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$198+ Cheap flights from Chicago (CHI) 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 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BUH
Oct 25 — Nov 11
Sat 10/25
Sat 11/1
1 adult, Economy
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Find cheap flights from Chicago to Bucharest with Cheapflights

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Cheapflights Tip: The best prices from Chicago to Bucharest are usually found in February or March, booked 12 days in advance, depart on a Monday or Wednesday and return on a Saturday

Cheap flight deals from Chicago to Bucharest

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Bucharest (BUH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$538
(Kiwi.com)

One-way from

$198
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$673
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 Chicago (CHI) to Bucharest (BUH)
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One-way flight from Chicago (CHI) to Bucharest (BUH)
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Highest demand for flights based on searches. 27% potential increase in price ($296 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($32 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 Chicago to Bucharest

Cheapest flights from Chicago to Bucharest
Explore the most affordable flight options available from Chicago to Bucharest. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 25, 2025.

This CheapOair deal was found by Cheapflights users on 9/25. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/197:50 pmORD - OTP
1 stop28h 20mTurkish Airlines
Thu 11/610:10 amOTP - ORD
1 stop31h 55mTurkish Airlines
Deal found 9/25$542
This Kiwi.com deal was found by Cheapflights users on 9/24. 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.
Fri 11/710:35 pmORD - OTP
1 stop17h 15mLufthansa
Sun 11/162:50 pmOTP - ORD
1 stop13h 15mLufthansa
Deal found 9/24$543
This Mytrip deal was found by Cheapflights users on 9/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/169:40 pmORD - OTP
1 stop32h 10mLOT
Sat 11/12:35 pmOTP - ORD
1 stop13h 25mLOT
Deal found 9/22$544
This Kiwi.com deal was found by Cheapflights users on 9/24. 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.
Sat 11/89:55 pmORD - OTP
1 stop17h 20mLOT
Sat 11/158:20 amOTP - ORD
1 stop19h 40mLOT
Deal found 9/24$545
This Kiwi.com deal was found by Cheapflights users on 9/24. 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.
Sat 11/89:55 pmORD - OTP
1 stop11h 45mLOT
Fri 11/218:20 amOTP - ORD
1 stop19h 40mLOT
Deal found 9/24$546
This Kiwi.com deal was found by Cheapflights users on 9/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/84:00 pmORD - OTP
1 stop13h 15mLufthansa
Thu 11/62:45 pmOTP - ORD
1 stop13h 20mLufthansa
Deal found 9/23$548
This Kiwi.com deal was found by Cheapflights users on 9/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2611:35 pmORD - OTP
1 stop11h 50mLufthansa
Sun 11/92:50 pmOTP - ORD
1 stop13h 15mLufthansa
Deal found 9/25$549
This Kiwi.com deal was found by Cheapflights users on 9/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/207:05 pmORD - OTP
1 stop12h 15mMultiple Airlines
Tue 11/45:55 amOTP - ORD
1 stop15h 15mMultiple Airlines
Deal found 9/25$551
This FlightHub deal was found by Cheapflights users on 9/23. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/219:40 pmORD - OTP
1 stop17h 30mLOT
Tue 10/286:25 pmOTP - ORD
1 stop33h 35mLOT
Deal found 9/23$552
This Mytrip deal was found by Cheapflights users on 9/24. 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.
Sat 11/86:30 pmORD - OTP
2 stops22h 15mMultiple Airlines
Sat 11/156:45 pmOTP - ORD
2 stops30h 35mMultiple Airlines
Deal found 9/24$554
This CrystalTravel deal was found by Cheapflights users on 9/24. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/56:50 pmORD - OTP
1 stop13h 00mMultiple Airlines
Wed 12/106:05 amOTP - ORD
1 stop15h 05mMultiple Airlines
Deal found 9/24$556
This Delta deal was found by Cheapflights users on 9/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/206:23 pmMDW - OTP
2 stops14h 57mDelta
Tue 11/46:05 amOTP - MDW
2 stops20h 20mDelta
Deal found 9/25$579

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago 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 25, 2025.
Use the filters below to find and compare flights from Chicago to Bucharest that are best for you.

Fly from

Chicago

Fly to

Bucharest

Route

Depart

Return

Price

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 3/22

7:50 pm-12:30 am

1 stop21h 40m

Bucharest Otopeni Intl

Sun 4/5

6:35 am-1:20 pm

1 stop14h 45m

$561

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 11/10

5:10 pm-3:30 pm

1 stop14h 20m

Bucharest Otopeni Intl

Thu 11/20

4:35 pm-6:45 pm

1 stop34h 10m

$568

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Fri 12/5

5:10 pm-3:10 pm

1 stop14h 00m

Bucharest Otopeni Intl

Tue 12/9

8:00 am-6:45 pm

1 stop18h 45m

$568

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Fri 12/5

5:10 pm-3:10 pm

1 stop14h 00m

Bucharest Otopeni Intl

Mon 12/8

8:25 pm-1:50 pm

1 stop25h 25m

$568

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 11/12

5:10 pm-11:30 pm

1 stop22h 20m

Bucharest Otopeni Intl

Fri 11/21

8:20 pm-6:45 pm

1 stop30h 25m

$568

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 11/9

9:45 pm-3:30 pm

1 stop33h 45m

Bucharest Otopeni Intl

Thu 11/20

8:00 am-6:45 pm

1 stop18h 45m

$568

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Thu 12/4

9:45 pm-3:10 pm

1 stop33h 25m

Bucharest Otopeni Intl

Fri 12/12

8:20 pm-6:45 pm

1 stop30h 25m

$568

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Fri 12/5

5:10 pm-11:25 pm

1 stop22h 15m

Bucharest Otopeni Intl

Fri 12/12

8:20 pm-6:45 pm

1 stop30h 25m

$568

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Fri 11/7

5:10 pm-11:25 pm

1 stop22h 15m

Bucharest Otopeni Intl

Sat 11/15

8:05 am-6:45 pm

1 stop18h 40m

$568

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 11/10

5:10 pm-3:30 pm

1 stop14h 20m

Bucharest Otopeni Intl

Sun 11/16

7:35 am-1:50 pm

1 stop14h 15m

$568

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/23

Showing 1-10 of 34 results
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Compare providers for flights from Chicago to Bucharest

