What airlines fly to Illinois?

Lufthansa, LOT and Turkish Airlines 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 36% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 11 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

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 35m 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 55m.

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 11 operators available for flights from Romania to Illinois as of September 2025.

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.

$343 Cheap Flights from Romania to Illinois in 2025/26

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Find the cheapest flights from Romania to Illinois

Round-trip

One-way

Last minute

Recent round-trip flight deals from Romania to Illinois

2:25 pm - 2:20 pmCLJ-ORD

55h 55m2 stops

10:00 am - 1:40 pmORD-CLJ

19h 40m2 stops

$484United Airlines

Find Deal

Fri, Feb 13 - Mon, Feb 16

6:00 pm - 8:00 pmCLJ-ORD

34h 00m1 stop

9:55 pm - 1:15 pmORD-CLJ

31h 20m1 stop

$545LOT

Find Deal

Fri, Feb 13 - Mon, Feb 16

9:50 am - 10:05 amCLJ-ORD

32h 15m1 stop

11:45 pm - 9:05 amORD-CLJ

25h 20m1 stop

$617Turkish Airlines

Find Deal

Wed, Nov 12 - Wed, Apr 29

9:50 am - 6:25 pmCLJ-ORD

16h 35m1 stop

9:20 pm - 8:25 pmORD-CLJ

16h 05m1 stop

$620Turkish Airlines

Find Deal

Wed, Nov 12 - Wed, Mar 11

8:05 am - 6:45 pmOTP-ORD

18h 40m1 stop

11:40 am - 3:05 pmORD-OTP

19h 25m2 stops

$639British Airways

Find Deal

Sat, Jan 10 - Sat, Feb 7

4:10 pm - 1:50 pmOTP-ORD

29h 40m1 stop

9:45 pm - 3:30 pmORD-OTP

33h 45m1 stop

$640British Airways

Find Deal

Sun, Nov 30 - Sun, Dec 14

6:00 am - 6:25 pmCLJ-ORD

20h 25m1 stop

9:40 pm - 5:20 pmORD-CLJ

11h 40m1 stop

$680Lufthansa

Find Deal

Tue, Nov 11 - Tue, Apr 14

6:00 am - 7:25 pmCLJ-ORD

20h 25m1 stop

6:00 pm - 1:40 pmORD-CLJ

11h 40m1 stop

$684Lufthansa

Find Deal

Thu, Oct 30 - Thu, Dec 11

9:25 am - 2:20 pmIAS-ORD

36h 55m2 stops

4:25 pm - 9:00 amORD-IAS

32h 35m2 stops

$1,124KLM

Find Deal

Thu, Feb 12 - Mon, Feb 16

5:25 am - 2:20 pmIAS-ORD

40h 55m2 stops

4:25 pm - 9:00 amORD-IAS

32h 35m2 stops

$1,126KLM

Find Deal

Thu, Feb 12 - Mon, Feb 16

KLM flights from Romania to Illinois

Our best KLM deals on Romania to Illinois flight tickets

KLM

Sep 24

OTP6:05 pmBucharest Otopeni Intl

28h 05m

1 stop

ORD2:10 pmChicago O'Hare Intl

Nov 26

ORD4:25 pmChicago O'Hare Intl

24h 05m

1 stop

OTP12:30 amBucharest Otopeni Intl

$655

Find similar

KLM

Sep 24

OTP6:05 pmBucharest Otopeni Intl

28h 05m

1 stop

ORD2:10 pmChicago O'Hare Intl

Nov 27

ORD2:30 pmChicago O'Hare Intl

16h 55m

2 stops

OTP3:25 pmBucharest Otopeni Intl

$659

Find similar

KLM

Sep 25

OTP7:00 amBucharest Otopeni Intl

15h 10m

1 stop

ORD2:10 pmChicago O'Hare Intl

Nov 26

ORD4:25 pmChicago O'Hare Intl

15h 00m

1 stop

OTP3:25 pmBucharest Otopeni Intl

$663

Find similar

Delta flights from Romania to Illinois

Our best Delta deals on Romania to Illinois flight tickets

Delta

Nov 1

OTP6:00 amBucharest Otopeni Intl

16h 20m

1 stop

ORD3:20 pmChicago O'Hare Intl

Nov 17

ORD9:46 amChicago O'Hare Intl

18h 19m

2 stops

OTP12:05 pmBucharest Otopeni Intl

$650

Find similar

Delta

Sep 26

OTP7:00 amBucharest Otopeni Intl

22h 15m

2 stops

ORD9:15 pmChicago O'Hare Intl

Nov 28

ORD1:25 pmChicago O'Hare Intl

16h 25m

2 stops

OTP1:50 pmBucharest Otopeni Intl

$656

Find similar

Delta

Sep 24

OTP6:30 amBucharest Otopeni Intl

16h 30m

1 stop

ORD3:00 pmChicago O'Hare Intl

Nov 26

ORD9:46 amChicago O'Hare Intl

18h 19m

2 stops

OTP12:05 pmBucharest Otopeni Intl

$657

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Cluj NapocaChicago

CLJ - ORD

CLJORD

Cluj Napoca

Fri 2/13

2:25 pm-2:20 pm

2 stops55h 55m

Chicago O'Hare Intl

Mon 2/16

10:00 am-1:40 pm

2 stops19h 40m

$484

Cluj NapocaChicago

CLJ - ORD

CLJORD

Cluj Napoca

Fri 2/13

6:00 pm-8:00 pm

1 stop34h 00m

