Delta Cheap Flights from Ontario to San Jose: DL ONT→SJC

View HK$2,509 flight on Wed, 31 Dec 2025Opens in a new window
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Prices were available within the past 7 days and start at HK$2,509 for one-way flights and HK$5,801 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 31 Dec - Sun, 4 Jan
ONT
Ontario
SJC
San Jose
HK$5,801 Return, found 2 days ago
HK$5,801
Return
found 2 days ago
Select Delta flight, departing Wed, 31 Dec from Ontario to San Jose, returning Sun, 4 Jan, priced at HK$5,801 found 2 days ago
Delta
Wed, 31 Dec - Sun, 4 Jan
ONT
Ontario
SJC
San Jose
HK$5,953 Return, found 2 days ago
HK$5,953
Return
found 2 days ago
Select Delta flight, departing Wed, 31 Dec from Ontario to San Jose, returning Sun, 4 Jan, priced at HK$5,953 found 2 days ago
Delta
Wed, 31 Dec - Sun, 4 Jan
ONT
Ontario
SJC
San Jose
HK$6,080 Return, found 2 days ago
HK$6,080
Return
found 2 days ago
Select Delta flight, departing Wed, 31 Dec from Ontario to San Jose, returning Sun, 4 Jan, priced at HK$6,080 found 2 days ago
Delta
Wed, 31 Dec - Sun, 4 Jan
ONT
Ontario
SJC
San Jose
HK$6,188 Return, found 2 days ago
HK$6,188
Return
found 2 days ago
Select Delta flight, departing Wed, 31 Dec from Ontario to San Jose, returning Sun, 4 Jan, priced at HK$6,188 found 2 days ago
Delta
Wed, 31 Dec - Sun, 4 Jan
ONT
Ontario
SJC
San Jose
HK$6,232 Return, found 2 days ago
HK$6,232
Return
found 2 days ago
Select Delta flight, departing Wed, 31 Dec from Ontario to San Jose, returning Sun, 4 Jan, priced at HK$6,232 found 2 days ago
Delta
Wed, 31 Dec - Sun, 4 Jan
ONT
Ontario
SJC
San Jose
HK$6,338 Return, found 2 days ago
HK$6,338
Return
found 2 days ago
Select Delta flight, departing Wed, 31 Dec from Ontario to San Jose, returning Sun, 4 Jan, priced at HK$6,338 found 2 days ago
Ontario to San Jose route information
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Norman Y. Mineta San Jose Intl.
Distance
534 km
Average flight time
1 hour 15 mins

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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)?
You can discover budget-friendly return Delta Air Lines flights from HK$5,801 from ONT to SJC by sorting your results from "Price (lowest to highest)" on Expedia. Or look for deals from HK$2,509 for a one-way journey.**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?
Look for round-trip or one-way flights to San Jose in April or November. You could find an affordable fare with Delta Air Lines during these quieter months.
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, hit search and check the "Nonstop" filter on Expedia to browse any direct flights from ONT to SJC with Delta Air Lines or other carriers.
What airports does Delta Air Lines fly into in San Jose?
Norman Y. Mineta San Jose Intl. Airport (SJC) is the main San Jose hub for Delta Air Lines flights from Los Angeles - Ontario Intl. Airport (ONT).
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)?
Changes are often free within 24 hours of booking, but your airline may charge you after that. For more information about modifying your reservation, go to your "Trips," select your flight and click on "Manage Booking." If you want the freedom to make changes without being charged, tick the "Changes included" or "No cancel fee" filter when planning your next break.
*Available to Expedia members.