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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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
BUH — ORD
Aug 27 — Sep 31
Thu 8/27
Thu 9/3
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 July 28, 2026.

This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/275:35 am
OTP
-
ORD
1 stop22h 15m
LOT
Thu 9/249:50 pm
ORD
-
OTP
1 stop17h 25m
LOT
Deal found 7/28$774
This Austrian Airlines deal was found by Cheapflights users on 7/27. 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.
Sat 9/51:15 pm
OTP
-
ORD
2 stops35h 44m
Austrian Airlines
Mon 11/93:45 pm
ORD
-
OTP
2 stops18h 40m
Austrian Airlines
Deal found 7/27$786
This Travelocity deal was found by Cheapflights users on 7/27. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:20 am
OTP
-
ORD
1 stop14h 15m
Multiple Airlines
Sun 11/85:50 pm
ORD
-
OTP
2 stops22h 00m
Multiple Airlines
Deal found 7/27$788
This LOT deal was found by Cheapflights users on 7/27. 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 LOT is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/82:35 pm
OTP
-
ORD
2 stops56h 30m
LOT
Thu 11/59:50 pm
ORD
-
OTP
1 stop11h 50m
LOT
Deal found 7/27$791
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/168:25 am
OTP
-
ORD
2 stops19h 47m
Multiple Airlines
Tue 1/129:50 pm
ORD
-
OTP
1 stop18h 15m
Multiple Airlines
Deal found 7/28$792
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Sun 9/62:35 pm
OTP
-
ORD
1 stop13h 15m
LOT
Fri 11/69:50 pm
ORD
-
OTP
1 stop11h 50m
LOT
Deal found 7/27$794
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Sun 9/62:35 pm
OTP
-
ORD
1 stop13h 15m
LOT
Thu 11/129:50 pm
ORD
-
OTP
1 stop11h 50m
LOT
Deal found 7/27$795
This Mytrip deal was found by Cheapflights users on 7/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:00 am
OTP
-
ORD
2 stops19h 20m
Multiple Airlines
Tue 11/106:50 pm
ORD
-
OTP
1 stop13h 00m
Multiple Airlines
Deal found 7/25$797
This Kiwi.com deal was found by Cheapflights users on 7/25. 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.
Thu 10/296:00 am
OTP
-
ORD
2 stops19h 20m
Multiple Airlines
Sat 1/27:40 pm
ORD
-
OTP
1 stop23h 30m
Multiple Airlines
Deal found 7/25$798
This SWISS deal was found by Cheapflights users on 7/24. 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.
Tue 9/86:20 am
OTP
-
ORD
2 stops19h 45m
SWISS
Sun 11/16:50 pm
ORD
-
OTP
1 stop21h 40m
SWISS
Deal found 7/24$799

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 July 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$786
(Austrian Airlines)

One-way from

$378
(Kiwi.com)

Popular in

May

Cheapest in

February

Average price

$809

Good round-trip deal

$868 or less
Provider with most accurate pricing for Bucharest (BUH)-Chicago O'Hare Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bucharest (BUH)-Chicago O'Hare Intl flights.
Search Deals
From Bucharest (BUH) to Chicago O'Hare Intl
Search Deals
One-way flight from Bucharest (BUH) to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($195 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Bucharest (BUH) to Chicago O'Hare Intl.
Search Deals

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 28, 2026.
Use the filters below to find and compare flights from Bucharest to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Tue 9/8

1:50 pm-12:35 pm

2 stops30h 45m

Chicago O'Hare Intl

Tue 11/10

6:15 am-12:30 pm

2 stops22h 15m

$793

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Tue 9/8

1:50 pm-12:35 pm

2 stops30h 45m

Chicago O'Hare Intl

Sun 11/8

7:00 am-12:30 pm

2 stops21h 30m

$793

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Mon 9/28

6:05 am-5:20 pm

2 stops19h 15m

Chicago O'Hare Intl

Wed 10/21

9:40 pm-6:35 pm

1 stop12h 55m

$814

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sat 9/5

1:55 pm-10:56 am

2 stops29h 01m

Chicago O'Hare Intl

Sat 11/7

4:20 pm-12:30 pm

1 stop12h 10m

$818

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sat 9/5

6:05 am-11:40 pm

2 stops25h 35m

Chicago O'Hare Intl

Fri 11/6

4:20 pm-12:30 pm

1 stop12h 10m

$818

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Tue 9/8

7:05 am-2:15 pm

1 stop15h 10m

Chicago O'Hare Intl

Sun 11/8

6:25 pm-8:10 pm

1 stop17h 45m

$820

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Tue 8/25

6:05 am-12:59 am

2 stops26h 54m

Chicago O'Hare Intl

Thu 9/3

6:30 pm-11:20 pm

1 stop20h 50m

$822

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Mon 9/28

7:05 am-7:33 pm

2 stops20h 28m

Chicago O'Hare Intl

Wed 10/21

1:50 pm-1:00 pm

2 stops15h 10m

$826

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Tue 9/29

7:05 am-4:13 pm

2 stops17h 08m

Chicago O'Hare Intl

Wed 10/21

1:55 pm-5:20 pm

2 stops19h 25m

$826

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Tue 11/17

6:00 am-5:20 pm

2 stops19h 20m

Chicago O'Hare Intl

Thu 12/10

4:25 pm-1:00 pm

1 stop12h 35m

$826

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3
  • Most accurate provider: When it comes to deals on Bucharest-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bucharest-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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, February is the cheapest month in which you can book a flight from Bucharest to Chicago O'Hare Intl Airport (average of $657). Flying from Bucharest to Chicago O'Hare Intl Airport in August is currently the most expensive (average of $954). 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.

