What are the cheapest airlines flying from St. Louis to Belgrade round-trip?

KLM, at $845, was found to be the cheapest airline from St. Louis to Belgrade.Alternate airlines to your destination round-trip include Lufthansa and Air Canada. KLM is 13% cheaper than the average price of flights available within the next 90 days to this destination.

What is the cheapest day to fly from St. Louis to Belgrade?

Travelers seeking maximum savings on their St. Louis to Belgrade flight should consider departing on Monday afternoons when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from St. Louis to Belgrade?

Before booking your flight from St. Louis to Belgrade check out the most popular airlines for this route: Air Canada, Delta or Lufthansa.

What is the cheapest day to fly round-trip from St. Louis to Belgrade?

It’s generally more expensive to depart on a Sunday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

What is the cheapest month to fly from St. Louis to Belgrade?

Our data shows that February tends to be the cheapest month to fly to Belgrade from St. Louis. Users have commonly found prices around $971 for the month, but tickets can be as low as $700. Due to multiple factors, prepare for potentially higher prices in June.

What is the cheapest time of day to fly from STL to BEG?

One of the essential ways to save on airfare from St. Louis to Belgrade is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 9% on airfare.

Most accurate provider : When it comes to deals on St. Louis-Belgrade flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Belgrade flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Belgrade flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on St. Louis-Belgrade flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Belgrade flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from St. Louis to Belgrade that include hotel bookings?

Yes. In addition to deals on St. Louis to Belgrade flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from St. Louis to Belgrade?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Belgrade.

Can I find deals for business class flights from St. Louis to Belgrade?

Yes. Cheapflights offers flight deals from St. Louis to Belgrade by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$387+ Flights from St. Louis to Belgrade

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Cheap flight deals from St. Louis to Belgrade

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$845 (KLM)
One-way from	$387 (Kiwi.com)
Popular in	June
Cheapest in	February
Average price	$842

Provider with most accurate pricing for Lambert-St Louis-Belgrade Nikola Tesla flight deals.

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Provider most trusted by Cheapflights users for Lambert-St Louis-Belgrade Nikola Tesla flights.

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From Lambert-St Louis to Belgrade Nikola Tesla

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One-way flight from Lambert-St Louis to Belgrade Nikola Tesla

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Highest demand for flights based on searches. 17% potential increase in price ($212 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($33 potential savings vs. average RT price).

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Average for round-trip flights in March 2025

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Find flight deals from St. Louis to Belgrade

Cheapest flights from St. Louis to Belgrade
Explore the most affordable flight options available from St. Louis to Belgrade. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 27, 2025.

Wed 4/3011:15 amSTL - BEG

2 stops17h 40mKLM

Wed 5/286:00 amBEG - STL

2 stops16h 00mKLM

Deal found 3/27

$845

Wed 4/305:35 pmSTL - BEG

2 stops23h 20mLufthansa

Wed 5/286:10 amBEG - STL

1 stop14h 20mLufthansa

Deal found 3/27

$954

Wed 4/306:00 pmSTL - BEG

2 stops16h 10mMultiple Airlines

Wed 5/286:20 pmBEG - STL

2 stops33h 38mMultiple Airlines

Deal found 3/26

$1,091

Sun 7/131:30 pmSTL - BEG

2 stops19h 55mAir Canada

Fri 8/156:10 amBEG - STL

2 stops20h 50mAir Canada

Deal found 3/26

$1,361

Mon 7/142:18 pmSTL - BEG

2 stops14h 37mDelta

Mon 8/1112:35 pmBEG - STL

2 stops32h 41mDelta

Deal found 3/26

$1,375

Thu 7/171:30 pmSTL - BEG

2 stops16h 10mUnited Airlines

Tue 8/121:30 pmBEG - STL

2 stops37h 30mUnited Airlines

Deal found 3/26

$1,422

Best flights from St. Louis to Belgrade
Discover carefully curated flight deals from St. Louis to Belgrade that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 27, 2025.

