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Otopeni Intl

$268+ 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 3/14. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OTP
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This CrystalTravel deal was found by Cheapflights users on 1/28. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1911:50 am
ORD
-
OTP
1 stop13h 00m
Turkish Airlines
Thu 3/510:10 am
OTP
-
ORD
1 stop16h 15m
Turkish Airlines
Deal found 1/28$507
This oojo deal was found by Cheapflights users on 1/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2810:07 am
ORD
-
OTP
2 stops31h 13m
British Airways
Tue 5/126:10 pm
OTP
-
ORD
1 stop32h 05m
British Airways
Deal found 1/28$509
This Air France deal was found by Cheapflights users on 1/28. 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.
Tue 4/285:10 pm
ORD
-
OTP
1 stop21h 40m
Multiple Airlines
Wed 5/137:00 am
OTP
-
ORD
1 stop15h 30m
Multiple Airlines
Deal found 1/28$510
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Tue 4/282:25 pm
ORD
-
OTP
2 stops20h 10m
United Airlines
Wed 5/136:05 am
OTP
-
ORD
1 stop12h 55m
United Airlines
Deal found 1/28$516
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1710:50 pm
ORD
-
OTP
1 stop12h 45m
Lufthansa
Tue 3/311:50 pm
OTP
-
ORD
1 stop14h 05m
Lufthansa
Deal found 1/26$517
This Justfly.com deal was found by Cheapflights users on 1/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/188:20 pm
ORD
-
OTP
1 stop16h 10m
Turkish Airlines
Wed 3/410:10 am
OTP
-
ORD
1 stop16h 15m
Turkish Airlines
Deal found 1/27$518
This FlightHub deal was found by Cheapflights users on 1/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/208:10 pm
ORD
-
OTP
1 stop16h 05m
Turkish Airlines
Sun 4/269:30 am
OTP
-
ORD
1 stop32h 10m
Turkish Airlines
Deal found 1/27$519
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2611:25 am
ORD
-
OTP
1 stop12h 45m
Turkish Airlines
Sun 5/109:35 pm
OTP
-
ORD
1 stop20h 05m
Turkish Airlines
Deal found 1/28$523
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/278:10 pm
ORD
-
OTP
1 stop16h 05m
Turkish Airlines
Mon 5/119:35 pm
OTP
-
ORD
1 stop20h 05m
Turkish Airlines
Deal found 1/28$524
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/189:50 pm
ORD
-
OTP
1 stop12h 45m
Lufthansa
Fri 2/272:50 pm
OTP
-
ORD
1 stop13h 15m
Lufthansa
Deal found 1/28$525
This oojo deal was found by Cheapflights users on 1/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/238:20 pm
ORD
-
OTP
1 stop28h 30m
Turkish Airlines
Wed 3/1110:10 am
OTP
-
ORD
1 stop31h 55m
Turkish Airlines
Deal found 1/28$527
This Delta deal was found by Cheapflights users on 1/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/301:26 pm
MDW
-
OTP
2 stops16h 24m
Delta
Fri 2/136:00 am
OTP
-
MDW
2 stops20h 40m
Delta
Deal found 1/27$580

Find 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$507
(CrystalTravel)

One-way from

$268
(Kiwi.com)

Popular in

July

Cheapest in

October

Average price

$626

Good round-trip deal

$812 or less

Good one-way deal

$419 or less
Provider with most accurate pricing for Chicago (CHI)-Bucharest (BUH) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Bucharest (BUH) flights.
Search Deals
From Illinois to Bucharest Otopeni Intl
Search Deals
One-way flight from Illinois to Bucharest Otopeni Intl
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($173 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Illinois to Bucharest Otopeni Intl.
Search Deals
Price to beat on a one-way 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 January 29, 2026.
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 2/23

8:20 pm-8:50 am

1 stop28h 30m

Bucharest Otopeni Intl

Wed 3/11

10:10 am-11:05 am

1 stop31h 55m

$527

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Tue 4/28

9:40 pm-6:35 pm

1 stop12h 55m

Bucharest Otopeni Intl

Sun 5/10

2:05 pm-7:55 pm

1 stop13h 50m

$540

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Tue 4/28

10:20 am-1:00 pm

2 stops18h 40m

Bucharest Otopeni Intl

Sat 5/9

7:05 am-2:15 pm

1 stop15h 10m

$548

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 2/22

6:50 pm-3:50 pm

1 stop13h 00m

Bucharest Otopeni Intl

Fri 3/13

6:55 am-3:00 pm

1 stop15h 05m

$554

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 2/22

11:50 am-8:50 am

1 stop13h 00m

Bucharest Otopeni Intl

Wed 3/11

10:10 am-7:25 pm

1 stop16h 15m

$555

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 2/23

8:20 pm-8:30 pm

1 stop16h 10m

Bucharest Otopeni Intl

Thu 3/12

9:50 pm-11:05 am

1 stop20h 15m

$555

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 4/27

4:50 pm-5:20 pm

1 stop16h 30m

Bucharest Otopeni Intl

Mon 5/11

6:00 am-6:41 pm

2 stops20h 41m

$559

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 3/22

6:20 pm-10:50 pm

1 stop21h 30m

Bucharest Otopeni Intl

Wed 4/1

2:00 pm-2:15 pm

1 stop32h 15m

$563

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 3/22

6:20 pm-10:50 pm

1 stop21h 30m

Bucharest Otopeni Intl

Thu 4/2

7:00 am-2:15 pm

1 stop15h 15m

$563

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 2/23

9:48 am-12:05 pm

2 stops18h 17m

Bucharest Otopeni Intl

Thu 3/12

1:55 pm-3:20 pm

1 stop32h 25m

$570

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 50 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 $332). Flying from Illinois to Bucharest Otopeni Intl Airport in June is currently the most expensive (average of $759). 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.

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 12h 55m. Turkish Airlines provides one of the quickest options available for as low as $540. There are 5198 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 Austrian Airlines, with whom users have recently found tickets for as low as $251. However, be on the lookout for offers from KLM and Turkish Airlines, 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 $639, our data shows the cheapest flight currently is $415. When looking at the most popular route, (Chicago O'Hare Intl - Bucharest Otopeni Intl), you can expect to pay $496 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 $332). Flying from Illinois to Bucharest Otopeni Intl Airport in June is currently the most expensive (average of $759). 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$326Average$622FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$503Average$596FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$517Average$732FlexibilityNo cancel feeOn-time78%
KLMCheapest$541Average$887FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$553Average$803FlexibilityNo cancel feeOn-time70%
LOTCheapest$562Average$896FlexibilityNo cancel feeOn-time81%
LufthansaCheapest$566Average$826FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$569Average$749FlexibilityNo cancel feeOn-time77%
DeltaCheapest$575Average$992FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$586Average$782FlexibilityNo cancel feeOn-time79%

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