to change though, so be sure to set up a Price Alert for flights to Belgrade.

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

18h 23m

Direct flights

None
The fastest flight from St. Louis to Belgrade takes 18h 23m
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 13h 58m, 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
7,594 reviews
Search Lufthansa flights
Air CanadaPriceFrom $574Free CancellationRating
7.1
10,476 reviews
Search Air Canada flights
DeltaPriceFrom $696Free CancellationRating
7.9
7,998 reviews
Search Delta flights
KLMPriceFrom $747Free CancellationRating
7.7
1,422 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?

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