$162 Cheap Delta flights Ontario (ONT) to San Jose (SJC)

View $162 flight on Wed, Aug 13, 2025Opens in a new window

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$162 Cheap Delta flights Ontario (ONT) to San Jose (SJC)

Prices were available within the past 7 days and start at $162 for one-way flights and $259 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Oct 7 - Tue, Oct 14
ONT
Ontario
SJC
San Jose
$259 Roundtrip, found 5 days ago
$259
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Oct 7 from Ontario to San Jose, returning Tue, Oct 14, priced at $259 found 5 days ago
Flights from Ontario (ONT) to San Jose (SJC)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Norman Y. Mineta San Jose Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Popular airline
Southwest Airlines
Distance
333 mi
Average flight time
1 hour 10 mins

Frequently asked questions

How much is a Delta Air Lines flight from Los Angeles - Ontario Intl. Airport (ONT) to Norman Y. Mineta San Jose Intl. Airport (SJC)?
Use the "Price (lowest to highest)" filter on Expedia to search for cheap Delta Air Lines return flights from $259 from ONT to SJC. Affordable one-way options from $162 are available as well.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from ONT to SJC with Delta Air Lines?
Delta Air Lines flights to San Jose are generally more affordable in the quieter months of April and November. Whether you're after a one-way or a return ticket, you could score a better deal then.
What is the cheapest time to book flights from Los Angeles - Ontario Intl. Airport (ONT) to Norman Y. Mineta San Jose Intl. Airport (SJC) with Delta Air Lines?
To find cheap Delta Air Lines fares from Los Angeles - Ontario Intl. Airport (ONT) to Norman Y. Mineta San Jose Intl. Airport (SJC), start searching one to three months before your intended departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also impact the price you pay. Sunday tends to be the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by choosing to book on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Delta Air Lines fly nonstop from Los Angeles - Ontario Intl. Airport (ONT) to Norman Y. Mineta San Jose Intl. Airport (SJC)?
Fill in your dates, press search and select the "Nonstop" filter on Expedia to find any direct flights from ONT to SJC with Delta Air Lines or other airlines.
What is the earliest Delta Air Lines flight from ONT to SJC?
To find the earliest departures from ONT to SJC with Delta Air Lines, filter your search by "Early Morning" and "Morning." Choosing an early flight generally means you'll experience fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Delta Air Lines fly into in San Jose?
Norman Y. Mineta San Jose Intl. Airport (SJC) is the primary San Jose gateway for Delta Air Lines flights from Los Angeles - Ontario Intl. Airport (ONT).
Why fly with Delta Air Lines from ONT to SJC?
With an excellent in-flight experience and a rewarding loyalty program, Delta Air Lines is a popular option for many passengers heading from ONT to SJC. What's more, if you're a Delta SkyMiles and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which you can put toward future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Delta Air Lines flight from Los Angeles - Ontario Intl. Airport (ONT) to Norman Y. Mineta San Jose Intl. Airport (SJC)?
Depending on the type of fare you purchased, a fee may apply if you change or cancel your flight more than 24 hours after it's been confirmed. To find flexible fares, select our "Changes included" or "No cancel fee" filter while looking for flights. For more information on canceling or changing your reservation, go to "Trips," select your flight and click on "Manage Booking."

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*Available to One Key members.