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O'Hare Intl

$422+ Cheap flights from Bucharest (BUH) to O'Hare Intl (ORD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
BUH — ORD
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Bucharest to O'Hare Intl

Cheapest flights from Bucharest to O'Hare Intl
Explore the most affordable flight options available from Bucharest to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/235:55 amOTP - ORD
1 stop15h 15mUnited Airlines
Wed 1/1411:05 amORD - OTP
2 stops18h 55mUnited Airlines
Deal found 12/16$702
This United Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/235:55 amOTP - ORD
2 stops32h 35mUnited Airlines
Tue 1/132:27 pmORD - OTP
2 stops15h 28mUnited Airlines
Deal found 12/16$707
This United Airlines deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:05 amOTP - ORD
1 stop15h 05mUnited Airlines
Mon 1/124:05 pmORD - OTP
1 stop14h 00mUnited Airlines
Deal found 12/16$760
This United Airlines deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:05 amOTP - ORD
1 stop15h 05mUnited Airlines
Tue 1/139:13 amORD - OTP
2 stops20h 42mUnited Airlines
Deal found 12/14$770
This Kiwi.com deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:05 pmOTP - ORD
1 stop13h 30mMultiple Airlines
Wed 1/146:30 pmORD - OTP
2 stops16h 25mMultiple Airlines
Deal found 12/14$773
This Kiwi.com deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/244:05 pmOTP - ORD
1 stop13h 30mMultiple Airlines
Sat 1/106:30 pmORD - OTP
2 stops34h 30mMultiple Airlines
Deal found 12/14$782
This United Airlines deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/242:40 pmOTP - ORD
1 stop13h 25mUnited Airlines
Sun 1/118:52 amORD - OTP
2 stops30h 58mUnited Airlines
Deal found 12/14$788
This United Airlines deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/235:55 amOTP - ORD
2 stops25h 49mUnited Airlines
Sun 1/118:52 amORD - OTP
2 stops30h 58mUnited Airlines
Deal found 12/14$793
This United Airlines deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/232:50 pmOTP - ORD
1 stop32h 30mUnited Airlines
Mon 1/125:59 pmORD - OTP
2 stops35h 56mUnited Airlines
Deal found 12/14$795
This Lufthansa deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/242:40 pmOTP - ORD
1 stop13h 25mLufthansa
Tue 1/139:50 pmORD - OTP
1 stop19h 15mLufthansa
Deal found 12/14$798

Find flight deals from Bucharest to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Bucharest (BUH) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 18, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$586
(FlightHub)

One-way from

$422
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$807

Good round-trip deal

$462 or less

Good one-way deal

$249 or less
Provider with most accurate pricing for Bucharest (BUH)-Chicago O'Hare Intl flight deals.
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Provider most trusted by Cheapflights users for Bucharest (BUH)-Chicago O'Hare Intl flights.
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From Bucharest (BUH) to Chicago O'Hare Intl
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One-way flight from Bucharest (BUH) to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Bucharest (BUH) to Chicago O'Hare Intl.
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Price to beat on a one-way flight from Bucharest (BUH) to Chicago O'Hare Intl.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Bucharest to O'Hare Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Bucharest to Chicago O'Hare Intl Airport that are best for you.

