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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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
BUH — ONT
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 July 31, 2025.

Round-trip from

$829
(lol.travel)

One-way from

$687
(Air Serbia)

Popular in

July

Cheapest in

March

Average price

$1,001
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 ($53 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 31, 2025.

This lol.travel deal was found by Cheapflights users on 7/30. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/296:05 amOTP - ONT
2 stops21h 24mUnited Airlines
Sat 9/131:42 pmONT - OTP
2 stops23h 48mUnited Airlines
Deal found 7/30$829
This Gotogate deal was found by Cheapflights users on 7/30. 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.
Wed 10/298:05 amOTP - ONT
2 stops23h 37mBritish Airways
Thu 11/64:47 pmONT - OTP
2 stops16h 43mBritish Airways
Deal found 7/30$846
This Delta deal was found by Cheapflights users on 7/29. 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.
Fri 8/17:00 amOTP - ONT
2 stops26h 42mDelta
Mon 8/117:05 amONT - OTP
2 stops19h 05mDelta
Deal found 7/29$1,220
This Air Serbia deal was found by Cheapflights users on 7/30. 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 8/2512:50 pmOTP - ONT
2 stops43h 09mAir Serbia
Mon 9/810:56 pmONT - OTP
2 stops31h 29mAir Serbia
Deal found 7/30$1,274
This Iberia deal was found by Cheapflights users on 7/30. 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.
Fri 10/38:25 amOTP - ONT
2 stops20h 29mMultiple Airlines
Sat 10/2510:57 amONT - OTP
2 stops19h 08mMultiple Airlines
Deal found 7/30$1,364
This lol.travel deal was found by Cheapflights users on 7/30. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/295:10 pmOTP - ONT
2 stops30h 29mQatar Airways
Fri 9/122:54 pmONT - OTP
2 stops37h 21mQatar Airways
Deal found 7/30$1,777

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 July 31, 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

Fri 8/29

6:05 am-5:29 pm

2 stops21h 24m

Ontario

Sat 9/13

1:42 pm-11:30 pm

2 stops23h 48m

$829

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Wed 10/29

8:05 am-10:42 pm

2 stops23h 37m

Ontario

Thu 11/6

4:47 pm-7:30 pm

2 stops16h 43m

$846

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Mon 8/25

12:50 pm-9:59 pm

2 stops43h 09m

Ontario

Mon 9/8

10:56 pm-4:25 pm

2 stops31h 29m

$1,274

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Fri 10/3

8:25 am-6:54 pm

2 stops20h 29m

Ontario

Sat 10/25

10:57 am-4:05 pm

2 stops19h 08m

$1,364

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Fri 8/29

5:10 pm-1:39 pm

2 stops30h 29m

Ontario

Fri 9/12

2:54 pm-2:15 pm

2 stops37h 21m

$1,777

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Tue 9/2

12:50 pm-9:29 pm

2 stops42h 39m

$687

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Thu 9/4

8:25 am-11:56 am

2 stops37h 31m

$832

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Thu 8/7

6:05 am-8:54 pm

2 stops24h 49m

$850

BucharestOntario

OTP - ONT

OTPONT

Bucharest Otopeni Intl

Wed 9/3

6:05 am-5:29 pm

2 stops21h 24m

$911

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

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.

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 July 31, 2025.
See what other customers who have flown with Qatar Airways, United Airlines, and American Airlines from Bucharest to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qatar Airways
7.4
Good
3,609 reviews

Comfort

7.4

Boarding

7.5

Crew

7.9

Entertainment

7.4

Overall

7.4

Food

7.3

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
3,609 reviews
Qatar Airways
7.4
Good
3,609 reviews

Comfort

7.4

Boarding

7.5

Crew

7.9

Entertainment

7.4

Overall

7.4

Food

7.3

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
8,900 reviews
Qatar Airways
7.4
Good
3,609 reviews

Comfort

7.4

Boarding

7.5

Crew

7.9

Entertainment

7.4

Overall

7.4

Food

7.3

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
3,609 reviews

Comfort

7.4

Boarding

7.5

Crew

7.9

Entertainment

7.4

Overall

7.4

Food

7.3

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
7,275 reviews
Qatar Airways
7.4
Good
3,609 reviews

Comfort

7.4

Boarding

7.5

Crew

7.9

Entertainment

7.4

Overall

7.4

Food

7.3

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
7,222 reviews
Qatar Airways
7.4
Good
3,609 reviews

Comfort

7.4

Boarding

7.5

Crew

7.9

Entertainment

7.4

Overall

7.4

Food

7.3

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 $832 and $850, 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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