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$535+ Cheap flights from Otopeni Intl (OTP) to Illinois

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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
OTP — ORD
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
1 adult, Economy
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Cheap flight deals from Otopeni Intl to Illinois

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

Round-trip from

$649
(American Airlines)

One-way from

$535
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$871
From Bucharest Otopeni Intl to Illinois
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One-way flight from Bucharest Otopeni Intl to Illinois
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Highest demand for flights based on searches. 9% potential increase in price ($74 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 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 Otopeni Intl to Illinois

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

This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/68:25 amOTP - ORD
1 stop35h 25mAmerican Airlines
sáb. 9/201:59 pmORD - OTP
2 stops16h 01mAmerican Airlines
Deal found 7/31$649
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.
dom. 9/147:00 amOTP - ORD
1 stop15h 10mDelta
mié. 10/110:40 amORD - OTP
2 stops17h 30mDelta
Deal found 7/31$650
This Lufthansa 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/166:00 amOTP - ORD
1 stop16h 55mLufthansa
dom. 10/59:40 pmORD - OTP
1 stop19h 20mLufthansa
Deal found 7/30$652
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/166:15 pmOTP - ORD
1 stop27h 35mBritish Airways
jue. 10/25:40 pmORD - OTP
1 stop12h 50mBritish Airways
Deal found 7/30$653
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/146:05 pmOTP - ORD
1 stop28h 35mMultiple Airlines
dom. 9/215:10 pmORD - OTP
1 stop14h 40mMultiple Airlines
Deal found 7/31$654
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/156:00 amOTP - ORD
1 stop21h 55mUnited Airlines
lun. 9/2910:45 amORD - OTP
2 stops18h 20mUnited Airlines
Deal found 7/30$655
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/176:00 amOTP - ORD
2 stops16h 55mAir Canada
mié. 10/110:40 amORD - OTP
2 stops20h 40mAir Canada
Deal found 7/30$656
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/187:00 amOTP - MDW
2 stops22h 36mDelta
jue. 10/210:35 amMDW - OTP
2 stops17h 35mDelta
Deal found 7/30$658
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/281:45 pmOTP - ORD
1 stop32h 25mKLM
vie. 9/124:15 pmORD - OTP
1 stop15h 10mKLM
Deal found 7/30$665
This Scandinavian 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/309:25 pmOTP - ORD
1 stop26h 45mScandinavian Airlines
sáb. 9/137:25 amORD - OTP
2 stops29h 10mScandinavian Airlines
Deal found 7/30$673

