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$261+ 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 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BEG
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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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 October 30, 2025.

This Delta deal was found by Cheapflights users on 10/30. 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.
Sun 11/304:25 pmORD - BEG
1 stop24h 00mDelta
Wed 12/106:05 amBEG - ORD
2 stops18h 57mDelta
Deal found 10/30$558
This Air Canada deal was found by Cheapflights users on 10/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:50 pmORD - BEG
2 stops16h 55mAir Canada
Sun 12/71:30 pmBEG - ORD
2 stops56h 40mAir Canada
Deal found 10/30$559
This KAYAK deal was found by Cheapflights users on 10/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/79:50 pmORD - BEG
1 stop12h 15mLufthansa
Wed 12/171:50 pmBEG - ORD
1 stop13h 15mLufthansa
Deal found 10/30$560
This KAYAK deal was found by Cheapflights users on 10/29. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2910:35 pmORD - BEG
1 stop18h 15mLufthansa
Sun 1/185:50 pmBEG - ORD
1 stop31h 35mLufthansa
Deal found 10/29$561
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/289:34 amMDW - BEG
2 stops19h 21mDelta
Fri 12/512:35 pmBEG - MDW
2 stops18h 12mDelta
Deal found 10/29$562
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/56:07 amEVV - BEG
2 stops34h 18mDelta
Tue 12/96:05 amBEG - EVV
2 stops22h 42mDelta
Deal found 10/28$562
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/32:07 pmSTL - BEG
2 stops38h 48mDelta
Sun 12/76:05 amBEG - STL
2 stops21h 42mDelta
Deal found 10/29$562
This Delta deal was found by Cheapflights users on 10/30. 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.
Tue 12/307:00 amORD - BEG
2 stops33h 25mDelta
Mon 1/126:05 amBEG - ORD
2 stops23h 29mDelta
Deal found 10/30$562
This Delta deal was found by Cheapflights users on 10/30. 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.
Sat 12/277:05 pmORD - BEG
2 stops45h 20mDelta
Mon 1/126:05 amBEG - ORD
1 stop15h 15mDelta
Deal found 10/30$563
This Air Canada deal was found by Cheapflights users on 10/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/308:15 pmORD - BEG
2 stops33h 30mAir Canada
Sun 12/71:30 pmBEG - ORD
2 stops56h 40mAir Canada
Deal found 10/30$566
This United Airlines deal was found by Cheapflights users on 10/30. 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.
Mon 12/83:20 pmORD - BEG
1 stop14h 30mUnited Airlines
Tue 12/166:10 amBEG - ORD
1 stop16h 10mUnited Airlines
Deal found 10/30$567
This Delta deal was found by Cheapflights users on 10/30. 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.
Sat 12/277:05 pmORD - BEG
2 stops45h 20mDelta
Sun 1/1112:35 pmBEG - ORD
2 stops36h 10mDelta
Deal found 10/30$568

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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$558
(Delta)

One-way from

$261
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$836

Good round-trip deal

$780 or less

Good one-way deal

$352 or less
Provider with most accurate pricing for Chicago (CHI)-Belgrade Nikola Tesla flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Belgrade Nikola Tesla flights.
Search Deals
From Illinois to Serbia
Search Deals
One-way flight from Illinois to Serbia
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($281 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Serbia.
Search Deals
Price to beat on a one-way flight from Illinois to Serbia.
Search Deals

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 October 30, 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

