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$316+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BUH
May 28 — Jun 41
Thu 5/28
Thu 6/4
1 adult, Economy
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Cheap 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 April 28, 2026.

This Air Serbia deal was found by Cheapflights users on 4/25. 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 9/1911:20 pm
ORD
-
OTP
1 stop19h 45m
Air Serbia
Sat 10/34:05 pm
OTP
-
ORD
1 stop13h 10m
Air Serbia
Deal found 4/25$612
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 9/24:40 pm
ORD
-
OTP
1 stop14h 40m
Air Serbia
Mon 9/214:30 am
OTP
-
ORD
1 stop18h 00m
Air Serbia
Deal found 4/24$631
This FlightHub deal was found by Cheapflights users on 4/24. 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 9/28:10 pm
ORD
-
OTP
1 stop16h 05m
Turkish Airlines
Tue 9/223:55 pm
OTP
-
ORD
1 stop25h 45m
Turkish Airlines
Deal found 4/24$633
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/264:40 pm
ORD
-
OTP
1 stop14h 40m
Air Serbia
Tue 9/84:05 pm
OTP
-
ORD
1 stop30h 25m
Air Serbia
Deal found 4/26$634
This FlightHub deal was found by Cheapflights users on 4/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:25 am
ORD
-
OTP
1 stop16h 40m
Turkish Airlines
Wed 9/93:55 pm
OTP
-
ORD
1 stop25h 45m
Turkish Airlines
Deal found 4/27$636
This Justfly.com deal was found by Cheapflights users on 4/23. 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.
Wed 9/28:10 pm
ORD
-
OTP
1 stop16h 05m
Turkish Airlines
Wed 9/169:35 pm
OTP
-
ORD
1 stop20h 05m
Turkish Airlines
Deal found 4/23$637
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 8/194:40 pm
ORD
-
OTP
1 stop14h 40m
Air Serbia
Sat 9/194:05 pm
OTP
-
ORD
1 stop13h 10m
Air Serbia
Deal found 4/22$652
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:25 am
ORD
-
OTP
1 stop12h 45m
Turkish Airlines
Tue 9/89:35 pm
OTP
-
ORD
1 stop20h 05m
Turkish Airlines
Deal found 4/26$653
This FlightHub deal was found by Cheapflights users on 4/24. 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 9/111:25 am
ORD
-
OTP
1 stop12h 45m
Turkish Airlines
Tue 9/229:35 pm
OTP
-
ORD
1 stop20h 05m
Turkish Airlines
Deal found 4/24$654
This FlightHub deal was found by Cheapflights users on 4/24. 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 9/311:25 am
ORD
-
OTP
1 stop19h 10m
Turkish Airlines
Wed 9/239:35 pm
OTP
-
ORD
1 stop20h 05m
Turkish Airlines
Deal found 4/24$655
This FlightHub deal was found by Cheapflights users on 4/25. 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 9/228:10 pm
ORD
-
OTP
1 stop16h 05m
Turkish Airlines
Wed 10/79:35 pm
OTP
-
ORD
1 stop20h 05m
Turkish Airlines
Deal found 4/25$659
This Delta deal was found by Cheapflights users on 4/23. 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.
Tue 10/2012:30 pm
MDW
-
OTP
2 stops16h 15m
Delta
Tue 11/106:00 am
OTP
-
MDW
2 stops23h 45m
Delta
Deal found 4/23$744

Find flight deals from Illinois to Bucharest

Keep the following information in mind while searching for Illinois to Bucharest flight deals. Data was last updated April 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$612
(Air Serbia)

One-way from

$316
(Air Serbia)

Popular in

May

Cheapest in

October

Average price

$710

Good round-trip deal

$813 or less

Good one-way deal

$443 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 Bucharest (BUH)
Search Deals
One-way flight from Illinois to Bucharest (BUH)
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($143 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Illinois to Bucharest (BUH).
Search Deals
Price to beat on a one-way flight from Illinois to Bucharest (BUH).
Search Deals

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 April 28, 2026.
Use the filters below to find and compare flights from Illinois to Bucharest that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBucharest

