HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Serbia

$446+ 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 8/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BEG
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Serbia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 julio 31, 2025.

Round-trip from

$682
(Lufthansa)

One-way from

$446
(Condor)

Popular in

June

Cheapest in

February

Average price

$1,118

Good round-trip deal

$901 or less

Good one-way deal

$486 or less
From Illinois to Serbia
Search Deals
One-way flight from Illinois to Serbia
Search Deals
Highest demand for flights based on searches. 26% potential increase in price ($302 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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

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 julio 31, 2025.

This Lufthansa deal was found by Cheapflights users on 7/29. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/33:50 pmSTL - BEG
1 stop14h 00mLufthansa
dom. 12/76:15 amBEG - STL
1 stop14h 40mLufthansa
Deal found 7/29$682
This United Airlines deal was found by Cheapflights users on 7/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/38:30 amSTL - BEG
2 stops21h 20mUnited Airlines
dom. 12/76:15 amBEG - STL
1 stop14h 40mUnited Airlines
Deal found 7/29$686
This Cheapflightsfares deal was found by Cheapflights users on 7/31. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/1711:25 amORD - BEG
1 stop20h 45mTurkish Airlines
vie. 10/312:50 amBEG - ORD
1 stop15h 50mTurkish Airlines
Deal found 7/31$719
This oojo deal was found by Cheapflights users on 7/30. 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.
dom. 11/309:55 pmORD - BEG
2 stops32h 20mLOT
dom. 12/141:55 pmBEG - ORD
2 stops36h 55mLOT
Deal found 7/30$726
This Mytrip deal was found by Cheapflights users on 7/30. 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.
jue. 11/277:20 pmORD - BEG
2 stops20h 00mMultiple Airlines
jue. 12/116:55 amBEG - ORD
2 stops16h 50mMultiple Airlines
Deal found 7/30$729
This SmartFares deal was found by Cheapflights users on 7/31. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/286:50 pmORD - BEG
1 stop11h 55mSWISS
sáb. 1/108:00 pmBEG - ORD
1 stop27h 20mSWISS
Deal found 7/31$749
This Ovago deal was found by Cheapflights users on 7/30. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/282:39 pmORD - BEG
2 stops13h 51mAustrian Airlines
mar. 11/116:30 pmBEG - ORD
1 stop26h 30mAustrian Airlines
Deal found 7/30$775
This Air Canada deal was found by Cheapflights users on 7/31. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/293:45 pmORD - BEG
2 stops38h 20mAir Canada
dom. 1/111:25 pmBEG - ORD
2 stops25h 40mAir Canada
Deal found 7/31$779
This United Airlines deal was found by Cheapflights users on 7/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/276:25 pmORD - BEG
1 stop11h 30mUnited Airlines
vie. 1/96:20 amBEG - ORD
2 stops19h 07mUnited Airlines
Deal found 7/31$781
This Delta deal was found by Cheapflights users on 7/31. 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.
sáb. 12/279:30 amMDW - BEG
2 stops19h 25mDelta
jue. 1/296:00 amBEG - MDW
2 stops22h 46mDelta
Deal found 7/31$835
This KLM deal was found by Cheapflights users on 7/30. 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.
vie. 9/1212:43 pmMDW - BEG
2 stops16h 32mKLM
vie. 10/36:40 amBEG - MDW
2 stops18h 55mKLM
Deal found 7/30$927
This Air France deal was found by Cheapflights users on 7/31. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/21:08 pmMDW - BEG
2 stops16h 17mMultiple Airlines
dom. 10/126:40 amBEG - MDW
2 stops18h 45mMultiple Airlines
Deal found 7/31$996

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 julio 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

