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$224+ 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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OTP
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
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 February 4, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/29:50 pm
ORD
-
CLJ
1 stop19h 05m
Lufthansa
Mon 3/166:00 am
CLJ
-
ORD
1 stop20h 25m
Lufthansa
Deal found 2/2$482
This CrystalTravel deal was found by Cheapflights users on 2/2. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/43:35 pm
ORD
-
CLJ
1 stop13h 35m
Lufthansa
Wed 5/131:50 pm
CLJ
-
ORD
1 stop12h 25m
Lufthansa
Deal found 2/2$495
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Wed 8/57:05 pm
ORD
-
OTP
1 stop12h 15m
SWISS
Wed 8/194:10 pm
OTP
-
ORD
1 stop28h 25m
SWISS
Deal found 2/2$504
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Tue 4/149:50 pm
ORD
-
CLJ
1 stop11h 40m
LOT
Thu 4/302:00 pm
CLJ
-
ORD
1 stop13h 50m
LOT
Deal found 2/2$509
This Gotogate deal was found by Cheapflights users on 2/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/69:40 pm
ORD
-
OTP
1 stop19h 30m
Lufthansa
Wed 5/131:45 pm
OTP
-
ORD
1 stop14h 10m
Lufthansa
Deal found 2/2$510
This Justfly.com deal was found by Cheapflights users on 2/3. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1611:25 am
ORD
-
CLJ
1 stop13h 40m
Turkish Airlines
Thu 4/309:55 am
CLJ
-
ORD
1 stop31h 45m
Turkish Airlines
Deal found 2/3$511
This FlightHub deal was found by Cheapflights users on 2/3. 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.
Thu 2/1911:50 am
ORD
-
CLJ
1 stop13h 10m
Turkish Airlines
Fri 2/279:50 am
CLJ
-
ORD
1 stop32h 15m
Turkish Airlines
Deal found 2/3$513
This FlightHub deal was found by Cheapflights users on 2/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/511:50 am
ORD
-
CLJ
1 stop13h 10m
Turkish Airlines
Mon 3/169:50 am
CLJ
-
ORD
1 stop32h 15m
Turkish Airlines
Deal found 2/2$514
This FlightHub deal was found by Cheapflights users on 2/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/159:50 pm
ORD
-
CLJ
1 stop31h 30m
LOT
Wed 4/296:10 pm
CLJ
-
ORD
1 stop33h 40m
LOT
Deal found 2/2$516
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Wed 3/2510:50 pm
ORD
-
OTP
1 stop12h 45m
Lufthansa
Wed 4/86:05 am
OTP
-
ORD
1 stop14h 50m
Lufthansa
Deal found 2/2$517
This Justfly.com deal was found by Cheapflights users on 2/3. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1711:25 am
ORD
-
OTP
1 stop24h 50m
Turkish Airlines
Mon 9/149:30 am
OTP
-
ORD
1 stop20h 35m
Turkish Airlines
Deal found 2/3$518
This FlightHub deal was found by Cheapflights users on 2/3. 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 10/511:50 pm
ORD
-
OTP
1 stop30h 45m
Turkish Airlines
Sun 10/189:35 pm
OTP
-
ORD
1 stop32h 30m
Turkish Airlines
Deal found 2/3$519

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 February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$482
(Kiwi.com)

One-way from

$224
(British Airways)

Popular in

June

Cheapest in

October

Average price

$583

Good round-trip deal

$844 or less

Good one-way deal

$419 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 ($260 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 February 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 February 4, 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

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 2/15

9:50 pm-6:35 pm

1 stop12h 45m

Bucharest Otopeni Intl

Tue 3/3

5:55 am-1:25 pm

1 stop15h 30m

$525

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Wed 4/22

8:10 pm-8:15 pm

1 stop16h 05m

Cluj Napoca

Fri 5/1

9:05 pm-9:40 am

1 stop20h 35m

$528

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Mon 2/23

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

Thu 3/5

6:00 am-6:25 pm

1 stop20h 25m

$534

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Mon 2/23

6:00 pm-1:40 pm

1 stop11h 40m

Cluj Napoca

Sun 3/8

6:00 am-6:25 pm

1 stop20h 25m

$534

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Fri 5/8

8:10 pm-8:15 pm

1 stop16h 05m

Bucharest Otopeni Intl

Fri 5/15

9:30 am-6:15 pm

1 stop16h 45m

$535

ChicagoSibiu

ORD - SBZ

ORDSBZ

Chicago O'Hare Intl

Mon 3/16

8:40 pm-1:45 pm

2 stops34h 05m

Sibiu

Tue 3/24

7:00 pm-11:18 am

2 stops47h 18m

$537

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Mon 4/13

6:00 am-1:10 pm

2 stops23h 10m

Cluj Napoca

Tue 4/28

1:50 pm-6:15 pm

1 stop12h 25m

$538

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Sat 4/4

4:20 pm-5:25 pm

2 stops17h 05m

Cluj Napoca

Mon 4/13

1:50 pm-6:15 pm

1 stop12h 25m

$538

ChicagoCluj Napoca

ORD - CLJ

ORDCLJ

Chicago O'Hare Intl

Fri 4/17

7:05 am-5:25 pm

2 stops26h 20m

Cluj Napoca

Fri 4/24

1:50 pm-6:15 pm

1 stop12h 25m

$538

St. LouisBucharest

STL - OTP

STLOTP

Lambert-St Louis

Mon 3/2

6:55 pm-1:05 am

2 stops22h 10m

Bucharest Otopeni Intl

Mon 3/9

6:05 am-10:59 pm

2 stops23h 54m

$542

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

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 $534, Lufthansa 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 $251 and $270 on Austrian Airlines and KLM, 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 February 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$326Average$579FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$503Average$675FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$517Average$681FlexibilityNo cancel feeOn-time78%
KLMCheapest$541Average$887FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$553Average$803FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$558Average$918FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$569Average$749FlexibilityNo cancel feeOn-time77%
LOTCheapest$572Average$944FlexibilityNo cancel feeOn-time81%
DeltaCheapest$575Average$992FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$578Average$921FlexibilityNo cancel feeOn-time69%

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