What is the cheapest airline that flies from Bucharest Otopeni Intl to Illinois?

HiSky is the most popular carrier operating from Bucharest Otopeni Intl to Illinois

What airlines fly to Illinois?

LOT, KLM and Turkish Airlines are the top three most popular airlines that fly to Illinois from Bucharest Otopeni Intl Airport according to our data. LOT is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 6 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

How many operators does momondo search for flights from Bucharest Otopeni Intl Airport to Illinois?

There are 6 operators available for flights from Bucharest Otopeni Intl Airport to Illinois as of April 2026.

How old do you have to be to fly from Bucharest Otopeni Intl Airport to Illinois?

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 Bucharest Otopeni Intl Airport to Illinois.

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

The travel and health documents you'll need for your trip to Illinois 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 Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$402 Cheap Flights from Bucharest Otopeni Intl Airport to Illinois in 2026

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Find the cheapest flights from Bucharest Otopeni Intl Airport to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:35 pm - 11:13 pm

OTP

ORD

31h 38m

2 stops

9:40 pm - 6:35 pm

ORD

OTP

12h 55m

1 stop

$699Multiple Airlines

Wed, May 27 - Mon, Aug 10

11:35 pm - 11:13 pm

OTP

ORD

31h 38m

2 stops

7:05 pm - 1:10 am

ORD

OTP

22h 05m

1 stop

$700Multiple Airlines

Wed, May 27 - Wed, Aug 5

11:35 pm - 11:13 pm

OTP

ORD

31h 38m

2 stops

2:40 pm - 3:20 pm

ORD

OTP

16h 40m

1 stop

$701Multiple Airlines

Wed, May 27 - Tue, Aug 11

2:35 pm - 7:50 pm

OTP

ORD

13h 15m

1 stop

5:10 pm - 5:45 pm

ORD

OTP

16h 35m

1 stop

$705LOT

Thu, Jun 11 - Thu, Jul 2

2:35 pm - 3:10 pm

OTP

ORD

32h 35m

1 stop

9:50 pm - 5:45 pm

ORD

OTP

11h 55m

1 stop

$718LOT

Sat, Oct 3 - Sun, Mar 28

8:20 am - 7:50 pm

OTP

ORD

19h 30m

1 stop

9:50 pm - 1:50 am

ORD

OTP

20h 00m

1 stop

$721LOT

Wed, Sep 9 - Wed, Sep 16

5:35 am - 3:10 pm

OTP

ORD

17h 35m

1 stop

9:50 pm - 5:45 pm

ORD

OTP

35h 55m

2 stops

$739LOT

Sun, Oct 4 - Thu, Apr 1

7:05 am - 5:56 pm

OTP

MDW

18h 51m

2 stops

6:36 pm - 5:20 pm

MDW

OTP

14h 44m

2 stops

$817Delta

Fri, May 8 - Mon, May 11

7:05 am - 5:56 pm

OTP

MDW

18h 51m

2 stops

6:36 pm - 5:20 pm

MDW

OTP

14h 44m

2 stops

$822Delta

Thu, May 7 - Mon, May 11

7:05 am - 5:56 pm

OTP

MDW

18h 51m

2 stops

6:36 pm - 5:20 pm

MDW

OTP

14h 44m

2 stops

$841Delta

Fri, May 8 - Sun, May 24

LOT flights from Bucharest Otopeni Intl Airport to Illinois

Our best LOT deals on Bucharest Otopeni Intl Airport to Illinois flight tickets

LOT

Jun 11

OTP2:35 pmBucharest Otopeni Intl

13h 15m

1 stop

ORD7:50 pmChicago O'Hare Intl

Jul 2

ORD5:10 pmChicago O'Hare Intl

16h 35m

1 stop

OTP5:45 pmBucharest Otopeni Intl

$705

LOT

Oct 3

OTP2:35 pmBucharest Otopeni Intl

32h 35m

1 stop

ORD3:10 pmChicago O'Hare Intl

Mar 28

ORD9:50 pmChicago O'Hare Intl

11h 55m

1 stop

OTP5:45 pmBucharest Otopeni Intl

$718

