I booked through United and we were on our flight in San Juan and had to deplane for engine trouble. they kept telling us one hour, one hour. Wound up spending the night on our own dime. I wrote to united who gave me a $100 credit for the "trouble" but sent me to silver for the hotel refund. Still waiting, they had 3 planes flying that day and only one left san juan..... the St Thomas mid day flight also spent the night in San juan, that was on January 15th. Thought it might be easier than ferries.............. but never again unless i plan a few days in PR too.