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Cluj Napoca

$447+ Cheap flights from Illinois to Cluj Napoca (CLJ)

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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CLJ
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Cheap flight deals from Illinois to Cluj Napoca

Keep the following information in mind while searching for Illinois to Cluj Napoca flight deals. Data was last updated November 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$485
(Kiwi.com)

One-way from

$447
(Cheapflightsfares)

Popular in

June

Cheapest in

March

Average price

$638
Provider with most accurate pricing for Chicago (CHI)-Cluj Napoca flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Cluj Napoca flights.
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From Illinois to Cluj Napoca
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One-way flight from Illinois to Cluj Napoca
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Highest demand for flights based on searches. 25% potential increase in price ($274 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Illinois to Cluj Napoca

Cheapest flights from Illinois to Cluj Napoca
Explore the most affordable flight options available from Illinois to Cluj Napoca. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 26, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/24. 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.
Sat 11/299:50 pmORD - CLJ
1 stop19h 00mLufthansa
Mon 12/156:00 amCLJ - ORD
1 stop20h 25mLufthansa
Deal found 11/24$486
This Kiwi.com deal was found by Cheapflights users on 11/25. 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.
Sat 11/299:50 pmORD - CLJ
1 stop19h 00mMultiple Airlines
Sun 12/143:15 pmCLJ - ORD
1 stop33h 05mMultiple Airlines
Deal found 11/25$498
This Kiwi.com deal was found by Cheapflights users on 11/24. 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.
Sat 11/296:50 pmORD - CLJ
1 stop11h 40mMultiple Airlines
Mon 12/156:00 amCLJ - ORD
2 stops17h 20mMultiple Airlines
Deal found 11/24$502
This Kiwi.com deal was found by Cheapflights users on 11/25. 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 12/94:10 pmORD - CLJ
1 stop33h 55mSWISS
Sun 1/113:15 pmCLJ - ORD
1 stop29h 30mSWISS
Deal found 11/25$516
This Kiwi.com deal was found by Cheapflights users on 11/25. 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.
Sat 11/294:10 pmORD - CLJ
1 stop14h 20mSWISS
Sun 12/143:15 pmCLJ - ORD
2 stops30h 55mSWISS
Deal found 11/25$524
This United Airlines deal was found by Cheapflights users on 11/26. 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.
Sat 11/297:15 amORD - CLJ
2 stops22h 25mUnited Airlines
Mon 12/156:00 amCLJ - ORD
1 stop16h 10mUnited Airlines
Deal found 11/26$532
This United Airlines deal was found by Cheapflights users on 11/25. 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.
Sun 12/77:15 amORD - CLJ
2 stops22h 25mUnited Airlines
Sun 1/186:00 amCLJ - ORD
1 stop20h 25mUnited Airlines
Deal found 11/25$533
This KAYAK deal was found by Cheapflights users on 11/25. 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 - CLJ
1 stop19h 05mLufthansa
Sat 1/176:00 amCLJ - ORD
1 stop20h 25mLufthansa
Deal found 11/25$534
This United Airlines deal was found by Cheapflights users on 11/25. 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.
Thu 12/258:15 pmORD - CLJ
2 stops33h 25mUnited Airlines
Thu 1/156:00 amCLJ - ORD
1 stop20h 25mUnited Airlines
Deal found 11/25$535
This CheapOair deal was found by Cheapflights users on 11/26. 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 12/19:05 pmORD - CLJ
2 stops53h 00mMultiple Airlines
Mon 12/86:00 amCLJ - ORD
2 stops37h 18mMultiple Airlines
Deal found 11/26$538
This SWISS deal was found by Cheapflights users on 11/26. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/19:05 pmORD - CLJ
2 stops53h 00mSWISS
Mon 12/83:25 pmCLJ - ORD
1 stop29h 20mSWISS
Deal found 11/26$539

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Cluj Napoca 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 November 26, 2025.
Use the filters below to find and compare flights from Illinois to Cluj Napoca that are best for you.

Fly from

Illinois

Fly to

Cluj Napoca

Route

Depart

Return

Price

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Mon 2/9

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

Sun 2/22

6:00 am-6:25 pm

1 stop20h 25m

$529

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Tue 2/10

9:50 pm-12:55 am

1 stop19h 05m

Cluj Napoca

Tue 2/24

6:00 am-6:25 pm

1 stop20h 25m

$529

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Tue 3/3

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

Fri 3/13

6:00 am-7:25 pm

1 stop20h 25m

$529

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Tue 2/10

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

Thu 2/26

6:00 am-2:10 pm

1 stop16h 10m

$529

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Wed 3/4

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

Wed 3/11

6:00 am-7:25 pm

1 stop20h 25m

$529

St. LouisCluj Napoca

STL - CLJ

STLCLJ

Lambert-St Louis

Wed 2/11

1:15 pm-12:55 am

2 stops27h 40m

Cluj Napoca

Sun 2/15

6:00 am-8:23 pm

2 stops22h 23m

$530

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Tue 2/10

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

Sat 2/21

6:00 am-2:10 pm

1 stop16h 10m

$530

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Wed 3/4

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

Mon 3/16

6:00 am-7:25 pm

1 stop20h 25m

$530

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Tue 3/3

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

Thu 3/12

6:00 am-7:25 pm

1 stop20h 25m

$530

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Tue 2/10

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

Sun 2/22

6:00 am-6:25 pm

1 stop20h 25m

$530

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/24

Showing 1-10 of 16 results
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Best time to book a flight from Illinois to Cluj Napoca

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

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

Currently, October is the cheapest month in which you can book a flight from Illinois to Cluj Napoca (average of $491). Flying from Illinois to Cluj Napoca in June is currently the most expensive (average of $928). 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 CLJ?

Find hourly flight availability from Illinois to Cluj Napoca. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 26, 2025.

It’s typically best to fly out from Illinois to Cluj Napoca in the morning. Doing so could potentially save you 33% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from Illinois to Cluj Napoca?

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

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

How much does it cost to fly round-trip from Illinois to Cluj Napoca?

Related info for your journey

Find useful and relevant information for your journey from Illinois to Cluj Napoca. 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 Cluj Napoca from Illinois?

    Located just 3.2 mi from the city center, Cluj Napoca (CLJ) is the airport most travelers will use when flying to Cluj Napoca from Illinois.

  • How long is the flight from Illinois to Cluj Napoca?

    Departing from Illinois to Cluj Napoca will take you 11h 40m. The distance from Illinois to Cluj Napoca is about 5008 mi. This flight may include one or multiple stops.

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

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

  • How can I find direct flights from Illinois to Cluj Napoca?

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

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

    Yes. Cheapflights offers flight deals from Illinois to Cluj Napoca 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 Cluj Napoca?

    Currently, October is the cheapest month in which you can book a flight from Illinois to Cluj Napoca (average of $491). Flying from Illinois to Cluj Napoca in June is currently the most expensive (average of $928). 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 5 airlines flying from Illinois to Cluj Napoca

Discover the top 5 airlines that operate flights from Illinois to Cluj Napoca. 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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$535Average$791FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$571Average$902FlexibilityNo cancel feeOn-time76%
LOTCheapest$582Average$975FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$588Average$785FlexibilityNo cancel feeOn-time69%
SWISSCheapest$609Average$1,024FlexibilityNo cancel feeOn-time79%

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