Alaska Airlines via DealBase offers 1-way nationwide flights, with prices starting from $48.30. That's the lowest price we could find for select routes by at least $14. Book this travel deal by June 3 for travel from August 20 through October 30. Buy Now Tips On the DealBase landing page, click "Alaska Airlines" in the top line to see this sale. We found this price on flights departing September 3 from San Jose, CA (SJC) with arrival in San Diego, CA (SAN). All prices, dates, and booking details were valid at the time of publication.