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

SWISS and British Airways are the most popular carriers operating from Illinois to Bucharest

What airlines fly to Bucharest?

Lufthansa, HiSky and United Airlines are the top three most popular airlines that fly to Bucharest from Illinois according to our data. Lufthansa is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Bucharest. Keep in mind that there are 12 different airlines that fly to Bucharest 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 Bucharest?

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

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

As of November 2026, there are 12 operators available to choose from for flights from Illinois to Bucharest.

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

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 Illinois to Bucharest.

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

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

$317 Cheap Flights from Illinois to Bucharest in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to Bucharest

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:50 pm - 1:45 amORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

19h 55m1 stop Warsaw Frederic Chopin

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

33h 25m1 stop Warsaw Frederic Chopin

$679LOT

Tue, Feb 16 - Tue, Mar 2

9:50 pm - 1:45 amORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

19h 55m1 stop Warsaw Frederic Chopin

5:35 am - 7:55 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

22h 20m1 stop Warsaw Frederic Chopin

$683LOT

Tue, Feb 9 - Tue, Feb 23

6:50 pm - 3:50 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

13h 00m1 stop Zurich

10:35 am - 5:20 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

38h 45m2 stops Gdansk Rebiechowo Reykjavik Keflavik Intl

$684Multiple Airlines

Mon, Feb 15 - Mon, Mar 1

6:50 pm - 1:15 amORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

22h 25m1 stop Zurich

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

31h 35m1 stop Zurich

$685SWISS

Mon, Feb 15 - Mon, Mar 1

6:50 pm - 1:15 amORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

22h 25m1 stop Zurich

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

31h 35m1 stop Zurich

$686SWISS

Wed, Feb 10 - Wed, Feb 24

6:30 pm - 1:30 amORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

23h 00m2 stops Reykjavik Keflavik Intl Rome Fiumicino

7:40 am - 5:20 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

17h 40m2 stops Rome Fiumicino Reykjavik Keflavik Intl

$687Multiple Airlines

Wed, Dec 2 - Wed, Dec 16

10:50 pm - 1:00 amORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

19h 10m1 stop Munich Franz Josef Strauss

1:35 pm - 7:55 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

14h 20m1 stop Frankfurt am Main

$694Lufthansa

Wed, Mar 17 - Wed, Mar 31

11:45 am - 2:15 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

18h 30m1 stop Istanbul

12:45 pm - 10:00 amOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

29h 15m1 stop Istanbul

$697Turkish Airlines

Thu, Jan 7 - Thu, Jan 21

8:15 pm - 8:15 pmORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

16h 00m1 stop Istanbul

9:35 pm - 10:00 amOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

20h 25m1 stop Istanbul

$697Turkish Airlines

Thu, Jan 14 - Wed, Jan 27

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

12h 40m1 stop Munich Franz Josef Strauss

6:00 am - 8:05 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

22h 05m1 stop Frankfurt am Main

$788Lufthansa

Wed, Dec 9 - Wed, Dec 16

Cheap last minute flights

Enter your travel dates to find the best prices.

