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Otopeni Intl

$278+ 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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OTP
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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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 November 3, 2025.

This Gotogate deal was found by Cheapflights users on 11/1. 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 11/911:50 amORD - OTP
1 stop24h 40mTurkish Airlines
Sat 11/223:30 pmOTP - ORD
1 stop26h 35mTurkish Airlines
Deal found 11/1$522
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 11/2310:35 pmORD - OTP
1 stop11h 50mLufthansa
Sun 12/72:50 pmOTP - ORD
1 stop13h 15mLufthansa
Deal found 11/2$530
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Fri 11/710:35 pmORD - OTP
1 stop17h 15mLufthansa
Thu 11/132:45 pmOTP - ORD
1 stop13h 20mLufthansa
Deal found 11/1$531
This Gotogate deal was found by Cheapflights users on 11/3. 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 11/99:50 pmORD - OTP
1 stop12h 45mMultiple Airlines
Sat 11/225:55 amOTP - ORD
2 stops17h 00mMultiple Airlines
Deal found 11/3$532
This CrystalTravel deal was found by Cheapflights users on 11/2. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1010:35 pmORD - OTP
1 stop17h 20mLufthansa
Wed 12/172:40 pmOTP - ORD
1 stop13h 25mLufthansa
Deal found 11/2$541
This Mytrip deal was found by Cheapflights users on 11/1. 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.
Tue 12/27:05 amORD - OTP
2 stops24h 40mMultiple Airlines
Tue 12/161:05 pmOTP - ORD
1 stop13h 20mMultiple Airlines
Deal found 11/1$546
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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 11/149:50 pmORD - OTP
1 stop12h 45mLufthansa
Fri 11/212:50 pmOTP - ORD
1 stop13h 15mLufthansa
Deal found 11/2$551
This Mytrip deal was found by Cheapflights users on 11/1. 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.
Fri 11/710:35 pmORD - OTP
1 stop17h 15mMultiple Airlines
Thu 11/135:50 amOTP - ORD
2 stops17h 05mMultiple Airlines
Deal found 11/1$555
This Delta deal was found by Cheapflights users on 11/2. 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.
Sun 11/910:47 amMDW - OTP
2 stops18h 13mDelta
Sat 11/221:55 pmOTP - MDW
2 stops17h 45mDelta
Deal found 11/2$583
This Delta deal was found by Cheapflights users on 11/2. 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 12/910:49 amMDW - OTP
2 stops17h 16mDelta
Wed 12/176:05 amOTP - MDW
2 stops19h 55mDelta
Deal found 11/2$658
This oojo deal was found by Cheapflights users on 11/1. 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.
Wed 11/55:24 pmSTL - OTP
2 stops31h 26mTurkish Airlines
Sun 11/99:50 pmOTP - STL
2 stops25h 56mTurkish Airlines
Deal found 11/1$696
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Wed 11/53:50 pmSTL - OTP
1 stop18h 50mLufthansa
Sun 11/91:05 pmOTP - STL
2 stops16h 35mLufthansa
Deal found 11/1$770

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 November 3, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$524
(oojo)

One-way from

$278
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$616

Good round-trip deal

$827 or less
Provider with most accurate pricing for Chicago (CHI)-Bucharest (BUH) flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Bucharest (BUH) flights.
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From Illinois to Bucharest Otopeni Intl
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One-way flight from Illinois to Bucharest Otopeni Intl
Search Deals
Highest demand for flights based on searches. 28% potential increase in price ($301 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Bucharest Otopeni Intl.
Search Deals

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 November 3, 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

Fri 3/13

9:20 pm-8:30 pm

1 stop16h 10m

Bucharest Otopeni Intl

Sat 3/21

10:10 am-7:25 pm

1 stop16h 15m

$527

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Fri 1/16

3:50 pm-2:10 pm

1 stop14h 20m

Bucharest Otopeni Intl

Tue 1/20

5:55 am-11:59 pm

2 stops26h 04m

$547

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Fri 1/16

7:00 am-1:50 pm

2 stops22h 50m

Bucharest Otopeni Intl

Tue 1/20

6:00 am-8:45 pm

2 stops22h 45m

$548

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Fri 3/6

12:00 pm-6:35 pm

2 stops22h 35m

Bucharest Otopeni Intl

Fri 3/20

5:55 am-11:18 am

2 stops36h 23m

$567

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Tue 2/3

1:00 pm-12:20 pm

2 stops15h 20m

Bucharest Otopeni Intl

Tue 2/17

5:55 am-11:10 am

1 stop13h 15m

$567

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Fri 11/14

10:46 am-1:50 pm

2 stops19h 04m

Bucharest Otopeni Intl

Fri 11/21

6:00 am-2:20 pm

1 stop16h 20m

$567

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sat 1/31

1:00 pm-12:20 pm

2 stops15h 20m

Bucharest Otopeni Intl

Sat 2/14

5:55 am-11:10 am

1 stop13h 15m

$567

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Tue 12/9

5:20 pm-3:50 pm

1 stop14h 30m

Bucharest Otopeni Intl

Wed 12/17

8:40 am-3:10 pm

1 stop14h 30m

$568

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 3/5

3:20 pm-3:45 pm

2 stops16h 25m

Bucharest Otopeni Intl

Thu 3/19

8:00 am-7:45 pm

1 stop18h 45m

$571

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Tue 12/9

10:36 am-12:05 pm

2 stops17h 29m

Bucharest Otopeni Intl

Wed 12/17

6:05 am-3:10 pm

1 stop17h 05m

$573

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 43 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, April is the cheapest month in which you can book a flight from Illinois to Bucharest Otopeni Intl Airport (average of $334). Flying from Illinois to Bucharest Otopeni Intl Airport in June is currently the most expensive (average of $826). 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 November 3, 2025.

It’s typically best to fly out from Illinois to Bucharest Otopeni Intl Airport in the afternoon. Doing so could potentially save you 38% on the flight price compared to flying in the morning, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Illinois to Otopeni Intl. Price data was last updated on December 16, 2024.

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

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.

  • How long is the flight from Illinois to Bucharest Otopeni Intl Airport?

    A quick flight from Illinois to Bucharest Otopeni Intl Airport can take about 14h 20m. Turkish Airlines provides one of the quickest options available for as low as $547. There are 5451 mi between Illinois and Bucharest Otopeni Intl Airport. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airline one-way is Air Serbia, with whom users have recently found tickets for as low as $321. However, be on the lookout for offers from Delta and Lufthansa, 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.

  • What are the cheapest flights from Illinois to Bucharest Otopeni Intl Airport?

    While on average a flight from Illinois to Bucharest Otopeni Intl Airport is generally $833, our data shows the cheapest flight currently is $818. When looking at the most popular route, (Chicago O'Hare Intl - Bucharest Otopeni Intl), you can expect to pay $485 for that flight.

  • 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, April is the cheapest month in which you can book a flight from Illinois to Bucharest Otopeni Intl Airport (average of $334). Flying from Illinois to Bucharest Otopeni Intl Airport in June is currently the most expensive (average of $826). 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$385Average$728FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$504Average$598FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$517Average$732FlexibilityNo cancel feeOn-time78%
LOTCheapest$538Average$906FlexibilityNo cancel feeOn-time81%
British AirwaysCheapest$575Average$748FlexibilityNo cancel feeOn-time70%
SWISSCheapest$587Average$760FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$588Average$887FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$595Average$909FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$618Average$749FlexibilityNo cancel feeOn-time77%
Air SerbiaCheapest$655Average$714FlexibilityNo cancel feeOn-timeN/A

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