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Cheap flights from Chicago O'Hare Intl Airport to Cluj Napoca from $331

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 1/6. 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 Chicago O'Hare Intl Airport to Cluj Napoca

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
12:50 pm - 1:50 pmORD  Chicago O'Hare Intl-CLJ Cluj Napoca
17h 00m2 stops Toronto Pearson Intl Munich Franz Josef Strauss
United Airlines Logo
2:35 pm - 11:22 pmCLJ  Cluj Napoca-ORD Chicago O'Hare Intl
16h 47m2 stops Munich Franz Josef Strauss Washington, D.C. Dulles Intl
$796United Airlines
Wed, Dec 23 - Tue, Dec 29
United Airlines Logo
12:50 pm - 1:50 pmORD  Chicago O'Hare Intl-CLJ Cluj Napoca
17h 00m2 stops Toronto Pearson Intl Munich Franz Josef Strauss
United Airlines Logo
2:35 pm - 2:10 pmCLJ  Cluj Napoca-ORD Chicago O'Hare Intl
31h 35m1 stop Munich Franz Josef Strauss
$797United Airlines
Wed, Dec 23 - Mon, Dec 28
Lufthansa Logo
3:35 pm - 5:25 pmORD  Chicago O'Hare Intl-CLJ Cluj Napoca
17h 50m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:00 am - 12:35 pmCLJ  Cluj Napoca-ORD Chicago O'Hare Intl
14h 35m1 stop Munich Franz Josef Strauss
$798Lufthansa
Sun, Sep 6 - Sun, Sep 20
Turkish Airlines Logo
11:25 am - 9:05 amORD  Chicago O'Hare Intl-CLJ Cluj Napoca
13h 40m1 stop Istanbul
Turkish Airlines Logo
9:55 am - 9:40 amCLJ  Cluj Napoca-ORD Chicago O'Hare Intl
31h 45m1 stop Istanbul
$798Turkish Airlines
Sat, Sep 19 - Wed, Oct 7
Turkish Airlines Logo
11:25 am - 9:05 amORD  Chicago O'Hare Intl-CLJ Cluj Napoca
13h 40m1 stop Istanbul
Turkish Airlines Logo
9:55 am - 9:40 amCLJ  Cluj Napoca-ORD Chicago O'Hare Intl
31h 45m1 stop Istanbul
$798Turkish Airlines
Sat, Sep 19 - Thu, Oct 1
LOT Logo
5:10 pm - 1:20 pmORD  Chicago O'Hare Intl-CLJ Cluj Napoca
36h 10m2 stops Krakow J. Paul II Balice Warsaw Frederic Chopin
LOT Logo
2:00 pm - 7:50 pmCLJ  Cluj Napoca-ORD Chicago O'Hare Intl
13h 50m1 stop Warsaw Frederic Chopin
$803LOT
Tue, Sep 1 - Tue, Sep 8
LOT Logo
5:10 pm - 1:20 pmORD  Chicago O'Hare Intl-CLJ Cluj Napoca
36h 10m2 stops Krakow J. Paul II Balice Warsaw Frederic Chopin
LOT Logo
2:00 pm - 7:50 pmCLJ  Cluj Napoca-ORD Chicago O'Hare Intl
13h 50m1 stop Warsaw Frederic Chopin
$803LOT
Sun, Sep 13 - Wed, Sep 23
Air Canada Logo
8:50 pm - 1:50 pmORD  Chicago O'Hare Intl-CLJ Cluj Napoca
33h 00m2 stops Toronto Pearson Intl Munich Franz Josef Strauss
Air Canada Logo
2:35 pm - 7:58 pmCLJ  Cluj Napoca-ORD Chicago O'Hare Intl
37h 23m2 stops Munich Franz Josef Strauss Toronto Pearson Intl
$805Air Canada
Tue, Dec 22 - Wed, Dec 30
Lufthansa Logo
1:55 pm - 1:10 pmORD  Chicago O'Hare Intl-CLJ Cluj Napoca
15h 15m2 stops Charlotte Douglas Munich Franz Josef Strauss
Lufthansa Logo
6:00 am - 12:35 pmCLJ  Cluj Napoca-ORD Chicago O'Hare Intl
14h 35m1 stop Munich Franz Josef Strauss
$806Lufthansa
Sun, Sep 6 - Sun, Sep 20
Multiple Airlines Logo
8:10 pm - 11:10 pmORD  Chicago O'Hare Intl-CLJ Cluj Napoca
19h 00m2 stops Istanbul Bucharest Otopeni Intl
Multiple Airlines Logo
8:45 am - 9:40 amCLJ  Cluj Napoca-ORD Chicago O'Hare Intl
32h 55m2 stops Bucharest Otopeni Intl Istanbul
$811Multiple Airlines
Wed, Sep 16 - Wed, Sep 23

