I'm beginning my search for a Aug '13 trip to Cabo San Lucas. I currently have the BofA AS (~50k + companion pass), US Air MC (~50k + 2 companion certs), which might be my best option, but i also have some UR (~100k).

I'm thinking i could probably use my companion certs (coach is fine) since they expire in May (assuming i could book by may for aug travel).

What other options might I have with some value? UR -> BA?, UA (100k)? Any southern cali airport would be fine (SNA, LAX, SAN). I'm sorta leaning toward either AS or US so i could use my certs, but since BA is distance based, maybe I could just use those if the value is right.