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Otopeni Intl

$364+ Cheap flights from Illinois 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OTP
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Illinois to Otopeni Intl

Keep the following information in mind while searching for Illinois to Otopeni Intl flight deals. Data was last updated July 31, 2025.

Round-trip from

$563
(CrystalTravel)

One-way from

$364
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,064
From Illinois to Bucharest Otopeni Intl
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One-way flight from Illinois to Bucharest Otopeni Intl
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Highest demand for flights based on searches. 27% potential increase in price ($296 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($32 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 Illinois to Otopeni Intl

Cheapest flights from Illinois to Otopeni Intl
Explore the most affordable flight options available from Illinois to Otopeni Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/14:20 pmORD - OTP
1 stop12h 10mMultiple Airlines
Mon 12/152:50 pmOTP - ORD
1 stop13h 15mMultiple Airlines
Deal found 7/31$564
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
Tue 9/307:50 pmORD - OTP
1 stop16h 30mTurkish Airlines
Tue 10/143:55 pmOTP - ORD
1 stop25h 45mTurkish Airlines
Deal found 7/29$565
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 8/242:05 pmORD - OTP
1 stop15h 45mLOT
Thu 9/42:35 pmOTP - ORD
1 stop13h 05mLOT
Deal found 7/29$568
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2510:38 amORD - OTP
2 stops21h 07mAir Canada
Sun 12/75:55 amOTP - ORD
2 stops17h 00mAir Canada
Deal found 7/28$583
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:00 pmORD - OTP
1 stop16h 30mUnited Airlines
Fri 11/215:55 amOTP - ORD
2 stops21h 35mUnited Airlines
Deal found 7/31$584
This Ovago deal was found by Cheapflights users on 7/29. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/261:10 pmORD - OTP
2 stops26h 15mBritish Airways
Fri 1/98:00 amOTP - ORD
2 stops19h 50mBritish Airways
Deal found 7/29$590
This Scandinavian Airlines deal was found by Cheapflights users on 7/29. 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.
Sun 10/57:15 pmORD - OTP
1 stop17h 55mScandinavian Airlines
Mon 10/139:50 pmOTP - ORD
2 stops31h 29mScandinavian Airlines
Deal found 7/29$609
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.
Thu 11/1310:35 amMDW - OTP
2 stops17h 30mDelta
Tue 12/26:05 amOTP - MDW
2 stops20h 31mDelta
Deal found 7/31$613
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/75:10 pmORD - OTP
1 stop22h 45mAir France
Sun 8/244:50 pmOTP - ORD
1 stop30h 10mAir France
Deal found 7/28$613
This Austrian 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/271:24 pmORD - OTP
2 stops35h 41mAustrian Airlines
Sat 1/106:35 pmOTP - ORD
2 stops31h 58mAustrian Airlines
Deal found 7/30$615
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/71:30 pmSTL - OTP
2 stops41h 50mAir Canada
Tue 9/236:00 amOTP - STL
2 stops21h 57mAir Canada
Deal found 7/30$670
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/71:30 pmSTL - OTP
2 stops19h 20mMultiple Airlines
Tue 9/236:40 pmOTP - STL
1 stop26h 50mMultiple Airlines
Deal found 7/30$699

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois 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 July 31, 2025.
Use the filters below to find and compare flights from Illinois to Bucharest Otopeni Intl Airport that are best for you.

