What is the cheapest airline that flies from Romania to Chicago O'Hare Intl?

Air Serbia and LOT are the most popular carriers operating from Romania to Chicago O'Hare Intl

What airlines fly to Chicago O'Hare Intl Airport?

Lufthansa, LOT and Turkish Airlines are the top three most popular airlines that fly to Chicago O'Hare Intl Airport from Romania according to our data. Lufthansa is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Chicago O'Hare Intl Airport. Keep in mind that there are 9 different airlines that fly to Chicago O'Hare Intl Airport on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Chicago O'Hare Intl Airport?

On average, it takes 12h 25m to fly from Romania to Chicago O'Hare Intl Airport if you fly out of Cluj Napoca (the most popular airport in Romania) and into Chicago O'Hare Intl Airport (the most popular airport in Chicago O'Hare Intl Airport). If you’re flying out of Bucharest and into Chicago O'Hare Intl Airport, then the flight time is around 13h 40m.

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

Prices for flights from Romania to Chicago O'Hare Intl Airport were last updated today.

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

As of September 2026, there are 9 operators available to choose from for flights from Romania to Chicago O'Hare Intl Airport.

How old do you have to be to fly from Romania to Chicago O'Hare Intl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Romania to Chicago O'Hare Intl Airport.

What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

The necessary travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$456 Cheap Flights from Romania to Chicago O'Hare Intl Airport in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Romania to Chicago

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One-way

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Recent round-trip flight deals from Romania to Chicago

Enter your travel dates to find the best prices.

6:10 pm - 7:50 pmCLJ Cluj Napoca-ORD Chicago O'Hare Intl

33h 40m1 stop Warsaw Frederic Chopin

10:50 pm - 5:20 pmORD Chicago O'Hare Intl-CLJ Cluj Napoca

11h 30m1 stop Warsaw Frederic Chopin

$672LOT

Mon, Oct 12 - Mon, Oct 26

1:50 pm - 6:15 pmCLJ Cluj Napoca-ORD Chicago O'Hare Intl

12h 25m1 stop Munich Franz Josef Strauss

10:50 pm - 1:05 amORD Chicago O'Hare Intl-CLJ Cluj Napoca

19h 15m1 stop Munich Franz Josef Strauss

$758Lufthansa

Thu, Oct 15 - Wed, Oct 28

10:35 pm - 5:20 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

26h 45m2 stops Gdansk Rebiechowo Reykjavik Keflavik Intl

9:50 pm - 6:30 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

12h 40m1 stop Munich Franz Josef Strauss

$759Multiple Airlines

Fri, Dec 11 - Wed, Dec 23

7:05 am - 2:15 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

15h 10m1 stop Amsterdam Schiphol

11:19 am - 2:10 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

19h 51m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

$760Delta

Tue, Oct 13 - Tue, Oct 27

1:50 pm - 6:15 pmCLJ Cluj Napoca-ORD Chicago O'Hare Intl

12h 25m1 stop Munich Franz Josef Strauss

10:50 pm - 1:05 amORD Chicago O'Hare Intl-CLJ Cluj Napoca

19h 15m1 stop Munich Franz Josef Strauss

$760Lufthansa

Thu, Oct 15 - Wed, Oct 28

2:35 pm - 7:55 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

37h 20m2 stops Warsaw Frederic Chopin Krakow J. Paul II Balice

9:50 pm - 5:45 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

11h 55m1 stop Warsaw Frederic Chopin

$762LOT

Sun, Dec 13 - Thu, Dec 24

8:35 am - 2:15 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

13h 40m1 stop Amsterdam Schiphol

5:25 pm - 1:00 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

12h 35m1 stop Amsterdam Schiphol

$765KLM

Thu, Oct 15 - Thu, Oct 29

8:35 am - 2:15 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

13h 40m1 stop Amsterdam Schiphol

5:25 pm - 5:00 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

16h 35m1 stop Amsterdam Schiphol

$765KLM

Tue, Sep 29 - Wed, Oct 28

6:10 am - 6:25 pmCLJ Cluj Napoca-ORD Chicago O'Hare Intl

20h 15m1 stop Munich Franz Josef Strauss

9:00 am - 1:50 pmORD Chicago O'Hare Intl-CLJ Cluj Napoca

20h 50m3 stops Newark Miami Munich Franz Josef Strauss

$779United Airlines

Thu, Nov 5 - Tue, Dec 15

6:10 am - 7:25 pmCLJ Cluj Napoca-ORD Chicago O'Hare Intl

20h 15m1 stop Munich Franz Josef Strauss

7:00 am - 1:50 pmORD Chicago O'Hare Intl-CLJ Cluj Napoca

22h 50m2 stops Miami Munich Franz Josef Strauss

$779United Airlines

Sat, Oct 31 - Tue, Dec 15

Recent last minute flight deals from Romania to Chicago

Enter your travel dates to find the best prices.