Wed 4/3011:15 amSTL - BEG

2 stops17h 40mKLM

Wed 5/286:00 amBEG - STL

2 stops16h 00mKLM

Deal found 3/27

$845

Wed 4/305:35 pmSTL - BEG

2 stops23h 20mLufthansa

Wed 5/286:10 amBEG - STL

1 stop14h 20mLufthansa

Deal found 3/27

$954

Wed 4/306:00 pmSTL - BEG

2 stops16h 10mMultiple Airlines

Wed 5/286:20 pmBEG - STL

2 stops33h 38mMultiple Airlines

Deal found 3/26

$1,091

Sun 7/131:30 pmSTL - BEG

2 stops19h 55mAir Canada

Fri 8/156:10 amBEG - STL

2 stops20h 50mAir Canada

Deal found 3/26

$1,361

Mon 7/142:18 pmSTL - BEG

2 stops14h 37mDelta

Mon 8/1112:35 pmBEG - STL

2 stops32h 41mDelta

Deal found 3/26

$1,375

Thu 7/171:30 pmSTL - BEG

2 stops16h 10mUnited Airlines

Tue 8/121:30 pmBEG - STL

2 stops37h 30mUnited Airlines

Deal found 3/26

$1,422

Last-minute flights from St. Louis to Belgrade
Discover last-minute flight deals from St. Louis to Belgrade. Data last updated March 27, 2025 and is based on user searches.

Wed 4/3011:15 amSTL - BEG

2 stops17h 40mKLM

Wed 5/286:00 amBEG - STL

2 stops16h 00mKLM

Deal found 3/27

$845

Wed 4/305:35 pmSTL - BEG

2 stops23h 20mLufthansa

Wed 5/286:10 amBEG - STL

1 stop14h 20mLufthansa

Deal found 3/27

$954

Wed 4/306:00 pmSTL - BEG

2 stops16h 10mMultiple Airlines

Wed 5/286:20 pmBEG - STL

2 stops33h 38mMultiple Airlines

Deal found 3/26

$1,091

Wed 4/3011:00 amSTL - BEG

2 stops19h 10mUnited Airlines

Wed 5/286:10 amBEG - STL

3 stops23h 05mUnited Airlines

Deal found 3/26

$1,387

One-way flights from St. Louis to Belgrade
Search for one-way flight options from St. Louis to Belgrade. Find affordable one-way fares based on user searches. Data last updated March 27, 2025.

Sat 7/55:45 pmSTL - BEG

2 stops57h 40mMultiple Airlines

Deal found 3/27

$387

Cheapflights Fare Finder

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 4/30

11:15 am-11:55 am

2 stops17h 40m

Belgrade Nikola Tesla

Wed 5/28

6:00 am-3:00 pm

2 stops16h 00m

$845

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 4/30

5:35 pm-11:55 pm

2 stops23h 20m

Belgrade Nikola Tesla

Wed 5/28

6:10 am-1:30 pm

1 stop14h 20m

$954

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 4/30

6:00 pm-5:10 pm

2 stops16h 10m

Belgrade Nikola Tesla

Wed 5/28

6:20 pm-8:58 pm

2 stops33h 38m

$1,091

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sun 7/13

1:30 pm-4:25 pm

2 stops19h 55m

Belgrade Nikola Tesla

Fri 8/15

6:10 am-8:00 pm

2 stops20h 50m

$1,361

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Mon 7/14

2:18 pm-11:55 am

2 stops14h 37m

Belgrade Nikola Tesla

Mon 8/11

12:35 pm-2:16 pm

2 stops32h 41m

$1,375

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Thu 7/17

1:30 pm-12:40 pm

2 stops16h 10m

Belgrade Nikola Tesla

Tue 8/12

1:30 pm-8:00 pm

2 stops37h 30m

$1,422

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sat 7/5

5:45 pm-10:25 am

2 stops57h 40m

$387

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Compare providers for flights from St. Louis to Belgrade

