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$535+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
BUH — CHI
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from Bucharest to Chicago are usually found in February or April, booked 86 days in advance, depart on a Saturday or Tuesday and return on a Monday

Cheap 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 July 31, 2025.

Round-trip from

$649
(American Airlines)

One-way from

$535
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$871
From Bucharest (BUH) to Chicago (CHI)
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One-way flight from Bucharest (BUH) to Chicago (CHI)
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Highest demand for flights based on searches. 9% potential increase in price ($74 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 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 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 July 31, 2025.

This American Airlines deal was found by Cheapflights users on 7/31. 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 9/201:59 pmORD - OTP
2 stops16h 01mAmerican Airlines
Deal found 7/31$649
This Delta deal was found by Cheapflights users on 7/31. 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.
Sun 9/147:00 amOTP - ORD
1 stop15h 10mDelta
Wed 10/110:40 amORD - OTP
2 stops17h 30mDelta
Deal found 7/31$650
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.
Tue 9/166:00 amOTP - ORD
1 stop16h 55mLufthansa
Sun 10/59:40 pmORD - OTP
1 stop19h 20mLufthansa
Deal found 7/30$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.
Tue 9/166:15 pmOTP - ORD
1 stop27h 35mBritish Airways
Thu 10/25:40 pmORD - OTP
1 stop12h 50mBritish Airways
Deal found 7/30$653
This KLM deal was found by Cheapflights users on 7/31. 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.
Sun 9/146:05 pmOTP - ORD
1 stop28h 35mMultiple Airlines
Sun 9/215:10 pmORD - OTP
1 stop14h 40mMultiple Airlines
Deal found 7/31$654
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 9/156:00 amOTP - ORD
1 stop21h 55mUnited Airlines
Mon 9/2910:45 amORD - OTP
2 stops18h 20mUnited Airlines
Deal found 7/30$655
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/176:00 amOTP - ORD
2 stops16h 55mAir Canada
Wed 10/110:40 amORD - OTP
2 stops20h 40mAir Canada
Deal found 7/30$656
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.
Thu 9/187:00 amOTP - MDW
2 stops22h 36mDelta
Thu 10/210:35 amMDW - OTP
2 stops17h 35mDelta
Deal found 7/30$658
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/281:45 pmOTP - ORD
1 stop32h 25mKLM
Fri 9/124:15 pmORD - OTP
1 stop15h 10mKLM
Deal found 7/30$665
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/309:25 pmOTP - ORD
1 stop26h 45mScandinavian Airlines
Sat 9/137:25 amORD - OTP
2 stops29h 10mScandinavian Airlines
Deal found 7/30$673

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 July 31, 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

Sat 9/6

8:25 am-11:50 am

1 stop35h 25m

Chicago O'Hare Intl

Sat 9/20

1:59 pm-2:00 pm

2 stops16h 01m

$649

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sun 9/14

7:00 am-2:10 pm

1 stop15h 10m

Chicago O'Hare Intl

Wed 10/1

10:40 am-12:10 pm

2 stops17h 30m

$650

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Tue 9/16

6:00 am-2:55 pm

1 stop16h 55m

Chicago O'Hare Intl

Mon 9/29

9:40 pm-1:00 am

1 stop19h 20m

$652

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Tue 9/16

6:15 pm-1:50 pm

1 stop27h 35m

Chicago O'Hare Intl

Thu 10/2

5:40 pm-2:30 pm

1 stop12h 50m

$653

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sun 9/14

6:05 pm-2:40 pm

1 stop28h 35m

Chicago O'Hare Intl

Sun 9/21

5:10 pm-3:50 pm

1 stop14h 40m

$654

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Mon 9/15

6:00 am-7:55 pm

1 stop21h 55m

Chicago O'Hare Intl

Sun 10/5

10:30 pm-11:50 pm

1 stop17h 20m

$655

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Wed 9/17

6:00 am-2:55 pm

2 stops16h 55m

Chicago O'Hare Intl

Wed 10/1

10:40 am-3:20 pm

2 stops20h 40m

$656

BucharestChicago

OTP - MDW

OTPMDW

Bucharest Otopeni Intl

Thu 9/18

7:00 am-9:36 pm

2 stops22h 36m

Chicago Midway

Thu 10/2

10:35 am-12:10 pm

2 stops17h 35m

$658

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Thu 8/28

1:45 pm-2:10 pm

1 stop32h 25m

Chicago O'Hare Intl

Fri 9/12

4:15 pm-3:25 pm

1 stop15h 10m

$665

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sat 8/30

9:25 pm-4:10 pm

1 stop26h 45m

Chicago O'Hare Intl

Sat 9/13

7:25 am-8:35 pm

2 stops29h 10m

$673

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 23 results
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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 July 25, 2025.

Booking 86 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, August is the cheapest month in which you can book a flight from Bucharest to Chicago (average of $245). Flying from Bucharest to Chicago 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 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 July 31, 2025.

A simple way to save on the total cost of your ticket is to fly from Bucharest to Chicago in the afternoon. If you’re flexible enough to do this you can expect to save up to 13% 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 50% 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 July 31, 2025.
Get a feel of what it's like to fly with Emirates, Delta, and KLM 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.
Emirates
8.1
Very good
3,300 reviews

Food

7.9

Entertainment

8.2

Boarding

8.1

Overall

8.1

Crew

8.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.
Emirates
8.1
Very good
3,300 reviews
Emirates
8.1
Very good
3,300 reviews

Food

7.9

Entertainment

8.2

Boarding

8.1

Overall

8.1

Crew

8.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.
Delta
8.0
Very good
7,981 reviews
Emirates
8.1
Very good
3,300 reviews

Food

7.9

Entertainment

8.2

Boarding

8.1

Overall

8.1

Crew

8.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.
KLM
7.8
Good
1,383 reviews
Emirates
8.1
Very good
3,300 reviews

Food

7.9

Entertainment

8.2

Boarding

8.1

Overall

8.1

Crew

8.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.
LOT
7.6
Good
1,105 reviews
Emirates
8.1
Very good
3,300 reviews

Food

7.9

Entertainment

8.2

Boarding

8.1

Overall

8.1

Crew

8.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.
Austrian Airlines
7.6
Good
823 reviews
Emirates
8.1
Very good
3,300 reviews

Food

7.9

Entertainment

8.2

Boarding

8.1

Overall

8.1

Crew

8.3

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.

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.

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

    American Airlines, at $649, was found to be the cheapest airline from Bucharest to Chicago.Alternate airlines to your destination round-trip include Delta and Lufthansa. These flights start at 8% 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 Scandinavian Airlines, with whom users have recently found tickets for as low as $575. However, be on the lookout for offers from Lufthansa and Air Serbia, as they are both options that can get you from Bucharest to Chicago for a low price.

  • 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, August is the cheapest month in which you can book a flight from Bucharest to Chicago (average of $245). Flying from Bucharest to Chicago 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?

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

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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
Otopeni Intl to St. Louis flights
Iaşi to O'Hare Intl flights
Cluj Napoca 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 July 31, 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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