Title: CA $195 Cheap Alaska Airlines fights from Ontario to San Diego - Expedia.ca

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# CA $195 Cheap Alaska Airlines fights from Ontario (ONT) to San Diego (SAN)

[View CA $195 flight on Sat, Apr 18, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:ONT,to:SAN,departure:18/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:194.90&airProductToken=AQpHCiIIwaYBEgQzMjczGK6bASDylAEoutuKAzCy3IoDOFhAAFgBCiEIwaYBEgQzMDQ3GPKUASCSaCiG3YoDMO3digM4WEABWAESCggBEAEYASoCQVMYASIECAEQASgEMAE) 

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## Alaska Airlines flights from Ontario to San Diego (ONT→SAN)

Prices were available within the past 7 days and start at CA $195 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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

### August is typically the cheapest month to fly

From CA $228 - CA $903 per traveller.

## Alternative airports near San Diego

Prices were available within the past 7 days. Prices and availability are subject to change.

[](https://www.expedia.ca/Flights-Search?leg1=from:ONT,to:TIJ,departure:12/02/2026TANYT&leg2=from:TIJ,to:ONT,departure:01/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE)

TIJ

General Abelardo L. Rodriguez Intl.

Cheapest

26 min

[Flights from CA $926

](https://www.expedia.ca/Flights-Search?leg1=from:ONT,to:TIJ,departure:12/02/2026TANYT&leg2=from:TIJ,to:ONT,departure:01/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 

__Flight from Ontario to San Diego (ONT - SAN) route information__
| Origin airport      | Los Angeles - Ontario Intl. |
| ------------------- | --------------------------- |
| Destination airport | San Diego Intl.             |
| Distance            | 151 km                      |

\*Available to Expedia members.