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$353+ 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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BUH
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$567
(Scandinavian Airlines)

One-way from

$353
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$612
Provider with most accurate pricing for Chicago (CHI)-Bucharest (BUH) flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Bucharest (BUH) flights.
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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. 29% potential increase in price ($314 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 28, 2025.

This Scandinavian Airlines deal was found by Cheapflights users on 3/27. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/187:15 pmORD - OTP
1 stop17h 55mScandinavian Airlines
Sat 9/279:25 pmOTP - ORD
1 stop26h 45mScandinavian Airlines
Deal found 3/27$567
This oojo deal was found by Cheapflights users on 3/26. 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 7/3111:25 amORD - OTP
1 stop25h 00mTurkish Airlines
Fri 10/39:30 amOTP - ORD
1 stop32h 10mTurkish Airlines
Deal found 3/26$573
This Air Serbia deal was found by Cheapflights users on 3/27. 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 9/2711:20 pmORD - OTP
1 stop32h 00mAir Serbia
Wed 10/294:05 pmOTP - ORD
1 stop13h 05mAir Serbia
Deal found 3/27$596
This Kiwi.com deal was found by Cheapflights users on 3/27. 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.
Fri 3/288:05 pmORD - OTP
1 stop12h 45mSWISS
Mon 3/314:10 pmOTP - ORD
1 stop28h 00mSWISS
Deal found 3/27$599
This Kiwi.com deal was found by Cheapflights users on 3/27. 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.
Thu 3/278:05 pmORD - OTP
1 stop12h 45mMultiple Airlines
Sun 4/64:05 pmOTP - ORD
1 stop29h 15mMultiple Airlines
Deal found 3/27$606
This United Airlines deal was found by Cheapflights users on 3/27. 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 3/288:05 pmORD - OTP
1 stop12h 45mUnited Airlines
Mon 3/316:00 amOTP - ORD
2 stops37h 32mUnited Airlines
Deal found 3/27$616
This Delta deal was found by Cheapflights users on 3/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2810:35 amORD - OTP
2 stops20h 15mDelta
Fri 4/47:00 amOTP - ORD
1 stop15h 10mDelta
Deal found 3/27$631
This Priceline deal was found by Cheapflights users on 3/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/276:39 pmORD - OTP
2 stops16h 56mAir Canada
Sat 4/56:30 amOTP - ORD
2 stops19h 52mAir Canada
Deal found 3/27$635
This Delta deal was found by Cheapflights users on 3/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/291:12 pmMDW - OTP
2 stops20h 08mDelta
Tue 4/87:00 amOTP - MDW
2 stops15h 17mDelta
Deal found 3/27$640
This Austrian Airlines deal was found by Cheapflights users on 3/27. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/285:20 pmORD - OTP
1 stop12h 10mAustrian Airlines
Sun 4/66:55 pmOTP - ORD
1 stop26h 25mAustrian Airlines
Deal found 3/27$661
This Travelocity deal was found by Cheapflights users on 3/27. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2710:25 pmORD - OTP
1 stop13h 05mLufthansa
Mon 4/76:40 pmOTP - ORD
1 stop26h 15mLufthansa
Deal found 3/27$675
This oojo deal was found by Cheapflights users on 3/27. 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.
Wed 5/78:30 pmORD - OTP
1 stop15h 50mBritish Airways
Fri 11/78:05 amOTP - ORD
1 stop15h 20mBritish Airways
Deal found 3/27$702

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 March 28, 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

Thu 9/18

7:15 pm-9:10 pm

1 stop17h 55m

Bucharest Otopeni Intl

Sat 9/27

9:25 pm-4:10 pm

1 stop26h 45m

$567

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 7/31

11:25 am-8:25 pm

1 stop25h 00m

Bucharest Otopeni Intl

Fri 10/3

9:30 am-9:40 am

1 stop32h 10m

$573

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 9/24

4:30 pm-3:05 am

1 stop26h 35m

Bucharest Otopeni Intl

Sat 10/25

4:40 am-9:00 pm

1 stop24h 20m

$640

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 5/4

11:25 am-2:35 pm

1 stop19h 10m

Bucharest Otopeni Intl

Tue 5/20

10:55 am-7:27 am

2 stops28h 32m

$662

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 5/7

8:30 pm-8:20 pm

1 stop15h 50m

Bucharest Otopeni Intl

Fri 11/7

8:05 am-3:25 pm

1 stop15h 20m

$702

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Tue 7/29

9:40 pm-5:45 pm

1 stop12h 05m

Bucharest Otopeni Intl

Tue 1/13

6:25 pm-8:00 pm

1 stop33h 35m

$703

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 5/7

10:25 pm-8:20 pm

1 stop13h 55m

Bucharest Otopeni Intl

Fri 11/7

8:05 am-5:00 pm

1 stop16h 55m

$711

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 5/7

1:00 pm-1:15 pm

2 stops16h 15m

Bucharest Otopeni Intl

Fri 11/7

5:55 am-10:39 am

2 stops36h 44m

$723

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 8/3

9:40 pm-1:00 am

1 stop19h 20m

Bucharest Otopeni Intl

Fri 1/9

6:00 am-2:10 pm

1 stop16h 10m

$726

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Tue 7/29

6:00 am-12:10 pm

2 stops22h 10m

Bucharest Otopeni Intl

Wed 1/14

6:00 am-2:30 pm

1 stop16h 30m

$728

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 34 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 $1,175). 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 March 28, 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.

Rainfall in Bucharest by month

Plan your trip to Bucharest by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bucharest ranges from 0.8 - 3.1 inches per month. June is typically the wettest month, when rainfall can reach 3.1 in. October is typically the driest time to visit Bucharest when rainfall is around 0.8 in.

Temperature in Bucharest by month

Plan your trip to Bucharest by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bucharest, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Bucharest

Get insights into the airlines that provide service to Bucharest. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Bucharest. Reviews last updated March 28, 2025.
Get a feel of what it's like to fly with Delta, LOT and Austrian Airlines from Illinois to Bucharest by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,897 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
LOT
7.6
Good
1,063 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.5
Good
769 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,570 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,424 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • What are the cheapest airlines to fly from Illinois to Bucharest one-way?

    To fly one-way, consider booking your trip with Air Serbia, which is currently one of the cheapest options available, starting at $399. Turkish Airlines flights start at $449 while deals on British Airways start at $576 one-way.

  • 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 $1,175). 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 Illinois?

Book flights to Illinois 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$326Average$818FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$508Average$588FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$522Average$713FlexibilityNo cancel feeOn-time70%
LOTCheapest$533Average$969FlexibilityNo cancel feeOn-time81%
Austrian AirlinesCheapest$548Average$794FlexibilityNo cancel feeOn-time78%
LufthansaCheapest$548Average$974FlexibilityNo cancel feeOn-time76%
DeltaCheapest$568Average$1,097FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$580Average$861FlexibilityNo cancel feeOn-time77%
KLMCheapest$582Average$997FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$585Average$927FlexibilityNo cancel feeOn-time69%
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