cF, I too wanted to go LIM-SJO-GUA so that I wouldnt have to spend the night in LIM, but the fare was $900+, i found that going LIM-PTY(lacsa)6am and after a 5+hr layover PTY-GUA with Copa it cost $680. My final tally for the LP carriers were $2350.Using a VUSA to get to MIA on TW which cost me $199 r/t with 3 legs on a Sun to Thur(no Sat).Could have saved another $45 but couldnt get the Aeropostal flight to be tkted here overseas. If you find a cheaper way LIM-GUA using Lacsa & Copa please post.