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Otopeni Intl

$315+ Cheap flights from Chicago (CHI) to Otopeni Intl (OTP)

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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — OTP
May 12 — May 191
Mon 5/12
Mon 5/19
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Bucharest Otopeni Intl are usually found in January or October, booked 50 days in advance, depart on a Tuesday or Thursday and return on a Tuesday

Cheap flight deals from Chicago to Otopeni Intl

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Otopeni Intl (OTP). 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 May 7, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$639
(United Airlines)

One-way from

$393
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$939
Provider with most accurate pricing for Chicago (CHI)-Bucharest Otopeni Intl flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Bucharest Otopeni Intl flights.
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From Chicago (CHI) to Bucharest Otopeni Intl
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One-way flight from Chicago (CHI) to Bucharest Otopeni Intl
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Highest demand for flights based on searches. 25% potential increase in price ($257 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find flight deals from Chicago to Otopeni Intl

Cheapest flights from Chicago to Otopeni Intl
Explore the most affordable flight options available from Chicago to Otopeni Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 7, 2025.

This United Airlines deal was found by Cheapflights users on 5/6. 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 8/11:05 pmORD - OTP
2 stops20h 50mUnited Airlines
Sat 8/236:00 amOTP - ORD
2 stops25h 15mUnited Airlines
Deal found 5/6$639
This Gotogate deal was found by Cheapflights users on 5/6. 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.
Sat 8/237:05 pmORD - OTP
1 stop22h 00mMultiple Airlines
Fri 9/56:00 amOTP - ORD
2 stops21h 29mMultiple Airlines
Deal found 5/6$649
This Scandinavian Airlines deal was found by Cheapflights users on 5/6. 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.
Tue 8/127:00 amORD - OTP
2 stops29h 15mScandinavian Airlines
Fri 8/299:50 pmOTP - ORD
2 stops47h 03mScandinavian Airlines
Deal found 5/6$650
This oojo deal was found by Cheapflights users on 5/6. 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.
Sun 8/175:10 pmORD - OTP
2 stops22h 00mLOT
Sun 9/148:20 amOTP - ORD
1 stop14h 50mLOT
Deal found 5/6$652
This Turkish Airlines deal was found by Cheapflights users on 5/7. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/711:25 amORD - OTP
1 stop12h 45mTurkish Airlines
Tue 9/99:45 pmOTP - ORD
1 stop19h 55mTurkish Airlines
Deal found 5/7$653
This Cheapflightsfares deal was found by Cheapflights users on 5/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/99:40 pmORD - OTP
2 stops18h 00mLufthansa
Fri 11/76:00 amOTP - ORD
2 stops15h 25mLufthansa
Deal found 5/7$662
This Air Canada deal was found by Cheapflights users on 5/6. 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.
Tue 8/127:15 amORD - OTP
2 stops24h 05mAir Canada
Thu 8/286:00 amOTP - ORD
2 stops22h 16mAir Canada
Deal found 5/6$671
This SWISS deal was found by Cheapflights users on 5/7. 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.
Thu 8/77:05 pmORD - OTP
1 stop12h 15mSWISS
Thu 9/116:30 amOTP - ORD
1 stop17h 25mSWISS
Deal found 5/7$678
This Delta deal was found by Cheapflights users on 5/7. 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.
Wed 8/1310:35 amORD - OTP
2 stops17h 35mDelta
Fri 9/126:30 amOTP - ORD
1 stop16h 30mDelta
Deal found 5/7$692
This Air Serbia deal was found by Cheapflights users on 5/6. 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 Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3011:20 pmORD - OTP
1 stop32h 00mAir Serbia
Tue 9/24:05 pmOTP - ORD
1 stop30h 20mAir Serbia
Deal found 5/6$709
This Delta deal was found by Cheapflights users on 5/7. 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 7/151:09 pmMDW - OTP
2 stops20h 11mDelta
Thu 8/216:30 amOTP - MDW
2 stops19h 33mDelta
Deal found 5/7$733
This Austrian Airlines deal was found by Cheapflights users on 5/6. 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.
Wed 8/2712:50 pmORD - OTP
2 stops27h 20mAustrian Airlines
Sun 8/316:55 pmOTP - ORD
1 stop26h 25mAustrian Airlines
Deal found 5/6$754

Cheapflights Fare Finder

Customize your flight search to find flights from Chicago to Otopeni 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 May 7, 2025.
Use the filters below to find and compare flights from Chicago to Bucharest Otopeni Intl Airport that are best for you.

