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O'Hare Intl

$412+ 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 4/19. Fares are subject to change and may not be available on all flights or dates of travel.
OTP — ORD
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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1. Tell us where you want to go
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Cheapflights Tip: The best prices from Bucharest Otopeni Intl to Chicago O'Hare Intl are usually found in November or February, booked 90 days in advance, depart on a Tuesday or Sunday and return on a Tuesday

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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$592
(KLM)

One-way from

$444
(Air Serbia)

Popular in

July

Cheapest in

November

Average price

$634
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. 12% potential increase in price ($100 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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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 March 28, 2025.

This KLM deal was found by Cheapflights users on 3/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/217:00 amOTP - ORD
1 stop15h 10mMultiple Airlines
Tue 5/65:10 pmORD - OTP
1 stop14h 40mMultiple Airlines
Deal found 3/27$592
This Delta deal was found by Cheapflights users on 3/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/67:00 amOTP - ORD
1 stop15h 10mDelta
Sat 5/171:45 pmORD - OTP
2 stops19h 35mDelta
Deal found 3/28$598
This Scandinavian Airlines deal was found by Cheapflights users on 3/27. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/188:50 pmOTP - ORD
1 stop27h 20mScandinavian Airlines
Thu 9/187:15 pmORD - OTP
1 stop17h 55mScandinavian Airlines
Deal found 3/27$600
This British Airways deal was found by Cheapflights users on 3/28. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/268:25 amOTP - ORD
2 stops19h 48mBritish Airways
Fri 10/109:15 pmORD - OTP
1 stop18h 35mBritish Airways
Deal found 3/28$601
This American Airlines deal was found by Cheapflights users on 3/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/168:25 amOTP - ORD
2 stops20h 59mAmerican Airlines
Tue 9/164:55 pmORD - OTP
1 stop24h 30mAmerican Airlines
Deal found 3/27$605
This Air France deal was found by Cheapflights users on 3/28. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/246:30 amOTP - ORD
2 stops15h 40mAir France
Mon 5/55:10 pmORD - OTP
1 stop22h 45mAir France
Deal found 3/28$610
This oojo deal was found by Cheapflights users on 3/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/162:35 pmOTP - ORD
1 stop13h 05mLOT
Tue 9/169:40 pmORD - OTP
1 stop12h 05mLOT
Deal found 3/27$624
This United Airlines deal was found by Cheapflights users on 3/28. 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 9/266:00 amOTP - ORD
2 stops16h 50mUnited Airlines
Fri 10/103:45 pmORD - OTP
2 stops18h 10mUnited Airlines
Deal found 3/28$659
This KLM deal was found by Cheapflights users on 3/28. 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.
Wed 6/116:05 pmOTP - ORD
1 stop28h 05mKLM
Wed 9/34:50 pmORD - OTP
1 stop14h 35mKLM
Deal found 3/28$678
This Air Canada deal was found by Cheapflights users on 3/27. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/136:00 amOTP - ORD
2 stops37h 24mAir Canada
Mon 9/153:40 pmORD - OTP
2 stops37h 20mAir Canada
Deal found 3/27$698
This FlightHub deal was found by Cheapflights users on 3/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/13:55 pmOTP - ORD
1 stop25h 45mTurkish Airlines
Thu 7/3111:25 amORD - OTP
1 stop25h 00mTurkish Airlines
Deal found 3/26$768
This Austrian Airlines deal was found by Cheapflights users on 3/27. 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.
Mon 4/216:35 amOTP - ORD
1 stop14h 45mAustrian Airlines
Tue 5/66:05 pmORD - OTP
2 stops16h 00mAustrian Airlines
Deal found 3/27$824

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 March 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

