Thanks everyone! Yes, we are looking at Jet Blue primarily for routing to get us home. We can get a good flight TO SXM on United, but coming home, arugh! Jet Blue does have a better schedule for our return flight. These two one way flights work out to less than our original AA flight which is just a bonus because we will have to drive to PHX (where before we could fly right out of Yuma), but that is NOT a big deal.

All the available AA routings are just awful, and since I'm not hearing anything horrible about Jet Blue, this combo might work. As a funny aside, the two airline option is significantly less expensive than flying Jet Blue round trip! It seems to be because on JB we leave PHX a few minutes after midnight so it is a Saturday flight (and many $$$$ more than the same flight on Friday) where on United we leave a few minutes before midnight making it a Friday flight (also much less expensive than the Saturday flight! I'm guessing that might be due to the US Thanksgiving holiday. Matters not to us, we will have eaten our turkey in Canada in October!