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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
Nov 3
ORD1:07 pmChicago O'Hare Intl
16h 43m
2 stops
CLJ1:50 pmCluj Napoca
Nov 24
CLJ6:10 amCluj Napoca
19h 33m
2 stops
ORD5:43 pmChicago O'Hare Intl
$792
United Airlines
Dec 23
ORD12:50 pmChicago O'Hare Intl
17h 00m
2 stops
CLJ1:50 pmCluj Napoca
Dec 29
CLJ2:35 pmCluj Napoca
16h 47m
2 stops
ORD11:22 pmChicago O'Hare Intl
$796
United Airlines
Dec 23
ORD12:50 pmChicago O'Hare Intl
17h 00m
2 stops
CLJ1:50 pmCluj Napoca
Dec 28
CLJ2:35 pmCluj Napoca
31h 35m
1 stop
ORD2:10 pmChicago O'Hare Intl
$797

Air Canada flights from Chicago O'Hare Intl Airport to Cluj Napoca

Our best Air Canada deals on Chicago O'Hare Intl Airport to Cluj Napoca flight tickets
Air Canada
Dec 22
ORD8:50 pmChicago O'Hare Intl
33h 00m
2 stops
CLJ1:50 pmCluj Napoca
Dec 30
CLJ2:35 pmCluj Napoca
37h 23m
2 stops
ORD7:58 pmChicago O'Hare Intl
$805
Air Canada
Sep 5
ORD8:40 pmChicago O'Hare Intl
36h 45m
2 stops
CLJ5:25 pmCluj Napoca
Sep 22
CLJ6:00 amCluj Napoca
35h 00m
2 stops
ORD9:00 amChicago O'Hare Intl
$852
Air Canada
Sep 20
ORD8:45 amChicago O'Hare Intl
24h 40m
2 stops
CLJ5:25 pmCluj Napoca
Oct 6
CLJ1:50 pmCluj Napoca
38h 22m
2 stops
ORD8:12 pmChicago O'Hare Intl
$861

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 August 6, 2026.
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

