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

Air Serbia, Lufthansa, and Delta are the most popular carriers operating from Illinois to Romania

What airlines fly to Romania?

Lufthansa, Turkish Airlines and LOT are the top three most popular airlines that fly to Romania from Illinois according to our data. Lufthansa is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Romania. Keep in mind that there are 13 different airlines that fly to Romania on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Illinois to Romania are updated daily.

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

As of August 2026, there are 13 operators available to choose from for flights from Illinois to Romania.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Romania.

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

The travel and health documents required for your trip to Romania 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 Romania. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$311 Cheap Flights from Illinois to Romania in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to Romania

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:10 pm - 9:25 amORD Chicago O'Hare Intl-TSR Timisoara

29h 15m1 stop Istanbul

9:55 pm - 9:40 amTSR Timisoara-ORD Chicago O'Hare Intl

19h 45m1 stop Istanbul

$691Turkish Airlines

Sun, Sep 13 - Wed, Oct 7

8:10 pm - 9:25 amORD Chicago O'Hare Intl-TSR Timisoara

29h 15m1 stop Istanbul

2:25 pm - 9:40 amTSR Timisoara-ORD Chicago O'Hare Intl

27h 15m2 stops Bucharest Otopeni Intl Istanbul

$738Turkish Airlines

Sun, Sep 13 - Wed, Oct 7

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

12h 40m1 stop Munich Franz Josef Strauss

4:40 pm - 4:15 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

31h 35m1 stop Zurich

$758Multiple Airlines

Sun, Jan 10 - Sun, Jan 17

9:50 pm - 1:00 amORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

19h 10m1 stop Munich Franz Josef Strauss

6:00 am - 2:52 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

16h 52m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl

$759Multiple Airlines

Fri, Feb 12 - Fri, Feb 26

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

11h 55m1 stop Warsaw Frederic Chopin

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

13h 20m1 stop Warsaw Frederic Chopin

$760LOT

Tue, Nov 3 - Sun, Nov 15

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

17h 35m1 stop Warsaw Frederic Chopin

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

13h 20m1 stop Warsaw Frederic Chopin

$760LOT

Wed, Nov 4 - Sun, Nov 15

7:04 pm - 1:05 amSTL Lambert-St Louis-CLJ Cluj Napoca

22h 01m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:10 am - 9:13 pmCLJ Cluj Napoca-STL Lambert-St Louis

23h 03m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl

$762Lufthansa

Sun, Jan 10 - Thu, Jan 14

11:15 am - 12:30 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

17h 15m2 stops Washington, D.C. Dulles Intl Vienna Intl

7:10 pm - 2:00 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

26h 50m1 stop Vienna Intl

$769United Airlines

Wed, Dec 2 - Tue, Dec 8

6:00 am - 1:50 pmSTL Lambert-St Louis-CLJ Cluj Napoca

23h 50m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:10 am - 3:26 pmCLJ Cluj Napoca-STL Lambert-St Louis

41h 16m2 stops Munich Franz Josef Strauss Toronto Pearson Intl

$778United Airlines

Sun, Jan 10 - Tue, Jan 12

1:08 pm - 1:05 amSTL Lambert-St Louis-CLJ Cluj Napoca

27h 57m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

6:10 am - 9:13 pmCLJ Cluj Napoca-STL Lambert-St Louis

23h 03m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl

$785Lufthansa

Sun, Jan 10 - Wed, Jan 13

Cheap last minute flights

Enter your travel dates to find the best prices.

