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Cheap flights from Illinois to Serbia from $325

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Serbia departing on 12/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to Serbia

Cheap round-trip flights

Enter your travel dates to find the best prices.
SWISS Logo
6:50 pm - 1:55 pmORD  Chicago O'Hare Intl-BEG Belgrade Nikola Tesla
12h 05m1 stop Zurich
SWISS Logo
2:45 pm - 4:15 pmBEG  Belgrade Nikola Tesla-ORD Chicago O'Hare Intl
32h 30m1 stop Zurich
$761SWISS
Mon, Nov 16 - Mon, Nov 30
Multiple Airlines Logo
12:50 pm - 1:00 pmORD  Chicago O'Hare Intl-BEG Belgrade Nikola Tesla
17h 10m2 stops Toronto Pearson Intl Munich Franz Josef Strauss
Multiple Airlines Logo
9:40 am - 4:15 pmBEG  Belgrade Nikola Tesla-ORD Chicago O'Hare Intl
13h 35m1 stop Zurich
$763Multiple Airlines
Fri, Jan 15 - Fri, Jan 29
Multiple Airlines Logo
3:45 pm - 1:00 pmORD  Chicago O'Hare Intl-BEG Belgrade Nikola Tesla
14h 15m2 stops Montreal Pierre Elliott Trudeau Intl Munich Franz Josef Strauss
Multiple Airlines Logo
2:45 pm - 4:15 pmBEG  Belgrade Nikola Tesla-ORD Chicago O'Hare Intl
32h 30m1 stop Zurich
$763Multiple Airlines
Mon, Nov 16 - Mon, Nov 30
Turkish Airlines Logo
8:10 pm - 7:40 pmORD  Chicago O'Hare Intl-BEG Belgrade Nikola Tesla
16h 30m1 stop Istanbul
Turkish Airlines Logo
1:10 pm - 9:40 amBEG  Belgrade Nikola Tesla-ORD Chicago O'Hare Intl
27h 30m1 stop Istanbul
$764Turkish Airlines
Mon, Sep 28 - Mon, Oct 5
Turkish Airlines Logo
8:10 pm - 8:10 amORD  Chicago O'Hare Intl-BEG Belgrade Nikola Tesla
29h 00m1 stop Istanbul
Turkish Airlines Logo
8:20 pm - 11:00 amBEG  Belgrade Nikola Tesla-ORD Chicago O'Hare Intl
20h 40m1 stop Istanbul
$765Turkish Airlines
Sat, Oct 10 - Sun, Oct 25
LOT Logo
9:50 pm - 4:35 pmORD  Chicago O'Hare Intl-BEG Belgrade Nikola Tesla
11h 45m1 stop Warsaw Frederic Chopin
LOT Logo
5:15 pm - 3:10 pmBEG  Belgrade Nikola Tesla-ORD Chicago O'Hare Intl
28h 55m1 stop Warsaw Frederic Chopin
$765LOT
Mon, Sep 14 - Wed, Sep 30
LOT Logo
9:50 pm - 4:35 pmORD  Chicago O'Hare Intl-BEG Belgrade Nikola Tesla
11h 45m1 stop Warsaw Frederic Chopin
LOT Logo
5:15 pm - 3:10 pmBEG  Belgrade Nikola Tesla-ORD Chicago O'Hare Intl
28h 55m1 stop Warsaw Frederic Chopin
$765LOT
Sun, Sep 13 - Wed, Sep 30
United Airlines Logo
7:05 am - 12:50 pmORD  Chicago O'Hare Intl-BEG Belgrade Nikola Tesla
22h 45m2 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main
United Airlines Logo
1:40 pm - 1:10 pmBEG  Belgrade Nikola Tesla-ORD Chicago O'Hare Intl
30h 30m1 stop Frankfurt am Main
$775United Airlines
Sun, Dec 13 - Mon, Jan 11
SWISS Logo
2:20 pm - 1:55 pmORD  Chicago O'Hare Intl-BEG Belgrade Nikola Tesla
16h 35m1 stop Zurich
SWISS Logo
2:40 pm - 4:15 pmBEG  Belgrade Nikola Tesla-ORD Chicago O'Hare Intl
32h 35m1 stop Zurich
$789SWISS
Wed, Oct 14 - Thu, Nov 5
United Airlines Logo
6:00 pm - 12:30 pmORD  Chicago O'Hare Intl-BEG Belgrade Nikola Tesla
11h 30m1 stop Munich Franz Josef Strauss
United Airlines Logo
6:15 am - 2:52 pmBEG  Belgrade Nikola Tesla-ORD Chicago O'Hare Intl
15h 37m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl
$803United Airlines
Mon, Oct 12 - Tue, Nov 17

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Turkish Airlines flights from Illinois to Serbia

