Here’s why Tripadvisor shuttered the beloved seat-rating site last month, and what to use instead if you want to travel comfortably. Frequent flyers and travel hackers who visited SeatGuru on October 31 were met with an unpleasant surprise: a shuttered website directing them to Tripadvisor’s homepage. After nearly a quarter-century in operation, the beloved website that helped fliers determine which seats to grab, and which to avoid, is gone. Here’s why, and three SeatGuru alternatives to try now.