It is a Sunday, so it is a busy travel day for people wanting to position themselves the day
before the work week starts. Delta has the lower inventory zeroed out to at least K class.
Checking other options, it appears the lowest fare is somewhere in the $208.00. Jet
Blue into Oakland is as low at $143.00. I would not expect Delta to open up lower inventory
so you need to decide if $300.00 is worth it on Delta.