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$628+ Cheap flights from St. Louis (STL) to Serbia

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
STL — BEG
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from St. Louis to Serbia

Keep the following information in mind while searching for St. Louis to Serbia flight deals. Data was last updated May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$628
(Justfly.com)

Popular in

June

Cheapest in

February

Average price

$1,057
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 Serbia
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Highest demand for flights based on searches. 16% potential increase in price ($192 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 May 2025
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Find flight deals from St. Louis to Serbia

Cheapest flights from St. Louis to Serbia
Explore the most affordable flight options available from St. Louis to Serbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This Justfly.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/211:30 pmSTL - BEG
2 stops16h 05mAir Canada
Thu 8/216:10 amBEG - STL
2 stops20h 50mAir Canada
Deal found 4/30$628
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/231:42 pmSTL - BEG
2 stops16h 28mUnited Airlines
Thu 8/216:10 amBEG - STL
2 stops20h 50mUnited Airlines
Deal found 4/30$632
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2310:30 amSTL - BEG
2 stops18h 25mDelta
Fri 8/226:00 amBEG - STL
2 stops17h 47mDelta
Deal found 4/30$680
This FlightHub deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/215:30 pmSTL - BEG
2 stops15h 55mLufthansa
Fri 8/226:10 amBEG - STL
1 stop14h 20mLufthansa
Deal found 4/30$759
This Travelocity deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/255:30 pmSTL - BEG
2 stops15h 55mMultiple Airlines
Fri 8/156:10 amBEG - STL
2 stops20h 50mMultiple Airlines
Deal found 4/29$805
This KLM deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2511:23 amSTL - BEG
2 stops17h 52mKLM
Wed 8/136:00 amBEG - STL
2 stops17h 45mKLM
Deal found 4/28$814
This FlightHub deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/53:43 pmSTL - BEG
2 stops20h 52mTurkish Airlines
Thu 5/2912:50 amBEG - STL
2 stops28h 55mTurkish Airlines
Deal found 4/29$1,283

Cheapflights Fare Finder

Customize your flight search to find flights from St. Louis to Serbia 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, Cheapflights users made 2,558,603 searches. Data last updated May 1, 2025.
Use the filters below to find and compare flights from St. Louis to Serbia that are best for you.

Fly from

St. Louis

Fly to

Serbia

Route

Depart

Return

Price

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Mon 7/21

1:30 pm-12:35 pm

2 stops16h 05m

Belgrade Nikola Tesla

Thu 8/21

6:10 am-8:00 pm

2 stops20h 50m

$628

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 7/23

1:42 pm-1:10 pm

2 stops16h 28m

Belgrade Nikola Tesla

Thu 8/21

6:10 am-8:00 pm

2 stops20h 50m

$632

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 7/23

10:30 am-11:55 am

2 stops18h 25m

Belgrade Nikola Tesla

Fri 8/22

6:00 am-4:47 pm

2 stops17h 47m

$680

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Mon 7/21

5:30 pm-4:25 pm

2 stops15h 55m

Belgrade Nikola Tesla

Fri 8/22

6:10 am-1:30 pm

1 stop14h 20m

$759

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Fri 7/25

5:30 pm-4:25 pm

2 stops15h 55m

Belgrade Nikola Tesla

Fri 8/15

6:10 am-8:00 pm

2 stops20h 50m

$805

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Fri 7/25

11:23 am-12:15 pm

2 stops17h 52m

Belgrade Nikola Tesla

Wed 8/13

6:00 am-4:45 pm

2 stops17h 45m

$814

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 6/4

2:20 pm-2:00 pm

2 stops16h 40m

$834

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 6/4

3:30 pm-11:55 pm

1 stop25h 25m

$1,059

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

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

Have a flexible travel schedule? Discover the best time to fly to Serbia 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 Serbia

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

Currently, January is the cheapest month in which you can book a flight from St. Louis to Serbia (average of $688). Flying from St. Louis to Serbia in June is currently the most expensive (average of $1,161). 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 Serbia by month

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

In terms of precipitation, rainfall in Serbia 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 Serbia when rainfall is around 1.6 in.

Temperature in Serbia by month

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

If weather is an important factor for your trip to Serbia, 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 Serbia

Get insights into the airlines that provide service to Serbia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Serbia. Reviews last updated May 1, 2025.
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

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
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

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
1,334 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

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
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

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
9,245 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

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
7,046 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

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

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

  • What airport do you fly from for flights from St. Louis to Serbia?

    Most people fly from Lambert-St Louis (STL) if they book a flight from St. Louis to Serbia. Lambert-St Louis is conveniently located just 12.7 mi from St. Louis’s city center.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Serbia 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 Serbia?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Serbia (average of $688). Flying from St. Louis to Serbia in June is currently the most expensive (average of $1,161). 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

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Alternative routes for St. Louis to Serbia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from St. Louis to Serbia

Discover the top 4 airlines that operate flights from St. Louis to Serbia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$746Average$1,048FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$747Average$956FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$787Average$1,057FlexibilityNo cancel feeOn-time67%
LufthansaCheapest$795Average$1,095FlexibilityNo cancel feeOn-time76%

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