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Cheap flights from Chicago O'Hare Intl Airport to Cluj Napoca from $305

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Cluj Napoca departing on 11/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago O'Hare Intl Airport to Cluj Napoca

Cheap round-trip flights

Enter your travel dates to find the best prices.
Turkish Airlines Logo
11:50 am - 9:00 amORD-CLJ
13h 10m1 stop
Turkish Airlines Logo
9:50 am - 10:05 amCLJ-ORD
32h 15m1 stop
$509Turkish Airlines
Find Deal
Sun, Feb 8 - Wed, Feb 18
LOT Logo
9:55 pm - 1:15 pmORD-CLJ
31h 20m1 stop
LOT Logo
1:35 pm - 8:00 pmCLJ-ORD
14h 25m1 stop
$515LOT
Find Deal
Thu, Dec 4 - Sun, Dec 14
Lufthansa Logo
9:50 pm - 12:55 amORD-CLJ
19h 05m1 stop
Lufthansa Logo
6:00 am - 6:25 pmCLJ-ORD
20h 25m1 stop
$520Lufthansa
Find Deal
Wed, Nov 26 - Wed, Dec 10
LOT Logo
9:55 pm - 1:15 pmORD-CLJ
31h 20m1 stop
LOT Logo
1:35 pm - 7:55 pmCLJ-ORD
38h 20m2 stops
$525LOT
Find Deal
Thu, Dec 4 - Sun, Dec 14
United Airlines Logo
6:00 pm - 1:40 pmORD-CLJ
11h 40m1 stop
United Airlines Logo
6:00 am - 2:10 pmCLJ-ORD
16h 10m1 stop
$529United Airlines
Find Deal
Thu, Feb 5 - Mon, Feb 16
United Airlines Logo
6:00 pm - 1:40 pmORD-CLJ
11h 40m1 stop
United Airlines Logo
6:00 am - 6:25 pmCLJ-ORD
20h 25m1 stop
$531United Airlines
Find Deal
Sat, Feb 7 - Fri, Feb 20
United Airlines Logo
10:52 am - 1:40 pmORD-CLJ
18h 48m2 stops
United Airlines Logo
6:00 am - 2:10 pmCLJ-ORD
16h 10m1 stop
$534United Airlines
Find Deal
Thu, Feb 5 - Sat, Feb 21
United Airlines Logo
7:17 am - 1:40 pmORD-CLJ
22h 23m2 stops
United Airlines Logo
6:00 am - 6:25 pmCLJ-ORD
20h 25m1 stop
$535United Airlines
Find Deal
Thu, Feb 5 - Fri, Feb 20
United Airlines Logo
9:15 pm - 1:40 pmORD-CLJ
32h 25m2 stops
United Airlines Logo
6:00 am - 2:10 pmCLJ-ORD
16h 10m1 stop
$536United Airlines
Find Deal
Fri, Feb 6 - Thu, Feb 19
United Airlines Logo
9:15 pm - 1:40 pmORD-CLJ
32h 25m2 stops
United Airlines Logo
6:00 am - 6:25 pmCLJ-ORD
20h 25m1 stop
$537United Airlines
Find Deal
Fri, Feb 6 - Fri, Feb 20

LOT flights from Chicago O'Hare Intl Airport to Cluj Napoca

Our best LOT deals on Chicago O'Hare Intl Airport to Cluj Napoca flight tickets
LOT
Dec 4
ORD9:55 pmChicago O'Hare Intl
31h 20m
1 stop
CLJ1:15 pmCluj Napoca
Dec 14
CLJ1:35 pmCluj Napoca
14h 25m
1 stop
ORD8:00 pmChicago O'Hare Intl
$515
Find similar
LOT
Dec 4
ORD9:55 pmChicago O'Hare Intl
31h 20m
1 stop
CLJ1:15 pmCluj Napoca
Dec 14
CLJ1:35 pmCluj Napoca
38h 20m
2 stops
ORD7:55 pmChicago O'Hare Intl
$525
Find similar
LOT
Nov 20
ORD9:55 pmChicago O'Hare Intl
31h 20m
1 stop
CLJ1:15 pmCluj Napoca
Dec 17
CLJ1:55 pmCluj Napoca
34h 25m
1 stop
ORD4:20 pmChicago O'Hare Intl
$972
Find similar

