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$246+ 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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OTP
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Cheap 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 December 4, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/2. 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 12/296:10 pmORD - OTP
2 stops37h 35mSWISS
Sat 2/286:30 amOTP - ORD
1 stop17h 50mSWISS
Deal found 12/2$525
This FlightHub deal was found by Cheapflights users on 12/3. 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.
Mon 12/296:00 pmORD - OTP
1 stop16h 35mLufthansa
Wed 2/256:05 amOTP - ORD
1 stop15h 20mLufthansa
Deal found 12/3$528
This KAYAK deal was found by Cheapflights users on 12/3. 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 KAYAK 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 12/3$532
This Expedia deal was found by Cheapflights users on 12/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/49:05 pmORD - CLJ
2 stops57h 25mMultiple Airlines
Tue 12/166:00 amCLJ - ORD
1 stop16h 10mMultiple Airlines
Deal found 12/3$538
This KAYAK deal was found by Cheapflights users on 12/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/99:05 pmORD - CLJ
2 stops29h 00mSWISS
Sun 1/183:15 pmCLJ - ORD
1 stop33h 05mSWISS
Deal found 12/3$540
This oojo deal was found by Cheapflights users on 12/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/298:43 pmORD - OTP
2 stops42h 12mBritish Airways
Wed 2/258:05 amOTP - ORD
2 stops31h 18mBritish Airways
Deal found 12/3$540
This United Airlines deal was found by Cheapflights users on 12/3. 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 12/296:00 pmORD - OTP
1 stop16h 35mUnited Airlines
Wed 2/256:05 amOTP - ORD
2 stops24h 59mUnited Airlines
Deal found 12/3$541
This United Airlines deal was found by Cheapflights users on 12/3. 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.
Thu 12/42:21 pmORD - CLJ
2 stops39h 19mUnited Airlines
Fri 12/122:25 pmCLJ - ORD
2 stops25h 35mUnited Airlines
Deal found 12/3$548
This Kiwi.com deal was found by Cheapflights users on 12/1. 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 12/34:10 pmORD - OTP
1 stop24h 15mSWISS
Sun 3/14:40 pmOTP - ORD
1 stop31h 40mSWISS
Deal found 12/1$548
This Kiwi.com deal was found by Cheapflights users on 12/4. 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 12/56:50 pmORD - OTP
1 stop21h 40mSWISS
Wed 12/246:30 amOTP - ORD
1 stop17h 50mSWISS
Deal found 12/4$549
This KAYAK deal was found by Cheapflights users on 12/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/55:50 pmORD - CLJ
2 stops36h 40mMultiple Airlines
Tue 12/166:00 amCLJ - ORD
1 stop16h 10mMultiple Airlines
Deal found 12/3$555
This Mytrip deal was found by Cheapflights users on 12/1. 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.
Wed 12/312:50 pmORD - OTP
2 stops17h 10mMultiple Airlines
Sun 3/12:50 pmOTP - ORD
1 stop13h 15mMultiple Airlines
Deal found 12/1$555

Find flight deals from Illinois to Romania

Keep the following information in mind while searching for Illinois to Romania flight deals. Data was last updated December 4, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$493
(Kiwi.com)

One-way from

$246
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$611

Good round-trip deal

$854 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 December 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 December 4, 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

Mon 1/12

9:55 pm-1:15 pm

1 stop31h 20m

Cluj Napoca

Sun 1/25

1:35 pm-8:00 pm

1 stop14h 25m

$493

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Wed 1/14

7:10 am-10:50 pm

2 stops31h 40m

Bucharest Otopeni Intl

Thu 1/22

1:55 pm-4:39 pm

2 stops34h 44m

$519

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Sun 1/18

1:05 pm-10:50 pm

2 stops25h 45m

Bucharest Otopeni Intl

Tue 1/27

6:00 am-8:37 pm

2 stops22h 37m

$519

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Tue 1/20

6:25 am-12:05 pm

2 stops21h 40m

Bucharest Otopeni Intl

Tue 1/27

6:00 am-11:37 pm

2 stops25h 37m

$519

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Mon 1/19

9:45 am-12:05 pm

2 stops18h 20m

Bucharest Otopeni Intl

Tue 1/27

6:00 am-11:37 pm

2 stops25h 37m

$519

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Tue 1/20

1:18 pm-10:50 pm

2 stops25h 32m

Bucharest Otopeni Intl

Mon 1/26

1:55 pm-8:43 pm

2 stops38h 48m

$519

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Wed 1/14

11:22 am-2:00 pm

2 stops18h 38m

Bucharest Otopeni Intl

Wed 1/21

6:05 am-1:55 pm

1 stop15h 50m

$520

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Wed 1/14

3:50 pm-2:00 pm

1 stop14h 10m

Bucharest Otopeni Intl

Tue 1/27

5:55 am-3:29 pm

2 stops41h 34m

$522

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Sun 1/18

3:50 pm-2:05 pm

1 stop14h 15m

Bucharest Otopeni Intl

Tue 1/27

5:55 am-3:29 pm

2 stops41h 34m

$522

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Sat 1/17

3:40 pm-10:50 pm

2 stops47h 10m

Bucharest Otopeni Intl

Tue 1/27

1:55 pm-11:37 pm

2 stops17h 42m

$524

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

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 $755). 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 December 4, 2025.

It’s typically best to fly out from Illinois to Romania at noon. Doing so could potentially save you 10% 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. Thursday afternoons 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 20h 50m. Airlines will cover a distance of 5008 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 Turkish Airlines. According to our data, you can fly for as low as $236. Users have also found prices from $376 and $394 on SWISS and Lufthansa, 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 $755). 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 Illinois to Romania

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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$385Average$715FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$503Average$693FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$517Average$776FlexibilityNo cancel feeOn-time78%
LOTCheapest$538Average$932FlexibilityNo cancel feeOn-time81%
KLMCheapest$568Average$894FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$570Average$968FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$575Average$792FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$588Average$868FlexibilityNo cancel feeOn-time69%
SWISSCheapest$597Average$915FlexibilityNo cancel feeOn-time79%
Air FranceCheapest$618Average$749FlexibilityNo cancel feeOn-time77%

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