Save at least $15 on over 575 routes in early 2020. Buy Now at DealBase Tips On the DealBase landing page, click "Alaska Airlines" in the top line to see this sale. We found this price on flights departing from Los Angeles, CA (LAX) with arrival in San Francisco, CA (SFO) on January 7, 2020. All prices, dates, and booking details were valid at the time of publication. Book this travel deal today for travel from January 7, 2020, through March 7, 2020.