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Zagreb

$269+ Cheap flights from Illinois to Zagreb (ZAG)

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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ZAG
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Illinois to Zagreb

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

Round-trip from

$567
(Delta)

One-way from

$269
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$733
From Illinois to Zagreb Franjo Tuđman
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One-way flight from Illinois to Zagreb Franjo Tuđman
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Highest demand for flights based on searches. 25% potential increase in price ($257 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Illinois to Zagreb

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

This oojo deal was found by Cheapflights users on 9/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/79:40 pmORD - ZAG
1 stop12h 40mLOT
Sat 10/186:05 pmZAG - ORD
1 stop32h 35mLOT
Deal found 9/16$592
This CrystalTravel deal was found by Cheapflights users on 9/17. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1510:30 pmORD - ZAG
1 stop18h 05mLufthansa
Wed 10/226:15 amZAG - ORD
1 stop13h 40mLufthansa
Deal found 9/17$595
This CheapOair deal was found by Cheapflights users on 9/16. 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 10/276:28 pmORD - ZAG
2 stops13h 22mMultiple Airlines
Mon 11/32:40 pmZAG - ORD
1 stop29h 30mMultiple Airlines
Deal found 9/16$598
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/79:40 pmORD - ZAG
1 stop16h 40mLufthansa
Tue 10/216:05 amZAG - ORD
1 stop13h 50mLufthansa
Deal found 9/16$602
This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1710:46 amORD - ZAG
2 stops20h 49mDelta
Tue 12/26:30 amZAG - ORD
2 stops22h 16mDelta
Deal found 9/16$611
This Cheapflightsfares deal was found by Cheapflights users on 9/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/810:30 pmORD - ZAG
1 stop18h 05mLufthansa
Wed 10/226:15 amZAG - ORD
1 stop13h 40mLufthansa
Deal found 9/17$618
This FlightHub deal was found by Cheapflights users on 9/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/69:40 pmORD - ZAG
1 stop12h 40mLOT
Mon 10/206:05 pmZAG - ORD
1 stop32h 35mLOT
Deal found 9/16$619
This Gotogate deal was found by Cheapflights users on 9/17. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1510:30 pmORD - ZAG
1 stop18h 05mMultiple Airlines
Wed 10/221:20 pmZAG - ORD
2 stops27h 31mMultiple Airlines
Deal found 9/17$621
This FlightHub deal was found by Cheapflights users on 9/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/98:15 pmORD - ZAG
2 stops33h 35mMultiple Airlines
Sun 11/232:35 pmZAG - ORD
1 stop12h 30mMultiple Airlines
Deal found 9/17$624
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/315:24 pmSTL - ZAG
2 stops22h 51mUnited Airlines
Fri 11/76:15 amZAG - STL
1 stop14h 40mUnited Airlines
Deal found 9/16$626
This United Airlines deal was found by Cheapflights users on 9/17. 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.
Wed 10/810:30 pmORD - ZAG
1 stop18h 05mUnited Airlines
Wed 10/226:15 amZAG - ORD
1 stop13h 40mUnited Airlines
Deal found 9/17$627
This CheapOair deal was found by Cheapflights users on 9/16. 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.
Tue 10/712:52 pmORD - ZAG
2 stops16h 43mMultiple Airlines
Tue 10/216:05 amZAG - ORD
1 stop13h 50mMultiple Airlines
Deal found 9/16$629