Fly from

Illinois

Fly to

Otopeni Intl

Route

Depart

Return

Price

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 12/1

4:20 pm-12:30 pm

1 stop12h 10m

Bucharest Otopeni Intl

Mon 12/15

2:50 pm-8:05 pm

1 stop13h 15m

$564

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Tue 9/30

7:50 pm-8:20 pm

1 stop16h 30m

Bucharest Otopeni Intl

Tue 10/14

3:55 pm-9:40 am

1 stop25h 45m

$565

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 8/24

2:05 pm-1:50 pm

1 stop15h 45m

Bucharest Otopeni Intl

Thu 9/4

2:35 pm-7:40 pm

1 stop13h 05m

$568

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Fri 1/9

9:45 pm-11:25 pm

1 stop17h 40m

Bucharest Otopeni Intl

Fri 1/16

8:20 pm-1:50 pm

1 stop25h 30m

$576

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Tue 11/25

10:38 am-3:45 pm

2 stops21h 07m

Bucharest Otopeni Intl

Sun 12/7

5:55 am-2:55 pm

2 stops17h 00m

$583

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Fri 11/14

6:00 pm-6:30 pm

1 stop16h 30m

Bucharest Otopeni Intl

Fri 11/21

5:55 am-7:30 pm

2 stops21h 35m

$584

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 10/5

7:15 pm-9:10 pm

1 stop17h 55m

Bucharest Otopeni Intl

Mon 10/13

9:50 pm-9:19 pm

2 stops31h 29m

$609

ChicagoBucharest

MDW - OTP

MDWOTP

Chicago Midway

Thu 11/13

10:35 am-12:05 pm

2 stops17h 30m

Bucharest Otopeni Intl

Tue 12/2

6:05 am-6:36 pm

2 stops20h 31m

$613

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sat 12/27

1:24 pm-9:05 am

2 stops35h 41m

Bucharest Otopeni Intl

Sat 1/10

6:35 pm-6:33 pm

2 stops31h 58m

$615

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Sun 9/7

1:30 pm-3:20 pm

2 stops41h 50m

Bucharest Otopeni Intl

Tue 9/23

6:00 am-7:57 pm

2 stops21h 57m

$670

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 32 results
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Best time to book a flight from Illinois to Otopeni Intl

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

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

Currently, November is the cheapest month in which you can book a flight from Illinois to Bucharest Otopeni Intl Airport (average of $604). Flying from Illinois to Bucharest Otopeni Intl Airport in June is currently the most expensive (average of $1,137). 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 IL to OTP?

Find hourly flight availability from Illinois 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 July 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Bucharest Otopeni Intl Airport as you normally would.

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 July 31, 2025.
Peruse reviews from past customers who have flown with Emirates, Delta, and LOT from Illinois to Bucharest Otopeni Intl Airport to help guide your decision. 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

Overall

8.1

Crew

8.3

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Food

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Emirates
8.1
Very good
3,300 reviews
Emirates
8.1
Very good
3,300 reviews

Overall

8.1

Crew

8.3

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Food

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Delta
8.0
Very good
7,981 reviews
Emirates
8.1
Very good
3,300 reviews

Overall

8.1

Crew

8.3

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Food

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
LOT
7.6
Good
1,105 reviews
Emirates
8.1
Very good
3,300 reviews

Overall

8.1

Crew

8.3

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Food

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Austrian Airlines
7.6
Good
823 reviews
Emirates
8.1
Very good
3,300 reviews

Overall

8.1

Crew

8.3

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Food

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Air France
7.5
Good
1,465 reviews
Emirates
8.1
Very good
3,300 reviews

Overall

8.1

Crew

8.3

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Food

7.9

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

Related info for your journey

Find useful and relevant information for your journey from Illinois 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 to fly from Illinois to Bucharest Otopeni Intl Airport one-way?

    The cheapest airline one-way is Turkish Airlines, with whom users have recently found tickets for as low as $381. However, be on the lookout for offers from Air Serbia and British Airways, as they are both options that can get you from Illinois to Bucharest Otopeni Intl Airport for a low price.

  • What are the most popular routes from Illinois to Bucharest Otopeni Intl Airport?

    The most popular flight routes from Illinois to Bucharest Otopeni Intl Airport are Chicago O'Hare Intl - Bucharest Otopeni Intl, Chicago Midway - Bucharest Otopeni Intl and Lambert-St Louis - Bucharest Otopeni Intl.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Illinois to Bucharest Otopeni Intl Airport (average of $604). Flying from Illinois to Bucharest Otopeni Intl Airport in June is currently the most expensive (average of $1,137). 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
Otopeni

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Alternative routes for Illinois to Otopeni Intl

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Top 10 airlines flying from Illinois to Otopeni Intl

Discover the top 10 airlines that operate flights from Illinois 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$385Average$753FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$503Average$610FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$517Average$638FlexibilityNo cancel feeOn-time78%
LOTCheapest$535Average$884FlexibilityNo cancel feeOn-time81%
British AirwaysCheapest$544Average$715FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$545Average$929FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$580Average$749FlexibilityNo cancel feeOn-time77%
KLMCheapest$582Average$987FlexibilityNo cancel feeOn-time75%
SWISSCheapest$587Average$772FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$588Average$898FlexibilityNo cancel feeOn-time69%

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