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Otopeni Intl

$497+ Cheap flights from Ontario (ONT) to Otopeni Intl (OTP)

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 8/8. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — OTP
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from Ontario to Otopeni Intl

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Otopeni Intl (OTP). 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 29, 2025.

Round-trip from

$513
(Ovago)

One-way from

$497
(United Airlines)

Popular in

December

Cheapest in

October

Average price

$806
From Ontario to Bucharest Otopeni Intl
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One-way flight from Ontario to Bucharest Otopeni Intl
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Highest demand for flights based on searches. 9% potential increase in price ($74 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($31 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 Ontario to Otopeni Intl

Cheapest flights from Ontario to Otopeni Intl
Explore the most affordable flight options available from Ontario to Otopeni Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This Ovago 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2812:47 pmONT - OTP
2 stops25h 08mBritish Airways
Tue 11/118:00 amOTP - ONT
2 stops21h 41mBritish Airways
Deal found 7/29$513
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/266:38 pmONT - OTP
2 stops38h 52mUnited Airlines
Tue 11/115:55 amOTP - ONT
2 stops24h 49mUnited Airlines
Deal found 7/29$521
This United Airlines deal was found by Cheapflights users on 7/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/287:00 amONT - OTP
2 stops23h 45mMultiple Airlines
Tue 11/115:55 amOTP - ONT
3 stops21h 39mMultiple Airlines
Deal found 7/28$524
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.
Wed 10/291:15 pmONT - OTP
2 stops38h 45mDelta
Sun 11/91:55 pmOTP - ONT
2 stops36h 19mDelta
Deal found 7/29$626

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Otopeni Intl 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 29, 2025.
Use the filters below to find and compare flights from Ontario to Bucharest Otopeni Intl Airport that are best for you.

Fly from

Ontario

Fly to

Otopeni Intl

Route

Depart

Return

Price

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Tue 10/28

12:47 pm-10:55 pm

2 stops25h 08m

Bucharest Otopeni Intl

Tue 11/11

8:00 am-7:41 pm

2 stops21h 41m

$513

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Sun 10/26

6:38 pm-6:30 pm

2 stops38h 52m

Bucharest Otopeni Intl

Fri 11/14

2:50 pm-5:34 pm

2 stops36h 44m

$521

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Tue 10/28

7:00 am-3:45 pm

2 stops23h 45m

Bucharest Otopeni Intl

Tue 11/11

5:55 am-5:34 pm

3 stops21h 39m

$524

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Wed 10/29

1:15 pm-1:00 pm

2 stops38h 45m

Bucharest Otopeni Intl

Sun 11/9

1:55 pm-4:14 pm

2 stops36h 19m

$626

OntarioBucharest

ONT - OTP

ONTOTP

Ontario

Fri 8/8

6:39 pm-6:35 pm

2 stops37h 56m

$497

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Ontario to Otopeni Intl

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

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

Currently, November is the cheapest month in which you can book a flight from Ontario to Bucharest Otopeni Intl Airport (average of $604). Flying from Ontario to Bucharest Otopeni Intl Airport in June is currently the most expensive (average of $1,133). 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.

What is the cheapest time of day to fly from ONT to OTP?

Find hourly flight availability from Ontario to Otopeni Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

A simple way to save on the total cost of your ticket is to fly from Ontario to Bucharest Otopeni Intl Airport in the morning. If you’re flexible enough to do this you can expect to save up to 38% on your trip compared to booking a flight at noon.

Reviews of airlines servicing Otopeni Intl

Get insights into the airlines that provide service to Otopeni Intl. 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 Otopeni Intl. Reviews last updated July 29, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and British Airways from Ontario to Bucharest Otopeni Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,979 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,979 reviews
Delta
8.0
Very good
7,979 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,979 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
British Airways
6.6
Okay
7,208 reviews
Delta
8.0
Very good
7,979 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Otopeni Intl. 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 from for flights from Ontario to Bucharest Otopeni Intl?

    If you book a flight to Bucharest Otopeni Intl from Ontario, you will be flying from 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 Ontario to Bucharest Otopeni Intl per day from 0 different airlines.

  • What are the cheapest airlines flying from Ontario to Bucharest Otopeni Intl Airport round-trip?

    Our cheapest airline available from Ontario to Bucharest Otopeni Intl Airport is British Airways. Our recent data shows that you can find tickets from as low as $513 on this airline. Additional options worth looking into are United Airlines and Delta, starting at $521 and $626 round-trip.

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

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

  • How can I find direct flights from Ontario to Otopeni Intl?

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

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

    Yes. Cheapflights offers flight deals from Ontario to Otopeni Intl 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 Ontario to Bucharest Otopeni Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from Ontario to Bucharest Otopeni Intl Airport (average of $604). Flying from Ontario to Bucharest Otopeni Intl Airport in June is currently the most expensive (average of $1,133). 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 Otopeni Intl Airport?

Book flights to Bucharest Otopeni Intl Airport if you plan to visit one of these locations
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