8:35 am - 2:15 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

13h 40m1 stop Amsterdam Schiphol

5:10 pm - 3:50 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

14h 40m1 stop Paris Charles de Gaulle

$844Multiple Airlines

Sat, Sep 19 - Mon, Sep 21

7:05 am - 2:15 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

15h 10m1 stop Amsterdam Schiphol

5:10 pm - 3:50 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

14h 40m1 stop Paris Charles de Gaulle

$844Multiple Airlines

Sat, Sep 19 - Tue, Sep 22

8:35 am - 2:15 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

13h 40m1 stop Amsterdam Schiphol

4:50 pm - 5:20 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

16h 30m1 stop Amsterdam Schiphol

$850KLM

Sat, Sep 19 - Wed, Oct 7

7:05 am - 2:15 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

15h 10m1 stop Amsterdam Schiphol

4:15 pm - 3:25 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

15h 10m1 stop Amsterdam Schiphol

$850KLM

Fri, Sep 18 - Sat, Oct 10

1:50 pm - 11:59 amCLJ Cluj Napoca-ORD Chicago O'Hare Intl

30h 09m2 stops Munich Franz Josef Strauss Washington, D.C. Dulles Intl

6:00 pm - 1:50 pmORD Chicago O'Hare Intl-CLJ Cluj Napoca

11h 50m1 stop Munich Franz Josef Strauss

$912United Airlines

Tue, Sep 15 - Fri, Dec 25

1:50 pm - 11:59 amCLJ Cluj Napoca-ORD Chicago O'Hare Intl

30h 09m2 stops Munich Franz Josef Strauss Washington, D.C. Dulles Intl

8:17 pm - 1:50 pmORD Chicago O'Hare Intl-CLJ Cluj Napoca

33h 33m2 stops San Francisco Munich Franz Josef Strauss

$912United Airlines

Tue, Sep 15 - Sun, Dec 27

8:20 am - 3:10 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

14h 50m1 stop Warsaw Frederic Chopin

9:50 pm - 11:25 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

17h 35m1 stop Warsaw Frederic Chopin

$932LOT

Thu, Sep 17 - Mon, Dec 21

6:00 am - 12:35 pmCLJ Cluj Napoca-ORD Chicago O'Hare Intl

14h 35m1 stop Munich Franz Josef Strauss

9:40 pm - 5:25 pmORD Chicago O'Hare Intl-CLJ Cluj Napoca

11h 45m1 stop Munich Franz Josef Strauss

$933Lufthansa

Wed, Sep 16 - Sun, Sep 27

8:20 am - 7:50 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

19h 30m1 stop Warsaw Frederic Chopin

9:50 pm - 1:50 amORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

20h 00m1 stop Warsaw Frederic Chopin

$936LOT

Fri, Sep 18 - Fri, Oct 9

6:00 am - 12:55 pmCLJ Cluj Napoca-ORD Chicago O'Hare Intl

14h 55m2 stops Munich Franz Josef Strauss Frankfurt am Main

3:35 pm - 5:25 pmORD Chicago O'Hare Intl-CLJ Cluj Napoca

17h 50m1 stop Munich Franz Josef Strauss

$944Lufthansa

Wed, Sep 16 - Sun, Sep 27

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LOT flights from Romania to Chicago O'Hare Intl Airport

