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$234+ 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 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — OTP
Jun 19 — Jun 261
Fri 6/19
Fri 6/26
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 May 20, 2026.

This Kiwi.com deal was found by Cheapflights users on 5/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/189:50 pm
ORD
-
OTP
1 stop17h 25m
LOT
Sun 11/12:35 pm
OTP
-
ORD
1 stop13h 25m
LOT
Deal found 5/17$676
This Air Serbia deal was found by Cheapflights users on 5/16. 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 Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/174:40 pm
ORD
-
OTP
1 stop14h 40m
Air Serbia
Mon 9/144:30 am
OTP
-
ORD
1 stop18h 00m
Air Serbia
Deal found 5/16$680
This Air Serbia deal was found by Cheapflights users on 5/18. 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 Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1511:20 pm
ORD
-
OTP
1 stop19h 45m
Air Serbia
Sat 9/124:05 pm
OTP
-
ORD
1 stop13h 10m
Air Serbia
Deal found 5/18$701
This Air Serbia deal was found by Cheapflights users on 5/15. 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 Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/124:40 pm
ORD
-
OTP
1 stop26h 25m
Air Serbia
Sat 9/54:05 pm
OTP
-
ORD
1 stop13h 10m
Air Serbia
Deal found 5/15$702
This Air Serbia deal was found by Cheapflights users on 5/17. 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 Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1511:20 pm
ORD
-
OTP
1 stop19h 45m
Air Serbia
Mon 8/314:30 am
OTP
-
ORD
1 stop18h 00m
Air Serbia
Deal found 5/17$705
This Air Serbia deal was found by Cheapflights users on 5/18. 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 Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/174:40 pm
ORD
-
OTP
1 stop14h 40m
Air Serbia
Sun 9/134:05 pm
OTP
-
ORD
1 stop30h 25m
Air Serbia
Deal found 5/18$706
This Trip.com deal was found by Cheapflights users on 5/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/179:50 pm
ORD
-
OTP
1 stop17h 25m
LOT
Sat 10/316:25 pm
OTP
-
ORD
1 stop33h 35m
LOT
Deal found 5/16$710
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 10/139:50 pm
ORD
-
OTP
1 stop20h 00m
LOT
Tue 10/272:35 pm
OTP
-
ORD
1 stop13h 25m
LOT
Deal found 5/15$711
This Cheapflightsfares deal was found by Cheapflights users on 5/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/199:50 pm
ORD
-
OTP
1 stop17h 25m
LOT
Mon 8/312:35 pm
OTP
-
ORD
1 stop13h 15m
LOT
Deal found 5/17$712
This Gotogate deal was found by Cheapflights users on 5/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/209:40 pm
ORD
-
OTP
1 stop12h 55m
Lufthansa
Tue 11/32:35 pm
OTP
-
ORD
1 stop13h 30m
Lufthansa
Deal found 5/19$714
This Gotogate deal was found by Cheapflights users on 5/15. 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.
Tue 8/189:50 pm
ORD
-
OTP
1 stop20h 00m
LOT
Tue 9/15:35 am
OTP
-
ORD
1 stop17h 35m
LOT
Deal found 5/15$715
This Kiwi.com deal was found by Cheapflights users on 5/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/169:50 pm
ORD
-
OTP
1 stop11h 55m
LOT
Sun 8/306:30 pm
OTP
-
ORD
1 stop33h 20m
LOT
Deal found 5/17$716

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 May 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$676
(Kiwi.com)

One-way from

$234
(Lufthansa)

Popular in

May

Cheapest in

October

Average price

$1,142

Good round-trip deal

$857 or less

Good one-way deal

$444 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. 15% potential increase in price ($140 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 20, 2026.
Use the filters below to find and compare flights from Illinois to Romania that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 11/9

