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O'Hare Intl

$423+ Cheap flights from Otopeni Intl (OTP) 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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
OTP — ORD
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Find cheap flights from Otopeni Intl to O'Hare Intl 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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3. Compare prices and book

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Cheapflights Tip: The best prices from Bucharest Otopeni Intl to Chicago O'Hare Intl are usually found in September or March, booked 90 days in advance, depart on a Tuesday or Sunday and return on a Monday

Find flight deals from Otopeni Intl to O'Hare Intl

Cheapest flights from Otopeni Intl to O'Hare Intl
Explore the most affordable flight options available from Otopeni Intl to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This Mytrip deal was found by Cheapflights users on 10/27. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/124:30 amOTP - ORD
3 stops20h 50mMultiple Airlines
Fri 11/286:30 pmORD - OTP
3 stops22h 00mMultiple Airlines
Deal found 10/27$662
This Gotogate deal was found by Cheapflights users on 10/26. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/135:50 amOTP - ORD
1 stop15h 20mLufthansa
Wed 11/264:20 pmORD - OTP
1 stop13h 40mLufthansa
Deal found 10/26$664
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/135:50 amOTP - ORD
1 stop15h 20mUnited Airlines
Fri 11/289:50 pmORD - OTP
1 stop12h 45mUnited Airlines
Deal found 10/28$670
This Air Canada deal was found by Cheapflights users on 10/28. 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 11/215:55 amOTP - ORD
2 stops17h 00mAir Canada
Wed 1/2810:35 amORD - OTP
2 stops21h 15mAir Canada
Deal found 10/28$671
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/215:55 amOTP - ORD
1 stop22h 10mUnited Airlines
Fri 1/304:20 pmORD - OTP
1 stop13h 50mUnited Airlines
Deal found 10/28$672
This United Airlines deal was found by Cheapflights users on 10/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/25:55 amOTP - ORD
2 stops17h 00mUnited Airlines
Fri 4/249:40 pmORD - OTP
1 stop19h 20mUnited Airlines
Deal found 10/27$674
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/215:55 amOTP - ORD
1 stop22h 10mUnited Airlines
Sat 11/294:20 pmORD - OTP
1 stop12h 10mUnited Airlines
Deal found 10/28$675
This United Airlines deal was found by Cheapflights users on 10/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/135:50 amOTP - ORD
2 stops17h 05mUnited Airlines
Wed 11/266:25 pmORD - OTP
1 stop16h 15mUnited Airlines
Deal found 10/27$676
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/205:50 amOTP - ORD
2 stops17h 05mUnited Airlines
Thu 12/46:15 pmORD - OTP
2 stops21h 35mUnited Airlines
Deal found 10/28$677
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/215:55 amOTP - ORD
2 stops18h 55mUnited Airlines
Mon 1/268:52 amORD - OTP
2 stops21h 13mUnited Airlines
Deal found 10/28$679

Cheap flight deals from Otopeni Intl to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Otopeni Intl (OTP) 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 October 28, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$662
(Mytrip)

One-way from

$423
(Kiwi.com)

Popular in

August

Cheapest in

September

Average price

$783
Provider with most accurate pricing for Bucharest Otopeni Intl-Chicago O'Hare Intl flight deals.
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Provider most trusted by Cheapflights users for Bucharest Otopeni Intl-Chicago O'Hare Intl flights.
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From Bucharest Otopeni Intl to Chicago O'Hare Intl
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One-way flight from Bucharest Otopeni Intl to Chicago O'Hare Intl
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Highest demand for flights based on searches. 2% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Otopeni Intl 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 October 28, 2025.
Use the filters below to find and compare flights from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport that are best for you.

