What is the cheapest airline that flies from Romania to Illinois?

British Airways, American Airlines, and LOT are the most popular carriers operating from Romania to Illinois

How long is the flight from Romania to Illinois?

The flight from Romania to Illinois depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Bucharest (a popular airport in Romania) to Chicago O'Hare Intl Airport (the most popular airport in Illinois), then the flight time is 13h 40m on average. If you fly from Cluj Napoca (another popular airport in Romania) to Chicago O'Hare Intl Airport, then the average flight time is 14h 35m.

What airlines fly to Illinois?

Lufthansa, Turkish Airlines and LOT are the top three most popular airlines that fly to Illinois from Romania according to our data. Lufthansa is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 10 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Romania to Illinois?

Prices for flights from Romania to Illinois are refreshed on a daily basis.

How many operators does momondo search for flights from Romania to Illinois?

There are 10 operators available for flights from Romania to Illinois as of August 2026.

How old do you have to be to fly from Romania to Illinois?

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 Romania to Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$355 Cheap Flights from Romania to Illinois in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Romania to Illinois

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One-way

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Recent round-trip flight deals from Romania to Illinois

Enter your travel dates to find the best prices.

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

$758Multiple Airlines

Fri, Sep 4 - Sun, Sep 20

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

13h 40m1 stop Amsterdam Schiphol

7:25 pm - 3:50 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

13h 25m1 stop Paris Charles de Gaulle

$758Multiple Airlines

Thu, Oct 15 - Thu, Oct 29

6:30 pm - 3:10 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

28h 40m1 stop Warsaw Frederic Chopin

5:10 pm - 1:50 amORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

24h 40m1 stop Warsaw Frederic Chopin

$759LOT

Mon, Sep 21 - Mon, Sep 28

6:30 pm - 3:10 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

28h 40m2 stops Warsaw Frederic Chopin Krakow J. Paul II Balice

5:10 pm - 11:15 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

22h 05m2 stops Krakow J. Paul II Balice Warsaw Frederic Chopin

$763LOT

Tue, Sep 1 - Tue, Sep 15

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

15h 10m1 stop Amsterdam Schiphol

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

16h 35m1 stop Amsterdam Schiphol

$765KLM

Sun, Oct 18 - Wed, Oct 28

7:05 am - 2:30 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

15h 25m1 stop Amsterdam Schiphol

4:50 pm - 3:25 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

14h 35m1 stop Amsterdam Schiphol

$765KLM

Mon, Sep 28 - Wed, Oct 21

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

14h 35m1 stop Munich Franz Josef Strauss

3:35 pm - 1:10 pmORD Chicago O'Hare Intl-CLJ Cluj Napoca

13h 35m1 stop Munich Franz Josef Strauss

$792Lufthansa

Thu, Oct 1 - Wed, Oct 14

6:10 pm - 3:10 pmCLJ Cluj Napoca-ORD Chicago O'Hare Intl

29h 00m1 stop Munich Franz Josef Strauss

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

11h 50m1 stop Munich Franz Josef Strauss

$794Lufthansa

Sat, Oct 24 - Sat, Nov 21

4:05 pm - 2:00 pmSBZ Sibiu-ORD Chicago O'Hare Intl

29h 55m1 stop Vienna Intl

1:12 pm - 3:25 pmORD Chicago O'Hare Intl-SBZ Sibiu

18h 13m2 stops Washington, D.C. Dulles Intl Vienna Intl

$794Austrian Airlines

Fri, Nov 20 - Thu, Feb 4

4:05 pm - 6:55 pmSBZ Sibiu-ORD Chicago O'Hare Intl

34h 50m2 stops Vienna Intl Washington, D.C. Dulles Intl

1:12 pm - 3:25 pmORD Chicago O'Hare Intl-SBZ Sibiu

18h 13m2 stops Washington, D.C. Dulles Intl Vienna Intl

$799Austrian Airlines

Fri, Nov 20 - Thu, Feb 4

Recent last minute flight deals from Romania to Illinois

Enter your travel dates to find the best prices.

