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$263+ 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 6/21. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BUH
Jun 28 — Jul 51
Sun 6/28
Sun 7/5
1 adult, Economy
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Find cheap flights from Chicago to Bucharest with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Chicago to Bucharest are usually found in October or January, booked 57 days in advance, depart on a Tuesday or Sunday and return on a Tuesday

Cheap 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 May 29, 2026.

This deal was found by Cheapflights users on 5/24. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/124:40 pm
ORD
-
OTP
1 stop14h 40m
Air Serbia
Sat 10/104:05 pm
OTP
-
ORD
1 stop13h 10m
Air Serbia
Deal found 5/24$729
This Air Serbia deal was found by Cheapflights users on 5/25. 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 8/111:20 pm
ORD
-
OTP
1 stop32h 00m
Air Serbia
Mon 8/314:30 am
OTP
-
ORD
1 stop18h 00m
Air Serbia
Deal found 5/25$730
This Air Serbia deal was found by Cheapflights users on 5/26. 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 Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/111:20 pm
ORD
-
OTP
1 stop19h 45m
Air Serbia
Sun 8/304:05 pm
OTP
-
ORD
1 stop30h 25m
Air Serbia
Deal found 5/26$732
This American Airlines deal was found by Cheapflights users on 5/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/242:03 pm
ORD
-
OTP
2 stops16h 42m
American Airlines
Tue 12/88:00 am
OTP
-
ORD
1 stop19h 15m
American Airlines
Deal found 5/24$735
This FlightHub deal was found by Cheapflights users on 5/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2710:40 am
ORD
-
OTP
2 stops22h 10m
Air Canada
Tue 11/106:30 am
OTP
-
ORD
2 stops19h 57m
Air Canada
Deal found 5/26$741
This Delta deal was found by Cheapflights users on 5/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2411:10 am
ORD
-
OTP
2 stops19h 00m
Delta
Tue 12/86:00 am
OTP
-
ORD
2 stops19h 57m
Delta
Deal found 5/24$743
This Kiwi.com deal was found by Cheapflights users on 5/24. 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.
Thu 10/227:05 pm
ORD
-
OTP
1 stop12h 15m
SWISS
Thu 11/56:30 am
OTP
-
ORD
1 stop14h 10m
SWISS
Deal found 5/24$745
This Air Canada deal was found by Cheapflights users on 5/28. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/223:55 pm
ORD
-
OTP
2 stops39h 55m
Air Canada
Thu 12/106:30 am
OTP
-
ORD
2 stops34h 30m
Air Canada
Deal found 5/28$746
This Delta deal was found by Cheapflights users on 5/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:10 pm
ORD
-
OTP
2 stops14h 50m
Delta
Tue 12/86:00 am
OTP
-
ORD
2 stops19h 34m
Delta
Deal found 5/28$747
This Cheapflightsfares deal was found by Cheapflights users on 5/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/234:20 pm
ORD
-
OTP
1 stop12h 05m
Multiple Airlines
Fri 11/62:35 pm
OTP
-
ORD
1 stop13h 30m
Multiple Airlines
Deal found 5/25$749
This Gotogate deal was found by Cheapflights users on 5/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2910:50 pm
ORD
-
OTP
1 stop19h 15m
Multiple Airlines
Thu 11/126:30 am
OTP
-
ORD
2 stops21h 05m
Multiple Airlines
Deal found 5/28$750
This Delta deal was found by Cheapflights users on 5/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/261:27 pm
MDW
-
OTP
2 stops16h 13m
Delta
Wed 9/97:05 am
OTP
-
MDW
2 stops19h 26m
Delta
Deal found 5/28$796

Find 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 May 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$727
(Mytrip)

One-way from

$263
(SWISS)

Popular in

May

Cheapest in

October

Average price

$1,214

Good round-trip deal

$867 or less

Good one-way deal

$435 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 Chicago (CHI) to Bucharest (BUH)
Search Deals
One-way flight from Chicago (CHI) to Bucharest (BUH)
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($160 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Chicago (CHI) to Bucharest (BUH).
Search Deals
Price to beat on a one-way flight from Chicago (CHI) to Bucharest (BUH).
Search Deals

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 May 29, 2026.
Use the filters below to find and compare flights from Chicago 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