Chicago O'Hare Intl

Mon 2/16

9:55 pm-1:15 pm

1 stop31h 20m

$545

Cluj NapocaChicago

CLJ - ORD

CLJORD

Cluj Napoca

Wed 11/12

9:50 am-10:05 am

1 stop32h 15m

Chicago O'Hare Intl

Wed 4/29

11:45 pm-9:05 am

1 stop25h 20m

$617

Cluj NapocaChicago

CLJ - ORD

CLJORD

Cluj Napoca

Wed 11/12

9:50 am-6:25 pm

1 stop16h 35m

Chicago O'Hare Intl

Wed 3/11

9:20 pm-8:25 pm

1 stop16h 05m

$620

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sat 1/10

8:05 am-6:45 pm

1 stop18h 40m

Chicago O'Hare Intl

Sat 2/7

11:40 am-3:05 pm

2 stops19h 25m

$639

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sun 11/30

4:10 pm-1:50 pm

1 stop29h 40m

Chicago O'Hare Intl

Sun 12/14

9:45 pm-3:30 pm

1 stop33h 45m

$640

Cluj NapocaChicago

CLJ - ORD

CLJORD

Cluj Napoca

Tue 11/11

6:00 am-6:25 pm

1 stop20h 25m

Chicago O'Hare Intl

Tue 4/14

9:40 pm-5:20 pm

1 stop11h 40m

$680

Cluj NapocaChicago

CLJ - ORD

CLJORD

Cluj Napoca

Thu 10/30

6:00 am-7:25 pm

1 stop20h 25m

Chicago O'Hare Intl

Thu 12/11

6:00 pm-1:40 pm

1 stop11h 40m

$684

IaşiChicago

IAS - ORD

IASORD

Iasi

Thu 2/12

9:25 am-2:20 pm

2 stops36h 55m

Chicago O'Hare Intl

Mon 2/16

4:25 pm-9:00 am

2 stops32h 35m

$1,124

IaşiChicago

IAS - ORD

IASORD

Iasi

Thu 2/12

5:25 am-2:20 pm

2 stops40h 55m

Chicago O'Hare Intl

Mon 2/16

4:25 pm-9:00 am

2 stops32h 35m

$1,126

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 $598, 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 April is also cheap. Prices for this month can be found on momondo for an average of $644.

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

The cheapest day to depart from Romania to Illinois is on a Tuesday when prices can be found for as low as $676. Flights from Romania to Illinois on a Saturday will generally be more expensive and average around $767. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our most recent data shows that the best time of day to fly to Illinois is in the afternoon. Flights from Romania to Illinois during this time can be as low as $511. Flights in the evening are often more expensive with an average ticket price of $802.

How far in advance should I book a flight 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 $681 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 $596 on momondo.

Can stopping save me money on Romania to Illinois flights?

You could potentially save up to 10% on your flight if you consider stops on a Romania to Illinois flight.

Cheap Romania to Illinois flight deals and tips

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

Direct flights	None

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

Search flight deals

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 11 operators available for flights from Romania to Illinois as of September 2025.
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.

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
Turkish Airlines	PriceFrom $336	Free Cancellation	Rating 7.3 3,968 reviews	Search Turkish Airlines flights
American Airlines	PriceFrom $548	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Lufthansa	PriceFrom $552	Free Cancellation	Rating 6.8 7,407 reviews	Search Lufthansa flights
SWISS	PriceFrom $565	Free Cancellation	Rating 7.5 1,730 reviews	Search SWISS flights
KLM	PriceFrom $570	Free Cancellation	Rating 7.8 1,385 reviews	Search KLM flights
LOT	PriceFrom $573	Free Cancellation	Rating 7.6 1,114 reviews	Search LOT flights
Air France	PriceFrom $581	Free Cancellation	Rating 7.4 1,469 reviews	Search Air France flights
United Airlines	PriceFrom $594	Free Cancellation	Rating 7.4 8,929 reviews	Search United Airlines flights
British Airways	PriceFrom $597	Free Cancellation	Rating 6.6 7,361 reviews	Search British Airways flights
Delta	PriceFrom $623	Free Cancellation	Rating 7.9 7,954 reviews	Search Delta 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.