Popular airlines from Oakland Intl. Airport (OAK) to Los Angeles - Ontario Intl. Airport (ONT)
Southwest AirlinesSouthwest Airlines
Alaska AirlinesAlaska Airlines
DeltaDelta
Hawaiian AirlinesHawaiian Airlines
Today's featured flight deals from Oakland Intl. Airport (OAK) to Los Angeles - Ontario Intl. Airport (ONT)
- Oakland (OAK) to Ontario (ONT).Southwest Airlines, nonstop.Departing on Mon, Dec 22 at 6:10am from Oakland, arriving at 7:30am in Ontario.Returning on Sun, Jan 4 at 6:20am from Ontario, arriving at 7:45am in Oakland.Select Southwest Airlines flight departing on Mon, Dec 22 at 6:10am from Oakland, returning on Sun, Jan 4 at 6:20am from Ontario priced at $41140% less than typical$411
- Oakland (OAK) to Ontario (ONT).Southwest Airlines, nonstop.Departing on Mon, Dec 22 at 3:25pm from Oakland, arriving at 4:45pm in Ontario.Returning on Sun, Jan 4 at 6:20am from Ontario, arriving at 7:45am in Oakland.Select Southwest Airlines flight departing on Mon, Dec 22 at 3:25pm from Oakland, returning on Sun, Jan 4 at 6:20am from Ontario priced at $41140% less than typical$411
- Oakland (OAK) to Ontario (ONT).Southwest Airlines, nonstop.Departing on Fri, Jan 2 at 6:10am from Oakland, arriving at 7:30am in Ontario.Returning on Tue, Jan 6 at 3:25pm from Ontario, arriving at 7:45pm in Oakland.Select Southwest Airlines flight departing on Fri, Jan 2 at 6:10am from Oakland, returning on Tue, Jan 6 at 3:25pm from Ontario priced at $27550% less than typical$275
- Oakland (OAK) to Ontario (ONT).Southwest Airlines, nonstop.Departing on Wed, Jan 21 at 2:45pm from Oakland, arriving at 4:05pm in Ontario.Returning on Sun, Jan 25 at 10:00am from Ontario, arriving at 11:30am in Oakland.Select Southwest Airlines flight departing on Wed, Jan 21 at 2:45pm from Oakland, returning on Sun, Jan 25 at 10:00am from Ontario priced at $19355% less than typical$193
- Oakland (OAK) to Ontario (ONT).Southwest Airlines, nonstop.Departing on Sun, Dec 28 at 10:05am from Oakland, arriving at 11:25am in Ontario.Returning on Thu, Jan 1 at 3:55pm from Ontario, arriving at 5:15pm in Oakland.Select Southwest Airlines flight departing on Sun, Dec 28 at 10:05am from Oakland, returning on Thu, Jan 1 at 3:55pm from Ontario priced at $41130% less than typical$411
- Oakland (OAK) to Ontario (ONT).Southwest Airlines, nonstop.Departing on Thu, Jan 15 at 12:25pm from Oakland, arriving at 1:45pm in Ontario.Returning on Mon, Jan 19 at 6:00am from Ontario, arriving at 7:25am in Oakland.Select Southwest Airlines flight departing on Thu, Jan 15 at 12:25pm from Oakland, returning on Mon, Jan 19 at 6:00am from Ontario priced at $28040% less than typical$280
- Oakland (OAK) to Ontario (ONT).Southwest Airlines, nonstop.Departing on Thu, Dec 25 at 6:10pm from Oakland, arriving at 7:30pm in Ontario.Returning on Mon, Dec 29 at 6:20am from Ontario, arriving at 7:45am in Oakland.Select Southwest Airlines flight departing on Thu, Dec 25 at 6:10pm from Oakland, returning on Mon, Dec 29 at 6:20am from Ontario priced at $41130% less than typical$411
- Oakland (OAK) to Ontario (ONT).Southwest Airlines, nonstop.Departing on Mon, Dec 29 at 7:55pm from Oakland, arriving at 9:20pm in Ontario.Returning on Mon, Jan 5 at 9:50am from Ontario, arriving at 11:15am in Oakland.Select Southwest Airlines flight departing on Mon, Dec 29 at 7:55pm from Oakland, returning on Mon, Jan 5 at 9:50am from Ontario priced at $31935% less than typical$319
- Oakland (OAK) to Ontario (ONT).Southwest Airlines, nonstop.Departing on Thu, Jan 8 at 7:00am from Oakland, arriving at 8:20am in Ontario.Returning on Sun, Jan 11 at 10:00am from Ontario, arriving at 11:30am in Oakland.Select Southwest Airlines flight departing on Thu, Jan 8 at 7:00am from Oakland, returning on Sun, Jan 11 at 10:00am from Ontario priced at $24640% less than typical$246
Cheap Flights from Oakland to Ontario (OAK-ONT)
Prices were available within the past 7 days and start at $86 for one-way flights and $171 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.
Find the cheapest month to fly from Oakland (OAK) to Ontario (ONT)
September is typically the cheapest month to fly
Alternative airports near Ontario
Prices were available within the past 7 days. Prices and availability are subject to change.
Origin airport | Oakland Intl. |
|---|---|
Destination airport | Los Angeles - Ontario Intl. |
Airlines serving | Alaska Airlines, Delta, Hawaiian Airlines, Southwest Airlines |
Roundtrip price | $171 |
Distance | 361 mi |
Average flight time | 1 hour 20 mins |
Oakland to Ontario Flights
The cheapest times to fly from Oakland 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 Oakland to Ontario are during the month of January. You can find some of the cheapest flights from Oakland to Ontario with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Oakland to Ontario
Sunday is one of the best days to book for cheap flights from Oakland 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 Oakland 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 Oakland to Ontario in 2026. You can also book with separate airlines for your outbound and return journeys, from $86 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 Oakland 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 Oakland 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.
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