Our best Turkish Airlines deals on Illinois to Serbia flight tickets
Turkish Airlines
Sep 28
ORD8:10 pmChicago O'Hare Intl
16h 30m
1 stop
BEG7:40 pmBelgrade Nikola Tesla
Oct 5
BEG1:10 pmBelgrade Nikola Tesla
27h 30m
1 stop
ORD9:40 amChicago O'Hare Intl
$764
Turkish Airlines
Oct 5
ORD8:10 pmChicago O'Hare Intl
16h 30m
1 stop
BEG7:40 pmBelgrade Nikola Tesla
Oct 19
BEG4:00 pmBelgrade Nikola Tesla
24h 40m
1 stop
ORD9:40 amChicago O'Hare Intl
$769
Turkish Airlines
Oct 6
ORD8:10 pmChicago O'Hare Intl
16h 30m
1 stop
BEG7:40 pmBelgrade Nikola Tesla
Nov 1
BEG8:20 pmBelgrade Nikola Tesla
21h 40m
1 stop
ORD11:00 amChicago O'Hare Intl
$770

LOT flights from Illinois to Serbia

Our best LOT deals on Illinois to Serbia flight tickets
LOT
Sep 14
ORD9:50 pmChicago O'Hare Intl
11h 45m
1 stop
BEG4:35 pmBelgrade Nikola Tesla
Sep 30
BEG5:15 pmBelgrade Nikola Tesla
28h 55m
1 stop
ORD3:10 pmChicago O'Hare Intl
$765
LOT
Sep 13
ORD9:50 pmChicago O'Hare Intl
11h 45m
1 stop
BEG4:35 pmBelgrade Nikola Tesla
Oct 8
BEG5:15 pmBelgrade Nikola Tesla
33h 35m
1 stop
ORD7:50 pmChicago O'Hare Intl
$766
LOT
Oct 11
ORD5:10 pmChicago O'Hare Intl
40h 25m
2 stops
BEG4:35 pmBelgrade Nikola Tesla
Nov 19
BEG1:55 pmBelgrade Nikola Tesla
13h 00m
1 stop
ORD7:55 pmChicago O'Hare Intl
$777

momondo 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, momondo users made 832,500 searches. Data last updated August 17, 2026.
Use the filters below to find and compare flights from Illinois to Serbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBelgrade

ORD Chicago O'Hare Intl - BEG Belgrade Nikola Tesla

ORDBEG

Chicago O'Hare Intl

Mon 11/16

6:50 pm-1:55 pm

1 stop12h 05m

Belgrade Nikola Tesla

Mon 11/30

2:45 pm-4:15 pm

1 stop32h 30m

$761

ChicagoBelgrade

ORD Chicago O'Hare Intl - BEG Belgrade Nikola Tesla

ORDBEG

Chicago O'Hare Intl

Fri 1/15

12:50 pm-1:00 pm

2 stops17h 10m

Belgrade Nikola Tesla

Fri 1/29

9:40 am-4:15 pm

1 stop13h 35m

$763

ChicagoBelgrade

ORD Chicago O'Hare Intl - BEG Belgrade Nikola Tesla

ORDBEG

Chicago O'Hare Intl

Mon 11/16

3:45 pm-1:00 pm

2 stops14h 15m

Belgrade Nikola Tesla

Mon 11/30

2:45 pm-4:15 pm

1 stop32h 30m

$763

ChicagoBelgrade

ORD Chicago O'Hare Intl - BEG Belgrade Nikola Tesla

ORDBEG

Chicago O'Hare Intl

Mon 9/28

8:10 pm-7:40 pm

1 stop16h 30m

Belgrade Nikola Tesla

Mon 10/5

1:10 pm-9:40 am

1 stop27h 30m

$764

ChicagoBelgrade

ORD Chicago O'Hare Intl - BEG Belgrade Nikola Tesla

ORDBEG

Chicago O'Hare Intl

Sat 10/10

8:10 pm-8:10 am

1 stop29h 00m

Belgrade Nikola Tesla

Sun 10/25

8:20 pm-11:00 am

1 stop20h 40m

$765

ChicagoBelgrade

ORD Chicago O'Hare Intl - BEG Belgrade Nikola Tesla

ORDBEG

Chicago O'Hare Intl

Mon 9/14

9:50 pm-4:35 pm

1 stop11h 45m

Belgrade Nikola Tesla

Wed 9/30

5:15 pm-3:10 pm

1 stop28h 55m

$765

ChicagoBelgrade

ORD Chicago O'Hare Intl - BEG Belgrade Nikola Tesla

ORDBEG

Chicago O'Hare Intl

Sun 9/13

9:50 pm-4:35 pm

1 stop11h 45m

Belgrade Nikola Tesla

Wed 9/30

5:15 pm-3:10 pm

1 stop28h 55m

$765

ChicagoBelgrade

ORD Chicago O'Hare Intl - BEG Belgrade Nikola Tesla

ORDBEG

Chicago O'Hare Intl

Sun 12/13

7:05 am-12:50 pm

2 stops22h 45m

Belgrade Nikola Tesla

Mon 1/11

1:40 pm-1:10 pm

1 stop30h 30m

$775

ChicagoBelgrade

ORD Chicago O'Hare Intl - BEG Belgrade Nikola Tesla

ORDBEG

Chicago O'Hare Intl

Wed 10/14

2:20 pm-1:55 pm

1 stop16h 35m

Belgrade Nikola Tesla

Thu 11/5

2:40 pm-4:15 pm

1 stop32h 35m

$789
Quickest round-trip

ChicagoBelgrade

ORD Chicago O'Hare Intl - BEG Belgrade Nikola Tesla

ORDBEG

Chicago O'Hare Intl

Mon 10/12

6:00 pm-12:30 pm

1 stop11h 30m

Belgrade Nikola Tesla

Tue 11/17

6:15 am-2:52 pm

2 stops15h 37m

$803

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Serbia from

How to get the cheapest flight ticket from Illinois to Serbia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Serbia?

The cheapest month to fly to Serbia from Illinois is in February. Flight prices, which tend to average around $714, are often lower during this time because this is during the off-season. If you are unable to visit Serbia during the month of February, then departing from Illinois during the month January is also very affordable. Most momondo users find prices during this month for around $740.

What is the cheapest day to depart on your flight to Serbia?

According to our data, Thursday is the cheapest day to fly to Serbia from Illinois. The lowest ticket price found for a Thursday departure recently was $862. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Serbia is Friday, with ticket prices averaging around $1,018.

What is the cheapest Illinois to Serbia flight route?

Fly from Chicago O'Hare Intl to Belgrade Nikola Tesla for the best Illinois - Serbia flight prices

How far in advance should I book a flight from Illinois to Serbia?

You are more likely to see cheaper flights to Serbia from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Serbia for around $910 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Serbia from Illinois for as low as $783 on momondo.

What cabin class options are available on Illinois to Serbia flights?

There are 3 cabin classes available to choose from on Illinois to Serbia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Illinois to Serbia flights?

No. A direct flight is the cheapest option for a flight between Illinois to Serbia.

Cheap Illinois to Serbia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Serbia

Best Price Found

$325

Fastest flight time

9h 40m

Direct flights

Tue, Thu and Sun

Airports in Serbia

5 airports
The best one-way flight to Serbia from Illinois in the past 72 hours is $325. The best round-trip flight deal from Illinois to Serbia found on momondo in the last 72 hours is $761.
The fastest flight from Illinois to Serbia takes 9h 40m
Direct flights go from Illinois to Serbia on Tuesday, Thursday and Sunday. The only airline offering direct flights is Air Serbia.
There are 5 airports in Serbia. From Illinois there are direct flights to Belgrade Nikola Tesla (BEG).
Search flight deals

Frequently asked questions about flying from Illinois to Serbia

  • When did momondo last update prices for flights from Illinois to Serbia?

    Prices for flights from Illinois to Serbia are updated daily.

  • How many operators does momondo search for flights from Illinois to Serbia?

  • How old do you have to be to fly from Illinois to Serbia?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Serbia.

  • What documentation or ID do you need to fly to Serbia?

    The travel and health documents required for your trip to Serbia can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Serbia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Illinois to Serbia?

Best airlines flying from Illinois to Serbia

Compare and see reviews for airlines that fly from Illinois to Serbia with momondo
Airline
Rating
Free Cancellation
Price
Turkish AirlinesPriceFrom $521Free CancellationRating
7.4
4,472 reviews
Search Turkish Airlines flights
SWISSPriceFrom $546Free CancellationRating
7.5
2,036 reviews
Search SWISS flights
KLMPriceFrom $547Free CancellationRating
7.8
1,558 reviews
Search KLM flights
DeltaPriceFrom $548Free CancellationRating
7.8
8,502 reviews
Search Delta flights
United AirlinesPriceFrom $567Free CancellationRating
7.4
10,100 reviews
Search United Airlines flights
LOTPriceFrom $570Free CancellationRating
7.5
1,212 reviews
Search LOT flights
Austrian AirlinesPriceFrom $589Free CancellationRating
7.6
948 reviews
Search Austrian Airlines flights
ITA AirwaysPriceFrom $593Free CancellationRating
6.7
1,321 reviews
Search ITA Airways flights
JetBluePriceFrom $717Free CancellationRating
7.1
3,033 reviews
Search JetBlue flights
LufthansaPriceFrom $754Free CancellationRating
6.8
8,197 reviews
Search Lufthansa flights

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Serbia?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Serbia for you.

Can I find flights from Illinois to Serbia with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Illinois to Serbia flights to just show those with flexible booking policies.

How can momondo help me find flights from Illinois to Serbia?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Serbia from Illinois.

I’m not ready to book a flight from Illinois to Serbia right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Serbia, momondo offers a useful price alert feature which will track prices for flights to Serbia from Illinois and alert you when they change.

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