Our best LOT deals on Romania to Chicago O'Hare Intl Airport flight tickets

LOT

Oct 12

CLJ6:10 pmCluj Napoca

33h 40m

1 stop

ORD7:50 pmChicago O'Hare Intl

Oct 26

ORD10:50 pmChicago O'Hare Intl

11h 30m

1 stop

CLJ5:20 pmCluj Napoca

$672

LOT

Nov 17

OTP2:35 pmBucharest Otopeni Intl

13h 20m

1 stop

ORD7:55 pmChicago O'Hare Intl

Dec 1

ORD9:50 pmChicago O'Hare Intl

17h 35m

1 stop

OTP11:25 pmBucharest Otopeni Intl

$764

LOT

Dec 15

OTP6:30 pmBucharest Otopeni Intl

33h 25m

1 stop

ORD7:55 pmChicago O'Hare Intl

Dec 23

ORD9:50 pmChicago O'Hare Intl

17h 35m

1 stop

OTP11:25 pmBucharest Otopeni Intl

$783

Delta flights from Romania to Chicago O'Hare Intl Airport

Our best Delta deals on Romania to Chicago O'Hare Intl Airport flight tickets

Delta

Sep 29

OTP7:05 amBucharest Otopeni Intl

15h 10m

1 stop

ORD2:15 pmChicago O'Hare Intl

Oct 20

ORD10:30 amChicago O'Hare Intl

18h 15m

2 stops

OTP12:45 pmBucharest Otopeni Intl

$760

Delta

Nov 19

OTP6:00 amBucharest Otopeni Intl

16h 25m

1 stop

ORD2:25 pmChicago O'Hare Intl

Feb 19

ORD1:35 pmChicago O'Hare Intl

16h 35m

2 stops

OTP2:10 pmBucharest Otopeni Intl

$762

Delta

Sep 29

OTP7:05 amBucharest Otopeni Intl

15h 10m

1 stop

ORD2:15 pmChicago O'Hare Intl

Oct 28

ORD5:25 pmChicago O'Hare Intl

16h 35m

1 stop

OTP5:00 pmBucharest Otopeni Intl

$765

momondo Fare Finder

Use the filters below to find and compare flights from Romania to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Cluj NapocaChicago

CLJ Cluj Napoca - ORD Chicago O'Hare Intl

CLJORD

Cluj Napoca

Mon 10/12

6:10 pm-7:50 pm

1 stop33h 40m

Chicago O'Hare Intl

Mon 10/26

10:50 pm-5:20 pm

1 stop11h 30m

$672

Cluj NapocaChicago

CLJ Cluj Napoca - ORD Chicago O'Hare Intl

CLJORD

Cluj Napoca

Thu 10/15

1:50 pm-6:15 pm

1 stop12h 25m

Chicago O'Hare Intl

Wed 10/28

10:50 pm-1:05 am

1 stop19h 15m

$758

BucharestChicago

OTP Bucharest Otopeni Intl - ORD Chicago O'Hare Intl

OTPORD

Bucharest Otopeni Intl

Fri 12/11

10:35 pm-5:20 pm

2 stops26h 45m

Chicago O'Hare Intl

Wed 12/23

9:50 pm-6:30 pm

1 stop12h 40m

$759

BucharestChicago

OTP Bucharest Otopeni Intl - ORD Chicago O'Hare Intl

OTPORD

Bucharest Otopeni Intl

Tue 10/13

7:05 am-2:15 pm

1 stop15h 10m

Chicago O'Hare Intl

Tue 10/27

11:19 am-2:10 pm

2 stops19h 51m

$760

Cluj NapocaChicago

CLJ Cluj Napoca - ORD Chicago O'Hare Intl

CLJORD

Cluj Napoca

Thu 10/15

1:50 pm-6:15 pm

1 stop12h 25m

Chicago O'Hare Intl

Wed 10/28

10:50 pm-1:05 am

1 stop19h 15m

$760

BucharestChicago

OTP Bucharest Otopeni Intl - ORD Chicago O'Hare Intl

OTPORD

Bucharest Otopeni Intl

Sun 12/13

2:35 pm-7:55 pm

2 stops37h 20m

Chicago O'Hare Intl

Thu 12/24

9:50 pm-5:45 pm

1 stop11h 55m

$762

Quickest round-trip

BucharestChicago

OTP Bucharest Otopeni Intl - ORD Chicago O'Hare Intl

OTPORD

Bucharest Otopeni Intl

Thu 10/15

8:35 am-2:15 pm

1 stop13h 40m

Chicago O'Hare Intl

Thu 10/29

5:25 pm-1:00 pm

1 stop12h 35m

$765

BucharestChicago

OTP Bucharest Otopeni Intl - ORD Chicago O'Hare Intl

OTPORD

Bucharest Otopeni Intl

Tue 9/29

8:35 am-2:15 pm

1 stop13h 40m

Chicago O'Hare Intl

Wed 10/28

5:25 pm-5:00 pm

1 stop16h 35m

$765

Cluj NapocaChicago

CLJ Cluj Napoca - ORD Chicago O'Hare Intl

CLJORD

Cluj Napoca

Thu 11/5

6:10 am-6:25 pm

1 stop20h 15m

Chicago O'Hare Intl

Tue 12/15

9:00 am-1:50 pm

3 stops20h 50m

$779

Cluj NapocaChicago

CLJ Cluj Napoca - ORD Chicago O'Hare Intl

CLJORD

Cluj Napoca

Sat 10/31

6:10 am-7:25 pm

1 stop20h 15m

Chicago O'Hare Intl

Tue 12/15

7:00 am-1:50 pm

2 stops22h 50m

$779

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 Romania to Chicago O'Hare Intl Airport

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

Other information

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

The month of January is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Romania averaging around $696.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Saturday when prices can be found for as low as $469. This is often the case because there is less demand to fly during this day of the week. On the other hand, Thursday is the most expensive day to depart from Romania because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $770.

