What is the cheapest airline that flies from Illinois to Cluj Napoca?

Lufthansa, LOT, and United Airlines are the most popular carriers operating from Illinois to Cluj Napoca

What airlines fly to Cluj Napoca?

Lufthansa, Turkish Airlines and LOT are the top three most popular airlines that fly to Cluj Napoca from Illinois according to our data. Lufthansa is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Cluj Napoca. Keep in mind that there are 5 different airlines that fly to Cluj Napoca on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Illinois to Cluj Napoca Airport?

Prices for flights from Illinois to Cluj Napoca Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Illinois to Cluj Napoca Airport?

As of December 2025, there are 5 operators available to choose from for flights from Illinois to Cluj Napoca Airport.

How old do you have to be to fly from Illinois to Cluj Napoca Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Illinois to Cluj Napoca Airport.

What documentation or ID do you need to fly to Cluj Napoca Airport?

The travel and health documents you'll need for your trip to Cluj Napoca Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Cluj Napoca Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$449 Cheap Flights from Illinois to Cluj Napoca in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Illinois to Cluj Napoca

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:55 pm - 5:20 pm

ORD

CLJ

11h 25m1 stop

1:55 pm - 8:00 pm

CLJ

ORD

14h 05m1 stop

$501LOT

mié., ene. 21 - sáb., ene. 31

8:00 am - 1:40 pm

ORD

CLJ

21h 40m2 stops

6:00 am - 6:25 pm

CLJ

ORD

20h 25m1 stop

$521Multiple Airlines

sáb., ene. 24 - sáb., ene. 31

7:15 am - 10:05 am

ORD

CLJ

18h 50m2 stops

6:00 am - 6:25 pm

CLJ

ORD

20h 25m1 stop

$522Multiple Airlines

mié., ene. 21 - sáb., ene. 31

9:50 pm - 12:50 am

ORD

CLJ

19h 00m1 stop

6:00 am - 6:25 pm

CLJ

ORD

20h 25m1 stop

$525Lufthansa

sáb., ene. 24 - sáb., ene. 31

9:50 pm - 12:55 am

ORD

CLJ

19h 05m1 stop

6:00 am - 2:10 pm

CLJ

ORD

16h 10m1 stop

$527Lufthansa

mié., ene. 21 - sáb., ene. 31

9:40 pm - 12:30 am

ORD

CLJ

18h 50m1 stop

6:00 am - 10:08 am

CLJ

ORD

36h 08m2 stops

$531Multiple Airlines

vie., abr. 3 - vie., abr. 17

9:50 pm - 12:55 am

ORD

CLJ

19h 05m1 stop

6:00 am - 9:15 pm

CLJ

ORD

23h 15m2 stops

$532Lufthansa

mié., ene. 21 - sáb., ene. 31

3:45 pm - 12:55 am

ORD

CLJ

25h 10m2 stops

6:00 am - 6:25 pm

CLJ

ORD

20h 25m1 stop

$534Lufthansa

mié., ene. 7 - mié., ene. 21

6:00 pm - 1:40 pm

ORD

CLJ

11h 40m1 stop

2:25 pm - 7:29 am

CLJ

ORD

24h 04m2 stops

$540United Airlines

lun., dic. 29 - vie., mar. 20

9:57 am - 1:40 pm

STL

CLJ

19h 43m2 stops

6:00 am - 3:29 pm

CLJ

STL

41h 29m2 stops

$542United Airlines

jue., ene. 29 - lun., feb. 2

United Airlines flights from Illinois to Cluj Napoca

Our best United Airlines deals on Illinois to Cluj Napoca flight tickets

United Airlines

Jan 22

ORD4:15 pmChicago O'Hare Intl

13h 25m

2 stops

CLJ1:40 pmCluj Napoca

Jan 31

CLJ6:00 amCluj Napoca

16h 10m

1 stop

ORD2:10 pmChicago O'Hare Intl

$536

Find similar

United Airlines

Dec 29

ORD6:00 pmChicago O'Hare Intl

11h 40m

1 stop

CLJ1:40 pmCluj Napoca

Mar 20

CLJ2:25 pmCluj Napoca

24h 04m

2 stops

ORD7:29 amChicago O'Hare Intl

$540

Find similar

United Airlines

Jan 29

STL9:57 amLambert-St Louis

19h 43m

2 stops

CLJ1:40 pmCluj Napoca

Feb 2

CLJ6:00 amCluj Napoca

41h 29m

2 stops

STL3:29 pmLambert-St Louis

$542

Find similar

Lufthansa flights from Illinois to Cluj Napoca

Our best Lufthansa deals on Illinois to Cluj Napoca flight tickets

Lufthansa

Jan 24

ORD9:50 pmChicago O'Hare Intl

19h 00m

1 stop

CLJ12:50 amCluj Napoca

Jan 31

CLJ6:00 amCluj Napoca

20h 25m

1 stop

ORD6:25 pmChicago O'Hare Intl

$525

Find similar

Lufthansa

Jan 7

ORD3:45 pmChicago O'Hare Intl

25h 10m

2 stops

CLJ12:55 amCluj Napoca

Jan 21

CLJ6:00 amCluj Napoca

20h 25m

1 stop

ORD6:25 pmChicago O'Hare Intl

$534

Find similar

Lufthansa

Dec 29

ORD6:00 pmChicago O'Hare Intl

11h 40m

1 stop

CLJ1:40 pmCluj Napoca

Mar 20

CLJ6:00 amCluj Napoca

20h 25m

1 stop

ORD7:25 pmChicago O'Hare Intl

$626

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

mié. 1/21

9:55 pm-5:20 pm

1 stop11h 25m

Cluj Napoca

sáb. 1/31

1:55 pm-8:00 pm

1 stop14h 05m

$501

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

sáb. 1/24

8:00 am-1:40 pm

2 stops21h 40m

Cluj Napoca

sáb. 1/31

6:00 am-6:25 pm

1 stop20h 25m

$521

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

mié. 1/21

7:15 am-10:05 am

2 stops18h 50m

Cluj Napoca

sáb. 1/31

6:00 am-6:25 pm

1 stop20h 25m

$522

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

sáb. 1/24

9:50 pm-12:50 am

1 stop19h 00m