Cheapflights Fare Finder

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

Fly from

Illinois

Fly to

Zagreb

Route

Depart

Return

Price

St. LouisZagreb

STL - ZAG

STLZAG

Lambert-St Louis

Tue 3/3

10:45 am-2:35 pm

2 stops20h 50m

Zagreb Franjo Tuđman

Tue 3/10

6:30 am-11:40 pm

2 stops23h 10m

$567

St. LouisZagreb

STL - ZAG

STLZAG

Lambert-St Louis

Tue 3/3

1:11 pm-10:25 pm

2 stops26h 14m

Zagreb Franjo Tuđman

Tue 3/10

2:35 pm-3:29 pm

2 stops30h 54m

$584

St. LouisZagreb

STL - ZAG

STLZAG

Lambert-St Louis

Tue 3/3

4:05 pm-10:25 pm

2 stops23h 20m

Zagreb Franjo Tuđman

Tue 3/10

2:35 pm-3:29 pm

2 stops30h 54m

$586

ChicagoZagreb

ORD - ZAG

ORDZAG

Chicago O'Hare Intl

Wed 1/14

2:00 pm-1:50 pm

2 stops16h 50m

Zagreb Franjo Tuđman

Wed 1/28

1:35 pm-11:06 am

2 stops28h 31m

$591

ChicagoZagreb

ORD - ZAG

ORDZAG

Chicago O'Hare Intl

Sun 11/9

9:55 pm-12:05 pm

2 stops31h 10m

Zagreb Franjo Tuđman

Sun 11/23

6:00 pm-7:55 pm

2 stops32h 55m

$618

ChicagoZagreb

ORD - ZAG

ORDZAG

Chicago O'Hare Intl

Fri 2/13

6:25 pm-10:15 pm

1 stop20h 50m

Zagreb Franjo Tuđman

Fri 2/27

6:15 am-2:55 pm

2 stops15h 40m

$623

St. LouisZagreb

STL - ZAG

STLZAG

Lambert-St Louis

Fri 10/31

5:24 pm-10:15 pm

2 stops22h 51m

Zagreb Franjo Tuđman

Fri 11/7

6:15 am-1:55 pm

1 stop14h 40m

$626

ChicagoZagreb

ORD - ZAG

ORDZAG

Chicago O'Hare Intl

Thu 11/6

7:00 am-1:50 pm

2 stops23h 50m

Zagreb Franjo Tuđman

Thu 11/20

2:45 pm-8:05 pm

1 stop12h 20m

$627

ChicagoZagreb

ORD - ZAG

ORDZAG

Chicago O'Hare Intl

Thu 1/15

1:00 pm-10:25 pm

2 stops26h 25m

Zagreb Franjo Tuđman

Thu 1/29

6:10 am-1:10 pm

1 stop14h 00m

$628

ChicagoZagreb

ORD - ZAG

ORDZAG

Chicago O'Hare Intl

Sat 1/17

10:40 am-1:15 pm

2 stops19h 35m

Zagreb Franjo Tuđman

Sat 1/31

8:45 am-9:35 pm

2 stops19h 50m

$629

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 38 results
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Best time to book a flight from Illinois to Zagreb

Have a flexible travel schedule? Discover the best time to fly to Zagreb 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 Zagreb

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

Currently, November is the cheapest month in which you can book a flight from Illinois to Zagreb (average of $641). Flying from Illinois to Zagreb in June is currently the most expensive (average of $1,257). 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 ZAG?

Find hourly flight availability from Illinois to Zagreb. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

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

Related info for your journey

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

  • What airport do you fly into for flights to Zagreb from Illinois?

    For a flight from Illinois to Zagreb, you will be flying into Franjo Tuđman. Zagreb Franjo Tuđman (ZAG) is just 6.7 mi from the center of the city.

  • How long is the flight from Illinois to Zagreb?

    Airlines like Delta, United Airlines, and Air Canada fly from Illinois to Zagreb in about 16h 50m. The time it takes to get you to your destination can typically vary by up to 9h 24m. The distance between Illinois and Zagreb is about 4784 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Illinois to Zagreb?

    The most popular flight routes from Illinois to Zagreb are Chicago O'Hare Intl - Zagreb Franjo Tuđman, Lambert-St Louis - Zagreb Franjo Tuđman and Chicago Midway - Zagreb Franjo Tuđman.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Illinois to Zagreb (average of $641). Flying from Illinois to Zagreb in June is currently the most expensive (average of $1,257). 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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Top 8 airlines flying from Illinois to Zagreb

Discover the top 8 airlines that operate flights from Illinois to Zagreb. 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$534Average$1,077FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$549Average$721FlexibilityNo cancel feeOn-time77%
LOTCheapest$597Average$960FlexibilityNo cancel feeOn-time81%
KLMCheapest$613Average$881FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$618Average$948FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$624Average$964FlexibilityNo cancel feeOn-time76%
Air SerbiaCheapest$625Average$913FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$847Average$1,016FlexibilityNo cancel feeOn-time77%

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