Cheap Flights from Cambridge (CBG) to Ontario (ONT)

Popular airlines from Cambridge (CBG) to Los Angeles - Ontario Intl. Airport (ONT)

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Frequently asked questions

How much does a flight from Cambridge (CBG) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Snag a cheap one-way flight or cheap return flight from Cambridge (CBG) to Los Angeles - Ontario Intl. Airport (ONT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Cambridge (CBG) to Los Angeles - Ontario Intl. Airport (ONT)?
The cheapest month to fly from CBG to ONT is , when demand is low. Off-peak season is usually when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Cambridge (CBG) to Los Angeles - Ontario Intl. Airport (ONT)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest CBG to ONT flight.
How many flights per day from Cambridge (CBG) to Los Angeles - Ontario Intl. Airport (ONT)?
Nonstop flights from Cambridge (CBG) to Los Angeles - Ontario Intl. Airport (ONT) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from CBG to ONT?
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 peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Cambridge (CBG) to Los Angeles - Ontario Intl. Airport (ONT)?
To avoid potential delays on the Cambridge (CBG) to Los Angeles - Ontario Intl. Airport (ONT) route, aim to travel before 3 PM. Departures after this hour have a 22% higher chance of being 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 Cambridge (CBG) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Booking your flight from CBG to ONT just before your getaway is typically more expensive. However, if you're flexible with your itinerary, you could land a cheap last-minute fare.
Is it cheaper to book a CBG to ONT flight and hotel package?
You can save money by booking a CBG to ONT flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. After selecting your ideal flights and accommodations, you can add extras such as tours, activities and car rentals.
Can I cancel or change the date of my flight from Cambridge (CBG) to Los Angeles - Ontario Intl. Airport (ONT)?
In most cases, you can modify or cancel your CBG to ONT flight. However, there may be additional charges, especially if your booking was made over 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you'd like further details, head to our Customer Service portal.

Travel information

Origin airport
Cambridge
Destination airport
Los Angeles - Ontario Intl.
Distance
5396 mi

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Cambridge to Ontario Flights

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

 

The best time to book a flight from Cambridge to Ontario

Sunday is one of the best days to book for cheap flights from Cambridge 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 Cambridge 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 Cambridge to Ontario 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 Cambridge 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 Cambridge 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.

 

Cambridge to Ontario Flights

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*Available to One Key members.