Fly from

Bucharest

Fly to

O'Hare Intl

Route

Depart

Return

Price

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Tue 3/24

9:50 pm-11:05 am

1 stop20h 15m

Chicago O'Hare Intl

Tue 5/5

7:50 pm-2:35 pm

1 stop34h 45m

$586

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sat 1/31

10:10 am-6:25 pm

1 stop16h 15m

Chicago O'Hare Intl

Sat 2/7

8:20 pm-8:30 pm

1 stop16h 10m

$608

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sun 2/1

9:50 pm-6:25 pm

1 stop28h 35m

Chicago O'Hare Intl

Tue 3/31

11:25 am-8:25 pm

1 stop25h 00m

$619

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sat 1/24

6:55 am-8:18 am

2 stops33h 23m

Chicago O'Hare Intl

Fri 2/6

6:30 pm-12:50 am

2 stops22h 20m

$637

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Fri 2/6

10:10 am-6:25 pm

1 stop16h 15m

Chicago O'Hare Intl

Sun 2/8

11:50 am-8:30 pm

1 stop24h 40m

$647

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Fri 1/16

2:35 pm-8:00 pm

1 stop13h 25m

Chicago O'Hare Intl

Fri 1/23

9:55 pm-1:45 am

1 stop19h 50m

$658

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sun 2/1

6:25 pm-7:55 pm

2 stops33h 30m

Chicago O'Hare Intl

Tue 3/31

9:50 pm-11:15 pm

1 stop17h 25m

$664

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sat 1/24

6:25 pm-7:55 pm

2 stops57h 30m

Chicago O'Hare Intl

Fri 2/6

9:55 pm-1:45 am

1 stop19h 50m

$667

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sat 1/24

6:25 pm-7:55 pm

2 stops57h 30m

Chicago O'Hare Intl

Sat 2/21

9:55 pm-11:15 pm

1 stop17h 20m

$671

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Tue 4/21

10:50 am-5:50 pm

2 stops39h 00m

$422

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 16 results
1
2

Compare providers for flights from Bucharest to O'Hare Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Bucharest to O'Hare Intl in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Bucharest-Chicago O'Hare Intl Airport flights, users find the pricing of Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on Bucharest-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. Justfly.com >95% of the time. Price accuracy is based on data collected from Bucharest-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bucharest-Chicago O'Hare Intl Airport flights, Cheapflights users trust Justfly.com the most. Justfly.com has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Bucharest-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Bucharest to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Bucharest with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Bucharest to Chicago O'Hare Intl Airport

What is the cheapest month to book a flight from Bucharest to Chicago O'Hare Intl Airport?

Currently, July is the cheapest month in which you can book a flight from Bucharest to Chicago O'Hare Intl Airport (average of $353). Flying from Bucharest to Chicago O'Hare Intl Airport in January is currently the most expensive (average of $642). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BUH to ORD?

Find hourly flight availability from Bucharest to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 49% on flights from Bucharest to Chicago O'Hare Intl Airport by exploring options for tickets in the morning.

How much does it cost to fly round-trip from Bucharest to Chicago O'Hare Intl Airport?

What’s the top layover airport for flights from Bucharest to Chicago O'Hare Intl Airport?

Share of 1-stop round-trip flights from Bucharest to Chicago O'Hare Intl Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.

Istanbul (IST) – chosen by Cheapflights users on 60% of 1-stop itineraries from Bucharest to Chicago O'Hare Intl Airport on Cheapflights.

What’s the cheapest layover airport for flights from Bucharest to Chicago O'Hare Intl Airport?

Average round-trip fare for 1-stop flights from Bucharest to Chicago O'Hare Intl Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Istanbul (IST) is the most affordable 1-stop option, with an average round-trip price of $505.

What’s the fastest layover option from Bucharest to Chicago O'Hare Intl Airport?

Shortest average travel time for 1-stop one-way flights from Bucharest to Chicago O'Hare Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Warsaw (WAW) have the shortest average one-way travel time for 1-stop routes: 13h 20m.

Which airport typically offers the quickest layover for flights from Bucharest to Chicago O'Hare Intl Airport?

Average layover duration for 1-stop one-way flights from Bucharest to Chicago O'Hare Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Warsaw (WAW) offer the fastest connection on this route, with an average layover time of 1h 18m.

