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$183+ 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 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OTP
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
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 January 20, 2026.

This Booking.com deal was found by Cheapflights users on 1/19. 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.
Tue 4/74:20 pm
ORD
-
IAS
1 stop15h 00m
Austrian Airlines
Thu 4/304:00 pm
IAS
-
ORD
1 stop29h 20m
Austrian Airlines
Deal found 1/19$510
This FlightHub deal was found by Cheapflights users on 1/19. 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 4/71:00 pm
ORD
-
IAS
2 stops18h 20m
Multiple Airlines
Thu 4/304:00 pm
IAS
-
ORD
2 stops35h 55m
Multiple Airlines
Deal found 1/19$516
This United Airlines deal was found by Cheapflights users on 1/19. 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.
Fri 2/134:20 pm
ORD
-
OTP
1 stop12h 10m
United Airlines
Tue 2/247:10 pm
OTP
-
ORD
1 stop26h 50m
United Airlines
Deal found 1/19$522
This United Airlines deal was found by Cheapflights users on 1/17. 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.
Fri 1/308:58 pm
ORD
-
CLJ
2 stops32h 42m
United Airlines
Fri 2/276:00 am
CLJ
-
ORD
1 stop16h 10m
United Airlines
Deal found 1/17$524
This KAYAK deal was found by Cheapflights users on 1/19. 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.
Wed 2/119:50 pm
ORD
-
OTP
1 stop19h 15m
Lufthansa
Sat 2/281:05 pm
OTP
-
ORD
1 stop13h 20m
Lufthansa
Deal found 1/19$524
This American Airlines deal was found by Cheapflights users on 1/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/269:00 pm
ORD
-
OTP
2 stops18h 00m
American Airlines
Sun 2/17:35 am
OTP
-
ORD
2 stops20h 40m
American Airlines
Deal found 1/18$525
This United Airlines deal was found by Cheapflights users on 1/19. 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 3/47:30 am
ORD
-
CLJ
2 stops22h 10m
United Airlines
Sun 3/86:00 am
CLJ
-
ORD
1 stop20h 25m
United Airlines
Deal found 1/19$526
This KAYAK deal was found by Cheapflights users on 1/20. 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.
Sun 11/226:50 pm
ORD
-
OTP
1 stop21h 40m
SWISS
Tue 12/16:30 am
OTP
-
ORD
1 stop17h 50m
SWISS
Deal found 1/20$526
This Booking.com deal was found by Cheapflights users on 1/18. 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 8/152:20 pm
ORD
-
OTP
1 stop17h 00m
Multiple Airlines
Sat 8/227:20 pm
OTP
-
ORD
1 stop25h 10m
Multiple Airlines
Deal found 1/18$527
This KAYAK deal was found by Cheapflights users on 1/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/306:15 pm
ORD
-
CLJ
2 stops35h 25m
Lufthansa
Thu 2/266:00 am
CLJ
-
ORD
1 stop20h 25m
Lufthansa
Deal found 1/17$529
This United Airlines deal was found by Cheapflights users on 1/20. 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 11/215:55 pm
ORD
-
OTP
2 stops40h 45m
United Airlines
Wed 12/27:10 pm
OTP
-
ORD
2 stops44h 13m
United Airlines
Deal found 1/20$529
This United Airlines deal was found by Cheapflights users on 1/19. 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 4/169:40 pm
ORD
-
CLJ
1 stop11h 45m
United Airlines
Thu 4/306:00 am
CLJ
-
ORD
2 stops21h 55m
United Airlines
Deal found 1/19$530

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 January 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$510
(Booking.com)

One-way from

$183
(oojo)

Popular in

June

Cheapest in

October

Average price

$626

Good round-trip deal

$836 or less

Good one-way deal

$429 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 ($262 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 20, 2026.
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

ChicagoIaşi

ORD - IAS

ORDIAS

Chicago O'Hare Intl

Tue 4/7

1:00 pm-3:20 pm

2 stops18h 20m

Iasi

Thu 4/30

4:00 pm-1:20 pm

1 stop29h 20m

$510

ChicagoIaşi

ORD - IAS

ORDIAS

Chicago O'Hare Intl

Tue 4/7

1:00 pm-3:20 pm

2 stops18h 20m

Iasi

Thu 4/30

4:00 pm-7:55 pm

2 stops35h 55m

$516

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Fri 2/13

4:20 pm-12:30 pm

1 stop12h 10m

Bucharest Otopeni Intl

Tue 2/24

7:10 pm-2:00 pm

1 stop26h 50m

$522

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Fri 1/30

8:58 pm-1:40 pm

2 stops32h 42m

Cluj Napoca

Fri 2/27

6:00 am-2:10 pm

1 stop16h 10m

$524

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Wed 3/4

11:05 am-1:40 pm

2 stops18h 35m

Cluj Napoca

Sun 3/8

6:00 am-6:25 pm

1 stop20h 25m

$526

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Fri 1/30

8:58 pm-1:40 pm

2 stops32h 42m

Cluj Napoca

Thu 2/26

6:00 am-7:55 am

2 stops33h 55m

$528

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Thu 4/16

9:40 pm-5:25 pm

1 stop11h 45m

Cluj Napoca

Thu 4/30

6:00 am-7:55 pm

2 stops21h 55m

$530

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 3/26

7:15 am-6:40 pm

2 stops28h 25m

Bucharest Otopeni Intl

Mon 4/6

6:55 pm-1:20 pm

1 stop26h 25m

$532

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 3/12

12:50 pm-2:10 pm

1 stop18h 20m

Bucharest Otopeni Intl

Sun 3/22

9:50 pm-11:05 am

1 stop20h 15m

$542

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 3/26

6:54 pm-7:30 pm

2 stops17h 36m

Bucharest Otopeni Intl

Mon 4/6

3:40 pm-6:15 pm

1 stop34h 35m

$547

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

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 $332). 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 $522, Austrian Airlines can have you in Romania from Illinois in 12h 10m. Airlines will cover a distance of 5198 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 $332). 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

Browse thousands of different options on Cheapflights for your next trip

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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 January 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$326Average$622FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$503Average$665FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$517Average$681FlexibilityNo cancel feeOn-time78%
KLMCheapest$541Average$888FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$558Average$907FlexibilityNo cancel feeOn-time76%
LOTCheapest$562Average$1,023FlexibilityNo cancel feeOn-time81%
Air FranceCheapest$569Average$749FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$570Average$804FlexibilityNo cancel feeOn-time70%
DeltaCheapest$575Average$992FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$586Average$943FlexibilityNo cancel feeOn-time79%

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