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

Airfare is below average for this route at the moment.
Bucharest to Chicago O'Hare Intl Airport flights typically cost between $954 and $1,277 in September.
The cheapest round-trip price found within the last 5 days was $786 on Austrian Airlines (Sep 5-Nov 9).

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 36% 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.

Zurich (ZRH) is the most affordable 1-stop option, with an average round-trip price of $606.

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 Munich (MUC) 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 Munich (MUC) offer the fastest connection on this route, with an average layover time of 1h 35m.

How far ahead should I book a flight from Bucharest to Chicago O'Hare Intl Airport?

To ensure you get the cheapest price possible for a flight from Bucharest to Chicago O'Hare Intl Airport, you should look to book at least 15 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 28, 2026.
Read through reviews of airlines operating flights from Bucharest to Chicago O'Hare Intl Airport, such as LOT,Turkish Airlines, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
LOT
7.5
Good
1,215 reviews

Comfort

7.5

Overall

7.5

Crew

8.2

Entertainment

6.9

Boarding

7.5

Food

7.2

Reviews

1 / 20
10.0
Excellent

Patrycja,May 2026

KRK - ORD

The whole flight was great. Crew was friendly and helpful.
LOT
7.5
Good
1,215 reviews
LOT
7.5
Good
1,215 reviews

Comfort

7.5

Overall

7.5

Crew

8.2

Entertainment

6.9

Boarding

7.5

Food

7.2

Reviews

1 / 20
10.0
Excellent

Patrycja,May 2026

KRK - ORD

The whole flight was great. Crew was friendly and helpful.
Turkish Airlines
7.4
Good
4,455 reviews
LOT
7.5
Good
1,215 reviews

Comfort

7.5

Overall

7.5

Crew

8.2

Entertainment

6.9

Boarding

7.5

Food

7.2

Reviews

1 / 20
10.0
Excellent

Patrycja,May 2026

KRK - ORD

The whole flight was great. Crew was friendly and helpful.
United Airlines
7.4
Good
10,049 reviews
LOT
7.5
Good
1,215 reviews

Comfort

7.5

Overall

7.5

Crew

8.2

Entertainment

6.9

Boarding

7.5

Food

7.2

Reviews

1 / 20
10.0
Excellent

Patrycja,May 2026

KRK - ORD

The whole flight was great. Crew was friendly and helpful.
Lufthansa
6.8
Okay
8,163 reviews
LOT
7.5
Good
1,215 reviews

Comfort

7.5

Overall

7.5

Crew

8.2

Entertainment

6.9

Boarding

7.5

Food

7.2

Reviews

1 / 20
10.0
Excellent

Patrycja,May 2026

KRK - ORD

The whole flight was great. Crew was friendly and helpful.

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 30h 45m. Fly via United 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?

    HiSky, at $426, was found to be the cheapest airline from Bucharest to Chicago O'Hare Intl Airport.Alternate airlines to your destination round-trip include Lufthansa and Turkish Airlines. HiSky is priced at 48% 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?

    $396 is the cheapest one-way deal found within the past few days, from HiSky. You may also be able to find cheap deals on Air Serbia and British Airways, with prices starting from $419 and $479, 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 $868. On average you can expect to pay $869. The most popular route, (Bucharest Otopeni Intl - Chicago O'Hare Intl), can usually be booked for $564.

  • 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, February is the cheapest month in which you can book a flight from Bucharest to Chicago O'Hare Intl Airport (average of $657). Flying from Bucharest to Chicago O'Hare Intl Airport in August is currently the most expensive (average of $954). 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
Benton Harbor
Rosemont
Schaumburg
Naperville
Lake Geneva
Oak Brook
Delavan
Oakbrook Terrace
Gurnee
South Holland
Libertyville
Orland Park
Hoffman Estates
Beloit
Downers Grove
Rockford
Aurora
Racine
Great Lakes
Janesville

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

Top 7 airlines flying from Bucharest to O'Hare Intl

Discover the top 7 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 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
HiSkyCheapest$426Average$862FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$603Average$821FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$608Average$735FlexibilityNo cancel feeOn-time77%
LOTCheapest$620Average$779FlexibilityNo cancel feeOn-time81%
Air FranceCheapest$654Average$812FlexibilityNo cancel feeOn-time77%
KLMCheapest$657Average$838FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$660Average$821FlexibilityNo cancel feeOn-time70%

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