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$406+ 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 6/17. Fares are subject to change and may not be available on all flights or dates of travel.
OTP — ORD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$636
(LOT)

One-way from

$406
(SmartFares)

Popular in

July

Cheapest in

February

Average price

$728
From Bucharest Otopeni Intl to Illinois
Search Deals
One-way flight from Bucharest Otopeni Intl to Illinois
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($73 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 June 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 June 12, 2025.

This British Airways deal was found by Cheapflights users on 6/11. 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.
Fri 9/268:25 amOTP - ORD
1 stop15h 30mBritish Airways
Fri 10/1010:35 pmORD - OTP
1 stop17h 15mBritish Airways
Deal found 6/11$626
This KLM deal was found by Cheapflights users on 6/11. 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.
Sat 11/11:55 pmOTP - ORD
1 stop32h 35mMultiple Airlines
Sat 11/155:20 pmORD - OTP
1 stop18h 50mMultiple Airlines
Deal found 6/11$628
This LOT deal was found by Cheapflights users on 6/12. 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 LOT is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/66:30 pmOTP - ORD
1 stop25h 35mLOT
Sat 9/205:10 pmORD - OTP
1 stop24h 40mLOT
Deal found 6/12$636
This Delta deal was found by Cheapflights users on 6/11. 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 10/27:00 amOTP - MDW
2 stops19h 36mDelta
Sat 10/112:00 pmMDW - OTP
2 stops19h 20mDelta
Deal found 6/11$641
This Delta deal was found by Cheapflights users on 6/11. 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.
Sat 11/16:00 amOTP - ORD
2 stops22h 46mDelta
Sat 11/151:35 pmORD - OTP
2 stops15h 35mDelta
Deal found 6/11$641
This Scandinavian Airlines deal was found by Cheapflights users on 6/11. 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 6/159:25 pmOTP - ORD
2 stops32h 40mScandinavian Airlines
Sat 9/137:15 pmORD - OTP
1 stop17h 20mScandinavian Airlines
Deal found 6/11$664
This British Airways deal was found by Cheapflights users on 6/10. 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.
Tue 9/96:15 pmOTP - STL
2 stops34h 17mBritish Airways
Fri 9/265:00 pmSTL - OTP
2 stops22h 50mBritish Airways
Deal found 6/10$666
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 9/68:25 amOTP - ORD
2 stops20h 58mAmerican Airlines
Sat 9/201:15 pmORD - OTP
2 stops16h 45mAmerican Airlines
Deal found 6/10$667
This United Airlines deal was found by Cheapflights users on 6/12. 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 9/126:00 amOTP - STL
2 stops21h 57mUnited Airlines
Tue 9/233:20 pmSTL - OTP
2 stops19h 15mUnited Airlines
Deal found 6/12$691
This United Airlines deal was found by Cheapflights users on 6/10. 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 9/266:00 amOTP - ORD
2 stops16h 55mUnited Airlines
Fri 10/103:05 pmORD - OTP
1 stop18h 50mUnited Airlines
Deal found 6/10$693
This Lufthansa deal was found by Cheapflights users on 6/10. 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.
Wed 9/106:00 amOTP - STL
1 stop15h 30mLufthansa
Tue 9/235:30 pmSTL - OTP
2 stops23h 25mLufthansa
Deal found 6/10$703
This Air Canada deal was found by Cheapflights users on 6/11. 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.
Fri 9/266:00 amOTP - ORD
2 stops16h 55mAir Canada
Fri 10/1010:40 amORD - OTP
2 stops23h 15mAir Canada
Deal found 6/11$705

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 June 12, 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

Sat 9/6

6:30 pm-12:05 pm

1 stop25h 35m

Chicago O'Hare Intl

Sat 9/20

5:10 pm-1:50 am

1 stop24h 40m

$636

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Thu 7/10

9:15 pm-3:55 pm

1 stop26h 40m

Chicago O'Hare Intl

Thu 7/24

5:00 pm-1:25 am

1 stop24h 25m

$650

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sun 6/15

9:25 pm-10:05 pm

2 stops32h 40m

Chicago O'Hare Intl

Sat 9/13

7:15 pm-8:35 pm

1 stop17h 20m

$664

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Tue 9/9

6:15 pm-8:32 pm

2 stops34h 17m

Lambert-St Louis

Fri 9/26

5:00 pm-11:50 pm

2 stops22h 50m

$666

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sat 9/6

8:25 am-9:23 pm

2 stops20h 58m

Chicago O'Hare Intl

Sat 9/20

1:15 pm-2:00 pm

2 stops16h 45m

$667

BucharestChicago

OTP - MDW

OTPMDW

Bucharest Otopeni Intl

Sat 9/6

7:00 am-6:37 pm

2 stops19h 37m

Chicago Midway

Sat 9/20

1:00 pm-5:20 pm

2 stops20h 20m

$682

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sat 9/6

7:00 am-9:35 pm

2 stops22h 35m

Chicago O'Hare Intl

Sat 9/20

1:35 pm-5:20 pm

2 stops19h 45m

$682

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Fri 9/12

6:00 am-7:57 pm

2 stops21h 57m

Lambert-St Louis

Tue 9/23

3:20 pm-6:35 pm

2 stops19h 15m

$691

BucharestSt. Louis

OTP - STL

OTPSTL

Bucharest Otopeni Intl

Wed 9/10

6:00 am-1:30 pm

1 stop15h 30m

Lambert-St Louis

Tue 9/23

5:30 pm-12:55 am

2 stops23h 25m

$703

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Fri 8/15

1:55 pm-12:01 pm

2 stops30h 06m

Chicago O'Hare Intl

Fri 9/12

6:30 pm-11:40 pm

1 stop21h 10m

$703

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 43 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 June 12, 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.

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 June 12, 2025.
Read reviews from past customers who have flown Emirates, Delta and KLM from Bucharest to Illinois. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,264 reviews

Boarding

8.1

Food

7.8

Crew

8.3

Comfort

8.0

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Emirates
8.1
Very good
3,264 reviews
Emirates
8.1
Very good
3,264 reviews

Boarding

8.1

Food

7.8

Crew

8.3

Comfort

8.0

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Delta
8.0
Very good
7,950 reviews
Emirates
8.1
Very good
3,264 reviews

Boarding

8.1

Food

7.8

Crew

8.3

Comfort

8.0

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
KLM
7.8
Good
1,358 reviews
Emirates
8.1
Very good
3,264 reviews

Boarding

8.1

Food

7.8

Crew

8.3

Comfort

8.0

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
LOT
7.6
Good
1,077 reviews
Emirates
8.1
Very good
3,264 reviews

Boarding

8.1

Food

7.8

Crew

8.3

Comfort

8.0

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Austrian Airlines
7.6
Good
802 reviews
Emirates
8.1
Very good
3,264 reviews

Boarding

8.1

Food

7.8

Crew

8.3

Comfort

8.0

Overall

8.1

Entertainment

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

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 Air Serbia. According to our data, you can fly for as low as $406. Users have also found prices from $552 and $601 on Scandinavian Airlines and SWISS, 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.

See more FAQs

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Alternative routes for Otopeni Intl to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$336Average$725FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$548Average$595FlexibilityNo cancel feeOn-time71%
KLMCheapest$570Average$702FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$581Average$695FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$581Average$654FlexibilityNo cancel feeOn-time77%
LOTCheapest$583Average$615FlexibilityNo cancel feeOn-time81%
LufthansaCheapest$593Average$849FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$594Average$815FlexibilityNo cancel feeOn-time69%
DeltaCheapest$623Average$634FlexibilityNo cancel feeOn-timeN/A

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