HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$405+ Cheap flights from Romania 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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
OTP — ORD
Dec 17 — Dec 241
Wed 12/17
Wed 12/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Romania to Illinois with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Romania to Illinois

Keep the following information in mind while searching for Romania to Illinois flight deals. Data was last updated November 17, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$649
(FlightHub)

One-way from

$405
(Mytrip)

Popular in

July

Cheapest in

September

Average price

$814
Provider with most accurate pricing for Bucharest (BUH)-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bucharest (BUH)-Chicago (CHI) flights.
Search Deals
From Romania to Illinois
Search Deals
One-way flight from Romania to Illinois
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($79 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from Romania to Illinois

Cheapest flights from Romania to Illinois
Explore the most affordable flight options available from Romania to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 17, 2025.

This Mytrip deal was found by Cheapflights users on 11/16. 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.
Sat 12/62:30 pmOTP - ORD
2 stops32h 15mMultiple Airlines
Fri 1/96:30 pmORD - OTP
2 stops22h 20mMultiple Airlines
Deal found 11/16$660
This United Airlines deal was found by Cheapflights users on 11/17. 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 11/256:00 amSBZ - ORD
2 stops34h 02mUnited Airlines
Mon 12/86:15 pmORD - SBZ
2 stops16h 00mUnited Airlines
Deal found 11/17$666
This Booking.com deal was found by Cheapflights users on 11/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/65:55 amOTP - ORD
1 stop15h 15mLufthansa
Fri 1/94:20 pmORD - OTP
1 stop13h 50mLufthansa
Deal found 11/16$667
This United Airlines deal was found by Cheapflights users on 11/16. 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.
Sat 12/65:55 amOTP - ORD
1 stop17h 25mUnited Airlines
Fri 1/96:17 pmORD - OTP
2 stops21h 33mUnited Airlines
Deal found 11/16$672
This LOT deal was found by Cheapflights users on 11/16. 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 12/61:55 pmCLJ - ORD
1 stop14h 05mLOT
Fri 1/239:55 pmORD - CLJ
1 stop11h 40mLOT
Deal found 11/16$675
This United Airlines deal was found by Cheapflights users on 11/17. 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.
Mon 12/156:00 amCLJ - ORD
2 stops33h 42mUnited Airlines
Sat 1/176:17 pmORD - CLJ
2 stops35h 23mUnited Airlines
Deal found 11/17$683
This United Airlines deal was found by Cheapflights users on 11/17. 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 11/256:00 amSBZ - ORD
2 stops34h 02mUnited Airlines
Tue 12/93:20 pmORD - SBZ
2 stops14h 25mUnited Airlines
Deal found 11/17$690
This Iberia deal was found by Cheapflights users on 11/16. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/258:00 amOTP - ORD
1 stop18h 45mMultiple Airlines
Wed 1/71:34 pmORD - OTP
2 stops18h 11mMultiple Airlines
Deal found 11/16$697
This Lufthansa deal was found by Cheapflights users on 11/16. 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.
Fri 12/125:55 amOTP - ORD
1 stop17h 25mLufthansa
Sun 12/289:50 pmORD - OTP
1 stop19h 15mLufthansa
Deal found 11/16$698
This Lufthansa deal was found by Cheapflights users on 11/16. 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.
Tue 12/235:55 amOTP - ORD
1 stop13h 15mLufthansa
Wed 12/319:50 pmORD - OTP
1 stop19h 15mLufthansa
Deal found 11/16$700
This SWISS deal was found by Cheapflights users on 11/16. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:50 amCLJ - ORD
1 stop13h 30mSWISS
Sat 2/216:50 pmORD - CLJ
1 stop11h 40mSWISS
Deal found 11/16$700
This United Airlines deal was found by Cheapflights users on 11/16. 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 12/235:55 amOTP - ORD
1 stop13h 15mUnited Airlines
Fri 1/93:20 pmORD - OTP
1 stop14h 50mUnited Airlines
Deal found 11/16$701

Cheapflights Fare Finder

 
Customize your flight search to find flights from Romania 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 November 17, 2025.
Use the filters below to find and compare flights from Romania to Illinois that are best for you.

