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$289+ 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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BUH
Aug 27 — Sep 31
Thu 8/27
Thu 9/3
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 July 28, 2026.

This Turkish Airlines deal was found by Cheapflights users on 7/28. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/611:25 am
ORD
-
OTP
1 stop12h 45m
Turkish Airlines
Fri 9/253:55 pm
OTP
-
ORD
1 stop25h 45m
Turkish Airlines
Deal found 7/28$784
This Mytrip deal was found by Cheapflights users on 7/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:25 pm
ORD
-
OTP
2 stops21h 10m
Multiple Airlines
Tue 9/85:35 am
OTP
-
ORD
3 stops23h 50m
Multiple Airlines
Deal found 7/24$786
This Delta deal was found by Cheapflights users on 7/23. 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.
Sun 10/252:00 pm
ORD
-
OTP
2 stops17h 10m
Delta
Sun 11/86:00 am
OTP
-
ORD
1 stop16h 25m
Delta
Deal found 7/23$787
This Turkish Airlines deal was found by Cheapflights users on 7/24. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2811:25 am
ORD
-
OTP
2 stops24h 20m
Turkish Airlines
Mon 10/198:35 pm
OTP
-
ORD
1 stop29h 40m
Turkish Airlines
Deal found 7/24$788
This Turkish Airlines deal was found by Cheapflights users on 7/28. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/68:10 pm
ORD
-
OTP
1 stop16h 00m
Turkish Airlines
Mon 9/213:55 pm
OTP
-
ORD
1 stop25h 45m
Turkish Airlines
Deal found 7/28$789
This Cheapflightsfares deal was found by Cheapflights users on 7/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:15 pm
ORD
-
OTP
2 stops20h 30m
Scandinavian Airlines
Tue 9/294:50 pm
OTP
-
ORD
2 stops31h 20m
Scandinavian Airlines
Deal found 7/26$790
This Mytrip deal was found by Cheapflights users on 7/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/78:10 pm
ORD
-
OTP
2 stops21h 25m
Multiple Airlines
Mon 9/148:20 am
OTP
-
ORD
3 stops33h 20m
Multiple Airlines
Deal found 7/24$792
This Air Serbia deal was found by Cheapflights users on 7/24. 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 Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/74:40 pm
ORD
-
OTP
1 stop14h 40m
Air Serbia
Sat 9/194:30 am
OTP
-
ORD
1 stop24h 45m
Air Serbia
Deal found 7/24$793
This Turkish Airlines deal was found by Cheapflights users on 7/23. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:10 pm
ORD
-
OTP
1 stop21h 00m
Turkish Airlines
Mon 9/146:25 pm
OTP
-
ORD
2 stops47h 15m
Turkish Airlines
Deal found 7/23$794
This Air Serbia deal was found by Cheapflights users on 7/28. 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 9/74:40 pm
ORD
-
OTP
1 stop14h 40m
Air Serbia
Sun 9/204:05 pm
OTP
-
ORD
1 stop30h 25m
Air Serbia
Deal found 7/28$795
This Delta deal was found by Cheapflights users on 7/27. 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 10/301:27 pm
MDW
-
OTP
2 stops17h 43m
Delta
Thu 11/126:00 am
OTP
-
MDW
2 stops18h 39m
Delta
Deal found 7/27$796
This KLM deal was found by Cheapflights users on 7/26. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/95:37 pm
MDW
-
OTP
2 stops15h 43m
KLM
Wed 9/168:35 am
OTP
-
MDW
2 stops17h 44m
KLM
Deal found 7/26$846

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 July 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$784
(Turkish Airlines)

One-way from

$289
(Trip.com)

Popular in

May

Cheapest in

January

Average price

$909

Good round-trip deal

$932 or less

Good one-way deal

$478 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. 13% potential increase in price ($120 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 July 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 July 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

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 9/28

11:25 am-7:45 pm

2 stops24h 20m

Bucharest Otopeni Intl

Mon 10/19

8:35 pm-6:15 pm

1 stop29h 40m

$788

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 9/10

8:10 pm-1:10 am

1 stop21h 00m

Bucharest Otopeni Intl

Mon 9/14

6:25 pm-9:40 am

2 stops47h 15m

$794

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Tue 9/8

11:25 am-12:00 pm

1 stop16h 35m

Bucharest Otopeni Intl

Tue 9/15

7:20 am-9:40 am

2 stops34h 20m

$806

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 9/2

8:10 pm-2:35 pm

1 stop34h 25m

Bucharest Otopeni Intl

Wed 9/16

9:35 pm-9:40 am

1 stop20h 05m

$808

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 9/9

5:10 pm-1:50 am

2 stops24h 40m

Bucharest Otopeni Intl

Wed 9/23

2:35 pm-7:50 pm

1 stop13h 15m

$826

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 8/17

8:10 pm-12:00 pm

1 stop31h 50m

Bucharest Otopeni Intl

Mon 9/14

6:25 pm-9:40 am

2 stops47h 15m

$838

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 8/26

10:30 am-1:40 pm

2 stops19h 10m

Bucharest Otopeni Intl

Wed 9/9

7:05 am-2:30 pm

1 stop15h 25m

$847

ChicagoBucharest

MDW - OTP

MDWOTP

Chicago Midway

Wed 9/9

5:37 pm-5:20 pm

2 stops15h 43m

Bucharest Otopeni Intl

Wed 9/16

8:35 am-6:19 pm

2 stops17h 44m

$854

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 8/19

11:25 am-8:10 am

1 stop12h 45m

Bucharest Otopeni Intl

Wed 9/2

9:35 pm-9:40 am

1 stop20h 05m

$854

ChicagoBucharest

MDW - OTP

MDWOTP

Chicago Midway

Wed 8/26

9:59 am-1:40 pm

2 stops19h 41m

Bucharest Otopeni Intl

Wed 9/9

7:05 am-6:19 pm

2 stops19h 14m

$856

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/24

Showing 1-10 of 44 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

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 $548). Flying from Illinois to Bucharest in May is currently the most expensive (average of $1,098). 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?

Airfare is typical for this route at the moment.
Illinois to Bucharest flights typically cost between $582 and $1,065 in September.
The cheapest round-trip price found within the last 5 days was $784 on Turkish Airlines (Sep 6-Sep 25).

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.

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?

    Turkish Airlines, KLM, and Delta can get you from Illinois to Bucharest in just under 15h 43m. Your travel time can differ by up to 8h 37m. There are 5203 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 $426. On average you can expect to pay $731. The most popular route, (Chicago O'Hare Intl - Bucharest Otopeni Intl), can usually be booked for $649.

  • 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 $548). Flying from Illinois to Bucharest in May is currently the most expensive (average of $1,098). 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 July 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$300Average$799FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$418Average$762FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$503Average$574FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$510Average$949FlexibilityNo cancel feeOn-time77%
KLMCheapest$541Average$820FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$553Average$823FlexibilityNo cancel feeOn-time76%
Air SerbiaCheapest$566Average$747FlexibilityNo cancel feeOn-timeN/A
SWISSCheapest$569Average$1,063FlexibilityNo cancel feeOn-time79%
DeltaCheapest$575Average$1,039FlexibilityNo cancel feeOn-timeN/A
LOTCheapest$586Average$1,182FlexibilityNo cancel feeOn-time81%

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