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Cheap flights from Chicago O'Hare Intl Airport to Cluj Napoca from $423

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 8/7. 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
12:55 pm - 5:25 pm
ORD
-
CLJ
20h 30m
2 stops
United Airlines Logo
6:00 am - 10:29 pm
CLJ
-
ORD
24h 29m
2 stops
$850United Airlines
Sun, Sep 6 - Fri, Sep 25
United Airlines Logo
2:30 pm - 5:25 pm
ORD
-
CLJ
18h 55m
2 stops
United Airlines Logo
1:50 pm - 10:28 pm
CLJ
-
ORD
16h 38m
2 stops
$851United Airlines
Fri, Sep 4 - Tue, Sep 29
United Airlines Logo
9:52 pm - 5:25 pm
ORD
-
CLJ
35h 33m
2 stops
United Airlines Logo
6:00 am - 2:05 pm
CLJ
-
ORD
16h 05m
1 stop
$852United Airlines
Tue, Oct 6 - Wed, Oct 14
Turkish Airlines Logo
11:25 am - 9:05 am
ORD
-
CLJ
13h 40m
1 stop
Turkish Airlines Logo
9:55 am - 6:15 pm
CLJ
-
ORD
16h 20m
1 stop
$853Turkish Airlines
Sat, Oct 3 - Wed, Oct 14
Lufthansa Logo
10:30 pm - 12:30 am
ORD
-
CLJ
18h 00m
2 stops
Lufthansa Logo
6:00 am - 1:10 pm
CLJ
-
ORD
15h 10m
2 stops
$861Lufthansa
Thu, Oct 22 - Sun, Nov 22
Lufthansa Logo
4:05 pm - 2:50 pm
ORD
-
CLJ
14h 45m
2 stops
Lufthansa Logo
6:00 am - 12:55 pm
CLJ
-
ORD
14h 55m
2 stops
$864Lufthansa
Sun, Sep 6 - Sun, Sep 27
Lufthansa Logo
9:40 pm - 12:30 am
ORD
-
CLJ
18h 50m
1 stop
Lufthansa Logo
6:00 am - 12:35 pm
CLJ
-
ORD
14h 35m
1 stop
$865Lufthansa
Thu, Jul 30 - Thu, Aug 13
Lufthansa Logo
4:05 pm - 2:50 pm
ORD
-
CLJ
14h 45m
2 stops
Lufthansa Logo
6:00 am - 6:15 pm
CLJ
-
ORD
20h 15m
1 stop
$869Lufthansa
Sun, Sep 6 - Sun, Sep 20
Turkish Airlines Logo
11:25 am - 9:05 am
ORD
-
CLJ
13h 40m
1 stop
Turkish Airlines Logo
9:55 am - 6:15 pm
CLJ
-
ORD
16h 20m
1 stop
$873Turkish Airlines
Wed, Oct 7 - Sun, Oct 11
Lufthansa Logo
9:40 pm - 12:30 am
ORD
-
CLJ
18h 50m
1 stop
Lufthansa Logo
6:00 am - 12:35 pm
CLJ
-
ORD
14h 35m
1 stop
$875Lufthansa
Wed, Jul 22 - Thu, Aug 13

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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
Nov 3
ORD12:00 pmChicago O'Hare Intl
17h 40m
3 stops
CLJ1:40 pmCluj Napoca
Nov 24
CLJ6:00 amCluj Napoca
19h 28m
3 stops
ORD5:28 pmChicago O'Hare Intl
$853
Air Canada
Oct 4
ORD2:01 pmChicago O'Hare Intl
19h 24m
2 stops
CLJ5:25 pmCluj Napoca
Oct 13
CLJ1:50 pmCluj Napoca
38h 16m
2 stops
ORD8:06 pmChicago O'Hare Intl
$895
Air Canada
Oct 7
ORD2:01 pmChicago O'Hare Intl
19h 24m
2 stops
CLJ5:25 pmCluj Napoca
Oct 11
CLJ6:00 amCluj Napoca
42h 45m
2 stops
ORD4:45 pmChicago O'Hare Intl
$899

