Cheap Flights from Ontario (ONT) to Belfast (BFS)

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Belfast International Airport (BFS)

Flights from Ontario (ONT) to Belfast (BFS)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Belfast Intl.
Distance
5085 mi

Ontario to Belfast Flights

The cheapest times to fly from Ontario to Belfast

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Ontario to Belfast are during the month of . You can find some of the cheapest flights from Ontario to Belfast with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Ontario to Belfast

Sunday is one of the best days to book for cheap flights from Ontario to Belfast: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Ontario to Belfast

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Ontario to Belfast in 2026. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Ontario to Belfast flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Ontario to Belfast airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Los Angeles - Ontario Intl. Airport (ONT) to Belfast Intl. Airport (BFS) cost?
Secure a cheap one-way flight or cheap return flight from Los Angeles - Ontario Intl. Airport (ONT) to Belfast Intl. Airport (BFS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Los Angeles - Ontario Intl. Airport (ONT) to Belfast Intl. Airport (BFS)?
is the least expensive month to fly from ONT to BFS. Planning your trip for the off-season is often the key to landing a great deal.
What is the cheapest airline that flies from Los Angeles - Ontario Intl. Airport (ONT) to Belfast Intl. Airport (BFS)?
To find the cheapest airline that'll fly you from ONT to BFS, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Los Angeles - Ontario Intl. Airport (ONT) to Belfast Intl. Airport (BFS)?
Nonstop flights from Los Angeles - Ontario Intl. Airport (ONT) to Belfast Intl. Airport (BFS) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ONT to BFS?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Los Angeles - Ontario Intl. Airport (ONT) to Belfast Intl. Airport (BFS)?
To avoid potential delays on the Los Angeles - Ontario Intl. Airport (ONT) to Belfast Intl. Airport (BFS) route, aim to travel before 3 PM. Departures after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Los Angeles - Ontario Intl. Airport (ONT) to Belfast Intl. Airport (BFS) last-minute?
Booking your plane ticket from ONT to BFS shortly before your journey is generally more expensive. But if you're flexible with your itinerary, you could grab a cheap last-minute fare.
Is it cheaper to book an ONT to BFS flight and hotel package?
Compared with arranging hotels and flights separately, booking an ONT to BFS flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one place will take the hassle out of planning your trip. Simply pick your flights and choose from our wide range of stays, then tailor your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Los Angeles - Ontario Intl. Airport (ONT) to Belfast Intl. Airport (BFS)?
In most instances, you're able to cancel or reschedule your ONT to BFS flight. However, there may be additional fees, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you want more information, go to our Customer Service portal.

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*Available to One Key members.