9:50 pm - 1:45 amORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

19h 55m1 stop Warsaw Frederic Chopin

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

33h 25m1 stop Warsaw Frederic Chopin

$834LOT

Mon, Nov 16 - Mon, Feb 22

9:50 pm - 1:45 amORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

19h 55m1 stop Warsaw Frederic Chopin

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

33h 25m1 stop Warsaw Frederic Chopin

$850LOT

Mon, Nov 16 - Mon, Feb 22

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

$868Multiple Airlines

Tue, Nov 17 - Tue, Dec 22

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

12h 40m1 stop Munich Franz Josef Strauss

6:30 am - 4:15 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

17h 45m1 stop Zurich

$868Multiple Airlines

Tue, Nov 17 - Wed, Dec 16

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

12h 40m1 stop Munich Franz Josef Strauss

1:10 pm - 6:25 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

13h 15m1 stop Munich Franz Josef Strauss

$871Lufthansa

Tue, Nov 17 - Wed, Dec 23

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

12h 40m1 stop Munich Franz Josef Strauss

6:00 am - 1:10 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

15h 10m1 stop Frankfurt am Main

$893Lufthansa

Tue, Nov 17 - Tue, Jan 12

6:50 pm - 1:15 amORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

22h 25m1 stop Zurich

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

31h 35m1 stop Zurich

$893SWISS

Wed, Nov 18 - Tue, Jan 12

6:50 pm - 1:15 amORD Chicago O'Hare Intl-OTP Bucharest Otopeni Intl

22h 25m1 stop Zurich

6:30 am - 4:15 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

17h 45m1 stop Zurich

$896SWISS

Tue, Nov 17 - Wed, Jan 13

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

20h 50m1 stop Paris Charles de Gaulle

6:00 am - 2:25 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

16h 25m1 stop Amsterdam Schiphol

$935Delta

Wed, Nov 18 - Thu, Dec 24

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

20h 50m1 stop Paris Charles de Gaulle

2:00 pm - 2:25 pmOTP Bucharest Otopeni Intl-ORD Chicago O'Hare Intl

32h 25m1 stop Amsterdam Schiphol

$935Delta

Wed, Nov 18 - Tue, Dec 15

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Turkish Airlines flights from Illinois to Bucharest

