For us!!! the closer to travel, the cheaper the price... I think they try to sell the higher priced seats and then what ever they do not sell they lower the price.. Of cource we are able to go out of jfk direct and use jet blue, not sure about others... have booked a month before we want to travel, and have gotten great prices. Of cource each day of the week is different, and we can pick which ever is the cheapest as we have a place on Island. Some people can only travel weekends. I assume we are lucky that way...