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$495+ Cheap flights from Illinois to Serbia

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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BEG
Jun 22 — Jun 291
Sun 6/22
Sun 6/29
1 adult, Economy
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Cheap flight deals from Illinois to Serbia

Keep the following information in mind while searching for Illinois to Serbia flight deals. Data was last updated June 17, 2025.

Round-trip from

$641
(Air Canada)

One-way from

$495
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,251

Good round-trip deal

$848 or less

Good one-way deal

$385 or less
From Illinois to Serbia
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One-way flight from Illinois to Serbia
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Highest demand for flights based on searches. 27% potential increase in price ($301 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Illinois to Serbia.
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Price to beat on a one-way flight from Illinois to Serbia.
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Find flight deals from Illinois to Serbia

Cheapest flights from Illinois to Serbia
Explore the most affordable flight options available from Illinois to Serbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 17, 2025.

This Air Canada deal was found by Cheapflights users on 6/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/264:05 pmSTL - BEG
2 stops41h 20mAir Canada
Fri 8/226:05 amBEG - STL
2 stops44h 55mAir Canada
Deal found 6/16$641
This Lufthansa deal was found by Cheapflights users on 6/17. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/295:31 pmSTL - BEG
2 stops15h 54mLufthansa
Mon 8/185:10 pmBEG - STL
2 stops53h 34mLufthansa
Deal found 6/17$702
This Gotogate deal was found by Cheapflights users on 6/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/81:30 pmSTL - BEG
2 stops16h 25mMultiple Airlines
Sun 8/241:00 pmBEG - STL
2 stops38h 00mMultiple Airlines
Deal found 6/15$729
This Delta deal was found by Cheapflights users on 6/15. 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.
Fri 7/257:00 amSTL - BEG
2 stops21h 55mDelta
Fri 8/226:00 amBEG - STL
2 stops22h 27mDelta
Deal found 6/15$731
This United Airlines deal was found by Cheapflights users on 6/17. 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.
Mon 7/288:25 amSTL - BEG
2 stops21h 10mUnited Airlines
Tue 8/121:30 pmBEG - STL
2 stops36h 23mUnited Airlines
Deal found 6/17$744
This KLM deal was found by Cheapflights users on 6/14. 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.
Sun 7/2711:18 amSTL - BEG
2 stops17h 37mKLM
Fri 8/156:00 amBEG - STL
2 stops15h 29mKLM
Deal found 6/14$766
This CheapOair deal was found by Cheapflights users on 6/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2710:38 amORD - BEG
2 stops20h 02mMultiple Airlines
Thu 11/138:05 pmBEG - ORD
2 stops31h 20mMultiple Airlines
Deal found 6/16$775
This SWISS deal was found by Cheapflights users on 6/15. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/42:20 pmORD - BEG
1 stop16h 40mSWISS
Wed 8/202:45 pmBEG - ORD
1 stop28h 25mSWISS
Deal found 6/15$777
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Fri 10/174:00 pmORD - BEG
1 stop13h 55mUnited Airlines
Thu 11/66:25 amBEG - ORD
2 stops21h 00mUnited Airlines
Deal found 6/16$784
This Turkish Airlines deal was found by Cheapflights users on 6/16. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/511:25 amORD - BEG
1 stop14h 05mTurkish Airlines
Wed 9/179:20 amBEG - ORD
1 stop15h 35mTurkish Airlines
Deal found 6/16$785
This Air Canada deal was found by Cheapflights users on 6/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/57:15 amORD - BEG
2 stops26h 10mAir Canada
Wed 8/206:10 amBEG - ORD
2 stops39h 45mAir Canada
Deal found 6/15$787
This CrystalTravel deal was found by Cheapflights users on 6/15. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/34:30 pmORD - BEG
Nonstop9h 45mAir Serbia
Wed 9/1710:45 amBEG - ORD
Nonstop10h 40mAir Serbia
Deal found 6/15$796

Cheapflights Fare Finder

Customize your flight search to find flights from Illinois 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 June 17, 2025.
Use the filters below to find and compare flights from Illinois to Serbia that are best for you.

Fly from

Illinois

Fly to

Serbia

Route

Depart

Return

Price

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sat 7/26

4:05 pm-4:25 pm

2 stops41h 20m

Belgrade Nikola Tesla

Fri 8/22

6:05 am-8:00 pm

2 stops44h 55m

$641

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Tue 7/29

5:31 pm-4:25 pm

2 stops15h 54m

Belgrade Nikola Tesla

Mon 8/18

5:10 pm-3:44 pm

2 stops53h 34m

$702

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Fri 8/8

1:30 pm-12:55 pm

2 stops16h 25m

Belgrade Nikola Tesla

Sun 8/24

1:00 pm-8:00 pm

2 stops38h 00m

$729

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Fri 7/25

7:00 am-11:55 am

2 stops21h 55m

Belgrade Nikola Tesla

Fri 8/22

6:00 am-9:27 pm

2 stops22h 27m

$731

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Mon 7/28

8:25 am-12:35 pm

2 stops21h 10m

Belgrade Nikola Tesla

Tue 8/12

1:30 pm-6:53 pm

2 stops36h 23m

$744

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sun 7/27

11:18 am-11:55 am

2 stops17h 37m

Belgrade Nikola Tesla

Fri 8/15

6:00 am-2:29 pm

2 stops15h 29m

$766

ChicagoBelgrade

ORD - BEG

ORDBEG

Chicago O'Hare Intl

Mon 10/27

10:38 am-12:40 pm

2 stops20h 02m

Belgrade Nikola Tesla

Thu 11/13

8:05 pm-8:25 pm

2 stops31h 20m

$775

ChicagoBelgrade

ORD - BEG

ORDBEG

Chicago O'Hare Intl

Mon 8/4

2:20 pm-2:00 pm

1 stop16h 40m

Belgrade Nikola Tesla

Wed 8/20

2:45 pm-12:10 pm

1 stop28h 25m

$777

ChicagoBelgrade

ORD - BEG

ORDBEG

Chicago O'Hare Intl

Fri 10/17

4:00 pm-12:55 pm

1 stop13h 55m

Belgrade Nikola Tesla

Thu 11/6

6:25 am-8:25 pm

2 stops21h 00m

$784

ChicagoBelgrade

ORD - BEG

ORDBEG

Chicago O'Hare Intl

Fri 9/5

11:25 am-8:30 am

1 stop14h 05m

Belgrade Nikola Tesla

Wed 9/17

9:20 am-5:55 pm

1 stop15h 35m

$785

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

Showing 1-10 of 36 results
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Best time to book a flight from Illinois to Serbia

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

Rainfall in Serbia by month

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

Temperature in Serbia by month

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

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Alternative routes for Illinois to Serbia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Illinois to Serbia

Discover the top 10 airlines that operate flights from Illinois 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 June 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$515Average$605FlexibilityNo cancel feeOn-time77%
SWISSCheapest$520Average$876FlexibilityNo cancel feeOn-time79%
JetBlueCheapest$559Average$1,169FlexibilityNo cancel feeOn-time62%
LufthansaCheapest$567Average$907FlexibilityNo cancel feeOn-time76%
Austrian AirlinesCheapest$570Average$775FlexibilityNo cancel feeOn-time78%
LOTCheapest$572Average$791FlexibilityNo cancel feeOn-time81%
KLMCheapest$588Average$788FlexibilityNo cancel feeOn-time75%
DeltaCheapest$590Average$1,114FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$592Average$827FlexibilityNo cancel feeOn-time69%
Air SerbiaCheapest$655Average$1,045FlexibilityNo cancel feeOn-timeN/A

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