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
Sep 6
ORD12:55 pmChicago O'Hare Intl
20h 30m
2 stops
CLJ5:25 pmCluj Napoca
Sep 25
CLJ6:00 amCluj Napoca
24h 29m
2 stops
ORD10:29 pmChicago O'Hare Intl
$850
United Airlines
Sep 4
ORD2:30 pmChicago O'Hare Intl
18h 55m
2 stops
CLJ5:25 pmCluj Napoca
Sep 29
CLJ1:50 pmCluj Napoca
16h 38m
2 stops
ORD10:28 pmChicago O'Hare Intl
$851
United Airlines
Oct 6
ORD9:52 pmChicago O'Hare Intl
35h 33m
2 stops
CLJ5:25 pmCluj Napoca
Oct 14
CLJ6:00 amCluj Napoca
16h 05m
1 stop
ORD2:05 pmChicago O'Hare Intl
$852

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 June 18, 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 - CLJ

ORDCLJ

Chicago O'Hare Intl

Sun 9/6

12:55 pm-5:25 pm

2 stops20h 30m

Cluj Napoca

Fri 9/25

6:00 am-10:29 pm

2 stops24h 29m

$850

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Fri 9/4

2:30 pm-5:25 pm

2 stops18h 55m

Cluj Napoca

Tue 9/29

1:50 pm-10:28 pm

2 stops16h 38m

$851

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Tue 10/6

9:52 pm-5:25 pm

2 stops35h 33m

Cluj Napoca

Wed 10/14

6:00 am-2:05 pm

1 stop16h 05m

$852

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Sat 10/3

11:25 am-9:05 am

1 stop13h 40m

Cluj Napoca

Wed 10/14

9:55 am-6:15 pm

1 stop16h 20m

$853

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Thu 10/22

10:30 pm-12:30 am

2 stops18h 00m

Cluj Napoca

Sun 11/22

6:00 am-1:10 pm

2 stops15h 10m

$861
Quickest round-trip

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Sun 9/6

4:05 pm-2:50 pm

2 stops14h 45m

Cluj Napoca

Sun 9/27

6:00 am-12:55 pm

2 stops14h 55m

$864

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Thu 7/30

9:40 pm-12:30 am

1 stop18h 50m

Cluj Napoca

Thu 8/13

6:00 am-12:35 pm

1 stop14h 35m

$865

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Sun 9/6

4:05 pm-2:50 pm

2 stops14h 45m

Cluj Napoca

Sun 9/20

6:00 am-6:15 pm

1 stop20h 15m

$869

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Wed 10/7

11:25 am-9:05 am

1 stop13h 40m

Cluj Napoca

Sun 10/11

9:55 am-6:15 pm

1 stop16h 20m

$873

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Wed 7/22

9:40 pm-12:30 am

1 stop18h 50m

Cluj Napoca

Thu 8/13

6:00 am-12:35 pm

1 stop14h 35m

$875

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?

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 $558.

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 $827 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 19% 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 June 2026, prices for Chicago O'Hare Intl Airport to Cluj Napoca flights are approximately 62% 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

11h 40m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Cluj Napoca takes 11h 40m
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 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
British AirwaysPriceFrom $501Free CancellationRating
6.7
8,055 reviews
Search British Airways flights
Turkish AirlinesPriceFrom $519Free CancellationRating
7.4
4,409 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $549Free CancellationRating
6.8
8,073 reviews
Search Lufthansa flights
LOTPriceFrom $568Free CancellationRating
7.5
1,201 reviews
Search LOT flights
United AirlinesPriceFrom $588Free CancellationRating
7.4
9,860 reviews
Search United Airlines flights
SWISSPriceFrom $609Free CancellationRating
7.5
1,971 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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