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Bucharest in September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago-Bucharest flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Bucharest flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Bucharest flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Bucharest flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Bucharest flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Chicago to Bucharest

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

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

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Bucharest. Price data was last updated on September 19, 2025.

To ensure you get the cheapest price possible for a flight from Chicago 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 Chicago to Bucharest?

Currently, November is the cheapest month in which you can book a flight from Chicago to Bucharest (average of $604). Flying from Chicago to Bucharest in June is currently the most expensive (average of $1,128). 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 CHI to BUH?

Find hourly flight availability from Chicago 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 25, 2025.

One of the essential ways to save on airfare from Chicago to Bucharest is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 36% on airfare.

What is the cheapest day to fly from Chicago to Bucharest?

Use this chart to determine the cheapest time to fly round-trip from Chicago to Bucharest. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Chicago to Bucharest flight should consider departing on Monday mornings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Chicago to Bucharest?

What’s the top layover airport for flights from Chicago to Bucharest?

Share of 1-stop round-trip flights from Chicago to Bucharest chosen by Cheapflights users in the past 12 months, using the same layover each way.

Amsterdam (AMS) – chosen by Cheapflights users on 57% of 1-stop itineraries from Chicago to Bucharest on Cheapflights.

What’s the cheapest layover airport for flights from Chicago to Bucharest?

Average round-trip fare for 1-stop flights from Chicago to Bucharest, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Amsterdam (AMS) is the most affordable 1-stop option, with an average round-trip price of $829.

What’s the fastest layover option from Chicago to Bucharest?

Shortest average travel time for 1-stop one-way flights from Chicago to Bucharest, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Warsaw (WAW) have the shortest average one-way travel time for 1-stop routes: 11h 52m.

Which airport typically offers the quickest layover for flights from Chicago to Bucharest?

Average layover duration for 1-stop one-way flights from Chicago to Bucharest, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Warsaw (WAW) offer the fastest connection on this route, with an average layover time of 1h 08m.

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 September 25, 2025.
See what other customers who have flown with LOT, United Airlines, and Turkish Airlines from Chicago to Bucharest have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
LOT
7.6
Good
1,118 reviews

Comfort

7.5

Entertainment

7.0

Boarding

7.6

Overall

7.6

Crew

8.2

Food

7.1

Reviews

1 / 20
10.0
Excellent

Rami,Sep 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights
LOT
7.6
Good
1,118 reviews
LOT
7.6
Good
1,118 reviews

Comfort

7.5

Entertainment

7.0

Boarding

7.6

Overall

7.6

Crew

8.2

Food

7.1

Reviews

1 / 20
10.0
Excellent

Rami,Sep 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights
United Airlines
7.4
Good
8,926 reviews
LOT
7.6
Good
1,118 reviews

Comfort

7.5

Entertainment

7.0

Boarding

7.6

Overall

7.6

Crew

8.2

Food

7.1

Reviews

1 / 20
10.0
Excellent

Rami,Sep 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights
Turkish Airlines
7.3
Good
3,977 reviews
LOT
7.6
Good
1,118 reviews

Comfort

7.5

Entertainment

7.0

Boarding

7.6

Overall

7.6

Crew

8.2

Food

7.1

Reviews

1 / 20
10.0
Excellent

Rami,Sep 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights
Lufthansa
6.8
Okay
7,424 reviews
LOT
7.6
Good
1,118 reviews

Comfort

7.5

Entertainment

7.0

Boarding

7.6

Overall

7.6

Crew

8.2

Food

7.1

Reviews

1 / 20
10.0
Excellent

Rami,Sep 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights
British Airways
6.7
Okay
7,399 reviews
LOT
7.6
Good
1,118 reviews

Comfort

7.5

Entertainment

7.0

Boarding

7.6

Overall

7.6

Crew

8.2

Food

7.1

Reviews

1 / 20
10.0
Excellent

Rami,Sep 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights

Related info for your journey

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

    British Airways and Delta can get you from Chicago to Bucharest in just under 14h 20m. Your travel time can differ by up to 37m. Chicago and Bucharest are separated by a distance of 5198 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Chicago to Bucharest round-trip?

    Our cheapest airline available from Chicago to Bucharest is Scandinavian Airlines. Our recent data shows that you can find tickets from as low as $385 on this airline. Additional options worth looking into are Turkish Airlines and Austrian Airlines, starting at $503 and $517 round-trip. Users have found that Scandinavian Airlines is 49% cheaper than the other options available to this destination.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Chicago to Bucharest (average of $604). Flying from Chicago to Bucharest in June is currently the most expensive (average of $1,128). 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 Chicago to Bucharest

Discover the top 10 airlines that operate flights from Chicago 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 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$385Average$728FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$503Average$596FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$517Average$638FlexibilityNo cancel feeOn-time78%
LufthansaCheapest$534Average$887FlexibilityNo cancel feeOn-time76%
LOTCheapest$538Average$892FlexibilityNo cancel feeOn-time81%
British AirwaysCheapest$544Average$734FlexibilityNo 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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