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

mié. 12/3

3:50 pm-12:50 pm

1 stop14h 00m

Belgrade Nikola Tesla

dom. 12/7

6:15 am-1:55 pm

1 stop14h 40m

$682

St. LouisBelgrade

STL - BEG

STLBEG

Lambert-St Louis

mié. 12/3

8:30 am-12:50 pm

2 stops21h 20m

Belgrade Nikola Tesla

dom. 12/7

6:15 am-1:55 pm

1 stop14h 40m

$686

ChicagoBelgrade

ORD - BEG

ORDBEG

Chicago O'Hare Intl

mié. 9/17

11:25 am-3:10 pm

1 stop20h 45m

Belgrade Nikola Tesla

vie. 10/3

12:50 am-9:40 am

1 stop15h 50m

$719

ChicagoBelgrade

ORD - BEG

ORDBEG

Chicago O'Hare Intl

dom. 11/30

9:55 pm-1:15 pm

2 stops32h 20m

Belgrade Nikola Tesla

dom. 12/14

1:55 pm-7:50 pm

2 stops36h 55m

$726

ChicagoBelgrade

ORD - BEG

ORDBEG

Chicago O'Hare Intl

jue. 11/27

7:20 pm-10:20 pm

2 stops20h 00m

Belgrade Nikola Tesla

jue. 12/11

6:55 am-4:45 pm

2 stops16h 50m

$729

ChicagoBelgrade

ORD - BEG

ORDBEG

Chicago O'Hare Intl

dom. 12/28

6:50 pm-1:45 pm

1 stop11h 55m

Belgrade Nikola Tesla

sáb. 1/10

8:00 pm-4:20 pm

1 stop27h 20m

$749

ChicagoBelgrade

ORD - BEG

ORDBEG

Chicago O'Hare Intl

mar. 10/28

2:39 pm-10:30 am

2 stops13h 51m

Belgrade Nikola Tesla

mar. 11/11

6:30 pm-2:00 pm

1 stop26h 30m

$775

ChicagoBelgrade

ORD - BEG

ORDBEG

Chicago O'Hare Intl

jue. 12/25

10:35 am-12:40 pm

2 stops19h 05m

Belgrade Nikola Tesla

lun. 1/12

1:25 pm-6:27 pm

2 stops36h 02m

$776

ChicagoBelgrade

ORD - BEG

ORDBEG

Chicago O'Hare Intl

sáb. 12/27

6:25 pm-12:55 pm

1 stop11h 30m

Belgrade Nikola Tesla

vie. 1/9

6:20 am-6:27 pm

2 stops19h 07m

$781

ChicagoBelgrade

MDW - BEG

MDWBEG

Chicago Midway

sáb. 12/27

9:30 am-11:55 am

2 stops19h 25m

Belgrade Nikola Tesla

jue. 1/29

6:00 am-9:46 pm

2 stops22h 46m

$835

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 23 results
1
2
3

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 $1,172). 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 julio 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.

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 julio 31, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and LOT from Illinois to Serbia to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
LOT
7.6
Good
1,105 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
823 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 SWISS ($449), Lufthansa ($459), and Turkish Airlines ($460).

  • 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 $1,172). 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

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

Alternative routes for Illinois to Serbia

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
John F Kennedy Intl to Charles de Gaulle flights
John F Kennedy Intl to Gatwick flights
John F Kennedy Intl to Leonardo da Vinci/Fiumicino flights
John F Kennedy Intl to London City flights
Newark to Charles de Gaulle flights
Newark to Leonardo da Vinci/Fiumicino flights
Newark to Gatwick flights
LaGuardia to Heathrow flights
John F Kennedy Intl to Istanbul flights
John F Kennedy Intl to Lisbon flights
Newark to London City flights
John F Kennedy Intl to Stansted flights
LaGuardia to Gatwick flights
Miami to Madrid flights
John F Kennedy Intl to Orly flights
Newark to Lisbon flights
Boston to Heathrow flights
O'Hare Intl to Heathrow flights
Newark to Athens flights
John F Kennedy Intl to Luton flights
Dulles Intl to Heathrow flights
Newark to Barcelona-El Prat flights
Los Angeles to Heathrow flights
Newark to Orly flights
Newark to Stansted flights
LaGuardia to Charles de Gaulle flights
John F Kennedy Intl to Athens flights
John F Kennedy Intl to Malpensa flights
John F Kennedy Intl to Dublin flights
Newark to Madrid flights
John F Kennedy Intl to Barcelona-El Prat flights
John F Kennedy Intl to Madrid flights
LaGuardia to Leonardo da Vinci/Fiumicino flights
San Francisco to Heathrow flights
Newark to Malpensa flights
Seattle to Heathrow flights
Newark to Dublin flights
Boston to Charles de Gaulle flights
Baltimore to Heathrow flights
Boston to Leonardo da Vinci/Fiumicino flights
Seattle to Charles de Gaulle flights
John F Kennedy Intl to Frederic Chopin flights
Newark to Luton flights
O'Hare Intl to Leonardo da Vinci/Fiumicino flights
O'Hare Intl to Charles de Gaulle flights
Dallas/Fort Worth to Heathrow flights
John F Kennedy Intl to Frankfurt flights
John F Kennedy Intl to Amsterdam flights

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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$344Average$816FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$505Average$891FlexibilityNo cancel feeOn-time79%
Turkish AirlinesCheapest$515Average$619FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$570Average$782FlexibilityNo cancel feeOn-time78%
LOTCheapest$577Average$818FlexibilityNo cancel feeOn-time81%
LufthansaCheapest$586Average$907FlexibilityNo cancel feeOn-time76%
KLMCheapest$588Average$775FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$592Average$827FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$634Average$1,176FlexibilityNo cancel feeOn-time62%
Air SerbiaCheapest$809Average$1,069FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.