11:30 am-2:10 pm

2 stops18h 40m

Bucharest Otopeni Intl

Wed 11/18

6:00 am-2:25 pm

1 stop16h 25m

$734

ChicagoBucharest

MDW - OTP

MDWOTP

Chicago Midway

Mon 11/9

1:00 pm-2:10 pm

2 stops17h 10m

Bucharest Otopeni Intl

Wed 11/18

6:00 am-6:37 pm

2 stops20h 37m

$743

ChicagoTimisoara

ORD - TSR

ORDTSR

Chicago O'Hare Intl

Tue 9/1

2:01 pm-1:30 pm

2 stops15h 29m

Timisoara

Tue 9/22

2:10 pm-2:43 pm

2 stops32h 33m

$780

St. LouisCluj Napoca

STL - CLJ

STLCLJ

Lambert-St Louis

Wed 11/11

11:45 am-1:40 pm

2 stops17h 55m

Cluj Napoca

Fri 11/13

6:00 am-4:40 pm

2 stops18h 40m

$781
Quickest round-trip

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 8/16

5:10 pm-1:40 pm

1 stop12h 30m

Bucharest Otopeni Intl

Thu 9/10

7:05 am-2:15 pm

1 stop15h 10m

$782

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 8/16

5:10 pm-1:40 pm

1 stop12h 30m

Bucharest Otopeni Intl

Wed 9/9

2:00 pm-2:15 pm

1 stop32h 15m

$782

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 8/9

3:35 pm-12:00 pm

1 stop12h 25m

Bucharest Otopeni Intl

Sat 8/22

6:15 am-2:00 pm

1 stop15h 45m

$787

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 8/12

2:12 pm-1:40 pm

2 stops15h 28m

Bucharest Otopeni Intl

Wed 8/26

7:05 am-2:30 pm

1 stop15h 25m

$788

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sat 8/15

11:20 pm-3:05 am

1 stop19h 45m

Bucharest Otopeni Intl

Mon 8/31

4:30 am-2:30 pm

1 stop18h 00m

$789

ChicagoBucharest

MDW - OTP

MDWOTP

Chicago Midway

Wed 8/19

1:27 pm-1:40 pm

2 stops16h 13m

Bucharest Otopeni Intl

Wed 9/2

7:05 am-6:05 pm

2 stops19h 00m

$796

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/17

Showing 1-10 of 60 resultsSorted by cheapest first
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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, May is the cheapest month in which you can book a flight from Illinois to Romania (average of $280). Flying from Illinois to Romania in June is currently the most expensive (average of $1,265). 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.

How far ahead should I book a flight from Illinois to Romania?

To ensure you get the cheapest price possible for a flight from Illinois to Romania, you should look to book at least 67 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 $781, Delta can have you in Romania from Illinois in 17h 55m. Airlines will cover a distance of 5261 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 Lufthansa. According to our data, you can fly for as low as $233. 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, May is the cheapest month in which you can book a flight from Illinois to Romania (average of $280). Flying from Illinois to Romania in June is currently the most expensive (average of $1,265). 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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John F Kennedy Intl to Heathrow flights
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Los Angeles to Heathrow flights
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Newark to Barcelona-El Prat flights
John F Kennedy Intl to Barcelona-El Prat flights
John F Kennedy Intl to Madrid flights
John F Kennedy Intl to Lisbon flights
John F Kennedy Intl to Athens flights
San Francisco to Heathrow flights
Miami to Madrid flights
Los Angeles to Leonardo da Vinci/Fiumicino flights
Los Angeles to Charles de Gaulle flights
Dallas/Fort Worth to Heathrow flights
Newark to Malpensa flights
Boston to Charles de Gaulle flights
O'Hare Intl to Heathrow flights
Boston to Gatwick flights
Boston to Leonardo da Vinci/Fiumicino flights
John F Kennedy Intl to Frederic Chopin flights
Newark to Stansted flights
Dulles Intl to Charles de Gaulle flights
John F Kennedy Intl to Malpensa flights
O'Hare Intl to Leonardo da Vinci/Fiumicino flights
Seattle to Heathrow flights
Newark to Luton flights
Newark to Frankfurt flights

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 May 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$300Average$853FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$440Average$791FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$504Average$661FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$534Average$882FlexibilityNo cancel feeOn-time76%
Air SerbiaCheapest$537Average$747FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$539Average$788FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$569Average$735FlexibilityNo cancel feeOn-time77%
DeltaCheapest$575Average$1,013FlexibilityNo cancel feeOn-timeN/A
LOTCheapest$580Average$976FlexibilityNo cancel feeOn-time81%
SWISSCheapest$586Average$986FlexibilityNo cancel feeOn-time79%

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