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Ontario

$687+ 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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
BUH — ONT
Jun 22 — Jun 291
Sun 6/22
Sun 6/29
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 June 17, 2025.

Round-trip from

$818
(American Airlines)

One-way from

$687
(Air Serbia)

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. 5% potential increase in price ($52 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 June 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 June 17, 2025.

This American Airlines deal was found by Cheapflights users on 6/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/208:25 amOTP - ONT
2 stops19h 59mAmerican Airlines
Fri 9/1212:46 pmONT - OTP
2 stops25h 04mAmerican Airlines
Deal found 6/15$818
This United Airlines deal was found by Cheapflights users on 6/15. 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.
Wed 8/206:00 amOTP - ONT
2 stops24h 33mUnited Airlines
Sat 9/136:50 pmONT - OTP
2 stops37h 45mUnited Airlines
Deal found 6/15$889
This Air Serbia deal was found by Cheapflights users on 6/17. 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 9/1512:50 pmOTP - ONT
2 stops42h 39mAir Serbia
Sun 9/2110:56 pmONT - OTP
2 stops31h 29mAir Serbia
Deal found 6/17$1,133
This Netflights deal was found by Cheapflights users on 6/16. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/18:05 amOTP - ONT
2 stops23h 36mBritish Airways
Wed 12/315:03 pmONT - OTP
2 stops17h 07mBritish Airways
Deal found 6/16$1,482
This Qatar Airways deal was found by Cheapflights users on 6/15. 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.
Wed 8/205:10 pmOTP - ONT
2 stops30h 31mQatar Airways
Sat 9/132:54 pmONT - OTP
2 stops37h 21mQatar Airways
Deal found 6/15$1,961
This Mytrip deal was found by Cheapflights users on 6/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/206:40 pmOTP - ONT
3 stops34h 00mMultiple Airlines
Sun 7/275:09 pmONT - OTP
3 stops22h 41mMultiple Airlines
Deal found 6/15$2,880

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 June 17, 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 8/20

8:25 am-6:24 pm

2 stops19h 59m

Ontario

Fri 9/12

12:46 pm-11:50 pm

2 stops25h 04m

$818

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Wed 8/20

6:00 am-8:33 pm

2 stops24h 33m

Ontario

Sat 9/13

6:50 pm-6:35 pm

2 stops37h 45m

$889

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Mon 9/15

12:50 pm-9:29 pm

2 stops42h 39m

Ontario

Sun 9/21

10:56 pm-4:25 pm

2 stops31h 29m

$1,133

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Mon 12/1

8:05 am-9:41 pm

2 stops23h 36m

Ontario

Wed 12/31

5:03 pm-8:10 pm

2 stops17h 07m

$1,482

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Wed 8/20

5:10 pm-1:41 pm

2 stops30h 31m

Ontario

Sat 9/13

2:54 pm-2:15 pm

2 stops37h 21m

$1,961

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Sun 7/20

6:40 pm-6:40 pm

3 stops34h 00m

Ontario

Sun 7/27

5:09 pm-1:50 am

3 stops22h 41m

$2,880

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Sun 9/14

4:05 pm-9:29 pm

2 stops39h 24m

$687

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Wed 7/16

9:30 am-4:19 pm

2 stops40h 49m

$743

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Thu 9/11

8:25 am-6:07 pm

2 stops19h 42m

$814

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Fri 9/12

6:05 am-5:29 pm

2 stops21h 24m

$910

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

Showing 1-10 of 12 results
1
2

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.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated June 17, 2025.
Qatar Airways
7.4
Good
3,591 reviews

Entertainment

7.4

Food

7.3

Overall

7.4

Comfort

7.4

Boarding

7.5

Crew

7.9

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.
Qatar Airways
7.4
Good
3,591 reviews
Qatar Airways
7.4
Good
3,591 reviews

Entertainment

7.4

Food

7.3

Overall

7.4

Comfort

7.4

Boarding

7.5

Crew

7.9

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.
United Airlines
7.4
Good
8,809 reviews
Qatar Airways
7.4
Good
3,591 reviews

Entertainment

7.4

Food

7.3

Overall

7.4

Comfort

7.4

Boarding

7.5

Crew

7.9

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.
American Airlines
7.2
Good
10,000 reviews
Qatar Airways
7.4
Good
3,591 reviews

Entertainment

7.4

Food

7.3

Overall

7.4

Comfort

7.4

Boarding

7.5

Crew

7.9

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.
Lufthansa
6.8
Okay
7,152 reviews
Qatar Airways
7.4
Good
3,591 reviews

Entertainment

7.4

Food

7.3

Overall

7.4

Comfort

7.4

Boarding

7.5

Crew

7.9

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.
British Airways
6.6
Okay
7,028 reviews
Qatar Airways
7.4
Good
3,591 reviews

Entertainment

7.4

Food

7.3

Overall

7.4

Comfort

7.4

Boarding

7.5

Crew

7.9

Reviews

1 / 20
6.0
Good

preeti,Jan 2025

DOH - PHL

Can improve a lot from food to crew training to entertainment etc.

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.

  • What are the cheapest airlines to fly from Bucharest to Ontario one-way?

    $687 is the cheapest one-way deal found within the past few days, from Air Serbia. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $814 and $910, respectively.

  • 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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