Direct flights from Ontario to San Diego
1 nonstop flight a week on 1 airline. Zero layovers — one hop from ONT to SAN.
Flight time: about 23m nonstop
Which days does it fly?
When does it fly?
Departure times in Ontario local time, from flights observed over the last 7 days.
| Flight | Departs | Duration | Days |
|---|---|---|---|
| Southwest SWA1887 | 4:45p | 23m | Thu |
Southwest
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The route
One hop: ONT → SANDrag to pan · scroll with ⌘/Ctrl to zoom · arrow keys when focused
Nonstop from Ontario (ONT) to San Diego (SAN)
Ontario International Airport (ONT) has 1 nonstop flight a week to San Diego (SAN), operated by Southwest. No layovers, no connections — one hop out of ONT and you're there.
This route flies on Thursday — check the schedule grid above before you pick a travel day. Route data updated August 2026 from observed departures.
Route data updated August 2026 from observed flight departures. Schedules change — always confirm with the airline before booking.
How long is the flight from Ontario to San Diego?
The nonstop flight from Ontario (ONT) to San Diego (SAN) takes about 23m in the air, based on recently observed nonstop departures.