MDW - OTP

MDWOTP

Chicago Midway

Tue 10/20

12:30 pm-12:45 pm

2 stops16h 15m

Bucharest Otopeni Intl

Tue 11/10

6:00 am-9:45 pm

2 stops23h 45m

$744

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Tue 10/20

10:30 am-12:45 pm

2 stops18h 15m

Bucharest Otopeni Intl

Tue 11/10

6:00 am-4:49 pm

2 stops18h 49m

$744

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 8/19

12:57 pm-12:00 pm

2 stops15h 03m

Bucharest Otopeni Intl

Tue 9/15

6:05 am-12:55 pm

1 stop14h 50m

$790

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 8/12

10:30 am-1:40 pm

2 stops19h 10m

Bucharest Otopeni Intl

Wed 8/26

7:05 am-9:36 pm

2 stops22h 31m

$798

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 8/9

9:40 pm-11:40 pm

2 stops18h 00m

Bucharest Otopeni Intl

Mon 8/24

12:45 pm-11:21 pm

2 stops18h 36m

$804

ChicagoBucharest

MDW - OTP

MDWOTP

Chicago Midway

Wed 8/12

1:00 pm-1:40 pm

2 stops16h 40m

Bucharest Otopeni Intl

Wed 8/26

6:00 am-6:31 pm

2 stops20h 31m

$804

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Tue 7/21

10:28 am-1:40 pm

2 stops19h 12m

Bucharest Otopeni Intl

Wed 8/26

7:05 am-2:30 pm

1 stop15h 25m

$814

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 8/19

10:30 am-1:40 pm

2 stops19h 10m

Bucharest Otopeni Intl

Wed 9/2

7:05 am-10:06 pm

2 stops23h 01m

$823

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Fri 8/21

1:35 pm-1:40 pm

2 stops16h 05m

Bucharest Otopeni Intl

Fri 9/4

7:05 am-7:43 pm

2 stops20h 38m

$825

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 9/23

3:00 pm-6:35 pm

2 stops19h 35m

Bucharest Otopeni Intl

Wed 10/7

6:05 am-8:12 pm

2 stops22h 07m

$846

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/26

Showing 1-10 of 53 resultsSorted by cheapest first
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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

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

To ensure you get the cheapest price possible for a flight from Illinois to Bucharest, you should look to book at least 12 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.

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

Currently, July is the cheapest month in which you can book a flight from Illinois to Bucharest (average of $278). Flying from Illinois to Bucharest in November is currently the most expensive (average of $495). 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 much does it cost to fly round-trip from Illinois to Bucharest?

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?

    Delta, United Airlines, and Lufthansa can get you from Illinois to Bucharest in just under 15h 03m. Your travel time can differ by up to 6h 56m. 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 cheapest airlines to fly from Illinois to Bucharest one-way?

    To fly one-way, consider booking your trip with Austrian Airlines, which is currently one of the cheapest options available, starting at $251. KLM flights start at $270 while deals on Lufthansa start at $280 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.

  • What are the cheapest flights from Illinois to Bucharest?

    The cheapest flight price from Illinois to Bucharest is $424. On average you can expect to pay $882. The most popular route, (Chicago O'Hare Intl - Bucharest Otopeni Intl), can usually be booked for $631.

  • 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, July is the cheapest month in which you can book a flight from Illinois to Bucharest (average of $278). Flying from Illinois to Bucharest in November is currently the most expensive (average of $495). 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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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 April 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$300Average$731FlexibilityNo cancel feeOn-time69%
Scandinavian AirlinesCheapest$477Average$557FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$499Average$724FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$504Average$598FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$534Average$732FlexibilityNo cancel feeOn-time76%
KLMCheapest$539Average$789FlexibilityNo cancel feeOn-time75%
Air SerbiaCheapest$566Average$726FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$569Average$735FlexibilityNo cancel feeOn-time77%
DeltaCheapest$575Average$992FlexibilityNo cancel feeOn-timeN/A
LOTCheapest$586Average$933FlexibilityNo cancel feeOn-time81%

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