Cheap Flights from Cardiff (CWL) to Ontario (ONT)

Popular airlines from Cardiff International Airport (CWL) to Los Angeles - Ontario Intl. Airport (ONT)

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Frequently asked questions

How much does a flight from Cardiff Intl. Airport (CWL) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Lock in a cheap one-way flight or cheap return flight from Cardiff Intl. Airport (CWL) to Los Angeles - Ontario Intl. Airport (ONT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Cardiff Intl. Airport (CWL) to Los Angeles - Ontario Intl. Airport (ONT)?
The cheapest month to fly from CWL to ONT is , when demand is low. Off-peak season is generally when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Cardiff Intl. Airport (CWL) to Los Angeles - Ontario Intl. Airport (ONT)?
To find the cheapest airline that'll fly you from CWL to ONT, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Cardiff Intl. Airport (CWL) to Los Angeles - Ontario Intl. Airport (ONT)?
You'll need to take a flight with a layover when traveling from Cardiff Intl. Airport (CWL) to Los Angeles - Ontario Intl. Airport (ONT). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from CWL to ONT?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change depending on various factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Cardiff Intl. Airport (CWL) to Los Angeles - Ontario Intl. Airport (ONT)?
To touch down at Los Angeles - Ontario Intl. Airport (ONT) on time, select a flight that takes off from Cardiff Intl. Airport (CWL) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Cardiff Intl. Airport (CWL) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Last-minute bookings from CWL to ONT are generally more expensive. To lock in the lowest rates, start searching for flights ahead of time. That said, if you can play around with your travel dates, it's possible to land a cheap fare right before your journey.
Is it cheaper to book a CWL to ONT flight and hotel package?
Securing a CWL to ONT flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Choose from our extensive range of stays and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Cardiff Intl. Airport (CWL) to Los Angeles - Ontario Intl. Airport (ONT)?
In most instances, you're able to reschedule or cancel your CWL to ONT flight. However, there may be additional charges, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you'd like more information, head to our Customer Service portal.

Travel information

Origin airport
Cardiff Intl.
Destination airport
Los Angeles - Ontario Intl.
Distance
5318 mi

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Cardiff to Ontario Flights

The cheapest times to fly from Cardiff to Ontario

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 Cardiff to Ontario are during the month of . You can find some of the cheapest flights from Cardiff to Ontario with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Cardiff to Ontario

Sunday is one of the best days to book for cheap flights from Cardiff to Ontario: 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 Cardiff to Ontario

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 Cardiff to Ontario in 2025. 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 Cardiff to Ontario 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 Cardiff to Ontario 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.

 

Cardiff to Ontario Flights

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*Available to One Key members.