Cheapest round-trip

ChicagoCluj Napoca

ORD Chicago O'Hare Intl - CLJ Cluj Napoca

ORDCLJ

Chicago O'Hare Intl

Wed 12/23

12:50 pm-1:50 pm

2 stops17h 00m

Cluj Napoca

Tue 12/29

2:35 pm-11:22 pm

2 stops16h 47m

$796

ChicagoCluj Napoca

ORD Chicago O'Hare Intl - CLJ Cluj Napoca

ORDCLJ

Chicago O'Hare Intl

Wed 12/23

12:50 pm-1:50 pm

2 stops17h 00m

Cluj Napoca

Mon 12/28

2:35 pm-2:10 pm

1 stop31h 35m

$797

ChicagoCluj Napoca

ORD Chicago O'Hare Intl - CLJ Cluj Napoca

ORDCLJ

Chicago O'Hare Intl

Sun 9/6

3:35 pm-5:25 pm

1 stop17h 50m

Cluj Napoca

Sun 9/20

6:00 am-12:35 pm

1 stop14h 35m

$798

ChicagoCluj Napoca

ORD Chicago O'Hare Intl - CLJ Cluj Napoca

ORDCLJ

Chicago O'Hare Intl

Sat 9/19

11:25 am-9:05 am

1 stop13h 40m

Cluj Napoca

Wed 10/7

9:55 am-9:40 am

1 stop31h 45m

$798

ChicagoCluj Napoca

ORD Chicago O'Hare Intl - CLJ Cluj Napoca

ORDCLJ

Chicago O'Hare Intl

Sat 9/19

11:25 am-9:05 am

1 stop13h 40m

Cluj Napoca

Thu 10/1

9:55 am-9:40 am

1 stop31h 45m

$798

ChicagoCluj Napoca

ORD Chicago O'Hare Intl - CLJ Cluj Napoca

ORDCLJ

Chicago O'Hare Intl

Tue 9/1

5:10 pm-1:20 pm

2 stops36h 10m

Cluj Napoca

Tue 9/8

2:00 pm-7:50 pm

1 stop13h 50m

$803

ChicagoCluj Napoca

ORD Chicago O'Hare Intl - CLJ Cluj Napoca

ORDCLJ

Chicago O'Hare Intl

Sun 9/13

5:10 pm-1:20 pm

2 stops36h 10m

Cluj Napoca

Wed 9/23

2:00 pm-7:50 pm

1 stop13h 50m

$803

ChicagoCluj Napoca

ORD Chicago O'Hare Intl - CLJ Cluj Napoca

ORDCLJ

Chicago O'Hare Intl

Tue 12/22

8:50 pm-1:50 pm

2 stops33h 00m

Cluj Napoca

Wed 12/30

2:35 pm-7:58 pm

2 stops37h 23m

$805
Quickest round-trip

ChicagoCluj Napoca

ORD Chicago O'Hare Intl - CLJ Cluj Napoca

ORDCLJ

Chicago O'Hare Intl

Sun 9/6

1:55 pm-1:10 pm

2 stops15h 15m

Cluj Napoca

Sun 9/20

6:00 am-12:35 pm

1 stop14h 35m

$806

ChicagoCluj Napoca

ORD Chicago O'Hare Intl - CLJ Cluj Napoca

ORDCLJ

Chicago O'Hare Intl

Wed 9/16

8:10 pm-11:10 pm

2 stops19h 00m

Cluj Napoca

Wed 9/23

8:45 am-9:40 am

2 stops32h 55m

$811

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 typical price of a round-trip flight between Chicago O'Hare Intl Airport and Cluj Napoca?

Prices are currently typical for flights on this route.

Typical prices usually range from $779 to $939.
The lowest price recently found on this route was $798.

What is the cheapest month to fly to Cluj Napoca?

The month of January is, on average, the cheapest month to fly to Cluj Napoca from Chicago O'Hare Intl Airport, with most prices found around $547. If you don’t want to visit Cluj Napoca in January, then you should wait until October to fly from Chicago O'Hare Intl Airport, when ticket prices are also cheap, with an average price of $549.

How far in advance should I book a flight from Chicago O'Hare Intl Airport 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 $843 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 $683 on momondo.

Can stopping save me money on Chicago O'Hare Intl Airport to Cluj Napoca flights?

You could potentially save up to 30% on your flight if you consider stops on a Chicago O'Hare Intl Airport to Cluj Napoca flight.

How have Chicago O'Hare Intl Airport to Cluj Napoca flight prices changed over time?

As of August 2026, prices for Chicago O'Hare Intl Airport to Cluj Napoca flights are approximately 16% cheaper when compared to flights at the same time last year.

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

Fastest flight time

12h 20m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Cluj Napoca takes 12h 20m
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.
Search flight deals

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Cluj Napoca

  • 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 12h 20m, 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 $515Free CancellationRating
7.4
4,468 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $549Free CancellationRating
6.8
8,176 reviews
Search Lufthansa flights
LOTPriceFrom $568Free CancellationRating
7.6
1,212 reviews
Search LOT flights
United AirlinesPriceFrom $588Free CancellationRating
7.4
10,072 reviews
Search United Airlines flights
SWISSPriceFrom $609Free CancellationRating
7.5
2,026 reviews
Search SWISS flights
HiSkyPriceFrom $733Free CancellationRating
0.0
Search HiSky flights

Traveling to a place near Cluj Napoca?

Book flights to Cluj Napoca if you plan to visit one of these locations
Turda

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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