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

British Airways, Air Serbia, and Aeromexico are the most popular carriers operating from Bucharest Otopeni Intl to Illinois

What airlines fly to Illinois?

LOT, Lufthansa 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 35% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 7 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 7 operators available for flights from Bucharest Otopeni Intl Airport to Illinois as of July 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.

$378 Cheap Flights from Bucharest Otopeni Intl Airport to Illinois in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Bucharest Otopeni Intl Airport to Illinois

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:35 am - 6:15 pm

OTP

ORD

20h 40m

3 stops

7:25 pm - 12:35 am

ORD

OTP

21h 10m

2 stops

$770Multiple Airlines

Fri, Sep 11 - Sun, Sep 27

5:35 am - 3:10 pm

OTP

ORD

41h 35m

2 stops

9:50 pm - 5:40 pm

ORD

OTP

11h 50m

1 stop

$772LOT

Tue, Sep 8 - Mon, Nov 9

8:20 am - 3:10 pm

OTP

ORD

14h 50m

1 stop

9:50 pm - 11:15 pm

ORD

OTP

17h 25m

1 stop

$774LOT

Thu, Sep 10 - Thu, Nov 5

6:35 am - 5:20 pm

OTP

ORD

18h 45m

2 stops

12:55 pm - 6:05 pm

ORD

OTP

21h 10m

2 stops

$780Austrian Airlines

Thu, Oct 1 - Sat, Oct 10

1:45 pm - 7:55 pm

OTP

ORD

14h 10m

1 stop

6:05 pm - 11:55 pm

ORD

OTP

21h 50m

1 stop

$814Lufthansa

Wed, Sep 9 - Thu, Dec 24

1:45 pm - 7:55 pm

OTP

ORD

14h 10m

1 stop

10:35 pm - 11:55 pm

ORD

OTP

17h 20m

1 stop

$819Lufthansa

Wed, Sep 9 - Wed, Dec 23

8:35 am - 6:19 pm

OTP

MDW

17h 44m

2 stops

6:45 pm - 5:20 pm

MDW

OTP

14h 35m

2 stops

$826KLM

Mon, Oct 5 - Mon, Oct 12

8:35 am - 2:15 pm

OTP

ORD

13h 40m

1 stop

5:24 pm - 3:25 pm

ORD

OTP

14h 01m

2 stops

$828KLM

Tue, Sep 8 - Sun, Nov 8

7:35 am - 1:45 pm

OTP

ORD

14h 10m

1 stop

9:50 pm - 11:45 pm

ORD

OTP

17h 55m

1 stop

$828British Airways

Sun, Nov 22 - Sat, Dec 12

8:05 am - 6:45 pm

OTP

ORD

18h 40m

1 stop

5:10 pm - 11:45 pm

ORD

OTP

22h 35m

1 stop

$828British Airways

Sat, Nov 21 - Sat, Dec 12

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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