Fly from

Chicago

Fly to

Otopeni Intl

Route

Depart

Return

Price

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Fri 8/1

1:05 pm-5:55 pm

2 stops20h 50m

Bucharest Otopeni Intl

Sat 8/23

6:00 am-11:15 pm

2 stops25h 15m

$639

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sat 8/23

7:05 pm-1:05 am

1 stop22h 00m

Bucharest Otopeni Intl

Fri 9/5

6:00 am-7:29 pm

2 stops21h 29m

$649

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Tue 8/12

7:00 am-8:15 pm

2 stops29h 15m

Bucharest Otopeni Intl

Fri 8/29

9:50 pm-12:53 pm

2 stops47h 03m

$650

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 8/17

5:10 pm-11:10 pm

2 stops22h 00m

Bucharest Otopeni Intl

Sun 10/19

8:20 am-3:10 pm

1 stop14h 50m

$652

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 8/7

11:25 am-8:10 am

1 stop12h 45m

Bucharest Otopeni Intl

Tue 9/9

9:45 pm-9:40 am

1 stop19h 55m

$653

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Tue 8/12

7:15 am-3:20 pm

2 stops24h 05m

Bucharest Otopeni Intl

Thu 8/28

6:00 am-8:16 pm

2 stops22h 16m

$671

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 8/7

7:05 pm-3:20 pm

1 stop12h 15m

Bucharest Otopeni Intl

Tue 9/2

6:30 am-12:10 pm

1 stop13h 40m

$678

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Fri 8/8

4:00 pm-5:55 pm

1 stop17h 55m

Bucharest Otopeni Intl

Fri 9/12

6:05 am-6:15 pm

1 stop20h 10m

$688

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 8/13

10:35 am-12:10 pm

2 stops17h 35m

Bucharest Otopeni Intl

Tue 9/9

6:30 am-3:00 pm

1 stop16h 30m

$692

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sat 8/30

11:20 pm-3:20 pm

1 stop32h 00m

Bucharest Otopeni Intl

Tue 9/2

4:05 pm-2:25 pm

1 stop30h 20m

$709

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/6

Showing 1-10 of 29 results
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Compare providers for flights from Chicago to Otopeni 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 Chicago to Otopeni Intl in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 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 Chicago-Bucharest Otopeni Intl Airport flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Chicago-Bucharest Otopeni Intl Airport flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Chicago-Bucharest Otopeni Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Bucharest Otopeni Intl Airport flights, Cheapflights users trust AranGrant the most. AranGrant 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 Chicago-Bucharest Otopeni 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 Chicago to Otopeni Intl

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

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

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Otopeni Intl. Price data was last updated on May 2, 2025.

The price you pay for your flight from Chicago to Bucharest Otopeni Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 50 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, November is the cheapest month in which you can book a flight from Chicago to Bucharest Otopeni Intl Airport (average of $604). Flying from Chicago to Bucharest Otopeni Intl Airport in June is currently the most expensive (average of $1,158). 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 CHI to OTP?

Find hourly flight availability from Chicago to Otopeni Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 7, 2025.

It’s typically best to fly out from Chicago to Bucharest Otopeni Intl Airport in the morning. Doing so could potentially save you 33% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Chicago to Bucharest Otopeni Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Chicago to Otopeni Intl. Price data was last updated on June 30, 2024.

Travelers seeking maximum savings on their Chicago to Bucharest Otopeni Intl Airport flight should consider departing on Wednesday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Otopeni Intl by month

Plan your trip to Otopeni Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bucharest Otopeni Intl Airport ranges from 0.8 - 3.1 inches per month. June is typically the wettest month, when rainfall can reach 3.1 in. October is typically the driest time to visit Bucharest Otopeni Intl Airport when rainfall is around 0.8 in.

Temperature in Otopeni Intl by month

Plan your trip to Otopeni Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bucharest Otopeni 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 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Otopeni Intl

Get insights into the airlines that provide service to Otopeni 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 Otopeni Intl. Reviews last updated May 7, 2025.
To help decide which airline to fly from Chicago to Bucharest, see what other customers have to say about Delta, KLM and LOT. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,944 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,944 reviews
Delta
8.0
Very good
7,944 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,338 reviews
Delta
8.0
Very good
7,944 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
LOT
7.6
Good
1,071 reviews
Delta
8.0
Very good
7,944 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
781 reviews
Delta
8.0
Very good
7,944 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,449 reviews
Delta
8.0
Very good
7,944 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Chicago to Otopeni 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 Chicago to Bucharest Otopeni Intl Airport round-trip?

    Flying on United Airlines is currently your cheapest option to Bucharest Otopeni Intl Airport, with prices starting at $639. Additional round-trip tickets that might be worth considering are offered by Scandinavian Airlines and SWISS, with the lowest prices starting at $651 and $678, respectively. You may be able to fly from Chicago to Bucharest Otopeni Intl Airport for 16% less than the average price by searching for these airlines.

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

    One-way options have recently been found by users for as low as $404 on Scandinavian Airlines. Other airlines that offer cheap prices include SWISS from $447 and Delta from $451 one-way.

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

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

  • How can I find direct flights from Chicago to Otopeni Intl?

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

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

    Yes. Cheapflights offers flight deals from Chicago to Otopeni 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 Chicago to Bucharest Otopeni Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from Chicago to Bucharest Otopeni Intl Airport (average of $604). Flying from Chicago to Bucharest Otopeni Intl Airport in June is currently the most expensive (average of $1,158). 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

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Alternative routes for Chicago to Otopeni Intl

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Otopeni Intl flights
Midway to Otopeni Intl flights
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Top 10 airlines flying from Chicago to Otopeni Intl

Discover the top 10 airlines that operate flights from Chicago to Otopeni 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 May 7, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$366Average$759FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$509Average$600FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$517Average$794FlexibilityNo cancel feeOn-time78%
LOTCheapest$532Average$947FlexibilityNo cancel feeOn-time81%
British AirwaysCheapest$544Average$724FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$548Average$981FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$585Average$931FlexibilityNo cancel feeOn-time69%
SWISSCheapest$597Average$891FlexibilityNo cancel feeOn-time79%
Air SerbiaCheapest$655Average$1,017FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$674Average$833FlexibilityNo cancel feeOn-time77%

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