Fly from

Romania

Fly to

Illinois

Route

Depart

Return

Price

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Sat 2/21

5:55 am-1:10 pm

1 stop15h 15m

Chicago O'Hare Intl

Sun 3/1

10:35 pm-11:50 pm

1 stop17h 15m

$661

SibiuChicago

SBZ - ORD

SBZORD

Sibiu

Fri 1/23

6:00 am-6:25 pm

1 stop20h 25m

Chicago O'Hare Intl

Thu 2/12

6:00 pm-1:45 pm

1 stop11h 45m

$662

SibiuChicago

SBZ - ORD

SBZORD

Sibiu

Fri 1/23

6:00 am-6:25 pm

1 stop20h 25m

Chicago O'Hare Intl

Wed 2/11

9:50 pm-6:15 pm

1 stop12h 25m

$662

SibiuChicago

SBZ - ORD

SBZORD

Sibiu

Thu 1/22

6:00 am-6:25 pm

1 stop20h 25m

Chicago O'Hare Intl

Mon 2/9

6:00 pm-6:15 pm

1 stop16h 15m

$662

SibiuChicago

SBZ - ORD

SBZORD

Sibiu

Fri 1/23

6:00 am-2:10 pm

1 stop16h 10m

Chicago O'Hare Intl

Fri 2/13

9:50 pm-6:15 pm

1 stop12h 25m

$662

SibiuChicago

SBZ - ORD

SBZORD

Sibiu

Thu 1/22

6:00 am-6:25 pm

1 stop20h 25m

Chicago O'Hare Intl

Fri 2/13

9:50 pm-6:15 pm

1 stop12h 25m

$662

SibiuChicago

SBZ - ORD

SBZORD

Sibiu

Thu 1/22

6:00 am-2:10 pm

1 stop16h 10m

Chicago O'Hare Intl

Sat 2/7

6:00 pm-1:45 pm

1 stop11h 45m

$662

SibiuChicago

SBZ - ORD

SBZORD

Sibiu

Fri 1/23

6:00 am-2:10 pm

1 stop16h 10m

Chicago O'Hare Intl

Sat 2/7

6:00 pm-1:45 pm

1 stop11h 45m

$662

SibiuChicago

SBZ - ORD

SBZORD

Sibiu

Thu 1/22

6:00 am-6:15 pm

2 stops20h 15m

Chicago O'Hare Intl

Tue 2/10

1:55 pm-1:45 pm

2 stops15h 50m

$669

BucharestChicago

OTP - ORD

OTPORD

Bucharest Otopeni Intl

Tue 3/24

5:55 am-8:10 pm

2 stops21h 15m

Chicago O'Hare Intl

Tue 5/5

9:40 pm-1:00 am

1 stop19h 20m

$670

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/16

Showing 1-10 of 48 results
1
2
3
...
5

Best time to book a flight from Romania to Illinois

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

What is the cheapest month to book a flight from Romania to Illinois?

Currently, July is the cheapest month in which you can book a flight from Romania to Illinois (average of $353). Flying from Romania to Illinois in January is currently the most expensive (average of $625). 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 RO to IL?

Find hourly flight availability from Romania 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 November 17, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 20% on flights from Romania to Illinois by exploring options for tickets in the afternoon.

