That's the best price we could find for select routes on comparable carriers by $14. Book this travel deal by November 12. Buy Now at DealBase Tips On the DealBase landing page, click on "Alaska Airlines" in the top line to see this sale. (We found lower fares when booking.) We found this price on flights departing on December 10 from San Jose, CA (SJC) to San Diego, CA (SAN). All prices, dates, and booking details were valid at the time of publication. Book this travel deal by November 12 for travel form December 4 through March 7, 2020.