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

20h 00m1 stop Warsaw Frederic Chopin

6:30 pm - 7:55 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

33h 25m1 stop Warsaw Frederic Chopin

$872LOT

Sun, Aug 23 - Tue, Feb 23

9:40 pm - 6:40 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

13h 00m1 stop Munich Franz Josef Strauss

6:30 am - 7:52 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

21h 22m2 stops Zurich Montreal Pierre Elliott Trudeau Intl

$910Multiple Airlines

Sun, Aug 23 - Tue, Feb 23

1:55 pm - 1:10 pmORD Chicago O'Hare Intl-CLJ Cluj Napoca

15h 15m2 stops Charlotte Douglas Munich Franz Josef Strauss

1:50 pm - 12:35 pmCLJ Cluj Napoca-ORD Chicago O'Hare Intl

30h 45m1 stop Munich Franz Josef Strauss

$921Lufthansa

Fri, Aug 21 - Wed, Sep 9

8:10 pm - 5:30 pmORD Chicago O'Hare Intl-CLJ Cluj Napoca

13h 20m1 stop Warsaw Frederic Chopin

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

29h 00m1 stop Warsaw Frederic Chopin

$922LOT

Fri, Aug 21 - Wed, Sep 9

1:55 pm - 1:10 pmORD Chicago O'Hare Intl-CLJ Cluj Napoca

15h 15m2 stops Charlotte Douglas Munich Franz Josef Strauss

1:50 pm - 12:35 pmCLJ Cluj Napoca-ORD Chicago O'Hare Intl

30h 45m1 stop Munich Franz Josef Strauss

$925Lufthansa

Fri, Aug 21 - Wed, Sep 9

7:25 pm - 3:20 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

35h 55m3 stops Reykjavik Keflavik Intl Stockholm Arlanda Belgrade Nikola Tesla

12:30 pm - 9:25 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

16h 55m2 stops Stockholm Arlanda Reykjavik Keflavik Intl

$926Multiple Airlines

Mon, Aug 24 - Mon, Aug 31

11:25 am - 3:20 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

19h 55m2 stops Istanbul Timisoara

8:35 pm - 9:40 amOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

21h 05m1 stop Istanbul

$963Turkish Airlines

Mon, Aug 24 - Tue, Sep 15

2:20 pm - 3:20 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

17h 00m1 stop Zurich

4:10 pm - 12:35 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

28h 25m1 stop Zurich

$981SWISS

Thu, Aug 20 - Mon, Aug 24

4:20 pm - 1:00 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

12h 40m1 stop Amsterdam Schiphol

2:00 pm - 2:30 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

32h 30m1 stop Amsterdam Schiphol

$993Delta

Thu, Aug 20 - Tue, Aug 25

2:40 pm - 3:20 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

16h 40m1 stop Zurich

6:20 am - 3:55 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

17h 35m1 stop Zurich

$998SWISS

Sat, Aug 22 - Wed, Sep 2

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Air Canada flights from Illinois to Romania

