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Ontario

$596+ Cheap flights from Bucharest (BUH) to Ontario (ONT)

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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
BUH — ONT
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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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 September 15, 2025.

Round-trip from

$820
(British Airways)

One-way from

$596
(oojo)

Popular in

July

Cheapest in

March

Average price

$827
From Bucharest (BUH) to Ontario
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One-way flight from Bucharest (BUH) to Ontario
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Highest demand for flights based on searches. 6% potential increase in price ($62 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($12 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 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 September 15, 2025.

This United Airlines deal was found by Cheapflights users on 9/15. 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 10/161:55 pmOTP - ONT
2 stops18h 57mUnited Airlines
Thu 10/231:53 pmONT - OTP
2 stops23h 47mUnited Airlines
Deal found 9/15$905
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Sun 11/97:35 amOTP - ONT
2 stops23h 36mAmerican Airlines
Mon 11/2410:47 amONT - OTP
2 stops18h 43mAmerican Airlines
Deal found 9/14$923
This EaseMyTrip deal was found by Cheapflights users on 9/13. 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 EaseMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/281:55 pmOTP - ONT
2 stops34h 58mKLM
Tue 11/116:45 amONT - OTP
2 stops22h 40mKLM
Deal found 9/13$971
This SmartFares deal was found by Cheapflights users on 9/13. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/44:50 pmOTP - ONT
2 stops40h 52mKLM
Mon 10/137:35 amONT - OTP
2 stops21h 50mKLM
Deal found 9/13$1,061
This United Airlines deal was found by Cheapflights users on 9/13. 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 12/155:55 amOTP - ONT
2 stops24h 47mUnited Airlines
Sun 1/41:40 pmONT - OTP
2 stops24h 10mUnited Airlines
Deal found 9/13$1,133
This Gotogate deal was found by Cheapflights users on 9/14. 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.
Sat 10/48:25 amOTP - ONT
2 stops20h 29mBritish Airways
Mon 10/1312:48 pmONT - OTP
2 stops18h 37mBritish Airways
Deal found 9/14$1,299
This Gotogate deal was found by Cheapflights users on 9/14. 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.
Mon 10/68:25 amOTP - ONT
2 stops20h 34mBritish Airways
Mon 10/2012:48 pmONT - OTP
2 stops18h 37mBritish Airways
Deal found 9/14$1,336
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Sun 12/215:55 amOTP - ONT
2 stops25h 12mUnited Airlines
Sun 1/45:05 amONT - OTP
2 stops23h 00mUnited Airlines
Deal found 9/13$1,433
This United Airlines deal was found by Cheapflights users on 9/15. 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 12/185:50 amOTP - ONT
2 stops25h 17mUnited Airlines
Sat 1/35:05 amONT - OTP
2 stops23h 00mUnited Airlines
Deal found 9/15$1,451
This Qatar Airways deal was found by Cheapflights users on 9/13. 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.
Fri 11/74:20 pmOTP - ONT
2 stops38h 33mQatar Airways
Fri 11/216:00 amONT - OTP
2 stops38h 40mQatar Airways
Deal found 9/13$1,652
This Qatar Airways deal was found by Cheapflights users on 9/14. 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.
Tue 11/44:20 pmOTP - ONT
2 stops31h 42mQatar Airways
Mon 11/1711:59 amONT - OTP
2 stops32h 41mQatar Airways
Deal found 9/14$1,653
This Qatar Airways deal was found by Cheapflights users on 9/15. 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.
Fri 10/314:20 pmOTP - ONT
2 stops30h 23mQatar Airways
Sat 11/1511:59 amONT - OTP
2 stops32h 41mQatar Airways
Deal found 9/15$1,689

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 September 15, 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 2/4

8:05 am-10:02 pm

2 stops23h 57m

Ontario

Sat 2/21

11:05 am-3:05 pm

2 stops18h 00m

$820

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Fri 2/13

8:00 am-11:43 pm

2 stops25h 43m

Ontario

Tue 2/17

6:46 am-10:55 pm

2 stops30h 09m

$856

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Tue 10/28

5:55 am-5:34 pm

2 stops20h 39m

Ontario

Tue 11/11

5:05 am-1:55 pm

2 stops22h 50m

$905

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Mon 2/2

2:50 pm-10:53 pm

2 stops18h 03m

Ontario

Sat 2/21

6:00 am-2:05 pm

2 stops22h 05m

$905

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Thu 10/16

1:55 pm-10:52 pm

2 stops18h 57m

Ontario

Thu 10/23

1:53 pm-11:40 pm

2 stops23h 47m

$905

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Thu 2/5

5:50 am-10:53 pm

2 stops27h 03m

Ontario

Sat 2/21

6:00 am-2:05 pm

2 stops22h 05m

$905

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Sat 2/7

5:55 am-9:58 pm

2 stops26h 03m

Ontario

Sat 2/21

6:00 am-2:05 pm

2 stops22h 05m

$906

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Tue 2/3

5:55 am-5:43 pm

2 stops21h 48m

Ontario

Sat 2/21

6:00 am-2:05 pm

2 stops22h 05m

$906

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Fri 2/6

5:55 am-10:26 pm

2 stops26h 31m

Ontario

Sat 2/21

6:00 am-2:05 pm

2 stops22h 05m

$906

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Sun 11/9

7:35 am-9:11 pm

2 stops23h 36m

Ontario

Mon 11/24

10:47 am-3:30 pm

2 stops18h 43m

$923

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 23 results
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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, August is the cheapest month in which you can book a flight from Bucharest to Ontario (average of $246). Flying from Bucharest to Ontario in March is currently the most expensive (average of $328). 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 20h 39m. Fly via British Airways, American Airlines, or United Airlines 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, August is the cheapest month in which you can book a flight from Bucharest to Ontario (average of $246). Flying from Bucharest to Ontario in March is currently the most expensive (average of $328). 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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