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$200+ Cheap flights from Illinois to Bucharest (BUH)

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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BUH
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Illinois to Bucharest

Keep the following information in mind while searching for Illinois to Bucharest flight deals. Data was last updated September 17, 2025.

Round-trip from

$530
(LOT)

One-way from

$200
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$663
From Illinois to Bucharest (BUH)
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One-way flight from Illinois to Bucharest (BUH)
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Highest demand for flights based on searches. 27% potential increase in price ($295 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Illinois to Bucharest

Cheapest flights from Illinois to Bucharest
Explore the most affordable flight options available from Illinois to Bucharest. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This LOT deal was found by Cheapflights users on 9/15. 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 LOT is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/29:55 pmORD - OTP
1 stop17h 20mLOT
Tue 12/168:20 amOTP - ORD
1 stop19h 40mLOT
Deal found 9/15$530
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Wed 12/36:50 pmORD - OTP
1 stop13h 00mMultiple Airlines
Wed 12/171:05 pmOTP - ORD
1 stop13h 20mMultiple Airlines
Deal found 9/15$532
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 11/41:00 pmORD - OTP
2 stops15h 30mMultiple Airlines
Tue 11/186:30 amOTP - ORD
1 stop17h 50mMultiple Airlines
Deal found 9/15$533
This oojo deal was found by Cheapflights users on 9/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/99:40 pmORD - OTP
1 stop12h 05mLOT
Mon 11/248:20 amOTP - ORD
2 stops19h 35mLOT
Deal found 9/15$534
This CrystalTravel deal was found by Cheapflights users on 9/15. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/135:10 pmORD - OTP
1 stop24h 40mLOT
Mon 10/202:35 pmOTP - ORD
1 stop13h 05mLOT
Deal found 9/15$535
This British Airways deal was found by Cheapflights users on 9/15. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/305:10 pmORD - OTP
1 stop18h 25mBritish Airways
Wed 12/178:05 amOTP - ORD
1 stop18h 40mBritish Airways
Deal found 9/15$541
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Mon 12/14:20 pmORD - OTP
1 stop12h 10mMultiple Airlines
Mon 12/151:05 pmOTP - ORD
1 stop13h 20mMultiple Airlines
Deal found 9/15$544
This LOT deal was found by Cheapflights users on 9/15. 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 LOT is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/79:40 pmORD - OTP
1 stop32h 10mLOT
Tue 11/252:35 pmOTP - ORD
1 stop13h 25mLOT
Deal found 9/15$546
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Sat 11/299:55 pmORD - OTP
1 stop11h 45mLOT
Tue 12/168:20 amOTP - ORD
1 stop19h 40mLOT
Deal found 9/15$547
This Mytrip deal was found by Cheapflights users on 9/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/317:50 pmORD - OTP
1 stop21h 40mMultiple Airlines
Fri 11/75:55 amOTP - ORD
2 stops17h 00mMultiple Airlines
Deal found 9/16$548
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 12/26:50 pmORD - OTP
1 stop12h 55mMultiple Airlines
Mon 12/151:05 pmOTP - ORD
1 stop13h 20mMultiple Airlines
Deal found 9/15$549
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/163:50 pmSTL - OTP
1 stop14h 15mLufthansa
Wed 11/266:05 amOTP - STL
1 stop15h 50mLufthansa
Deal found 9/16$575

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Bucharest 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 September 17, 2025.
Use the filters below to find and compare flights from Illinois to Bucharest that are best for you.