LOT

Sep 9

OTP8:20 amBucharest Otopeni Intl

19h 30m

1 stop

ORD7:50 pmChicago O'Hare Intl

Sep 16

ORD9:50 pmChicago O'Hare Intl

20h 00m

1 stop

OTP1:50 amBucharest Otopeni Intl

$721

United Airlines flights from Bucharest Otopeni Intl Airport to Illinois

Our best United Airlines deals on Bucharest Otopeni Intl Airport to Illinois flight tickets

United Airlines

May 28

OTP1:45 pmBucharest Otopeni Intl

14h 10m

1 stop

ORD7:55 pmChicago O'Hare Intl

Aug 6

ORD9:00 amChicago O'Hare Intl

19h 00m

2 stops

OTP12:00 pmBucharest Otopeni Intl

$810

United Airlines

May 6

OTP6:05 amBucharest Otopeni Intl

22h 03m

2 stops

ORD8:08 pmChicago O'Hare Intl

Aug 3

ORD6:30 pmChicago O'Hare Intl

13h 50m

1 stop

OTP4:20 pmBucharest Otopeni Intl

$812

United Airlines

May 6

OTP6:05 amBucharest Otopeni Intl

20h 47m

2 stops

ORD6:52 pmChicago O'Hare Intl

Aug 5

ORD2:25 pmChicago O'Hare Intl

25h 25m

2 stops

OTP11:50 pmBucharest Otopeni Intl

$815

momondo Fare Finder

Use the filters below to find and compare flights from Bucharest Otopeni Intl Airport to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Wed 5/27

11:35 pm-11:13 pm

2 stops31h 38m

Chicago O'Hare Intl

Mon 8/10

9:40 pm-6:35 pm

1 stop12h 55m

$699

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Wed 5/27

11:35 pm-11:13 pm

2 stops31h 38m

Chicago O'Hare Intl

Wed 8/5

7:05 pm-1:10 am

1 stop22h 05m

$700

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Wed 5/27

11:35 pm-11:13 pm

2 stops31h 38m

Chicago O'Hare Intl

Tue 8/11

2:40 pm-3:20 pm

1 stop16h 40m

$701

Quickest round-trip

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Thu 6/11

2:35 pm-7:50 pm

1 stop13h 15m

Chicago O'Hare Intl

Thu 7/2

5:10 pm-5:45 pm

1 stop16h 35m

$705

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sat 10/3

2:35 pm-3:10 pm

1 stop32h 35m

Chicago O'Hare Intl

Sun 3/28

9:50 pm-5:45 pm

1 stop11h 55m

$718

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Wed 9/9

8:20 am-7:50 pm

1 stop19h 30m

Chicago O'Hare Intl

Wed 9/16

9:50 pm-1:50 am

1 stop20h 00m

$721

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sun 10/4

5:35 am-3:10 pm

1 stop17h 35m

Chicago O'Hare Intl

Thu 4/1

9:50 pm-5:45 pm

2 stops35h 55m

$739

BucharestChicago

OTP - MDW

OTPMDW

Bucharest Otopeni Intl

Fri 5/8

7:05 am-5:56 pm

2 stops18h 51m

Chicago Midway

Mon 5/11

6:36 pm-5:20 pm

2 stops14h 44m

$817

BucharestChicago

OTP - MDW

OTPMDW

Bucharest Otopeni Intl

Thu 5/7

7:05 am-5:56 pm

2 stops18h 51m

Chicago Midway

Mon 5/11

6:36 pm-5:20 pm

2 stops14h 44m

$822

BucharestChicago

OTP - MDW

OTPMDW

Bucharest Otopeni Intl

Fri 5/8

7:05 am-5:56 pm

2 stops18h 51m

Chicago Midway

Sun 5/24

6:36 pm-5:20 pm

2 stops14h 44m

$841

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 Bucharest Otopeni Intl Airport 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

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Bucharest Otopeni Intl Airport is in February. Flight prices, which tend to average around $643, 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 November is also cheap. Prices for this month can be found on momondo for an average of $658.