Mon 4/21

7:00 am-2:10 pm

1 stop15h 10m

Chicago O'Hare Intl

Tue 5/6

5:10 pm-3:50 pm

1 stop14h 40m

$592

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Tue 5/6

7:00 am-2:10 pm

1 stop15h 10m

Chicago O'Hare Intl

Sat 5/17

1:45 pm-5:20 pm

2 stops19h 35m

$598

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Wed 6/18

8:50 pm-4:10 pm

1 stop27h 20m

Chicago O'Hare Intl

Thu 9/18

7:15 pm-9:10 pm

1 stop17h 55m

$600

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Mon 6/16

8:25 am-9:24 pm

2 stops20h 59m

Chicago O'Hare Intl

Tue 9/16

4:55 pm-1:25 am

1 stop24h 30m

$605

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Thu 4/24

6:30 am-2:10 pm

2 stops15h 40m

Chicago O'Hare Intl

Mon 5/5

5:10 pm-11:55 pm

1 stop22h 45m

$610

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Mon 6/16

2:35 pm-7:40 pm

1 stop13h 05m

Chicago O'Hare Intl

Tue 9/16

9:40 pm-5:45 pm

1 stop12h 05m

$624

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sat 6/14

8:05 pm-11:55 am

1 stop23h 50m

Chicago O'Hare Intl

Sat 9/13

11:30 am-12:30 am

2 stops29h 00m

$628

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Wed 6/11

6:05 pm-2:10 pm

1 stop28h 05m

Chicago O'Hare Intl

Wed 9/3

4:50 pm-3:25 pm

1 stop14h 35m

$678

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Wed 6/11

6:05 am-6:15 pm

1 stop20h 10m

Chicago O'Hare Intl

Wed 9/3

2:08 pm-11:30 pm

2 stops25h 22m

$682

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Fri 6/13

6:00 am-11:24 am

2 stops37h 24m

Chicago O'Hare Intl

Mon 9/15

3:40 pm-1:00 pm

2 stops37h 20m

$698

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/28

Showing 1-10 of 27 results
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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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
oojoPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Bucharest Otopeni Intl Airport-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >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 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 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 March 21, 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, August is the cheapest month in which you can book a flight from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport (average of $245). Flying from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $323). 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 March 28, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 18% on flights from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport by exploring options for tickets in the afternoon.

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 March 28, 2025.
See what other customers who have flown with Emirates, Delta and KLM from Bucharest to Chicago have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.0
Very good
3,190 reviews

Overall

8.0

Boarding

8.1

Food

7.8

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Emirates
8.0
Very good
3,190 reviews
Emirates
8.0
Very good
3,190 reviews

Overall

8.0

Boarding

8.1

Food

7.8

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Delta
8.0
Very good
7,898 reviews
Emirates
8.0
Very good
3,190 reviews

Overall

8.0

Boarding

8.1

Food

7.8

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
KLM
7.8
Good
1,321 reviews
Emirates
8.0
Very good
3,190 reviews

Overall

8.0

Boarding

8.1

Food

7.8

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
LOT
7.6
Good
1,063 reviews
Emirates
8.0
Very good
3,190 reviews

Overall

8.0

Boarding

8.1

Food

7.8

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Austrian Airlines
7.5
Good
769 reviews
Emirates
8.0
Very good
3,190 reviews

Overall

8.0

Boarding

8.1

Food

7.8

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

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.

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

    Delta, at $598, 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 Scandinavian Airlines and American Airlines. You may be able to fly from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport for 14% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport one-way?

    To fly one-way, consider booking your trip with Air Serbia, which is currently one of the cheapest options available, starting at $444. Scandinavian Airlines flights start at $499 while deals on Delta start at $639 one-way.

  • 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, August is the cheapest month in which you can book a flight from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport (average of $245). Flying from Bucharest Otopeni Intl Airport to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $323). 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 Bucharest Otopeni Intl Airport?

Book flights to Bucharest Otopeni Intl Airport if you plan to visit one of these locations
Rosemont
Beloit
Naperville
Schaumburg
Racine
Hoffman Estates
Rockford
Tinley Park
Skokie
Kenosha
Arlington Heights
Joliet
Orland Park
Merrillville
Northbrook
Evanston
New Buffalo
Elgin
Glenview
Lake Geneva

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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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$336Average$671FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$548Average$642FlexibilityNo cancel feeOn-time71%
KLMCheapest$570Average$697FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$580Average$707FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$581Average$654FlexibilityNo cancel feeOn-time77%
LOTCheapest$582Average$684FlexibilityNo cancel feeOn-time81%
DeltaCheapest$585Average$634FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$593Average$809FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$594Average$821FlexibilityNo cancel feeOn-time69%
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