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$250+ Cheap flights from Illinois to Romania

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 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OTP
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Find flight deals from Illinois to Romania

Cheapest flights from Illinois to Romania
Explore the most affordable flight options available from Illinois to Romania. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 26, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/24. 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.
Sat 11/299:50 pmORD - CLJ
1 stop19h 00mLufthansa
Mon 12/156:00 amCLJ - ORD
1 stop20h 25mLufthansa
Deal found 11/24$486
This Kiwi.com deal was found by Cheapflights users on 11/25. 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.
Sat 11/299:50 pmORD - CLJ
1 stop19h 00mMultiple Airlines
Sun 12/143:15 pmCLJ - ORD
1 stop33h 05mMultiple Airlines
Deal found 11/25$498
This Kiwi.com deal was found by Cheapflights users on 11/24. 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.
Sat 11/296:50 pmORD - CLJ
1 stop11h 40mMultiple Airlines
Mon 12/156:00 amCLJ - ORD
2 stops17h 20mMultiple Airlines
Deal found 11/24$502
This Kiwi.com deal was found by Cheapflights users on 11/25. 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 12/94:10 pmORD - CLJ
1 stop33h 55mSWISS
Sun 1/113:15 pmCLJ - ORD
1 stop29h 30mSWISS
Deal found 11/25$516
This Kiwi.com deal was found by Cheapflights users on 11/24. 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 12/89:50 pmORD - OTP
1 stop12h 45mLufthansa
Mon 12/155:55 amOTP - ORD
1 stop13h 15mLufthansa
Deal found 11/24$520
This Kiwi.com deal was found by Cheapflights users on 11/25. 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.
Sat 11/294:10 pmORD - CLJ
1 stop14h 20mSWISS
Sun 12/143:15 pmCLJ - ORD
2 stops30h 55mSWISS
Deal found 11/25$524
This Kiwi.com deal was found by Cheapflights users on 11/25. 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 12/94:10 pmORD - OTP
1 stop24h 20mMultiple Airlines
Tue 12/231:20 pmOTP - ORD
1 stop32h 40mMultiple Airlines
Deal found 11/25$524
This United Airlines deal was found by Cheapflights users on 11/25. 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 12/89:50 pmORD - OTP
1 stop12h 45mUnited Airlines
Wed 12/242:40 pmOTP - ORD
1 stop13h 25mUnited Airlines
Deal found 11/25$531
This United Airlines deal was found by Cheapflights users on 11/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/297:15 amORD - CLJ
2 stops22h 25mUnited Airlines
Mon 12/156:00 amCLJ - ORD
1 stop16h 10mUnited Airlines
Deal found 11/26$532
This Delta deal was found by Cheapflights users on 11/25. 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 12/75:20 pmORD - OTP
1 stop21h 30mDelta
Wed 12/246:00 amOTP - ORD
1 stop16h 20mDelta
Deal found 11/25$532
This United Airlines deal was found by Cheapflights users on 11/25. 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.
Sun 12/77:15 amORD - CLJ
2 stops22h 25mUnited Airlines
Sun 1/186:00 amCLJ - ORD
1 stop20h 25mUnited Airlines
Deal found 11/25$533
This Delta deal was found by Cheapflights users on 11/25. 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.
Mon 12/810:40 amORD - OTP
2 stops17h 25mDelta
Wed 12/246:00 amOTP - ORD
1 stop16h 20mDelta
Deal found 11/25$533

Cheap flight deals from Illinois to Romania

Keep the following information in mind while searching for Illinois to Romania flight deals. Data was last updated November 26, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$466
(Kiwi.com)

One-way from

$250
(Mytrip)

Popular in

June

Cheapest in

October

Average price

$600

Good round-trip deal

$827 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 Romania
Search Deals
One-way flight from Illinois to Romania
Search Deals
Highest demand for flights based on searches. 29% potential increase in price ($314 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($32 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 Romania.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Romania 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 26, 2025.
Use the filters below to find and compare flights from Illinois to Romania that are best for you.

Fly from

Illinois

Fly to

Romania

Route

Depart

Return

Price

ChicagoOradea

ORD - OMR

ORDOMR

Chicago O'Hare Intl

Mon 1/26

6:00 pm-1:30 pm

1 stop11h 30m

Oradea

Tue 2/17

2:10 pm-6:25 pm

1 stop12h 15m

$519

ChicagoOradea

ORD - OMR

ORDOMR

Chicago O'Hare Intl

Mon 1/26

6:00 pm-1:30 pm

1 stop11h 30m

Oradea

Fri 2/20

2:10 pm-6:25 pm

1 stop12h 15m

$519

ChicagoOradea

ORD - OMR

ORDOMR

Chicago O'Hare Intl

Sat 1/24

6:00 pm-1:30 pm

1 stop11h 30m

Oradea

Tue 2/17

2:10 pm-6:25 pm

1 stop12h 15m

$525

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Mon 2/9

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

Sun 2/22

6:00 am-6:25 pm

1 stop20h 25m

$529

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Tue 3/3

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

Fri 3/13

6:00 am-7:25 pm

1 stop20h 25m

$529

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Tue 2/10

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

Thu 2/26

6:00 am-2:10 pm

1 stop16h 10m

$529

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Tue 2/10

9:50 pm-12:55 am

1 stop19h 05m

Cluj Napoca

Tue 2/24

6:00 am-6:25 pm

1 stop20h 25m

$529

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Wed 3/4

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

Wed 3/11

6:00 am-7:25 pm

1 stop20h 25m

$529

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Tue 2/10

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

Sat 2/21

6:00 am-2:10 pm

1 stop16h 10m

$530

St. LouisCluj Napoca

STL - CLJ

STLCLJ

Lambert-St Louis

Wed 2/11

1:15 pm-12:55 am

2 stops27h 40m

Cluj Napoca

Sun 2/15

6:00 am-8:23 pm

2 stops22h 23m

$530

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/26

Showing 1-10 of 59 results
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Best time to book a flight from Illinois to Romania

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

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

Currently, April is the cheapest month in which you can book a flight from Illinois to Romania (average of $333). Flying from Illinois to Romania in June is currently the most expensive (average of $754). 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 RO?

Find hourly flight availability from Illinois to Romania. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 26, 2025.

It’s typically best to fly out from Illinois to Romania in the evening. Doing so could potentially save you 11% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Illinois to Romania?

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

Travelers seeking maximum savings on their Illinois to Romania flight should consider departing on Sunday mornings when fares are most often at their lowest. Friday at noon 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 Romania. 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 Romania?

    For as low as $519, Lufthansa can have you in Romania from Illinois in 11h 30m. Airlines will cover a distance of 4935 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Illinois to Romania one-way?

    For one-way options, check prices for SWISS. According to our data, you can fly for as low as $407. Users have also found prices from $447 and $448 on Lufthansa and British Airways, respectively.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Illinois to Romania (average of $333). Flying from Illinois to Romania in June is currently the most expensive (average of $754). 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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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 Romania

Discover the top 10 airlines that operate flights from Illinois to Romania. 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 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$385Average$715FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$503Average$691FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$517Average$776FlexibilityNo cancel feeOn-time78%
LOTCheapest$538Average$933FlexibilityNo cancel feeOn-time81%
KLMCheapest$539Average$938FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$570Average$966FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$570Average$789FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$588Average$868FlexibilityNo cancel feeOn-time69%
SWISSCheapest$597Average$912FlexibilityNo cancel feeOn-time79%
Air FranceCheapest$618Average$749FlexibilityNo cancel feeOn-time77%

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