393 miles

http://maps.google.com/maps?f=d&hl=en&geocode=&saddr=Daly+City,+CA&daddr=33.979809,-118.212891&mrcr=0&mrsp=1&sz=7&mra=dme&sll=34.578952,-115.982666&sspn=6.312107,8.448486&ie=UTF8&z=7&om=1