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$422+ Cheap flights from Bucharest (BUH) to Chicago (CHI)

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 — CHI
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Find cheap flights from Bucharest to Chicago with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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Cheapflights Tip: The best prices from Bucharest to Chicago are usually found in September or February, booked 78 days in advance, depart on a Saturday or Thursday and return on a Monday

Cheap flight deals from Bucharest to Chicago

Cheapest flights from Bucharest to Chicago
Explore the most affordable flight options available from Bucharest to Chicago. 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
This Delta deal was found by Cheapflights users on 12/17. 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.
Mon 12/226:00 amOTP - MDW
2 stops19h 26mDelta
Sat 1/179:32 amMDW - OTP
2 stops19h 28mDelta
Deal found 12/17$896
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:00 amOTP - MDW
2 stops20h 18mDelta
Tue 1/1311:21 amMDW - OTP
2 stops16h 44mDelta
Deal found 12/16$902

Find flight deals from Bucharest to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Bucharest (BUH) to Chicago (CHI). 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

July

Cheapest in

September

Average price

$773

Good round-trip deal

$462 or less

Good one-way deal

$249 or less
Provider with most accurate pricing for Bucharest (BUH)-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bucharest (BUH)-Chicago (CHI) flights.
Search Deals
From Bucharest (BUH) to Chicago (CHI)
Search Deals
One-way flight from Bucharest (BUH) to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($76 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Bucharest (BUH) to Chicago (CHI).
Search Deals
Price to beat on a one-way flight from Bucharest (BUH) to Chicago (CHI).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bucharest to Chicago 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 that are best for you.

Fly from

Bucharest

Fly to

Chicago

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 - MDW

OTPMDW

Bucharest Otopeni Intl

Sun 2/1

6:00 am-5:55 pm

2 stops19h 55m

Chicago Midway

Tue 3/31

12:47 pm-12:10 pm

2 stops15h 23m

$698

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 24 results
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Compare providers for flights from Bucharest to Chicago

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 Chicago in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star

*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 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 flight deals on Cheapflights vs. Justfly.com >95% of the time. Price accuracy is based on data collected from Bucharest-Chicago flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bucharest-Chicago 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 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 Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago 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

How far ahead should I book a flight from Bucharest to Chicago?

Use this chart to determine the optimal time to book a round-trip flight from Bucharest to Chicago. Price data was last updated on December 12, 2025.

Booking 78 days in advance of your planned departure date is, on average, the best time to get cheap flights from Bucharest to Chicago. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Bucharest to Chicago?

Currently, July is the cheapest month in which you can book a flight from Bucharest to Chicago (average of $353). Flying from Bucharest to Chicago 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 CHI?

Find hourly flight availability from Bucharest to Chicago. 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.

A simple way to save on the total cost of your ticket is to fly from Bucharest to Chicago in the morning. If you’re flexible enough to do this you can expect to save up to 49% on your trip compared to booking a flight in the evening.

How much does it cost to fly round-trip from Bucharest to Chicago?

What’s the top layover airport for flights from Bucharest to Chicago?

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

Warsaw (WAW) – chosen by Cheapflights users on 52% of 1-stop itineraries from Bucharest to Chicago on Cheapflights.

What’s the cheapest layover airport for flights from Bucharest to Chicago?

Average round-trip fare for 1-stop flights from Bucharest to Chicago, 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 $489.

What’s the fastest layover option from Bucharest to Chicago?

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

Flights via Frankfurt am Main (FRA) 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?

Average layover duration for 1-stop one-way flights from Bucharest to Chicago, 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 Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated December 18, 2025.
Get a feel of what it's like to fly with KLM, LOT, and SWISS from Bucharest to Chicago by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,428 reviews

Crew

8.4

Boarding

7.8

Food

7.2

Overall

7.7

Entertainment

7.1

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

Crew

8.4

Boarding

7.8

Food

7.2

Overall

7.7

Entertainment

7.1

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

Crew

8.4

Boarding

7.8

Food

7.2

Overall

7.7

Entertainment

7.1

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
SWISS
7.5
Good
1,817 reviews
KLM
7.7
Good
1,428 reviews

Crew

8.4

Boarding

7.8

Food

7.2

Overall

7.7

Entertainment

7.1

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
Lufthansa
6.8
Okay
7,637 reviews
KLM
7.7
Good
1,428 reviews

Crew

8.4

Boarding

7.8

Food

7.2

Overall

7.7

Entertainment

7.1

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
British Airways
6.7
Okay
7,586 reviews
KLM
7.7
Good
1,428 reviews

Crew

8.4

Boarding

7.8

Food

7.2

Overall

7.7

Entertainment

7.1

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 Chicago. 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?

    There are many flights that can get you from Bucharest to Chicago in 18h 16m. Fly via Turkish Airlines, Delta, or KLM to get the fastest option. Bucharest and Chicago are separated by a distance of 5203 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Bucharest to Chicago round-trip?

    Turkish Airlines, at $336, was found to be the cheapest airline from Bucharest to Chicago.Alternate airlines to your destination round-trip include American Airlines and KLM. These flights start at 53% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Bucharest to Chicago one-way?

    The cheapest airline one-way is Air Serbia, with whom users have recently found tickets for as low as $387. However, be on the lookout for offers from Turkish Airlines and Lufthansa, as they are both options that can get you from Bucharest to Chicago for a low price.

  • What are the cheapest flights from Bucharest to Chicago?

    The cheapest flight price from Bucharest to Chicago 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 Chicago that include hotel bookings?

    Yes. In addition to deals on Bucharest to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Bucharest to Chicago?

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

  • Can I find deals for business class flights from Bucharest to Chicago?

    Yes. Cheapflights offers flight deals from Bucharest to Chicago 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?

    Currently, July is the cheapest month in which you can book a flight from Bucharest to Chicago (average of $353). Flying from Bucharest to Chicago 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?

Book flights to Chicago if you plan to visit one of these locations
Lansing
Merrillville
Hammond
Porter
Benton Harbor

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Bucharest to Chicago

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
Cluj Napoca to St. Louis flights
Iaşi to O'Hare Intl flights
Otopeni Intl to St. Louis flights

Top 9 airlines flying from Bucharest to Chicago

Discover the top 9 airlines that operate flights from Bucharest to Chicago. 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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