2:00 pm - 10:44 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

16h 44m2 stops Amsterdam Schiphol Boston Logan Intl

10:35 am - 2:10 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

19h 35m2 stops Boston Logan Intl Paris Charles de Gaulle

$856Delta

Mon, Aug 17 - Thu, Dec 10

2:00 pm - 11:57 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

17h 57m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

10:35 am - 2:10 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

19h 35m2 stops Boston Logan Intl Paris Charles de Gaulle

$857Delta

Mon, Aug 17 - Thu, Dec 10

2:00 pm - 11:57 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

17h 57m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

6:25 pm - 11:15 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

20h 50m1 stop Paris Charles de Gaulle

$860Multiple Airlines

Mon, Aug 17 - Thu, Dec 10

2:00 pm - 10:44 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

16h 44m2 stops Amsterdam Schiphol Boston Logan Intl

6:25 pm - 11:15 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

20h 50m1 stop Paris Charles de Gaulle

$860Multiple Airlines

Mon, Aug 17 - Thu, Dec 10

6:00 am - 3:10 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

17h 10m1 stop Paris Charles de Gaulle

6:25 pm - 11:15 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

20h 50m1 stop Paris Charles de Gaulle

$892Air France

Mon, Aug 17 - Thu, Dec 10

6:00 am - 3:10 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

17h 10m1 stop Paris Charles de Gaulle

6:25 pm - 11:15 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

20h 50m1 stop Paris Charles de Gaulle

$975Air France

Mon, Aug 17 - Thu, Dec 10

6:00 am - 1:20 pmSBZ Sibiu-ORD Chicago O'Hare Intl

15h 20m1 stop Vienna Intl

4:20 pm - 11:20 amORD Chicago O'Hare Intl-SBZ Sibiu

11h 00m1 stop Vienna Intl

$2,249Austrian Airlines

Sat, Aug 15 - Sat, Sep 5

6:00 am - 1:20 pmSBZ Sibiu-ORD Chicago O'Hare Intl

15h 20m1 stop Vienna Intl

4:20 pm - 11:20 amORD Chicago O'Hare Intl-SBZ Sibiu

11h 00m1 stop Vienna Intl

$2,308Austrian Airlines

Sat, Aug 15 - Sat, Sep 5

2:35 pm - 7:50 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

13h 15m1 stop Warsaw Frederic Chopin

5:10 pm - 1:50 amORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

24h 40m2 stops Krakow J. Paul II Balice Warsaw Frederic Chopin

$3,864LOT

Sun, Aug 16 - Wed, Sep 2

2:35 pm - 3:10 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

32h 35m2 stops Warsaw Frederic Chopin Krakow J. Paul II Balice

5:10 pm - 5:45 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

16h 35m2 stops Krakow J. Paul II Balice Warsaw Frederic Chopin

$4,173LOT

Sun, Aug 16 - Wed, Sep 2

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Delta flights from Romania to Illinois