Our best Turkish Airlines deals on Illinois to Bucharest flight tickets

Turkish Airlines

Jan 7

ORD11:45 amChicago O'Hare Intl

18h 30m

1 stop

OTP2:15 pmBucharest Otopeni Intl

Jan 21

OTP12:45 pmBucharest Otopeni Intl

29h 15m

1 stop

ORD10:00 amChicago O'Hare Intl

$697

Turkish Airlines

Nov 29

ORD11:45 amChicago O'Hare Intl

18h 30m

1 stop

OTP2:15 pmBucharest Otopeni Intl

Dec 11

OTP3:35 pmBucharest Otopeni Intl

26h 25m

1 stop

ORD10:00 amChicago O'Hare Intl

$698

Turkish Airlines

Feb 11

ORD8:15 pmChicago O'Hare Intl

31h 40m

1 stop

OTP11:55 amBucharest Otopeni Intl

Feb 25

OTP3:35 pmBucharest Otopeni Intl

34h 45m

1 stop

ORD6:20 pmChicago O'Hare Intl

$699

Air Canada flights from Illinois to Bucharest

Our best Air Canada deals on Illinois to Bucharest flight tickets

Air Canada

Apr 20

ORD4:30 pmChicago O'Hare Intl

14h 50m

2 stops

OTP3:20 pmBucharest Otopeni Intl

Apr 28

OTP6:20 amBucharest Otopeni Intl

21h 33m

2 stops

ORD7:53 pmChicago O'Hare Intl

$707

Air Canada

Feb 28

ORD4:30 pmChicago O'Hare Intl

37h 25m

2 stops

OTP1:55 pmBucharest Otopeni Intl

Mar 3

OTP6:30 amBucharest Otopeni Intl

20h 10m

2 stops

ORD6:40 pmChicago O'Hare Intl

$743

Air Canada

Nov 16

ORD4:30 pmChicago O'Hare Intl

15h 20m

2 stops

OTP3:50 pmBucharest Otopeni Intl

Jan 13

OTP6:00 amBucharest Otopeni Intl

21h 52m

2 stops

ORD7:52 pmChicago O'Hare Intl

$947

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBucharest

ORD Chicago O'Hare Intl - OTP Bucharest Otopeni Intl

ORDOTP

Chicago O'Hare Intl

Tue 2/16

9:50 pm-1:45 am

1 stop19h 55m

Bucharest Otopeni Intl

Tue 3/2

6:30 pm-7:55 pm

1 stop33h 25m

$679

ChicagoBucharest

ORD Chicago O'Hare Intl - OTP Bucharest Otopeni Intl

ORDOTP

Chicago O'Hare Intl

Tue 2/9

9:50 pm-1:45 am

1 stop19h 55m

Bucharest Otopeni Intl

Tue 2/23

5:35 am-7:55 pm

1 stop22h 20m

$683

ChicagoBucharest

ORD Chicago O'Hare Intl - OTP Bucharest Otopeni Intl

ORDOTP

Chicago O'Hare Intl

Mon 2/15

6:50 pm-3:50 pm

1 stop13h 00m

Bucharest Otopeni Intl

Mon 3/1

10:35 am-5:20 pm

2 stops38h 45m

$684

ChicagoBucharest

ORD Chicago O'Hare Intl - OTP Bucharest Otopeni Intl

ORDOTP

Chicago O'Hare Intl

Mon 2/15

6:50 pm-1:15 am

1 stop22h 25m

Bucharest Otopeni Intl

Mon 3/1

4:40 pm-4:15 pm

1 stop31h 35m

$685

ChicagoBucharest

ORD Chicago O'Hare Intl - OTP Bucharest Otopeni Intl

ORDOTP

Chicago O'Hare Intl

Wed 2/10

6:50 pm-1:15 am

1 stop22h 25m

Bucharest Otopeni Intl

Wed 2/24

4:40 pm-4:15 pm

1 stop31h 35m

$686

ChicagoBucharest

ORD Chicago O'Hare Intl - OTP Bucharest Otopeni Intl

ORDOTP

Chicago O'Hare Intl

Wed 12/2

6:30 pm-1:30 am

2 stops23h 00m

Bucharest Otopeni Intl

Wed 12/16

7:40 am-5:20 pm

2 stops17h 40m

$687

Quickest round-trip

ChicagoBucharest

ORD Chicago O'Hare Intl - OTP Bucharest Otopeni Intl

ORDOTP

Chicago O'Hare Intl

Wed 3/17

10:50 pm-1:00 am

1 stop19h 10m

Bucharest Otopeni Intl

Wed 3/31

1:35 pm-7:55 pm

1 stop14h 20m

$694

ChicagoBucharest

ORD Chicago O'Hare Intl - OTP Bucharest Otopeni Intl

ORDOTP

Chicago O'Hare Intl

Thu 1/7

11:45 am-2:15 pm

1 stop18h 30m

Bucharest Otopeni Intl

Thu 1/21

12:45 pm-10:00 am

1 stop29h 15m

$697

ChicagoBucharest

ORD Chicago O'Hare Intl - OTP Bucharest Otopeni Intl

ORDOTP

Chicago O'Hare Intl

Thu 1/14

8:15 pm-8:15 pm

1 stop16h 00m

Bucharest Otopeni Intl

Wed 1/27

9:35 pm-10:00 am

1 stop20h 25m

$697

ChicagoBucharest

ORD Chicago O'Hare Intl - OTP Bucharest Otopeni Intl

ORDOTP

Chicago O'Hare Intl

Wed 12/9

9:50 pm-6:30 pm

1 stop12h 40m

Bucharest Otopeni Intl

Wed 12/16

6:00 am-8:05 pm

1 stop22h 05m

$788

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 Bucharest

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 Bucharest?

In general, January is the cheapest month to fly from Illinois to Bucharest. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $574. If you aren’t able to travel to Bucharest during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $578.

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

Our data shows that Tuesday is the least expensive day to fly to Bucharest. Tickets to fly out on this day can be as low as $853. The most expensive day to fly to Bucharest is Friday, with ticket prices averaging around $893.

What is the cheapest Illinois to Bucharest flight route?

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

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

You are more likely to see cheaper flights to Bucharest from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Bucharest for around $865 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bucharest from Illinois for as low as $365 on momondo.