ChicagoBelgrade

MDW - BEG

MDWBEG

Chicago Midway

Fri 11/28

9:34 am-11:55 am

2 stops19h 21m

Belgrade Nikola Tesla

Fri 12/5

12:35 pm-11:47 pm

2 stops18h 12m

$562

EvansvilleBelgrade

EVV - BEG

EVVBEG

Evansville Dress Regional

Fri 12/5

6:07 am-11:25 pm

2 stops34h 18m

Belgrade Nikola Tesla

Tue 12/9

6:05 am-9:47 pm

2 stops22h 42m

$562

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 12/3

2:07 pm-11:55 am

2 stops38h 48m

Belgrade Nikola Tesla

Sun 12/7

6:05 am-8:47 pm

2 stops21h 42m

$562

ChicagoBelgrade

ORD - BEG

ORDBEG

Chicago O'Hare Intl

Tue 12/30

7:00 am-11:25 pm

2 stops33h 25m

Belgrade Nikola Tesla

Thu 1/15

6:05 am-5:56 pm

2 stops18h 51m

$562

ChicagoBelgrade

ORD - BEG

ORDBEG

Chicago O'Hare Intl

Tue 12/30

6:50 pm-1:45 pm

1 stop11h 55m

Belgrade Nikola Tesla

Wed 1/14

9:40 am-4:20 pm

1 stop13h 40m

$620

ChicagoBelgrade

ORD - BEG

ORDBEG

Chicago O'Hare Intl

Thu 2/19

1:35 pm-11:55 am

2 stops15h 20m

Belgrade Nikola Tesla

Fri 3/6

6:05 am-2:20 pm

1 stop15h 15m

$654

ChicagoBelgrade

ORD - BEG

ORDBEG

Chicago O'Hare Intl

Wed 2/18

1:30 pm-11:55 am

2 stops15h 25m

Belgrade Nikola Tesla

Thu 3/5

12:35 pm-2:20 pm

1 stop32h 45m

$654

ChicagoBelgrade

ORD - BEG

ORDBEG

Chicago O'Hare Intl

Fri 2/27

9:30 am-11:25 pm

2 stops30h 55m

Belgrade Nikola Tesla

Fri 3/13

12:35 pm-3:20 pm

1 stop32h 45m

$654

ChicagoBelgrade

ORD - BEG

ORDBEG

Chicago O'Hare Intl

Mon 2/23

10:40 am-11:55 am

2 stops18h 15m

Belgrade Nikola Tesla

Fri 3/6

6:05 am-2:20 pm

1 stop15h 15m

$654

ChicagoBelgrade

ORD - BEG

ORDBEG

Chicago O'Hare Intl

Thu 2/26

7:30 am-11:25 pm

2 stops32h 55m

Belgrade Nikola Tesla

Sun 3/15

12:35 pm-3:20 pm

1 stop32h 45m

$654

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 58 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

What is the cheapest month to book a flight from Illinois to Serbia?

Currently, February is the cheapest month in which you can book a flight from Illinois to Serbia (average of $503). Flying from Illinois to Serbia in June is currently the most expensive (average of $997). 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.

What is the cheapest time of day to fly from IL to RS?

Find hourly flight availability from Illinois to Serbia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 40% on flights from Illinois to Serbia by exploring options for tickets in the afternoon.

What is the cheapest day to fly from Illinois to Serbia?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Serbia. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Illinois to Serbia flight should consider departing on Friday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

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

  • How long is the flight from Illinois to Serbia?

    Delta, SWISS, and Lufthansa can get you from Illinois to Serbia in just under 11h 55m. Your travel time can differ by up to 7h 26m. Illinois and Serbia are separated by a distance of 4981 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Illinois to Serbia that include hotel bookings?

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

  • How can I find direct flights from Illinois to Serbia?

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

  • Can I find deals for business class flights from Illinois to Serbia?

    Yes. Cheapflights offers flight deals from Illinois 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 Illinois to Serbia?

    Currently, February is the cheapest month in which you can book a flight from Illinois to Serbia (average of $503). Flying from Illinois to Serbia in June is currently the most expensive (average of $997). 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 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$520Average$640FlexibilityNo cancel feeOn-time77%
DeltaCheapest$548Average$816FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$570Average$913FlexibilityNo cancel feeOn-time79%
KLMCheapest$573Average$886FlexibilityNo cancel feeOn-time75%
LOTCheapest$592Average$813FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$618Average$862FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$665Average$963FlexibilityNo cancel feeOn-time76%
JetBlueCheapest$717Average$1,158FlexibilityNo cancel feeOn-time62%
Austrian AirlinesCheapest$721Average$856FlexibilityNo cancel feeOn-time78%
Air SerbiaCheapest$813Average$1,003FlexibilityNo cancel feeOn-timeN/A

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