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$259+ 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 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OTP
Jan 30 — Feb 61
Fri 1/30
Fri 2/6
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 31, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/29. 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 12/306:00 pmORD - TSR
1 stop12h 00mLufthansa
Wed 1/286:25 amTSR - ORD
2 stops22h 50mLufthansa
Deal found 12/29$669
This FlightHub deal was found by Cheapflights users on 12/29. 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.
Tue 12/306:00 pmORD - TSR
1 stop12h 00mMultiple Airlines
Wed 1/286:25 amTSR - ORD
2 stops23h 40mMultiple Airlines
Deal found 12/29$716
This Expedia deal was found by Cheapflights users on 12/30. 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.
Tue 12/306:50 pmORD - OTP
1 stop21h 40mMultiple Airlines
Thu 1/87:20 pmOTP - ORD
2 stops29h 40mMultiple Airlines
Deal found 12/30$716
This Kiwi.com deal was found by Cheapflights users on 12/30. 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 12/306:50 pmORD - OTP
1 stop12h 55mSWISS
Thu 1/84:40 pmOTP - ORD
1 stop28h 05mSWISS
Deal found 12/30$788
This FlightHub deal was found by Cheapflights users on 12/29. 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.
Tue 12/306:35 pmSTL - OTP
2 stops33h 45mLufthansa
Tue 1/67:25 pmOTP - STL
1 stop26h 30mLufthansa
Deal found 12/29$958
This Ovago deal was found by Cheapflights users on 12/29. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:35 pmSTL - SBZ
2 stops15h 40mLufthansa
Wed 1/72:30 pmSBZ - STL
2 stops52h 32mLufthansa
Deal found 12/29$1,153
This United Airlines deal was found by Cheapflights users on 12/29. 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.
Wed 12/319:00 amSTL - SBZ
2 stops25h 15mUnited Airlines
Wed 1/72:30 pmSBZ - STL
2 stops52h 32mUnited Airlines
Deal found 12/29$1,189
This United Airlines deal was found by Cheapflights users on 12/29. 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 12/305:02 pmSTL - SBZ
2 stops41h 13mUnited Airlines
Wed 1/72:30 pmSBZ - STL
2 stops52h 32mUnited Airlines
Deal found 12/29$1,195
This Gurufare deal was found by Cheapflights users on 12/29. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:00 pmORD - TSR
1 stop12h 00mLufthansa
Mon 1/52:40 pmTSR - ORD
2 stops28h 05mLufthansa
Deal found 12/29$1,219
This United Airlines deal was found by Cheapflights users on 12/28. 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 12/289:15 pmORD - SBZ
2 stops37h 00mUnited Airlines
Mon 1/56:00 amSBZ - ORD
2 stops37h 10mUnited Airlines
Deal found 12/28$1,252
This Cheapflightsfares deal was found by Cheapflights users on 12/29. 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.
Tue 12/301:24 pmORD - OTP
2 stops15h 06mAustrian Airlines
Thu 1/81:20 pmOTP - ORD
2 stops31h 25mAustrian Airlines
Deal found 12/29$1,462
This Arangrant deal was found by Cheapflights users on 12/29. 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 Arangrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/309:05 pmORD - OTP
2 stops31h 15mLufthansa
Thu 1/82:45 pmOTP - ORD
1 stop30h 25mLufthansa
Deal found 12/29$1,465

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 31, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$511
(Kiwi.com)

One-way from

$259
(Trip.com)

Popular in

June

Cheapest in

October

Average price

$1,017

Good round-trip deal

$811 or less

Good one-way deal

$218 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. 25% potential increase in price ($271 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($28 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
Price to beat on a one-way 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 31, 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

Fri 2/13

9:55 pm-5:35 pm

1 stop11h 40m

Cluj Napoca

Fri 2/20

6:00 pm-8:00 pm

1 stop34h 00m

$511

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Mon 2/9

9:55 pm-1:15 pm

1 stop31h 20m

Cluj Napoca

Wed 3/25

1:55 pm-9:00 pm

1 stop14h 05m

$514

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Sat 1/17

3:55 pm-1:40 pm

2 stops13h 45m

Cluj Napoca

Tue 2/3

6:00 am-6:25 pm

1 stop20h 25m

$522

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Sat 1/17

9:50 pm-12:50 am

1 stop19h 00m

Cluj Napoca

Tue 2/3

6:00 am-6:25 pm

1 stop20h 25m

$526

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Mon 2/9

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

Thu 3/26

6:00 am-3:10 pm

1 stop16h 10m

$528

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Wed 3/4

9:50 pm-12:55 am

1 stop19h 05m

Cluj Napoca

Tue 3/31

1:50 pm-10:08 am

2 stops28h 18m

$532

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Mon 4/13

4:05 pm-4:20 pm

2 stops16h 15m

Bucharest Otopeni Intl

Fri 4/24

6:05 am-1:25 pm

1 stop15h 20m

$533

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Sun 3/1

9:50 pm-12:55 am

1 stop19h 05m

Cluj Napoca

Sun 3/8

6:00 am-9:04 pm

2 stops23h 04m

$535

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Tue 2/10

11:15 am-1:40 pm

2 stops18h 25m

Cluj Napoca

Thu 3/26

6:00 am-3:10 pm

1 stop16h 10m

$536

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Wed 3/11

10:50 am-1:40 pm

2 stops19h 50m

Cluj Napoca

Tue 4/7

1:50 pm-6:15 pm

1 stop12h 25m

$536

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/31

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 $334). Flying from Illinois to Romania in June is currently the most expensive (average of $759). 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.

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 $511, 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.

  • 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 $334). Flying from Illinois to Romania in June is currently the most expensive (average of $759). 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 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$385Average$695FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$504Average$666FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$517Average$748FlexibilityNo cancel feeOn-time78%
LOTCheapest$562Average$948FlexibilityNo cancel feeOn-time81%
LufthansaCheapest$565Average$939FlexibilityNo cancel feeOn-time76%
KLMCheapest$568Average$891FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$569Average$749FlexibilityNo cancel feeOn-time77%
DeltaCheapest$575Average$992FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$577Average$799FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$595Average$872FlexibilityNo cancel feeOn-time69%

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