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

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

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

Cheap Illinois to Bucharest flight deals and tips

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

Best Price Found	$317
Fastest flight time	12h 15m
Direct flights	None

The best one-way flight to Bucharest from Illinois in the past 72 hours is $317. The best round-trip flight deal from Illinois to Bucharest found on momondo in the last 72 hours is $679.

The fastest flight from Illinois to Bucharest takes 12h 15m

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

Search flight deals

Frequently asked questions about flying from Illinois to Bucharest

When did momondo last update prices for flights from Illinois to Bucharest?
Prices for flights from Illinois to Bucharest are refreshed on a daily basis.
How many operators does momondo search for flights from Illinois to Bucharest?
As of November 2026, there are 12 operators available to choose from for flights from Illinois to Bucharest.
How old do you have to be to fly from Illinois to Bucharest?
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 Illinois to Bucharest.
What documentation or ID do you need to fly to Bucharest?
The travel and health documents you'll need for your trip to Bucharest 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 Bucharest. 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 Illinois to Bucharest?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Illinois to Bucharest is Airbus A330 (70.00% of total bookings). The next most popular plane model is Airbus A330-200 (30.00%).

Best airlines flying from Illinois to Bucharest

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

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $300	Free Cancellation	Rating 7.3 10,491 reviews	Search United Airlines flights
British Airways	PriceFrom $418	Free Cancellation	Rating 6.7 8,279 reviews	Search British Airways flights
Air France	PriceFrom $510	Free Cancellation	Rating 7.5 1,650 reviews	Search Air France flights
Turkish Airlines	PriceFrom $529	Free Cancellation	Rating 7.4 4,465 reviews	Search Turkish Airlines flights
Lufthansa	PriceFrom $563	Free Cancellation	Rating 6.8 8,295 reviews	Search Lufthansa flights
KLM	PriceFrom $568	Free Cancellation	Rating 7.8 1,597 reviews	Search KLM flights
SWISS	PriceFrom $569	Free Cancellation	Rating 7.5 2,119 reviews	Search SWISS flights
Delta	PriceFrom $575	Free Cancellation	Rating 7.8 8,716 reviews	Search Delta flights
Air Serbia	PriceFrom $582	Free Cancellation	Rating 6.1 238 reviews	Search Air Serbia flights
American Airlines	PriceFrom $688	Free Cancellation	Rating 7.0 12,231 reviews	Search American Airlines flights

Otopeni

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Illinois to Bucharest. Millions of users trust and use momondo every year so you are in good hands.

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

Flights from Illinois to Bucharest with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Illinois and Bucharest by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Bucharest from Illinois. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Bucharest trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Fly into one of these airports located in Bucharest

Bucharest Otopeni Intl Airport

Cheap flights from Illinois to Bucharest from $317

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Bucharest departing on 2/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Illinois to Bucharest

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

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Turkish Airlines flights from Illinois to Bucharest

Our best Turkish Airlines deals on Illinois to Bucharest flight tickets

Air Canada flights from Illinois to Bucharest

Our best Air Canada deals on Illinois to Bucharest flight tickets

momondo Fare Finder

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

See travel insights to Bucharest from

How to get the cheapest flight ticket from Illinois to Bucharest

What is the cheapest month to fly to Bucharest?

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

What is the cheapest Illinois to Bucharest flight route?

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

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

Can stopping save me money on Illinois to Bucharest flights?

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

What airlines fly to Bucharest?

Cheap Illinois to Bucharest flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Illinois to Bucharest

Best airlines flying from Illinois to Bucharest

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

Traveling to a place near Bucharest?

Why use momondo?

An easier way to manage your Bucharest trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Romania

Fly into one of these airports located in Bucharest

Airports listed have a maximum distance of 9.6 mi from Bucharest

Fly your favorite airline to Bucharest

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Bucharest

List of cabin classes available on flights landing in Bucharest. Availability may vary depending on flight origin and airline.

Popular cities in Romania

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Illinois

According to popular flight searches on momondo this year

Complete your trip to Bucharest

Explore popular destinations other users love

According to popular flight searches on momondo this year