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 November 17, 2025.
See what other customers who have flown with LOT, United Airlines, and Turkish Airlines from Romania to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
LOT
7.5
Good
1,134 reviews

Food

7.1

Boarding

7.6

Overall

7.5

Comfort

7.5

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.
LOT
7.5
Good
1,134 reviews
LOT
7.5
Good
1,134 reviews

Food

7.1

Boarding

7.6

Overall

7.5

Comfort

7.5

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.
United Airlines
7.4
Good
9,015 reviews
LOT
7.5
Good
1,134 reviews

Food

7.1

Boarding

7.6

Overall

7.5

Comfort

7.5

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.
Turkish Airlines
7.3
Good
4,047 reviews
LOT
7.5
Good
1,134 reviews

Food

7.1

Boarding

7.6

Overall

7.5

Comfort

7.5

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.
Lufthansa
6.8
Okay
7,576 reviews
LOT
7.5
Good
1,134 reviews

Food

7.1

Boarding

7.6

Overall

7.5

Comfort

7.5

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.
British Airways
6.7
Okay
7,528 reviews
LOT
7.5
Good
1,134 reviews

Food

7.1

Boarding

7.6

Overall

7.5

Comfort

7.5

Crew

8.2

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.

Related info for your journey

Find useful and relevant information for your journey from Romania to Illinois. 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 Romania to Illinois?

    There are many flights that can get you from Romania to Illinois in 15h 15m. Fly via Lufthansa, United Airlines, or Delta to get the fastest option. The distance from Romania to Illinois is about 5198 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

  • How can I find direct flights from Romania to Illinois?

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

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

    Yes. Cheapflights offers flight deals from Romania 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 Romania to Illinois?

    Currently, July is the cheapest month in which you can book a flight from Romania to Illinois (average of $353). Flying from Romania to Illinois in January is currently the most expensive (average of $625). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Romania to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Charles de Gaulle to John F Kennedy Intl flights
Charles de Gaulle to Newark flights
Heathrow to John F Kennedy Intl flights
Heathrow to Newark flights
Orly to Newark flights
Charles de Gaulle to LaGuardia flights
Orly to John F Kennedy Intl flights
Frankfurt to John F Kennedy Intl flights
Frankfurt to Newark flights
Charles de Gaulle to Miami flights
Charles de Gaulle to Los Angeles flights
Heathrow to LaGuardia flights
London City to John F Kennedy Intl flights
Gatwick to Newark flights
Vienna to Newark flights
Frankfurt to LaGuardia flights
Stansted to John F Kennedy Intl flights
Beauvais-Tille to Newark flights
Malpensa to Newark flights
Gatwick to LaGuardia flights
Frankfurt to Miami flights
Malpensa to John F Kennedy Intl flights
Madrid to John F Kennedy Intl flights
Berlin to Newark flights
Barcelona-El Prat to Newark flights
London City to Newark flights
Luton to John F Kennedy Intl flights
Frederic Chopin to John F Kennedy Intl flights
Munich to Newark flights
Munich to John F Kennedy Intl flights
Vienna to John F Kennedy Intl flights
Madrid to Newark flights
Amsterdam to John F Kennedy Intl flights
Amsterdam to Newark flights
Barcelona-El Prat to John F Kennedy Intl flights
Orly to Los Angeles flights
Stansted to Newark flights
Gatwick to John F Kennedy Intl flights
Luton to Newark flights
Frederic Chopin to Newark flights
Orly to Miami flights
Bruxelles-National to Newark flights
Madrid to Miami flights
Leonardo da Vinci/Fiumicino to John F Kennedy Intl flights
Leonardo da Vinci/Fiumicino to Newark flights
Heathrow to Miami flights
Zurich to John F Kennedy Intl flights
Charles de Gaulle to San Francisco flights

Top 10 airlines flying from Romania to Illinois

Discover the top 10 airlines that operate flights from Romania 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 November 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$493Average$761FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$548Average$595FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$554Average$855FlexibilityNo cancel feeOn-time76%
SWISSCheapest$565Average$691FlexibilityNo cancel feeOn-time79%
KLMCheapest$570Average$740FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$571Average$796FlexibilityNo cancel feeOn-time69%
LOTCheapest$573Average$714FlexibilityNo cancel feeOn-time81%
British AirwaysCheapest$581Average$695FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$581Average$654FlexibilityNo cancel feeOn-time77%
DeltaCheapest$623Average$634FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.