Cluj Napoca

sáb. 1/31

6:00 am-6:25 pm

1 stop20h 25m

$525

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

mié. 1/21

9:50 pm-12:55 am

1 stop19h 05m

Cluj Napoca

sáb. 1/31

6:00 am-2:10 pm

1 stop16h 10m

$527

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

vie. 4/3

9:40 pm-12:30 am

1 stop18h 50m

Cluj Napoca

vie. 4/17

6:00 am-10:08 am

2 stops36h 08m

$531

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

mié. 1/21

9:50 pm-12:55 am

1 stop19h 05m

Cluj Napoca

sáb. 1/31

6:00 am-9:15 pm

2 stops23h 15m

$532

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

mié. 1/7

3:45 pm-12:55 am

2 stops25h 10m

Cluj Napoca

mié. 1/21

6:00 am-6:25 pm

1 stop20h 25m

$534

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

lun. 12/29

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

vie. 3/20

2:25 pm-7:29 am

2 stops24h 04m

$540

St. LouisCluj Napoca

STL - CLJ

STLCLJ

Lambert-St Louis

jue. 1/29

9:57 am-1:40 pm

2 stops19h 43m

Cluj Napoca

lun. 2/2

6:00 am-3:29 pm

2 stops41h 29m

$542

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois to Cluj Napoca

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

Prices

Airlines

What is the cheapest month to fly to Cluj Napoca?

The month of February is, on average, the cheapest month to fly to Cluj Napoca from Illinois, with most prices found around $588. If you don’t want to visit Cluj Napoca in February, then you should wait until October to fly from Illinois, when ticket prices are also cheap, with an average price of $600.

What is the cheapest day to depart on your flight to Cluj Napoca?

According to our data, Tuesday is the cheapest day to fly to Cluj Napoca from Illinois. The lowest ticket price found for a Tuesday departure recently was $881. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Cluj Napoca on Sunday is $1,107.

What is the cheapest time of day to depart on your flight to Cluj Napoca?

The cheapest time of day to fly to Cluj Napoca is in the morning when flights can be purchased for as low as $650. Try not to purchase tickets in the afternoon because they tend to be around $1,027. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to Cluj Napoca?

You are more likely to see cheaper flights to Cluj Napoca from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Cluj Napoca for around $783 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Cluj Napoca from Illinois for as low as $719 on momondo.

Cheap Illinois to Cluj Napoca flight deals and tips

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

Fastest flight time	11h 40m
Direct flights	None

The fastest flight from Illinois to Cluj Napoca takes 11h 40m

There are no direct flights from Illinois to Cluj Napoca. There are no popular flight routes from Illinois to Cluj Napoca.

Search flight deals

When did momondo last update prices for flights from Illinois to Cluj Napoca Airport?
Prices for flights from Illinois to Cluj Napoca Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Illinois to Cluj Napoca Airport?
As of December 2025, there are 5 operators available to choose from for flights from Illinois to Cluj Napoca Airport.
How old do you have to be to fly from Illinois to Cluj Napoca Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Illinois to Cluj Napoca Airport.
What documentation or ID do you need to fly to Cluj Napoca Airport?
The travel and health documents you'll need for your trip to Cluj Napoca Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Cluj Napoca Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Illinois to Cluj Napoca

Compare and see reviews for airlines that fly from Illinois to Cluj Napoca with momondo

Airline	Rating	Free Cancellation	Price
Turkish Airlines	PriceFrom $535	Free Cancellation	Rating 7.3 4,090 reviews	Search Turkish Airlines flights
Lufthansa	PriceFrom $576	Free Cancellation	Rating 6.8 7,626 reviews	Search Lufthansa flights
LOT	PriceFrom $582	Free Cancellation	Rating 7.6 1,146 reviews	Search LOT flights
United Airlines	PriceFrom $588	Free Cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights
SWISS	PriceFrom $609	Free Cancellation	Rating 7.5 1,810 reviews	Search SWISS flights

Turda

Why use momondo?

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

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 Cluj Napoca for you.

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

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

How can momondo help me find flights from Illinois to Cluj Napoca?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Illinois to Cluj Napoca.

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

Yes. momondo can track prices for Illinois to Cluj Napoca flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.