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O'Hare Intl

$378+ 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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
BUH — ORD
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap 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 July 30, 2025.

Round-trip from

$651
(American Airlines)

One-way from

$378
(Kiwi.com)

Popular in

August

Cheapest in

February

Average price

$906
From Bucharest (BUH) to Chicago O'Hare Intl
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One-way flight from Bucharest (BUH) to Chicago O'Hare Intl
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Highest demand for flights based on searches. 12% potential increase in price ($105 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 July 30, 2025.

This American Airlines deal was found by Cheapflights users on 7/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/68:25 amOTP - ORD
1 stop35h 25mAmerican Airlines
Sat 9/205:40 pmORD - OTP
1 stop12h 20mAmerican Airlines
Deal found 7/30$651
This Booking.com deal was found by Cheapflights users on 7/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/306:00 amOTP - ORD
1 stop13h 00mMultiple Airlines
Sat 10/187:05 pmORD - OTP
1 stop12h 15mMultiple Airlines
Deal found 7/29$652
This British Airways deal was found by Cheapflights users on 7/30. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/278:05 pmOTP - ORD
1 stop23h 45mBritish Airways
Sat 10/1110:35 pmORD - OTP
1 stop17h 55mBritish Airways
Deal found 7/30$660
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Mon 12/12:50 pmOTP - ORD
1 stop13h 15mUnited Airlines
Sun 12/1410:35 pmORD - OTP
1 stop17h 15mUnited Airlines
Deal found 7/30$661
This Lufthansa deal was found by Cheapflights users on 7/30. 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.
Fri 9/266:00 amOTP - ORD
2 stops20h 32mLufthansa
Fri 10/109:40 pmORD - OTP
1 stop19h 20mLufthansa
Deal found 7/30$669
This Scandinavian Airlines deal was found by Cheapflights users on 7/28. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/38:35 pmOTP - ORD
2 stops33h 21mScandinavian Airlines
Fri 9/1210:15 amORD - OTP
2 stops26h 20mScandinavian Airlines
Deal found 7/28$676
This Air Canada deal was found by Cheapflights users on 7/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/196:30 amOTP - ORD
2 stops19h 42mAir Canada
Wed 9/242:08 pmORD - OTP
2 stops15h 07mAir Canada
Deal found 7/28$680
This SWISS deal was found by Cheapflights users on 7/28. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/34:10 pmOTP - ORD
1 stop31h 45mSWISS
Sun 9/147:05 pmORD - OTP
1 stop34h 40mSWISS
Deal found 7/28$681
This Austrian Airlines deal was found by Cheapflights users on 7/28. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/36:55 pmOTP - ORD
2 stops31h 30mAustrian Airlines
Mon 9/154:20 pmORD - OTP
1 stop17h 45mAustrian Airlines
Deal found 7/28$686
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/276:30 amOTP - ORD
2 stops20h 35mDelta
Sat 10/1110:36 amORD - OTP
2 stops18h 04mDelta
Deal found 7/30$687
This KLM deal was found by Cheapflights users on 7/28. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/218:35 amOTP - ORD
1 stop13h 35mKLM
Wed 8/274:40 pmORD - OTP
1 stop14h 45mKLM
Deal found 7/28$715

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 July 30, 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

Sat 9/6

8:25 am-11:50 am

1 stop35h 25m

Chicago O'Hare Intl

Sat 9/20

5:40 pm-2:00 pm

1 stop12h 20m

$651

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Tue 9/30

6:00 am-11:00 am

1 stop13h 00m

Chicago O'Hare Intl

Sat 10/18

7:05 pm-3:20 pm

1 stop12h 15m

$652

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sat 9/27

8:05 pm-11:50 am

1 stop23h 45m

Chicago O'Hare Intl

Sat 10/11

10:35 pm-12:30 am

1 stop17h 55m

$660

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Thu 9/11

6:00 am-7:55 pm

1 stop21h 55m

Chicago O'Hare Intl

Thu 9/25

6:35 pm-11:40 pm

1 stop21h 05m

$661

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Tue 9/30

6:00 am-6:30 pm

2 stops20h 30m

Chicago O'Hare Intl

Sat 10/18

6:14 pm-6:35 pm

2 stops40h 21m

$663

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sat 9/6

7:00 am-5:37 pm

2 stops18h 37m

Chicago O'Hare Intl

Sat 9/20

5:00 pm-5:20 pm

2 stops16h 20m

$664

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Wed 9/3

8:35 pm-9:56 pm

2 stops33h 21m

Chicago O'Hare Intl

Fri 9/12

10:15 am-8:35 pm

2 stops26h 20m

$676

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Fri 9/19

6:30 am-6:12 pm

2 stops19h 42m

Chicago O'Hare Intl

Wed 9/24

2:08 pm-1:15 pm

2 stops15h 07m

$680

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Wed 9/3

4:10 pm-3:55 pm

1 stop31h 45m

Chicago O'Hare Intl

Mon 9/15

7:05 pm-3:20 pm

1 stop12h 15m

$681

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Wed 9/3

6:55 pm-6:25 pm

2 stops31h 30m

Chicago O'Hare Intl

Mon 9/15

4:20 pm-6:05 pm

1 stop17h 45m

$686

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 18 results
1
2

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, August is the cheapest month in which you can book a flight from Bucharest to Chicago O'Hare Intl Airport (average of $245). Flying from Bucharest to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 July 30, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 22% on flights from Bucharest to Chicago O'Hare Intl Airport by exploring options for tickets at noon.

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 July 30, 2025.
Read through reviews of airlines operating flights from Bucharest to Chicago O'Hare Intl Airport, such as Delta, KLM, and Austrian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,980 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Austrian Airlines
7.6
Good
823 reviews
Delta
8.0
Very good
7,980 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
SWISS
7.5
Good
1,686 reviews
Delta
8.0
Very good
7,980 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

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.

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

    American Airlines, at $651, was found to be the cheapest airline from Bucharest to Chicago O'Hare Intl Airport.Alternate airlines to your destination round-trip include British Airways and Lufthansa. American Airlines is priced at 11% 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?

    $493 is the cheapest one-way deal found within the past few days, from ITA Airways. You may also be able to find cheap deals on Air Serbia and Scandinavian Airlines, with prices starting from $559 and $571, respectively.

  • 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, August is the cheapest month in which you can book a flight from Bucharest to Chicago O'Hare Intl Airport (average of $245). Flying from Bucharest to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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
Beloit
Hoffman Estates
Skokie
Naperville
Des Plaines
Elgin
Arlington Heights
Elk Grove Village
Racine
Rockford
Tinley Park
Orland Park
Merrillville
Downers Grove
Evanston
Lake Geneva
Gurnee
Joliet

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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
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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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$336Average$760FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$548Average$595FlexibilityNo cancel feeOn-time71%
KLMCheapest$570Average$707FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$581Average$654FlexibilityNo cancel feeOn-time77%
LOTCheapest$583Average$618FlexibilityNo cancel feeOn-time81%
LufthansaCheapest$593Average$849FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$594Average$808FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$597Average$695FlexibilityNo cancel feeOn-time70%
DeltaCheapest$623Average$634FlexibilityNo cancel feeOn-timeN/A

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