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Ontario

$841+ Cheap flights from Bucharest (BUH) to Ontario (ONT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
BUH — ONT
Dec 5 — Dec 121
Fri 12/5
Fri 12/12
1 adult, Economy
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Find flight deals from Bucharest to Ontario

Cheapest flights from Bucharest to Ontario
Explore the most affordable flight options available from Bucharest to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2025.

This United Airlines deal was found by Cheapflights users on 11/5. 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.
Wed 12/106:05 amOTP - ONT
2 stops24h 37mUnited Airlines
Thu 1/86:00 amONT - OTP
2 stops22h 05mUnited Airlines
Deal found 11/5$841
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Thu 11/275:50 amOTP - ONT
2 stops19h 31mUnited Airlines
Sat 2/76:00 amONT - OTP
2 stops22h 05mUnited Airlines
Deal found 11/3$844
This British Airways deal was found by Cheapflights users on 11/4. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/218:00 amOTP - ONT
2 stops25h 57mBritish Airways
Fri 12/512:46 pmONT - OTP
2 stops24h 39mBritish Airways
Deal found 11/4$869
This United Airlines deal was found by Cheapflights users on 11/4. 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.
Thu 11/275:50 amOTP - ONT
2 stops21h 44mUnited Airlines
Fri 2/66:00 amONT - OTP
2 stops22h 10mUnited Airlines
Deal found 11/4$878
This United Airlines deal was found by Cheapflights users on 11/2. 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 12/125:55 amOTP - ONT
2 stops24h 47mUnited Airlines
Fri 5/84:15 pmONT - OTP
2 stops16h 20mUnited Airlines
Deal found 11/2$969
This Iberia deal was found by Cheapflights users on 11/4. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/228:05 amOTP - ONT
2 stops24h 09mMultiple Airlines
Sun 1/410:50 amONT - OTP
2 stops18h 05mMultiple Airlines
Deal found 11/4$1,117
This United Airlines deal was found by Cheapflights users on 11/4. 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.
Mon 11/105:55 amOTP - ONT
2 stops22h 41mUnited Airlines
Mon 11/246:00 amONT - OTP
2 stops22h 05mUnited Airlines
Deal found 11/4$1,217
This American Airlines deal was found by Cheapflights users on 11/5. 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.
Sat 12/138:05 amOTP - ONT
2 stops24h 23mMultiple Airlines
Wed 1/710:58 amONT - OTP
2 stops23h 02mMultiple Airlines
Deal found 11/5$1,326
This Qatar Airways deal was found by Cheapflights users on 11/4. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/74:20 pmOTP - ONT
2 stops31h 35mQatar Airways
Sat 2/711:53 amONT - OTP
2 stops32h 47mQatar Airways
Deal found 11/4$1,754
This Qatar Airways deal was found by Cheapflights users on 11/2. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/114:20 pmOTP - ONT
2 stops31h 35mQatar Airways
Thu 5/1411:51 amONT - OTP
2 stops33h 54mQatar Airways
Deal found 11/2$1,816

Cheap flight deals from Bucharest to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Bucharest (BUH) to Ontario (ONT). 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 November 5, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$841
(United Airlines)

Popular in

July

Cheapest in

March

Average price

$866
Provider with most accurate pricing for Bucharest (BUH)-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bucharest (BUH)-Ontario flights.
Search Deals
From Bucharest (BUH) to Ontario
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($63 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bucharest to Ontario 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 November 5, 2025.
Use the filters below to find and compare flights from Bucharest to Ontario that are best for you.

Fly from

Bucharest

Fly to

Ontario

Route

Depart

Return

Price

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Wed 12/10

6:05 am-8:42 pm

2 stops24h 37m

Ontario

Thu 1/8

6:00 am-2:05 pm

2 stops22h 05m

$841

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Thu 12/11

5:50 am-5:37 pm

2 stops21h 47m

Ontario

Thu 1/8

6:00 am-2:05 pm

2 stops22h 05m

$841

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Mon 2/2

5:55 am-8:58 pm

2 stops25h 03m

Ontario

Wed 2/11

5:05 am-2:00 pm

2 stops22h 55m

$843

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Thu 11/27

5:50 am-3:21 pm

2 stops19h 31m

Ontario

Sat 2/7

6:00 am-2:05 pm

2 stops22h 05m

$844

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Fri 11/21

8:00 am-11:57 pm

2 stops25h 57m

Ontario

Fri 12/5

12:46 pm-11:25 pm

2 stops24h 39m

$869

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Thu 11/27

5:50 am-5:34 pm

2 stops21h 44m

Ontario

Fri 2/6

6:00 am-2:10 pm

2 stops22h 10m

$878

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Fri 2/13

8:00 am-11:58 pm

2 stops25h 58m

Ontario

Tue 2/17

6:10 am-10:55 pm

2 stops30h 45m

$899

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Fri 12/12

5:55 am-8:42 pm

2 stops24h 47m

Ontario

Fri 5/8

4:15 pm-6:35 pm

2 stops16h 20m

$969

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Mon 12/22

8:05 am-10:14 pm

2 stops24h 09m

Ontario

Sun 1/4

10:50 am-2:55 pm

2 stops18h 05m

$1,117

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Thu 4/23

8:25 am-9:56 pm

2 stops23h 31m

Ontario

Thu 5/14

11:01 am-2:30 pm

2 stops17h 29m

$1,260

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Showing 1-10 of 12 results
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Compare providers for flights from Bucharest to Ontario

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 Bucharest to Ontario in November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 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 Bucharest-Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Bucharest-Ontario flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Bucharest-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Bucharest-Ontario flights, Cheapflights users trust eDreams the most. eDreams 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 Bucharest-Ontario 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 Bucharest to Ontario

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

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

Currently, September is the cheapest month in which you can book a flight from Bucharest to Ontario (average of $489). Flying from Bucharest to Ontario in July is currently the most expensive (average of $850). 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.

Related info for your journey

Find useful and relevant information for your journey from Bucharest to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from Bucharest?

    If you book a flight to Ontario from Bucharest, you will be flying to Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario. There are 0 flights from Bucharest to Ontario per day from 0 different airlines.

  • How long is the flight from Bucharest to Ontario?

    There are many flights that can get you from Bucharest to Ontario in 24h 37m. Fly via United Airlines or British Airways to get the fastest option. There are 6541 mi between Bucharest and Ontario. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Bucharest to Ontario (average of $489). Flying from Bucharest to Ontario in July is currently the most expensive (average of $850). 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

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