United Airlines flights from Chicago O'Hare Intl Airport to Cluj Napoca

Our best United Airlines deals on Chicago O'Hare Intl Airport to Cluj Napoca flight tickets
United Airlines
Mar 4
ORD6:00 pmChicago O'Hare Intl
11h 40m
1 stop
CLJ1:40 pmCluj Napoca
Mar 8
CLJ6:00 amCluj Napoca
20h 25m
1 stop
ORD6:25 pmChicago O'Hare Intl
$559
Find similar
United Airlines
Dec 1
ORD6:50 pmChicago O'Hare Intl
34h 50m
2 stops
CLJ1:40 pmCluj Napoca
Dec 12
CLJ6:00 amCluj Napoca
25h 44m
2 stops
ORD11:44 pmChicago O'Hare Intl
$563
Find similar
United Airlines
Mar 4
ORD1:10 pmChicago O'Hare Intl
16h 30m
2 stops
CLJ1:40 pmCluj Napoca
Mar 8
CLJ6:00 amCluj Napoca
20h 25m
1 stop
ORD6:25 pmChicago O'Hare Intl
$564
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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, momondo users made 832,500 searches. Data last updated November 13, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Cluj Napoca that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Sun 2/8

11:50 am-9:00 am

1 stop13h 10m

Cluj Napoca

Wed 2/18

9:50 am-10:05 am

1 stop32h 15m

$509

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Thu 12/4

9:55 pm-1:15 pm

1 stop31h 20m

Cluj Napoca

Sun 12/14

1:35 pm-8:00 pm

1 stop14h 25m

$515

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Wed 11/26

9:50 pm-12:55 am

1 stop19h 05m

Cluj Napoca

Wed 12/10

6:00 am-6:25 pm

1 stop20h 25m

$520

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Thu 12/4

9:55 pm-1:15 pm

1 stop31h 20m

Cluj Napoca

Sun 12/14

1:35 pm-7:55 pm

2 stops38h 20m

$525

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Thu 2/5

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

Mon 2/16

6:00 am-2:10 pm

1 stop16h 10m

$529

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Sat 2/7

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

Fri 2/20

6:00 am-6:25 pm

1 stop20h 25m

$531

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Thu 2/5

10:52 am-1:40 pm

2 stops18h 48m

Cluj Napoca

Sat 2/21

6:00 am-2:10 pm

1 stop16h 10m

$534

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Thu 2/5

7:17 am-1:40 pm

2 stops22h 23m

Cluj Napoca

Fri 2/20

6:00 am-6:25 pm

1 stop20h 25m

$535

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Fri 2/6

9:15 pm-1:40 pm

2 stops32h 25m

Cluj Napoca

Thu 2/19

6:00 am-2:10 pm

1 stop16h 10m

$536

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Fri 2/6

9:15 pm-1:40 pm

2 stops32h 25m

Cluj Napoca

Fri 2/20

6:00 am-6:25 pm

1 stop20h 25m

$537

Flights are sorted by cheapest round-trip flights first.

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

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport 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

What is the cheapest month to fly to Cluj Napoca?

The month of October is, on average, the cheapest month to fly to Cluj Napoca from Chicago O'Hare Intl Airport, with most prices found around $558. If you don’t want to visit Cluj Napoca in October, then you should wait until March to fly from Chicago O'Hare Intl Airport, when ticket prices are also cheap, with an average price of $593.

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 Chicago O'Hare Intl Airport. 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 Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Cluj Napoca for around $754 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Cluj Napoca from Chicago O'Hare Intl Airport for as low as $719 on momondo.

When to book flights from Chicago O'Hare Intl Airport to Cluj Napoca

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Cluj Napoca according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Cluj Napoca (ORD to CLJ) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Cluj Napoca

Direct flights

None
There are no direct flights from Chicago O'Hare Intl Airport to Cluj Napoca. There are no popular flight routes from Chicago O'Hare Intl Airport to Cluj Napoca.
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  • How far is Chicago O'Hare Intl to Cluj Napoca by plane?

    A flight from Chicago O'Hare Intl to Cluj Napoca will travel around 5006.5 mi. Flights usually cover this in 11h 40m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Cluj Napoca Airport?

    Prices for flights from Chicago O'Hare Intl Airport to Cluj Napoca Airport are updated daily.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Cluj Napoca Airport?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport 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 Chicago O'Hare Intl Airport 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.

  • What is the most popular airline from Chicago O'Hare Intl Airport to Cluj Napoca?

Best airlines flying from Chicago O'Hare Intl Airport to Cluj Napoca

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Cluj Napoca with momondo
Airline
Rating
Free Cancellation
Price
Turkish AirlinesPriceFrom $532Free CancellationRating
7.3
4,043 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $569Free CancellationRating
6.8
7,572 reviews
Search Lufthansa flights
LOTPriceFrom $582Free CancellationRating
7.5
1,134 reviews
Search LOT flights
United AirlinesPriceFrom $588Free CancellationRating
7.4
9,017 reviews
Search United Airlines flights
SWISSPriceFrom $609Free CancellationRating
7.5
1,784 reviews
Search SWISS flights

Traveling to a place near Cluj Napoca?

Book flights to Cluj Napoca if you plan to visit one of these locations
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Why use momondo?

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

Finding the right flight to Cluj Napoca from Chicago is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Cluj Napoca quick and easy, saving you time and money.

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

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

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

momondo provides multiple filters to help you find the best flight to Cluj Napoca from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

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

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