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to O'Hare Intl. Reviews last updated December 18, 2025.
Read through reviews of airlines operating flights from Bucharest to Chicago O'Hare Intl Airport, such as KLM, LOT, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,428 reviews

Entertainment

7.1

Food

7.2

Crew

8.4

Boarding

7.8

Overall

7.7

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
KLM
7.7
Good
1,428 reviews
KLM
7.7
Good
1,428 reviews

Entertainment

7.1

Food

7.2

Crew

8.4

Boarding

7.8

Overall

7.7

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
LOT
7.5
Good
1,149 reviews
KLM
7.7
Good
1,428 reviews

Entertainment

7.1

Food

7.2

Crew

8.4

Boarding

7.8

Overall

7.7

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
United Airlines
7.4
Good
9,095 reviews
KLM
7.7
Good
1,428 reviews

Entertainment

7.1

Food

7.2

Crew

8.4

Boarding

7.8

Overall

7.7

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Turkish Airlines
7.3
Good
4,103 reviews
KLM
7.7
Good
1,428 reviews

Entertainment

7.1

Food

7.2

Crew

8.4

Boarding

7.8

Overall

7.7

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

Related info for your journey

Find useful and relevant information for your journey from Bucharest to O'Hare Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Bucharest to Chicago O'Hare Intl Airport?

    There are many flights that can get you from Bucharest to Chicago O'Hare Intl Airport in 20h 15m. Fly via Turkish Airlines to get the fastest option. Bucharest and Chicago O'Hare Intl Airport are separated by a distance of 5198 mi.

  • What are the cheapest airlines flying from Bucharest to Chicago O'Hare Intl Airport round-trip?

    Turkish Airlines, at $336, was found to be the cheapest airline from Bucharest to Chicago O'Hare Intl Airport.Alternate airlines to your destination round-trip include American Airlines and KLM. Turkish Airlines is priced at 57% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Bucharest to Chicago O'Hare Intl Airport one-way?

    $387 is the cheapest one-way deal found within the past few days, from Air Serbia. You may also be able to find cheap deals on Turkish Airlines and Lufthansa, with prices starting from $575 and $615, respectively.

  • What are the cheapest flights from Bucharest to Chicago O'Hare Intl Airport?

    The cheapest flight price from Bucharest to Chicago O'Hare Intl Airport is $244. On average you can expect to pay $359. The most popular route, (Bucharest Otopeni Intl - Chicago O'Hare Intl), can usually be booked for $509.

  • Can I find deals for flights from Bucharest to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Bucharest to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Bucharest to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bucharest to O'Hare Intl.

  • Can I find deals for business class flights from Bucharest to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Bucharest to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Bucharest to Chicago O'Hare Intl Airport?

    Currently, July is the cheapest month in which you can book a flight from Bucharest to Chicago O'Hare Intl Airport (average of $353). Flying from Bucharest to Chicago O'Hare Intl Airport in January is currently the most expensive (average of $642). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Schaumburg
Rosemont
Gurnee
Elgin
Naperville
Hoffman Estates
Beloit
Delavan
Oak Brook
Downers Grove
Des Plaines
Elk Grove Village
Skokie
Lake Geneva
Bridgeview
Warrenville
Waukegan
Aurora
Kenosha
Evanston

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Bucharest to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
Otopeni Intl to O'Hare Intl flights
Cluj Napoca to O'Hare Intl flights
Sibiu to O'Hare Intl flights
Iaşi to O'Hare Intl flights

Top 9 airlines flying from Bucharest to O'Hare Intl

Discover the top 9 airlines that operate flights from Bucharest to O'Hare Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$493Average$725FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$548Average$595FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$565Average$821FlexibilityNo cancel feeOn-time76%
KLMCheapest$570Average$823FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$571Average$815FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$581Average$696FlexibilityNo cancel feeOn-time70%
LOTCheapest$584Average$670FlexibilityNo cancel feeOn-time81%
Air FranceCheapest$621Average$662FlexibilityNo cancel feeOn-time77%
DeltaCheapest$623Average$634FlexibilityNo cancel feeOn-timeN/A

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