SFO-SEA: 3 daily round trips, beginning March 18
LAX-SFO: 3 daily round trips, beginning April 8, 4th flight added May 11

Connecting flights to/from JFK and IAD will be available via LAX or SFO.
Connecting flights to/from LAS and SAN will be available via SFO.

Intro fares
SFO: $77 main cabin, $177 first class
LAX: $99 main cabin, $199 first class