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Belgrade in March.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*1 star
Cheapfaremart	Price Accuracy-	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on St. Louis-Belgrade flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Belgrade flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Belgrade flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on St. Louis-Belgrade flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Belgrade flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Belgrade

Have a flexible travel schedule? Discover the best time to fly to Belgrade from St. Louis with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Belgrade

What is the cheapest month to book a flight from St. Louis to Belgrade?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Belgrade (average of $688). Flying from St. Louis to Belgrade in June is currently the most expensive (average of $1,191). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in Belgrade by month

In terms of precipitation, rainfall in Belgrade ranges from 1.6 - 4.0 inches per month. June is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Belgrade when rainfall is around 1.6 in.

Temperature in Belgrade by month

If weather is an important factor for your trip to Belgrade, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Belgrade

Delta

8.0

Very good

7,895 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,895 reviews

Delta

8.0

Very good

7,895 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,319 reviews

Delta

8.0

Very good

7,895 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,603 reviews

Delta

8.0

Very good

7,895 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada

7.0

Good

8,973 reviews

Delta

8.0

Very good

7,895 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Lufthansa

6.7

Okay

6,952 reviews

Delta

8.0

Very good

7,895 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What are the cheapest airlines flying from St. Louis to Belgrade round-trip?
KLM, at $845, was found to be the cheapest airline from St. Louis to Belgrade.Alternate airlines to your destination round-trip include Lufthansa and Air Canada. KLM is 13% cheaper than the average price of flights available within the next 90 days to this destination.
Can I find deals for flights from St. Louis to Belgrade that include hotel bookings?
Yes. In addition to deals on St. Louis to Belgrade flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Belgrade?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Belgrade.
Can I find deals for business class flights from St. Louis to Belgrade?
Yes. Cheapflights offers flight deals from St. Louis to Belgrade by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from St. Louis to Belgrade?
Currently, January is the cheapest month in which you can book a flight from St. Louis to Belgrade (average of $688). Flying from St. Louis to Belgrade in June is currently the most expensive (average of $1,191). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for St. Louis to Belgrade

Kansas City to Belgrade flights

Other flights to Belgrade

Top 3 airlines flying from St. Louis to Belgrade

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$696	Average$1,048	FlexibilityNo cancel fee	On-timeN/A
Air Canada	Cheapest$787	Average$1,057	FlexibilityNo cancel fee	On-time67%
Lufthansa	Cheapest$796	Average$1,129	FlexibilityNo cancel fee	On-time76%

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$387+ Cheap flights from St. Louis (STL) to Belgrade (BEG)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/5. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Belgrade with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from St. Louis to Belgrade

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from St. Louis to Belgrade

Cheapest flights from St. Louis to BelgradeExplore the most affordable flight options available from St. Louis to Belgrade. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 27, 2025.

Explore the most affordable flight options available from St. Louis to Belgrade. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 27, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Belgrade that are best for you.

Compare providers for flights from St. Louis to Belgrade

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Belgrade in March.

Best time to book a flight from St. Louis to Belgrade

Have a flexible travel schedule? Discover the best time to fly to Belgrade from St. Louis with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Belgrade

What is the cheapest month to book a flight from St. Louis to Belgrade?

Rainfall in Belgrade by month

Plan your trip to Belgrade by taking into account the average rainfall totals by month.

Temperature in Belgrade by month

Plan your trip to Belgrade by taking into account the average temperature totals by month.

Reviews of airlines servicing Belgrade

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Belgrade. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from St. Louis to Belgrade round-trip?

Can I find deals for flights from St. Louis to Belgrade that include hotel bookings?

How can I find direct flights from St. Louis to Belgrade?

Can I find deals for business class flights from St. Louis to Belgrade?

What is the cheapest month to book a flight from St. Louis to Belgrade?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Belgrade

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from St. Louis to Belgrade

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Cheapest flights from St. Louis to Belgrade
Explore the most affordable flight options available from St. Louis to Belgrade. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 27, 2025.