Our best Delta deals on Romania to Illinois flight tickets

Delta

Sep 9

OTP7:05 amBucharest Otopeni Intl

15h 25m

1 stop

ORD2:30 pmChicago O'Hare Intl

Sep 22

ORD10:29 amChicago O'Hare Intl

18h 16m

2 stops

OTP12:45 pmBucharest Otopeni Intl

$759

Delta

Sep 3

OTP7:05 amBucharest Otopeni Intl

15h 10m

1 stop

ORD2:15 pmChicago O'Hare Intl

Sep 16

ORD10:29 amChicago O'Hare Intl

18h 16m

2 stops

OTP12:45 pmBucharest Otopeni Intl

$760

Delta

Sep 6

OTP7:05 amBucharest Otopeni Intl

16h 52m

2 stops

MDW3:57 pmChicago Midway

Nov 9

MDW1:22 pmChicago Midway

16h 48m

2 stops

OTP2:10 pmBucharest Otopeni Intl

$764

LOT flights from Romania to Illinois

Our best LOT deals on Romania to Illinois flight tickets

LOT

Sep 1

OTP6:30 pmBucharest Otopeni Intl

28h 40m

2 stops

ORD3:10 pmChicago O'Hare Intl

Sep 15

ORD5:10 pmChicago O'Hare Intl

22h 05m

2 stops

OTP11:15 pmBucharest Otopeni Intl

$763

LOT

Sep 9

OTP2:35 pmBucharest Otopeni Intl

32h 30m

2 stops

ORD3:05 pmChicago O'Hare Intl

Sep 23

ORD5:10 pmChicago O'Hare Intl

12h 50m

1 stop

OTP2:00 pmBucharest Otopeni Intl

$769

LOT

Oct 2

OTP8:20 amBucharest Otopeni Intl

19h 30m

1 stop

ORD7:50 pmChicago O'Hare Intl

Oct 17

ORD9:50 pmChicago O'Hare Intl

11h 55m

1 stop

OTP5:45 pmBucharest Otopeni Intl

$774

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BucharestChicago

OTP Bucharest Otopeni Intl - ORD Chicago O'Hare Intl

OTPORD

Bucharest Otopeni Intl

Fri 9/4

7:05 am-2:15 pm

1 stop15h 10m

Chicago O'Hare Intl

Sun 9/20

5:10 pm-3:50 pm

1 stop14h 40m

$758

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

7:25 pm-3:50 pm

1 stop13h 25m

$758

BucharestChicago

OTP Bucharest Otopeni Intl - ORD Chicago O'Hare Intl

OTPORD

Bucharest Otopeni Intl

Mon 9/21

6:30 pm-3:10 pm

1 stop28h 40m

Chicago O'Hare Intl

Mon 9/28

5:10 pm-1:50 am

1 stop24h 40m

$759

BucharestChicago

OTP Bucharest Otopeni Intl - ORD Chicago O'Hare Intl

OTPORD

Bucharest Otopeni Intl

Tue 9/1

6:30 pm-3:10 pm

2 stops28h 40m

Chicago O'Hare Intl

Tue 9/15

5:10 pm-11:15 pm

2 stops22h 05m

$763

BucharestChicago

OTP Bucharest Otopeni Intl - ORD Chicago O'Hare Intl

OTPORD

Bucharest Otopeni Intl

Sun 10/18

7:05 am-2:15 pm

1 stop15h 10m

Chicago O'Hare Intl

Wed 10/28

5:25 pm-5:00 pm

1 stop16h 35m

$765

BucharestChicago

OTP Bucharest Otopeni Intl - ORD Chicago O'Hare Intl

OTPORD

Bucharest Otopeni Intl

Mon 9/28

7:05 am-2:30 pm

1 stop15h 25m

Chicago O'Hare Intl

Wed 10/21

4:50 pm-3:25 pm

1 stop14h 35m

$765

Cluj NapocaChicago

CLJ Cluj Napoca - ORD Chicago O'Hare Intl

CLJORD

Cluj Napoca

Thu 10/1

6:00 am-12:35 pm

1 stop14h 35m

Chicago O'Hare Intl

Wed 10/14

3:35 pm-1:10 pm

1 stop13h 35m

$792

Cluj NapocaChicago

CLJ Cluj Napoca - ORD Chicago O'Hare Intl

CLJORD

Cluj Napoca

Sat 10/24

6:10 pm-3:10 pm

1 stop29h 00m

Chicago O'Hare Intl

Sat 11/21

6:00 pm-1:50 pm

1 stop11h 50m

$794

SibiuChicago

SBZ Sibiu - ORD Chicago O'Hare Intl

SBZORD

Sibiu

Fri 11/20

4:05 pm-2:00 pm

1 stop29h 55m

Chicago O'Hare Intl

Thu 2/4

1:12 pm-3:25 pm

2 stops18h 13m

$794

SibiuChicago

SBZ Sibiu - ORD Chicago O'Hare Intl

SBZORD

Sibiu

Fri 11/20

4:05 pm-6:55 pm

2 stops34h 50m

Chicago O'Hare Intl

Thu 2/4

1:12 pm-3:25 pm

2 stops18h 13m

$799

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 Illinois

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 Illinois?

The cheapest month to fly to Illinois from Romania is in February. Flight prices, which tend to average around $687, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $707.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Romania to Illinois is on a Saturday when prices can be found for as low as $469. Flights from Romania to Illinois on a Thursday will generally be more expensive and average around $770. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest Romania to Illinois flight route?

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

How far in advance should I book a flight from Romania to Illinois?

You are more likely to see cheaper flights to Illinois from Romania when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $842 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Romania for as low as $589 on momondo.

What cabin class options are available on Romania to Illinois flights?

There is only 1 cabin class available to choose from on Romania to Illinois 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 Illinois flights?

No. A direct flight is the cheapest option for a flight between Romania to Illinois.

Cheap Romania to Illinois flight deals and tips

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

Best Price Found	$868
Fastest flight time	13h 40m
Direct flights	None

The best flight deal from Romania to Illinois found on momondo in the last 72 hours is $868

The fastest flight from Romania to Illinois takes 13h 40m

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

Search flight deals

Frequently asked questions about flying from Romania to Illinois

When did momondo last update prices for flights from Romania to Illinois?
Prices for flights from Romania to Illinois are refreshed on a daily basis.
How many operators does momondo search for flights from Romania to Illinois?
There are 10 operators available for flights from Romania to Illinois as of August 2026.
How old do you have to be to fly from Romania to Illinois?
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 Romania to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Romania to Illinois?
momondo data reveals that the most frequently booked plane model on the route from Romania to Illinois is Airbus A330-200, representing 56.25% of all bookings. The subsequent popular model is Airbus A330 at 43.75%.

Best airlines flying from Romania to Illinois

Compare and see reviews for airlines that fly from Romania to Illinois 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 2,035 reviews	Search SWISS flights
Lufthansa	PriceFrom $603	Free Cancellation	Rating 6.8 8,182 reviews	Search Lufthansa flights
LOT	PriceFrom $606	Free Cancellation	Rating 7.5 1,214 reviews	Search LOT flights
Turkish Airlines	PriceFrom $608	Free Cancellation	Rating 7.4 4,481 reviews	Search Turkish Airlines flights
United Airlines	PriceFrom $609	Free Cancellation	Rating 7.4 10,115 reviews	Search United Airlines flights
Air France	PriceFrom $654	Free Cancellation	Rating 7.5 1,641 reviews	Search Air France flights
KLM	PriceFrom $657	Free Cancellation	Rating 7.8 1,557 reviews	Search KLM flights
British Airways	PriceFrom $660	Free Cancellation	Rating 6.7 8,160 reviews	Search British Airways flights
Austrian Airlines	PriceFrom $696	Free Cancellation	Rating 7.6 948 reviews	Search Austrian Airlines flights

Why use momondo?

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

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 Illinois from Romania.

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

All flight searches from Romania to Illinois on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for Romania to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

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