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

The cheapest day to depart from Bucharest Otopeni Intl Airport to Illinois is on a Saturday when prices can be found for as low as $469. Flights from Bucharest Otopeni Intl Airport to Illinois on a Thursday will generally be more expensive and average around $481. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest Bucharest Otopeni Intl to Illinois flight route?

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

How far in advance should I book a flight from Bucharest Otopeni Intl Airport to Illinois?

You are more likely to see cheaper flights to Illinois from Bucharest Otopeni Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $755 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Bucharest Otopeni Intl Airport for as low as $611 on momondo.

What cabin class options are available on Bucharest Otopeni Intl Airport to Illinois flights?

There are 2 cabin classes available to choose from on Bucharest Otopeni Intl Airport 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 Bucharest Otopeni Intl Airport to Illinois flights?

No. A direct flight is the cheapest option for a flight between Bucharest Otopeni Intl Airport to Illinois.

Cheap Bucharest Otopeni Intl Airport to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Bucharest Otopeni Intl Airport to Illinois

Best Price Found	$407
Fastest flight time	10h 50m
Direct flights	Mon and Fri
Airports in Illinois	98 airports

The best one-way flight to Illinois from Bucharest Otopeni Intl Airport in the past 72 hours is $407. The best round-trip flight deal from Bucharest Otopeni Intl Airport to Illinois found on momondo in the last 72 hours is $836.

The fastest flight from Bucharest Otopeni Intl Airport to Illinois takes 10h 50m

Direct flights go from Bucharest Otopeni Intl Airport to Illinois on Monday and Friday. The only airline offering direct flights is HiSky.

There are 98 airports in Illinois. From Bucharest Otopeni Intl Airport there are direct flights to Chicago O'Hare Intl (ORD).

Search flight deals

Frequently asked questions about flying from Bucharest Otopeni Intl Airport to Illinois

When did momondo last update prices for flights from Bucharest Otopeni Intl Airport to Illinois?
Prices for flights from Bucharest Otopeni Intl Airport to Illinois were last updated today.
How many operators does momondo search for flights from Bucharest Otopeni Intl Airport to Illinois?
There are 6 operators available for flights from Bucharest Otopeni Intl Airport to Illinois as of April 2026.
How old do you have to be to fly from Bucharest Otopeni Intl Airport to Illinois?
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 Bucharest Otopeni Intl Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents you'll need for your trip to Illinois 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 Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Bucharest Otopeni Intl Airport to Illinois?
momondo data reveals that the most frequently booked plane model on the route from Bucharest Otopeni Intl Airport to Illinois is Airbus A330, representing 100.00% of all bookings.

Best airlines flying from Bucharest Otopeni Intl Airport to Illinois

Compare and see reviews for airlines that fly from Bucharest Otopeni Intl Airport to Illinois with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $284	Free Cancellation	Rating 7.4 9,655 reviews	Search United Airlines flights
LOT	PriceFrom $602	Free Cancellation	Rating 7.5 1,191 reviews	Search LOT flights
Lufthansa	PriceFrom $603	Free Cancellation	Rating 6.8 7,950 reviews	Search Lufthansa flights
KLM	PriceFrom $606	Free Cancellation	Rating 7.8 1,508 reviews	Search KLM flights
Turkish Airlines	PriceFrom $608	Free Cancellation	Rating 7.4 4,330 reviews	Search Turkish Airlines flights
British Airways	PriceFrom $622	Free Cancellation	Rating 6.7 7,915 reviews	Search British Airways flights

Why use momondo?

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

It is quick and easy to find Bucharest to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

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

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

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

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 Illinois from Bucharest.

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

Yes. momondo can track prices for Bucharest to Illinois flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.