Just found this fare on http://delta.com $479 from Los Angeles to San Jose direct. If you don't mind taking the red eye. Leaves at 11:15 p.m. on August the 28th, arrives at SJO the morning of the 29th at 6:07 a.m. Returns on Sept. 4th and leaves at 7:31 a.m. If you have not booked your ticket, now may be a great time for the Labor Day festivities in San Jose and Jaco.
Sincerely,
Sid
On your trip to Costa Rica, do it "Doggy Style"
O.L.D. One Lucky Dogg Tours & Travel
http://oneluckydogg.com
850-390-4808 U.S.
011+506-7048-3760 C.R.