Wed 8/26

11:22 am-1:40 pm

2 stops18h 18m

Bucharest Otopeni Intl

Wed 9/9

7:05 am-2:30 pm

1 stop15h 25m

$786

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 9/9

10:40 am-12:45 pm

2 stops18h 05m

Bucharest Otopeni Intl

Wed 9/23

7:05 am-2:30 pm

1 stop15h 25m

$786

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 8/12

10:28 am-1:40 pm

2 stops19h 12m

Bucharest Otopeni Intl

Wed 8/26

7:05 am-2:30 pm

1 stop15h 25m

$787

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sat 8/1

6:30 am-1:40 pm

2 stops23h 10m

Bucharest Otopeni Intl

Tue 8/25

2:00 pm-2:30 pm

1 stop32h 30m

$788
Quickest round-trip

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Sun 8/9

5:10 pm-1:40 pm

1 stop12h 30m

Bucharest Otopeni Intl

Sat 8/22

2:00 pm-12:02 am

2 stops18h 02m

$794

ChicagoBucharest

MDW - OTP

MDWOTP

Chicago Midway

Wed 8/26

9:59 am-1:00 pm

2 stops19h 01m

Bucharest Otopeni Intl

Wed 9/9

7:05 am-6:31 pm

2 stops19h 26m

$800

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Mon 8/17

11:25 am-11:30 am

1 stop16h 05m

Bucharest Otopeni Intl

Mon 9/14

2:45 pm-9:40 am

2 stops50h 55m

$814

ChicagoBucharest

MDW - OTP

MDWOTP

Chicago Midway

Wed 8/19

1:51 pm-1:40 pm

2 stops15h 49m

Bucharest Otopeni Intl

Wed 9/2

7:05 am-6:01 pm

2 stops18h 56m

$853

ChicagoBucharest

ORD - OTP

ORDOTP

Chicago O'Hare Intl

Wed 8/19

11:22 am-1:40 pm

2 stops18h 18m

Bucharest Otopeni Intl

Wed 9/2

7:05 am-9:52 pm

2 stops22h 47m

$853

ChicagoBucharest

MDW - OTP

MDWOTP

Chicago Midway

Wed 8/12

1:27 pm-1:40 pm

2 stops16h 13m

Bucharest Otopeni Intl

Wed 8/26

6:00 am-6:01 pm

2 stops20h 01m

$854

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/26

Showing 1-10 of 41 resultsSorted by cheapest first
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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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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

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

Currently, July is the cheapest month in which you can book a flight from Chicago to Bucharest (average of $278). Flying from Chicago to Bucharest in August is currently the most expensive (average of $499). 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 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 33% 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.

Vienna (VIE) is the most affordable 1-stop option, with an average round-trip price of $482.

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 Vienna (VIE) have the shortest average one-way travel time for 1-stop routes: 12h 10m.

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 Amsterdam (AMS) offer the fastest connection on this route, with an average layover time of 2h 06m.

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

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.

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 May 29, 2026.
See what other customers who have flown with LOT,Turkish Airlines, andUnited 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
7.5
Good
1,196 reviews

Food

7.1

Overall

7.5

Comfort

7.4

Entertainment

6.9

Boarding

7.5

Crew

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

NQZ - WAW

Everything is ok , but I paid for seats that was given to someone . And when she was given tickets during registration, the customer service representative didn’t even see anything that the seats were exactly 16 D for both flight . But he gave tickets with totally different seats. How can they don’t see it on the site when he is registering someone . I don’t know what to say .
LOT
7.5
Good
1,196 reviews
LOT
7.5
Good
1,196 reviews

Food

7.1

Overall

7.5

Comfort

7.4

Entertainment

6.9

Boarding

7.5

Crew

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

NQZ - WAW

Everything is ok , but I paid for seats that was given to someone . And when she was given tickets during registration, the customer service representative didn’t even see anything that the seats were exactly 16 D for both flight . But he gave tickets with totally different seats. How can they don’t see it on the site when he is registering someone . I don’t know what to say .
Turkish Airlines
7.4
Good
4,399 reviews
LOT
7.5
Good
1,196 reviews

Food

7.1

Overall

7.5

Comfort

7.4

Entertainment

6.9

Boarding

7.5

Crew

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

NQZ - WAW

Everything is ok , but I paid for seats that was given to someone . And when she was given tickets during registration, the customer service representative didn’t even see anything that the seats were exactly 16 D for both flight . But he gave tickets with totally different seats. How can they don’t see it on the site when he is registering someone . I don’t know what to say .
United Airlines
7.4
Good
9,762 reviews
LOT
7.5
Good
1,196 reviews

Food

7.1

Overall

7.5

Comfort

7.4

Entertainment

6.9

Boarding

7.5

Crew

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

NQZ - WAW

Everything is ok , but I paid for seats that was given to someone . And when she was given tickets during registration, the customer service representative didn’t even see anything that the seats were exactly 16 D for both flight . But he gave tickets with totally different seats. How can they don’t see it on the site when he is registering someone . I don’t know what to say .
Lufthansa
6.8
Okay
8,032 reviews
LOT
7.5
Good
1,196 reviews

Food

7.1

Overall

7.5

Comfort

7.4

Entertainment

6.9

Boarding

7.5

Crew

8.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

NQZ - WAW

Everything is ok , but I paid for seats that was given to someone . And when she was given tickets during registration, the customer service representative didn’t even see anything that the seats were exactly 16 D for both flight . But he gave tickets with totally different seats. How can they don’t see it on the site when he is registering someone . I don’t know what to say .

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?

    Delta can get you from Chicago to Bucharest in just under 18h 18m. Your travel time can differ by up to . Chicago and Bucharest are separated by a distance of 5198 mi.

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

    Our cheapest airline available from Chicago to Bucharest is United Airlines. Our recent data shows that you can find tickets from as low as $300 on this airline. Additional options worth looking into are British Airways and Turkish Airlines, starting at $440 and $504 round-trip. Users have found that United Airlines is 60% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Chicago 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 cheapest flights from Chicago to Bucharest?

    Looking for the cheapest flight from Chicago to Bucharest? While on average our users pay $691, our data indicates the cheapest price to be $421. The most popular route (Chicago O'Hare Intl - Bucharest Otopeni Intl), is priced around $714.

  • 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, July is the cheapest month in which you can book a flight from Chicago to Bucharest (average of $278). Flying from Chicago to Bucharest in August is currently the most expensive (average of $499). 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 Chicago to Bucharest

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Otopeni Intl flights
O'Hare Intl to Timisoara flights
O'Hare Intl to Iaşi flights
O'Hare Intl to Oradea flights

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 May 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$300Average$727FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$440Average$772FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$504Average$595FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$535Average$742FlexibilityNo cancel feeOn-time76%
Air SerbiaCheapest$537Average$746FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$539Average$789FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$569Average$950FlexibilityNo cancel feeOn-time77%
SWISSCheapest$569Average$875FlexibilityNo cancel feeOn-time79%
DeltaCheapest$575Average$1,013FlexibilityNo cancel feeOn-timeN/A
LOTCheapest$586Average$908FlexibilityNo cancel feeOn-time81%

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