Save at least $9 on over 350 routes nationwide. Buy Now at DealBase Tips On the DealBase landing page, click on "Alaska Airlines" in the top line to see this sale. We found this price on flights departing on December 10 from San Jose, CA (SJC) to San Diego, CA (SAN). Book this travel deal by November 12 for flights from December 4, 2019, through March 7, 2020. All prices, dates, and booking details were valid at the time of publication.