I bought tickets several months ago for May, United EWR/SXM RT, $422.50 p/p. However when I purchased, it was for flying down on Monday the 4th, returning Thursday the 14th. A few weeks later the Thursday return was cancelled, as usual with NO notice from them. I managed to get us on the Saturday the 16th later flight, which was listed as a lot more expensive with no additional fare on my part. As Boucharda says, the flights are pretty wide open, so I'd imagine fares my come down. But it's always a crapshoot.