Fly from

Illinois

Fly to

Bucharest

Route

Depart

Return

Price

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 12/1

9:45 pm-11:00 pm

1 stop17h 15m

Bucharest Otopeni Intl

Fri 12/19

8:00 am-6:45 pm

1 stop18h 45m

$541

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Tue 12/2

5:10 pm-10:55 pm

1 stop21h 45m

Bucharest Otopeni Intl

Thu 12/18

8:00 am-6:45 pm

1 stop18h 45m

$541

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 11/30

5:10 pm-2:55 pm

1 stop13h 45m

Bucharest Otopeni Intl

Tue 12/16

8:00 am-6:45 pm

1 stop18h 45m

$541

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Fri 10/31

7:50 pm-12:30 am

1 stop21h 40m

Bucharest Otopeni Intl

Fri 11/7

5:55 am-2:55 pm

2 stops17h 00m

$548

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 11/10

6:50 pm-3:50 pm

1 stop13h 00m

Bucharest Otopeni Intl

Tue 12/2

5:55 am-2:55 pm

2 stops17h 00m

$553

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 12/1

5:10 pm-11:00 pm

1 stop21h 50m

Bucharest Otopeni Intl

Wed 12/17

8:05 am-6:45 pm

1 stop18h 40m

$553

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 11/30

5:10 pm-2:55 pm

1 stop13h 45m

Bucharest Otopeni Intl

Sun 12/14

7:35 am-1:50 pm

1 stop14h 15m

$556

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 11/30

5:10 pm-2:55 pm

1 stop13h 45m

Bucharest Otopeni Intl

Sat 12/13

8:05 am-6:45 pm

1 stop18h 40m

$556

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 12/3

1:05 pm-2:00 pm

2 stops16h 55m

Bucharest Otopeni Intl

Thu 12/18

5:50 am-8:05 pm

1 stop22h 15m

$560

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Tue 11/4

10:40 am-1:55 pm

2 stops19h 15m

Bucharest Otopeni Intl

Tue 11/18

5:55 am-2:55 pm

2 stops17h 00m

$564

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 53 results
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Best time to book a flight from Illinois to Bucharest

Have a flexible travel schedule? Discover the best time to fly to Bucharest 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 Bucharest

What is the cheapest month to book a flight from Illinois to Bucharest?

Currently, November is the cheapest month in which you can book a flight from Illinois to Bucharest (average of $604). Flying from Illinois to Bucharest in June is currently the most expensive (average of $1,132). 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 BUH?

Find hourly flight availability from Illinois to Bucharest. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Bucharest as you normally would.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Bucharest. 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 Bucharest?

    British Airways, United Airlines, and Delta can get you from Illinois to Bucharest in just under 17h 15m. Your travel time can differ by up to 3h 03m. There are 5198 mi between Illinois and Bucharest. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most popular routes from Illinois to Bucharest?

    While some choose either Chicago Midway - Bucharest Otopeni Intl or Lambert-St Louis - Bucharest Otopeni Intl, Chicago O'Hare Intl - Bucharest Otopeni Intl is the most popular route from Illinois to Bucharest.

  • Can I find deals for flights from Illinois to Bucharest that include hotel bookings?

    Yes. In addition to deals on Illinois to Bucharest flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Bucharest?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Bucharest.

  • Can I find deals for business class flights from Illinois to Bucharest?

    Yes. Cheapflights offers flight deals from Illinois to Bucharest 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 Bucharest?

    Currently, November is the cheapest month in which you can book a flight from Illinois to Bucharest (average of $604). Flying from Illinois to Bucharest in June is currently the most expensive (average of $1,132). 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

Traveling to a place near Bucharest?

Book flights to Bucharest if you plan to visit one of these locations
Otopeni

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Alternative routes for Illinois to Bucharest

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 Bucharest

Discover the top 10 airlines that operate flights from Illinois to Bucharest. 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$385Average$728FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$503Average$594FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$517Average$638FlexibilityNo cancel feeOn-time78%
LufthansaCheapest$534Average$893FlexibilityNo cancel feeOn-time76%
LOTCheapest$538Average$892FlexibilityNo cancel feeOn-time81%
British AirwaysCheapest$544Average$728FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$580Average$749FlexibilityNo cancel feeOn-time77%
KLMCheapest$582Average$987FlexibilityNo cancel feeOn-time75%
SWISSCheapest$587Average$755FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$588Average$882FlexibilityNo cancel feeOn-time69%

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