Fly from

Otopeni Intl

Fly to

O'Hare Intl

Route

Depart

Return

Price

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Thu 11/13

2:45 pm-8:05 pm

1 stop13h 20m

Chicago O'Hare Intl

Fri 11/28

9:50 pm-6:35 pm

1 stop12h 45m

$662

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Thu 11/13

5:50 am-3:20 pm

1 stop17h 30m

Chicago O'Hare Intl

Fri 11/28

3:07 pm-2:10 pm

2 stops15h 03m

$672

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Tue 12/2

5:55 am-11:10 am

1 stop13h 15m

Chicago O'Hare Intl

Fri 4/24

9:40 pm-1:00 am

1 stop19h 20m

$674

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Fri 11/21

5:55 am-3:20 pm

1 stop17h 25m

Chicago O'Hare Intl

Sat 11/29

4:20 pm-2:05 pm

1 stop13h 45m

$675

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Thu 11/13

5:50 am-2:55 pm

2 stops17h 05m

Chicago O'Hare Intl

Wed 11/26

10:35 pm-11:55 pm

1 stop17h 20m

$676

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Tue 11/25

5:55 am-2:55 pm

2 stops17h 00m

Chicago O'Hare Intl

Tue 12/2

4:20 pm-1:55 pm

1 stop13h 35m

$676

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sun 4/26

10:50 am-5:50 pm

2 stops39h 00m

$423

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sun 4/26

8:20 am-6:15 pm

1 stop17h 55m

$424

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Tue 11/11

6:55 pm-9:47 am

3 stops46h 52m

$520

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Tue 11/4

5:45 pm-3:00 pm

2 stops29h 15m

$525

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 13 results
1
2

Compare providers for flights from Otopeni Intl 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 Otopeni Intl to O'Hare Intl in October.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 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 Otopeni Intl Airport-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 Otopeni Intl Airport-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 Otopeni Intl Airport-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 Otopeni Intl Airport-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 Otopeni Intl Airport-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 Otopeni Intl to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Otopeni Intl 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 Otopeni Intl Airport to Chicago O'Hare Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Otopeni Intl to O'Hare Intl. Price data was last updated on October 24, 2025.

Booking 90 days in advance of your planned departure date is, on average, the best time to get cheap flights from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport. 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 Otopeni Intl Airport to Chicago O'Hare Intl Airport?

Currently, July is the cheapest month in which you can book a flight from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport (average of $353). Flying from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport in January is currently the most expensive (average of $611). 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 OTP to ORD?

Find hourly flight availability from Otopeni Intl 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 October 28, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 36% on flights from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport by exploring options for tickets in the afternoon.

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 October 28, 2025.
Read through reviews of airlines operating flights from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport, such as KLM, LOT, and Turkish Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,406 reviews

Boarding

7.8

Crew

8.4

Overall

7.7

Comfort

7.7

Food

7.3

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,406 reviews
KLM
7.7
Good
1,406 reviews

Boarding

7.8

Crew

8.4

Overall

7.7

Comfort

7.7

Food

7.3

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
LOT
7.6
Good
1,136 reviews
KLM
7.7
Good
1,406 reviews

Boarding

7.8

Crew

8.4

Overall

7.7

Comfort

7.7

Food

7.3

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Turkish Airlines
7.3
Good
4,031 reviews
KLM
7.7
Good
1,406 reviews

Boarding

7.8

Crew

8.4

Overall

7.7

Comfort

7.7

Food

7.3

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Lufthansa
6.8
Okay
7,535 reviews
KLM
7.7
Good
1,406 reviews

Boarding

7.8

Crew

8.4

Overall

7.7

Comfort

7.7

Food

7.3

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
British Airways
6.7
Okay
7,483 reviews
KLM
7.7
Good
1,406 reviews

Boarding

7.8

Crew

8.4

Overall

7.7

Comfort

7.7

Food

7.3

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

Related info for your journey

Find useful and relevant information for your journey from Otopeni Intl 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 Otopeni Intl Airport to Chicago O'Hare Intl Airport?

    Departing from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport will take you 13h 20m. Airlines will cover a distance of 5198 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Turkish Airlines, at $493, was found to be the cheapest airline from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport.Alternate airlines to your destination round-trip include American Airlines and Lufthansa. You may be able to fly from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport for 29% less than the average price by searching for these airlines.

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

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

  • How can I find direct flights from Otopeni Intl 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 Otopeni Intl to O'Hare Intl.

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

    Yes. Cheapflights offers flight deals from Otopeni Intl 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 Otopeni Intl Airport to Chicago O'Hare Intl Airport?

    Currently, July is the cheapest month in which you can book a flight from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport (average of $353). Flying from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport in January is currently the most expensive (average of $611). 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
Skokie
Des Plaines
Gurnee
Hoffman Estates
Elgin
Oak Brook
Elk Grove Village
Beloit
Rockford
Naperville
Racine
Downers Grove
Orland Park
Merrillville
Bridgeview
Warrenville
Joliet
Waukegan

Browse thousands of different options on Cheapflights for your next trip

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Top 9 airlines flying from Otopeni Intl to O'Hare Intl

Discover the top 9 airlines that operate flights from Otopeni Intl 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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$493Average$768FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$548Average$595FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$565Average$821FlexibilityNo cancel feeOn-time76%
KLMCheapest$570Average$740FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$571Average$815FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$581Average$695FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$581Average$654FlexibilityNo cancel feeOn-time77%
LOTCheapest$583Average$656FlexibilityNo cancel feeOn-time81%
DeltaCheapest$623Average$634FlexibilityNo cancel feeOn-timeN/A

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