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$351+ 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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BEG
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
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 March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$614
(oojo)

One-way from

$351
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$747

Good round-trip deal

$882 or less

Good one-way deal

$386 or less
Provider with most accurate pricing for Chicago (CHI)-Belgrade Nikola Tesla flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Belgrade Nikola Tesla flights.
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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. 26% potential increase in price ($291 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% 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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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 March 31, 2025.

This oojo deal was found by Cheapflights users on 3/31. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/317:50 pmORD - BEG
1 stop29h 40mTurkish Airlines
Mon 9/159:20 amBEG - ORD
1 stop19h 40mTurkish Airlines
Deal found 3/31$593
This oojo deal was found by Cheapflights users on 3/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/207:15 pmORD - BEG
1 stop33h 30mMultiple Airlines
Tue 8/196:30 amBEG - ORD
1 stop16h 40mMultiple Airlines
Deal found 3/30$616
This oojo deal was found by Cheapflights users on 3/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/319:40 pmORD - BEG
1 stop32h 40mLOT
Mon 4/75:15 pmBEG - ORD
1 stop33h 25mLOT
Deal found 3/30$826
This Mytrip deal was found by Cheapflights users on 3/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/297:25 amSTL - BEG
2 stops20h 00mMultiple Airlines
Tue 5/69:25 amBEG - STL
2 stops17h 33mMultiple Airlines
Deal found 3/30$830
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Tue 4/299:39 amSTL - BEG
2 stops19h 56mUnited Airlines
Tue 5/66:10 amBEG - STL
3 stops41h 42mUnited Airlines
Deal found 3/30$836
This Austrian Airlines deal was found by Cheapflights users on 3/29. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/304:20 pmORD - BEG
1 stop18h 35mAustrian Airlines
Sun 4/611:05 amBEG - ORD
1 stop33h 15mAustrian Airlines
Deal found 3/29$848
This Orbitz deal was found by Cheapflights users on 3/30. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/295:35 pmSTL - BEG
2 stops23h 20mLufthansa
Tue 5/61:30 pmBEG - STL
1 stop31h 00mLufthansa
Deal found 3/30$854
This Air Serbia deal was found by Cheapflights users on 3/31. 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 Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/94:30 pmORD - BEG
Nonstop9h 40mAir Serbia
Sat 5/35:20 pmBEG - ORD
Nonstop10h 40mAir Serbia
Deal found 3/31$868
This FlightHub deal was found by Cheapflights users on 3/30. 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.
Sun 3/303:35 pmORD - BEG
2 stops17h 50mAir Canada
Sun 4/61:40 pmBEG - ORD
2 stops36h 50mAir Canada
Deal found 3/30$871
This KLM deal was found by Cheapflights users on 3/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/302:55 pmMDW - BEG
2 stops14h 00mKLM
Sun 4/66:00 amBEG - MDW
2 stops15h 17mKLM
Deal found 3/30$935
This Delta deal was found by Cheapflights users on 3/31. 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 8/29:20 amMDW - BEG
2 stops19h 35mDelta
Sat 8/236:00 amBEG - MDW
2 stops19h 03mDelta
Deal found 3/31$999
This KLM deal was found by Cheapflights users on 3/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/91:30 pmSTL - BEG
2 stops15h 45mKLM
Tue 8/126:00 amBEG - STL
2 stops15h 16mKLM
Deal found 3/30$1,004

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 March 31, 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

