Just entered a search as follows: 2pax EWR-SJU 5/1 - 5/8. 1st lowest fare shown with a big yellow star is 760.12 with outbound connecting through CLE. Next best prices (both with yellow stars!) 1,173.58 connecting both ways through IAH. Now, search again but by schedule and 2 non-stops at convenient times price out at $555!! Why didn't this come up with the first search?