Oct 29

OTP7:10 pmBucharest Otopeni Intl

35h 29m

2 stops

ORD11:39 pmChicago O'Hare Intl

Jan 5

ORD8:55 amChicago O'Hare Intl

19h 35m

2 stops

OTP12:30 pmBucharest Otopeni Intl

$800

United Airlines

Sep 8

OTP1:50 pmBucharest Otopeni Intl

14h 05m

1 stop

ORD7:55 pmChicago O'Hare Intl

Nov 7

ORD4:20 pmChicago O'Hare Intl

12h 10m

1 stop

OTP12:30 pmBucharest Otopeni Intl

$813

United Airlines

Aug 24

OTP1:50 pmBucharest Otopeni Intl

14h 05m

1 stop

ORD7:55 pmChicago O'Hare Intl

Sep 2

ORD1:55 pmChicago O'Hare Intl

20h 40m

2 stops

OTP6:35 pmBucharest Otopeni Intl

$815

Lufthansa flights from Bucharest Otopeni Intl Airport to Illinois

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

Lufthansa

Sep 9

OTP1:45 pmBucharest Otopeni Intl

14h 10m

1 stop

ORD7:55 pmChicago O'Hare Intl

Dec 24

ORD6:05 pmChicago O'Hare Intl

21h 50m

1 stop

OTP11:55 pmBucharest Otopeni Intl

$814

Lufthansa

Aug 9

OTP6:05 amBucharest Otopeni Intl

15h 20m

1 stop

STL1:25 pmLambert-St Louis

Aug 13

STL12:59 pmLambert-St Louis

15h 01m

2 stops

OTP12:00 pmBucharest Otopeni Intl

$1,505

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

Fri 9/11

5:35 am-6:15 pm

3 stops20h 40m

Chicago O'Hare Intl

Sun 9/27

7:25 pm-12:35 am

2 stops21h 10m

$770

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Tue 9/8

5:35 am-3:10 pm

2 stops41h 35m

Chicago O'Hare Intl

Mon 11/9

9:50 pm-5:40 pm

1 stop11h 50m

$772

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Thu 9/10

8:20 am-3:10 pm

1 stop14h 50m

Chicago O'Hare Intl

Thu 11/5

9:50 pm-11:15 pm

1 stop17h 25m

$774

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Thu 10/1

6:35 am-5:20 pm

2 stops18h 45m

Chicago O'Hare Intl

Sat 10/10

12:55 pm-6:05 pm

2 stops21h 10m

$780

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Wed 9/9

1:45 pm-7:55 pm

1 stop14h 10m

Chicago O'Hare Intl

Thu 12/24

6:05 pm-11:55 pm

1 stop21h 50m

$814

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Wed 9/9

1:45 pm-7:55 pm

1 stop14h 10m

Chicago O'Hare Intl

Wed 12/23

10:35 pm-11:55 pm

1 stop17h 20m

$819

BucharestChicago

OTP - MDW

OTPMDW

Bucharest Otopeni Intl

Mon 10/5

8:35 am-6:19 pm

2 stops17h 44m

Chicago Midway

Mon 10/12

6:45 pm-5:20 pm

2 stops14h 35m

$826

Quickest round-trip

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Tue 9/8

8:35 am-2:15 pm

1 stop13h 40m

Chicago O'Hare Intl

Sun 11/8

5:24 pm-3:25 pm

2 stops14h 01m

$828

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sun 11/22

7:35 am-1:45 pm

1 stop14h 10m

Chicago O'Hare Intl

Sat 12/12

9:50 pm-11:45 pm

1 stop17h 55m

$828

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sat 11/21

8:05 am-6:45 pm

1 stop18h 40m

Chicago O'Hare Intl

Sat 12/12

5:10 pm-11:45 pm

1 stop22h 35m

$828

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 $659, 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 $702.

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 $770. 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 $814 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 $589 on momondo.

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

There is only 1 cabin class 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	$868
Fastest flight time	13h 05m
Direct flights	None

The best flight deal from Bucharest Otopeni Intl Airport to Illinois found on momondo in the last 72 hours is $868

The fastest flight from Bucharest Otopeni Intl Airport to Illinois takes 13h 05m

There are no direct flights from Bucharest Otopeni Intl Airport to Illinois. There are no popular flight routes from Bucharest Otopeni Intl Airport to Illinois.

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 7 operators available for flights from Bucharest Otopeni Intl Airport to Illinois as of July 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 62.50% of all bookings. The subsequent popular model is Airbus A330-200 at 37.50%.

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
HiSky	PriceFrom $426	Free Cancellation	Rating 0.0	Search HiSky flights
Lufthansa	PriceFrom $603	Free Cancellation	Rating 6.8 8,162 reviews	Search Lufthansa flights
Turkish Airlines	PriceFrom $608	Free Cancellation	Rating 7.4 4,454 reviews	Search Turkish Airlines flights
LOT	PriceFrom $620	Free Cancellation	Rating 7.5 1,215 reviews	Search LOT flights
Air France	PriceFrom $654	Free Cancellation	Rating 7.5 1,628 reviews	Search Air France flights
KLM	PriceFrom $657	Free Cancellation	Rating 7.8 1,550 reviews	Search KLM flights
British Airways	PriceFrom $660	Free Cancellation	Rating 6.7 8,129 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.