ORD - BEG

ORDBEG

Chicago O'Hare Intl

Sun 4/27

11:25 am-3:10 pm

1 stop20h 45m

Belgrade Nikola Tesla

Wed 5/28

4:00 pm-9:40 am

1 stop24h 40m

$614

ChicagoBelgrade

ORD - BEG

ORDBEG

Chicago O'Hare Intl

Tue 5/6

8:45 am-11:45 am

2 stops20h 00m

Belgrade Nikola Tesla

Tue 5/20

7:00 am-9:54 pm

2 stops21h 54m

$673

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Tue 4/29

7:25 am-10:25 am

2 stops20h 00m

Belgrade Nikola Tesla

Tue 5/6

9:25 am-7:58 pm

2 stops17h 33m

$830

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Tue 4/29

9:39 am-12:35 pm

2 stops19h 56m

Belgrade Nikola Tesla

Tue 5/6

6:10 am-4:52 pm

3 stops41h 42m

$836

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Tue 4/29

5:35 pm-11:55 pm

2 stops23h 20m

Belgrade Nikola Tesla

Tue 5/6

1:30 pm-1:30 pm

1 stop31h 00m

$854

ChicagoBelgrade

ORD - BEG

ORDBEG

Chicago O'Hare Intl

Sat 4/12

9:40 pm-1:20 pm

1 stop32h 40m

Belgrade Nikola Tesla

Wed 4/30

2:00 pm-3:10 pm

1 stop32h 10m

$855

ChicagoBelgrade

ORD - BEG

ORDBEG

Chicago O'Hare Intl

Wed 4/9

4:30 pm-9:10 am

Nonstop9h 40m

Belgrade Nikola Tesla

Sat 5/3

5:20 pm-9:00 pm

Nonstop10h 40m

$868

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Wed 7/9

1:30 pm-12:15 pm

2 stops15h 45m

Belgrade Nikola Tesla

Tue 8/12

6:00 am-2:16 pm

2 stops15h 16m

$1,004

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

Sun 7/6

7:00 am-11:55 am

2 stops21h 55m

Belgrade Nikola Tesla

Thu 8/14

6:00 am-4:47 pm

2 stops17h 47m

$1,005

ChicagoBelgrade

MDW - BEG

MDWBEG

Chicago Midway

Tue 4/29

3:02 pm-11:55 am

2 stops13h 53m

Belgrade Nikola Tesla

Tue 5/6

6:00 am-6:20 pm

2 stops19h 20m

$1,019

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 29 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, January is the cheapest month in which you can book a flight from Illinois to Serbia (average of $688). Flying from Illinois to Serbia in June is currently the most expensive (average of $1,186). 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 March 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Serbia as you normally would.

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 March 31, 2025.
Get a feel of what it's like to fly with Delta, KLM and LOT from Illinois to Serbia by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,899 reviews

Entertainment

7.9

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Overall

8.0

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
7,899 reviews
Delta
8.0
Very good
7,899 reviews

Entertainment

7.9

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Overall

8.0

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
1,321 reviews
Delta
8.0
Very good
7,899 reviews

Entertainment

7.9

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Overall

8.0

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.
LOT
7.6
Good
1,065 reviews
Delta
8.0
Very good
7,899 reviews

Entertainment

7.9

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Overall

8.0

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.
SWISS
7.5
Good
1,570 reviews
Delta
8.0
Very good
7,899 reviews

Entertainment

7.9

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Overall

8.0

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 France
7.4
Good
1,425 reviews
Delta
8.0
Very good
7,899 reviews

Entertainment

7.9

Comfort

8.0

Food

7.3

Boarding

8.2

Crew

8.5

Overall

8.0

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 Illinois to Serbia. 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 to fly from Illinois to Serbia one-way?

    The cheapest airlines for a one-way flight from Illinois to Serbia are Turkish Airlines ($457), Air Serbia ($499), and SWISS ($585).

  • 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, January is the cheapest month in which you can book a flight from Illinois to Serbia (average of $688). Flying from Illinois to Serbia in June is currently the most expensive (average of $1,186). 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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$514Average$599FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$517Average$955FlexibilityNo cancel feeOn-time77%
JetBlueCheapest$542Average$1,171FlexibilityNo cancel feeOn-time62%
SWISSCheapest$546Average$922FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$552Average$911FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$556Average$822FlexibilityNo cancel feeOn-time69%
LOTCheapest$569Average$799FlexibilityNo cancel feeOn-time81%
Austrian AirlinesCheapest$584Average$841FlexibilityNo cancel feeOn-time78%
DeltaCheapest$590Average$1,023FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$591Average$830FlexibilityNo cancel feeOn-time75%
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