Cheapflights Fare Finder

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

Fly from

Otopeni Intl

Fly to

Illinois

Route

Depart

Return

Price

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

sáb. 9/6

8:25 am-11:50 am

1 stop35h 25m

Chicago O'Hare Intl

sáb. 9/20

1:59 pm-2:00 pm

2 stops16h 01m

$649

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

dom. 9/14

7:00 am-2:10 pm

1 stop15h 10m

Chicago O'Hare Intl

mié. 10/1

10:40 am-12:10 pm

2 stops17h 30m

$650

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

mar. 9/16

6:00 am-2:55 pm

1 stop16h 55m

Chicago O'Hare Intl

lun. 9/29

9:40 pm-1:00 am

1 stop19h 20m

$652

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

mar. 9/16

6:15 pm-1:50 pm

1 stop27h 35m

Chicago O'Hare Intl

jue. 10/2

5:40 pm-2:30 pm

1 stop12h 50m

$653

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

dom. 9/14

6:05 pm-2:40 pm

1 stop28h 35m

Chicago O'Hare Intl

dom. 9/21

5:10 pm-3:50 pm

1 stop14h 40m

$654

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

lun. 9/15

6:00 am-7:55 pm

1 stop21h 55m

Chicago O'Hare Intl

dom. 10/5

10:30 pm-11:50 pm

1 stop17h 20m

$655

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

mié. 9/17

6:00 am-2:55 pm

2 stops16h 55m

Chicago O'Hare Intl

mié. 10/1

10:40 am-3:20 pm

2 stops20h 40m

$656

BucharestChicago

OTP - MDW

OTPMDW

Bucharest Otopeni Intl

jue. 9/18

7:00 am-9:36 pm

2 stops22h 36m

Chicago Midway

jue. 10/2

10:35 am-12:10 pm

2 stops17h 35m

$658

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

jue. 8/28

1:45 pm-2:10 pm

1 stop32h 25m

Chicago O'Hare Intl

vie. 9/12

4:15 pm-3:25 pm

1 stop15h 10m

$665

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

sáb. 8/30

9:25 pm-4:10 pm

1 stop26h 45m

Chicago O'Hare Intl

sáb. 9/13

7:25 am-8:35 pm

2 stops29h 10m

$673

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 25 results
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Best time to book a flight from Otopeni Intl to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois 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 Illinois

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

Currently, August is the cheapest month in which you can book a flight from Bucharest Otopeni Intl Airport to Illinois (average of $245). Flying from Bucharest Otopeni Intl Airport to Illinois in March is currently the most expensive (average of $321). 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 IL?

Find hourly flight availability from Otopeni Intl to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 31, 2025.

When flying from Bucharest Otopeni Intl Airport to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Bucharest Otopeni Intl Airport to Illinois?

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated julio 31, 2025.
Read reviews from past customers who have flown Emirates, Delta, and KLM from Bucharest Otopeni Intl Airport to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,300 reviews

Comfort

8.0

Crew

8.3

Food

7.9

Overall

8.1

Boarding

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.
Emirates
8.1
Very good
3,300 reviews
Emirates
8.1
Very good
3,300 reviews

Comfort

8.0

Crew

8.3

Food

7.9

Overall

8.1

Boarding

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.
Delta
8.0
Very good
7,981 reviews
Emirates
8.1
Very good
3,300 reviews

Comfort

8.0

Crew

8.3

Food

7.9

Overall

8.1

Boarding

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.
KLM
7.8
Good
1,383 reviews
Emirates
8.1
Very good
3,300 reviews

Comfort

8.0

Crew

8.3

Food

7.9

Overall

8.1

Boarding

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.
LOT
7.6
Good
1,105 reviews
Emirates
8.1
Very good
3,300 reviews

Comfort

8.0

Crew

8.3

Food

7.9

Overall

8.1

Boarding

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.
Austrian Airlines
7.6
Good
823 reviews
Emirates
8.1
Very good
3,300 reviews

Comfort

8.0

Crew

8.3

Food

7.9

Overall

8.1

Boarding

8.1

Entertainment

8.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2025

ATH - EWR

Best flight I taken. Airline stewards were very attentive and creative a very comfortable environment. Food was plentiful, gave a variety for each meal and delicious.

Related info for your journey

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

    For one-way options, check prices for Scandinavian Airlines. According to our data, you can fly for as low as $575. Users have also found prices from $616 and $621 on Lufthansa and Air Serbia, respectively.

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

    The most popular route from Bucharest Otopeni Intl Airport to Illinois is Bucharest Otopeni Intl - Chicago O'Hare Intl. You may also consider Bucharest Otopeni Intl - Chicago Midway or Bucharest Otopeni Intl - Lambert-St Louis.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Bucharest Otopeni Intl Airport to Illinois (average of $245). Flying from Bucharest Otopeni Intl Airport to Illinois in March is currently the most expensive (average of $321). 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.

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Alternative routes for Otopeni Intl to Illinois

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Top 9 airlines flying from Otopeni Intl to Illinois

Discover the top 9 airlines that operate flights from Otopeni Intl to Illinois. 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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$336Average$760FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$548Average$595FlexibilityNo cancel feeOn-time71%
KLMCheapest$570Average$707FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$581Average$654FlexibilityNo cancel feeOn-time77%
LOTCheapest$583Average$618FlexibilityNo cancel feeOn-time81%
LufthansaCheapest$593Average$849FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$594Average$808FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$597Average$695FlexibilityNo cancel feeOn-time70%
DeltaCheapest$623Average$634FlexibilityNo cancel feeOn-timeN/A

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