Our best Air Canada deals on Illinois to Romania flight tickets

Air Canada

Jan 10

ORD4:30 pmChicago O'Hare Intl

15h 20m

2 stops

OTP3:50 pmBucharest Otopeni Intl

Jan 17

OTP6:30 amBucharest Otopeni Intl

21h 22m

2 stops

ORD7:52 pmChicago O'Hare Intl

$776

Air Canada

Oct 25

ORD1:55 pmChicago O'Hare Intl

16h 55m

2 stops

CLJ1:50 pmCluj Napoca

Nov 18

CLJ6:10 amCluj Napoca

33h 50m

2 stops

ORD8:00 amChicago O'Hare Intl

$786

Air Canada

Oct 27

ORD1:57 pmChicago O'Hare Intl

16h 53m

2 stops

CLJ1:50 pmCluj Napoca

Nov 17

CLJ6:10 amCluj Napoca

45h 51m

2 stops

ORD8:01 pmChicago O'Hare Intl

$787

LOT flights from Illinois to Romania

Our best LOT deals on Illinois to Romania flight tickets

LOT

Nov 3

ORD9:50 pmChicago O'Hare Intl

11h 55m

1 stop

OTP5:45 pmBucharest Otopeni Intl

Nov 14

OTP2:35 pmBucharest Otopeni Intl

13h 20m

1 stop

ORD7:55 pmChicago O'Hare Intl

$760

LOT

Sep 14

ORD9:50 pmChicago O'Hare Intl

11h 55m

1 stop

OTP5:45 pmBucharest Otopeni Intl

Sep 28

OTP2:35 pmBucharest Otopeni Intl

32h 35m

1 stop

ORD3:10 pmChicago O'Hare Intl

$764

LOT

Oct 11

ORD5:10 pmChicago O'Hare Intl

24h 40m

2 stops

OTP1:50 amBucharest Otopeni Intl

Nov 5

OTP8:20 amBucharest Otopeni Intl

19h 35m

1 stop

ORD7:55 pmChicago O'Hare Intl

$781

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoTimisoara

ORD Chicago O'Hare Intl - TSR Timisoara

ORDTSR

Chicago O'Hare Intl

Sun 9/13

8:10 pm-9:25 am

1 stop29h 15m

Timisoara

Wed 10/7

9:55 pm-9:40 am

1 stop19h 45m

$691

ChicagoTimisoara

ORD Chicago O'Hare Intl - TSR Timisoara

ORDTSR

Chicago O'Hare Intl

Sun 9/13

8:10 pm-9:25 am

1 stop29h 15m

Timisoara

Wed 10/7

2:25 pm-9:40 am

2 stops27h 15m

$738

ChicagoBucharest

ORD Chicago O'Hare Intl - OTP Bucharest Otopeni Intl

ORDOTP

Chicago O'Hare Intl

Sun 1/10

9:50 pm-6:30 pm

1 stop12h 40m

Bucharest Otopeni Intl

Sun 1/17

4:40 pm-4:15 pm

1 stop31h 35m

$758

ChicagoBucharest

ORD Chicago O'Hare Intl - OTP Bucharest Otopeni Intl

ORDOTP

Chicago O'Hare Intl

Fri 2/12

9:50 pm-1:00 am

1 stop19h 10m

Bucharest Otopeni Intl

Fri 2/26

6:00 am-2:52 pm

2 stops16h 52m

$759

Quickest round-trip

ChicagoBucharest

ORD Chicago O'Hare Intl - OTP Bucharest Otopeni Intl

ORDOTP

Chicago O'Hare Intl

Tue 11/3

9:50 pm-5:45 pm

1 stop11h 55m

Bucharest Otopeni Intl

Sun 11/15

2:35 pm-7:55 pm

1 stop13h 20m

$760

ChicagoBucharest

ORD Chicago O'Hare Intl - OTP Bucharest Otopeni Intl

ORDOTP

Chicago O'Hare Intl

Wed 11/4

9:50 pm-11:25 pm

1 stop17h 35m

Bucharest Otopeni Intl

Sun 11/15

2:35 pm-7:55 pm

1 stop13h 20m

$760

St. LouisCluj Napoca

STL Lambert-St Louis - CLJ Cluj Napoca

STLCLJ

Lambert-St Louis

Sun 1/10

7:04 pm-1:05 am

2 stops22h 01m

Cluj Napoca

Thu 1/14

6:10 am-9:13 pm

2 stops23h 03m

$762

ChicagoBucharest

ORD Chicago O'Hare Intl - OTP Bucharest Otopeni Intl

ORDOTP

Chicago O'Hare Intl

Wed 12/2

11:15 am-12:30 pm

2 stops17h 15m

Bucharest Otopeni Intl

Tue 12/8

7:10 pm-2:00 pm

1 stop26h 50m

$769

St. LouisCluj Napoca

STL Lambert-St Louis - CLJ Cluj Napoca

STLCLJ

Lambert-St Louis

Sun 1/10

6:00 am-1:50 pm

2 stops23h 50m

Cluj Napoca

Tue 1/12

6:10 am-3:26 pm

2 stops41h 16m

$778

St. LouisCluj Napoca

STL Lambert-St Louis - CLJ Cluj Napoca

STLCLJ

Lambert-St Louis

Sun 1/10

1:08 pm-1:05 am

2 stops27h 57m

Cluj Napoca

Wed 1/13

6:10 am-9:13 pm

2 stops23h 03m

$785

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 Illinois to Romania

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

What is the cheapest month to fly to Romania?

The cheapest month to fly to Romania from Illinois is in February. Flight prices, which tend to average around $573, are often lower during this time because this is during the off-season. If you are unable to visit Romania during the month of February, then departing from Illinois during the month November is also very affordable. Most momondo users find prices during this month for around $596.

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

The cheapest day to depart on your flight to Romania is on a Tuesday when prices can be found for as low as $853. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $893. These prices are subject to change though, so be sure to set up a Price Alert for flights to Romania.

What is the cheapest Illinois to Romania flight route?

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

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

You are more likely to see cheaper flights to Romania from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Romania for around $770 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Romania from Illinois for as low as $365 on momondo.

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

There are 3 cabin classes available to choose from on Illinois to Romania 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 Illinois to Romania flights?

You could potentially save up to 23% on your flight if you consider stops on a Illinois to Romania flight.

Cheap Illinois to Romania flight deals and tips

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

Best Price Found	$311
Fastest flight time	12h 05m
Direct flights	None

The best one-way flight to Romania from Illinois in the past 72 hours is $311. The best round-trip flight deal from Illinois to Romania found on momondo in the last 72 hours is $691.

The fastest flight from Illinois to Romania takes 12h 05m

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

Search flight deals

Frequently asked questions about flying from Illinois to Romania

When did momondo last update prices for flights from Illinois to Romania?
Prices for flights from Illinois to Romania are updated daily.
How many operators does momondo search for flights from Illinois to Romania?
As of August 2026, there are 13 operators available to choose from for flights from Illinois to Romania.
How old do you have to be to fly from Illinois to Romania?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Romania.
What documentation or ID do you need to fly to Romania?
The travel and health documents required for your trip to Romania 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 Romania. 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 Illinois to Romania?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Illinois to Romania is Airbus A330-200 (68.18% of total bookings). The next most popular plane model is Airbus A330 (31.82%).

Best airlines flying from Illinois to Romania

Compare and see reviews for airlines that fly from Illinois to Romania with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $300	Free Cancellation	Rating 7.4 10,104 reviews	Search United Airlines flights
British Airways	PriceFrom $418	Free Cancellation	Rating 6.7 8,181 reviews	Search British Airways flights
Turkish Airlines	PriceFrom $504	Free Cancellation	Rating 7.4 4,477 reviews	Search Turkish Airlines flights
Air France	PriceFrom $510	Free Cancellation	Rating 7.5 1,647 reviews	Search Air France flights
KLM	PriceFrom $543	Free Cancellation	Rating 7.8 1,560 reviews	Search KLM flights
Lufthansa	PriceFrom $549	Free Cancellation	Rating 6.8 8,199 reviews	Search Lufthansa flights
Air Serbia	PriceFrom $566	Free Cancellation	Rating 6.1 237 reviews	Search Air Serbia flights
LOT	PriceFrom $568	Free Cancellation	Rating 7.5 1,211 reviews	Search LOT flights
SWISS	PriceFrom $569	Free Cancellation	Rating 7.5 2,036 reviews	Search SWISS flights
Delta	PriceFrom $575	Free Cancellation	Rating 7.8 8,499 reviews	Search Delta flights

Why use momondo?

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

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 Romania from Illinois.

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

momondo does allow users to show only those flights to Romania from Illinois which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Romania from Illinois.

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

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