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$261+ 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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OTP
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
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 13, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/149:50 pmORD - CLJ
1 stop19h 05mLufthansa
Wed 12/106:00 amCLJ - ORD
1 stop20h 25mLufthansa
Deal found 11/11$486
This Mytrip deal was found by Cheapflights users on 11/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1712:50 pmORD - CLJ
2 stops16h 50mMultiple Airlines
Fri 12/126:00 amCLJ - ORD
1 stop20h 25mMultiple Airlines
Deal found 11/11$505
This Mytrip deal was found by Cheapflights users on 11/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1712:50 pmORD - CLJ
2 stops16h 50mMultiple Airlines
Tue 12/166:00 amCLJ - ORD
1 stop20h 25mMultiple Airlines
Deal found 11/12$509
This CrystalTravel deal was found by Cheapflights users on 11/12. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/149:50 pmORD - CLJ
1 stop19h 05mLufthansa
Mon 12/156:00 amCLJ - ORD
1 stop20h 25mLufthansa
Deal found 11/12$512
This FlightHub deal was found by Cheapflights users on 11/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/49:55 pmORD - CLJ
1 stop31h 20mLOT
Sun 12/141:35 pmCLJ - ORD
1 stop14h 25mLOT
Deal found 11/11$515
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/166:50 pmORD - CLJ
1 stop11h 50mSWISS
Mon 12/153:25 pmCLJ - ORD
1 stop32h 55mSWISS
Deal found 11/11$516
This Cheapflightsfares deal was found by Cheapflights users on 11/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/179:50 pmORD - CLJ
1 stop19h 05mLufthansa
Tue 12/166:00 amCLJ - ORD
1 stop20h 25mLufthansa
Deal found 11/12$520
This Mytrip deal was found by Cheapflights users on 11/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/168:15 pmORD - CLJ
2 stops33h 25mMultiple Airlines
Sun 12/143:15 pmCLJ - ORD
1 stop33h 05mMultiple Airlines
Deal found 11/11$522
This Booking.com deal was found by Cheapflights users on 11/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/149:50 pmORD - CLJ
1 stop19h 05mLufthansa
Sat 12/136:00 amCLJ - ORD
1 stop20h 25mLufthansa
Deal found 11/12$523
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:50 pmORD - OTP
1 stop21h 35mSWISS
Wed 1/144:35 pmOTP - ORD
1 stop31h 45mSWISS
Deal found 11/12$529
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1410:35 pmORD - OTP
1 stop17h 15mLufthansa
Thu 11/272:45 pmOTP - ORD
1 stop13h 20mLufthansa
Deal found 11/11$530
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/114:20 pmORD - OTP
1 stop13h 35mLufthansa
Sun 11/235:55 amOTP - ORD
1 stop15h 15mLufthansa
Deal found 11/11$532

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 13, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$509
(FlightHub)

One-way from

$261
(Kiwi.com)

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 13, 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

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Thu 12/4

9:55 pm-1:15 pm

1 stop31h 20m

Cluj Napoca

Sun 12/14

1:35 pm-7:55 pm

2 stops38h 20m

$525

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Mon 2/9

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

Thu 2/19

6:00 am-2:10 pm

1 stop16h 10m

$529

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Sat 2/7

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

Sun 2/15

6:00 am-2:10 pm

1 stop16h 10m

$529

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Mon 2/9

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

Mon 2/16

6:00 am-2:10 pm

1 stop16h 10m

$529

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Thu 2/5

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

Mon 2/16

6:00 am-2:10 pm

1 stop16h 10m

$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

$529

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Thu 2/5

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

Sat 2/21

6:00 am-2:10 pm

1 stop16h 10m

$529

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Wed 1/7

6:40 pm-1:05 am

2 stops22h 25m

Bucharest Otopeni Intl

Wed 1/21

6:05 am-1:55 pm

1 stop15h 50m

$530

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Sun 2/8

9:50 pm-12:55 am

1 stop19h 05m

Cluj Napoca

Thu 2/19

6:00 am-6:25 pm

1 stop20h 25m

$531

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Mon 2/9

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

Fri 2/20

6:00 am-6:25 pm

1 stop20h 25m

$531

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

Showing 1-10 of 60 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 $826). 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 13, 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 $529, LOT can have you in Romania from Illinois in 11h 40m. Airlines will cover a distance of 5008 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $826). 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 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$385Average$728FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$503Average$692FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$517Average$812FlexibilityNo cancel feeOn-time78%
LOTCheapest$538Average$941FlexibilityNo cancel feeOn-time81%
LufthansaCheapest$569Average$973FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$575Average$760FlexibilityNo cancel feeOn-time70%
SWISSCheapest$587Average$857FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$588Average$865FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$618Average$749FlexibilityNo cancel feeOn-time77%
Air SerbiaCheapest$655Average$714FlexibilityNo cancel feeOn-timeN/A

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