I am trying to book a flight from Gulfport-San Jose and can't get the best setup through delta.com. If I go through delta.com, the best return I can get leaves at 0855 and is a code share on CO. If I go through travelocity or expedia I can get the same delta flight outbound, but can get a CO flight leaving at 1235 out of San Jose for a couple bucks cheaper. I would like the later flight for the fact I can sleep in a little after a long night of partying, but don't know if one 3rd party site offers any advantages over another...any help would be nice! Thanks