What is the cheapest Romania to Chicago O'Hare Intl flight route?

Fly from Bucharest Otopeni Intl to Chicago O'Hare Intl for the best Romania - Chicago O'Hare Intl flight prices

How far in advance should I book a flight from Romania to Chicago O'Hare Intl Airport?

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Romania when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $865 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Romania for as low as $589 on momondo.

What cabin class options are available on Romania to Chicago O'Hare Intl Airport flights?

There is only 1 cabin class available to choose from on Romania to Chicago O'Hare Intl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

No. A direct flight is the cheapest option for a flight between Romania to Chicago O'Hare Intl Airport.

Cheap Romania to Chicago O'Hare Intl Airport flight deals and tips

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

Best Price Found	$456
Fastest flight time	12h 25m
Direct flights	None

The best one-way flight to Chicago O'Hare Intl Airport from Romania in the past 72 hours is $456. The best round-trip flight deal from Romania to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $672.

The fastest flight from Romania to Chicago O'Hare Intl Airport takes 12h 25m

There are no direct flights from Romania to Chicago O'Hare Intl Airport. There are no popular flight routes from Romania to Chicago O'Hare Intl Airport.

Search flight deals

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

When did momondo last update prices for flights from Romania to Chicago O'Hare Intl Airport?
Prices for flights from Romania to Chicago O'Hare Intl Airport were last updated today.
How many operators does momondo search for flights from Romania to Chicago O'Hare Intl Airport?
As of September 2026, there are 9 operators available to choose from for flights from Romania to Chicago O'Hare Intl Airport.
How old do you have to be to fly from Romania to Chicago O'Hare Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Romania to Chicago O'Hare Intl Airport.
What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?
The necessary travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Romania to Chicago O'Hare Intl Airport?
Based on momondo bookings for flights between Romania and Chicago O'Hare Intl Airport, the leading plane model is Airbus A330, making up 85.71% of the total bookings. Other popular models include Airbus A330-200 with 14.29%.

Best airlines flying from Romania to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Romania to Chicago O'Hare Intl Airport with momondo

Airline	Rating	Free Cancellation	Price
HiSky	PriceFrom $426	Free Cancellation	Rating 0.0	Search HiSky flights
SWISS	PriceFrom $602	Free Cancellation	Rating 7.5 2,071 reviews	Search SWISS flights
Lufthansa	PriceFrom $603	Free Cancellation	Rating 6.8 8,221 reviews	Search Lufthansa flights
LOT	PriceFrom $606	Free Cancellation	Rating 7.5 1,199 reviews	Search LOT flights
Turkish Airlines	PriceFrom $608	Free Cancellation	Rating 7.4 4,472 reviews	Search Turkish Airlines flights
United Airlines	PriceFrom $609	Free Cancellation	Rating 7.4 10,213 reviews	Search United Airlines flights
KLM	PriceFrom $657	Free Cancellation	Rating 7.8 1,579 reviews	Search KLM flights
British Airways	PriceFrom $660	Free Cancellation	Rating 6.7 8,220 reviews	Search British Airways flights
Austrian Airlines	PriceFrom $702	Free Cancellation	Rating 7.6 959 reviews	Search Austrian Airlines flights

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Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Chicago from Romania.

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

Flights from Romania to Chicago with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Romania to Chicago?

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 Romania to Chicago.

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

If you are not ready to book a flight from Romania to Chicago now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Chicago and let you know when they change.

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Cheap flights from Romania to Chicago from $456

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Romania to Chicago departing on 11/1. 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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LOT flights from Romania to Chicago O'Hare Intl Airport

Our best LOT deals on Romania to Chicago O'Hare Intl Airport flight tickets

Delta flights from Romania to Chicago O'Hare Intl Airport

Our best Delta deals on Romania to Chicago O'Hare Intl Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Romania to Chicago O'Hare Intl Airport that are best for you.

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

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

What is the cheapest Romania to Chicago O'Hare Intl flight route?

How far in advance should I book a flight from Romania to Chicago O'Hare Intl Airport?

What cabin class options are available on Romania to Chicago O'Hare Intl Airport flights?

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

What is the cheapest airline that flies from Romania to Chicago O'Hare Intl?

What airlines fly to Chicago O'Hare Intl Airport?

How long does it take to fly to Chicago O'Hare Intl Airport?

Cheap Romania to Chicago O'Hare Intl Airport flight deals and tips

Best Price Found

Fastest flight time

Direct flights

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

Best airlines flying from Romania to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Romania to Chicago O'Hare Intl Airport with momondo

Traveling to a place near Chicago?

Why use momondo?

An easier way to manage your Chicago O'Hare Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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