Looking for cheap flights from Ontario to San Diego? PointsYeah scans award availability across major airline and bank transfer programs in one place, so travelers can compare the lowest points and cash routes faster. Instead of searching each airline separately, users can see pricing from programs like Chase, Amex, Capital One, Citi, and Bilt side by side.

Award prices from Ontario to San Diego vary by season and date, but economy flights can start at different mileage levels one way, with premium cabins available at higher mileage levels. The live search above allows filtering by cabin, airline, stops, or maximum points to find the best award flights from Ontario to San Diego for specific travel dates.