₹18,183 Cheap Delta flights from Ontario to San Diego (ONT→SAN)

View ₹18,183 flight on Fri, 13 Mar 2026Opens in a new window

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Delta flights from Ontario to San Diego (ONT→SAN)

Prices were available within the past 7 days and start at ₹18,183 for one-way flights and ₹29,466 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 14 Apr - Mon, 20 Apr
ONT
Ontario
SAN
San Diego
₹29,466 Return, found 4 days ago
₹29,466
Return
found 4 days ago
Select Delta flight, departing Tue, 14 Apr from Ontario to San Diego, returning Mon, 20 Apr, priced at ₹29,466 found 4 days ago
Delta
Tue, 14 Apr - Mon, 20 Apr
ONT
Ontario
SAN
San Diego
₹40,943 Return, found 4 days ago
₹40,943
Return
found 4 days ago
Select Delta flight, departing Tue, 14 Apr from Ontario to San Diego, returning Mon, 20 Apr, priced at ₹40,943 found 4 days ago
Delta
Tue, 14 Apr - Mon, 20 Apr
ONT
Ontario
SAN
San Diego
₹41,340 Return, found 4 days ago
₹41,340
Return
found 4 days ago
Select Delta flight, departing Tue, 14 Apr from Ontario to San Diego, returning Mon, 20 Apr, priced at ₹41,340 found 4 days ago
Delta
Tue, 14 Apr - Mon, 20 Apr
ONT
Ontario
SAN
San Diego
₹43,167 Return, found 4 days ago
₹43,167
Return
found 4 days ago
Select Delta flight, departing Tue, 14 Apr from Ontario to San Diego, returning Mon, 20 Apr, priced at ₹43,167 found 4 days ago
Delta
Tue, 14 Apr - Mon, 20 Apr
ONT
Ontario
SAN
San Diego
₹46,152 Return, found 4 days ago
₹46,152
Return
found 4 days ago
Select Delta flight, departing Tue, 14 Apr from Ontario to San Diego, returning Mon, 20 Apr, priced at ₹46,152 found 4 days ago
Delta
Tue, 14 Apr - Mon, 20 Apr
ONT
Ontario
SAN
San Diego
₹47,705 Return, found 4 days ago
₹47,705
Return
found 4 days ago
Select Delta flight, departing Tue, 14 Apr from Ontario to San Diego, returning Mon, 20 Apr, priced at ₹47,705 found 4 days ago

Find the cheapest month to fly from Ontario (ONT) to San Diego (SAN)

August is typically the cheapest month to fly

From ₹14,438 - ₹57,103 per traveller.
Flight from Ontario to San Diego route information
Origin airport
Los Angeles - Ontario Intl.
Destination airport
San Diego Intl.
Distance
151 km

Frequently asked questions

How much is a Delta Air Lines flight from Los Angeles - Ontario Intl. Airport (ONT) to San Diego Intl. Airport (SAN)?
Landing cheap one-way Delta Air Lines flights from ONT to SAN from ₹18,183 on Expedia couldn't be easier — just filter by "Price (lowest to highest)." Or check out our affordable return fares from ₹29,466 for your next exciting holiday.**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 SAN with Delta Air Lines?
January is one of the cheapest months to travel to San Diego with Delta Air Lines. You could also find great prices on one-way and return tickets in November.
Does Delta Air Lines fly nonstop from Los Angeles - Ontario Intl. Airport (ONT) to San Diego Intl. Airport (SAN)?
Select our "Nonstop" filter when browsing for direct Delta Air Lines flights from ONT to SAN. You can also compare other carriers servicing the same nonstop trip.
What airports does Delta Air Lines fly into in San Diego?
Get on a Delta Air Lines flight from Los Angeles - Ontario Intl. Airport (ONT) to San Diego, and you're most likely to land at San Diego Intl. Airport (SAN). This is the airline's main hub in this destination.
Can I change or cancel my Delta Air Lines flight from Los Angeles - Ontario Intl. Airport (ONT) to San Diego Intl. Airport (SAN)?
Depending on your ticket type, a fee generally applies if you cancel or reschedule your booking more than 24 hours after confirmation. To secure flexible fares, select our "Changes included" or "No cancel fee" filter when you search for flights. For more information on cancelling or modifying your reservation, go to "Trips," select your flight and tick "Manage Booking."

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