Bad weather? Airline strike? Planes stacked up over O’Hare? For a minute-by-minute look at where Uncle Henry’s flight is (and how soon he’ll be landing for the family reunion), just type in his carrier and flight number (or city and time) and see his plane’s whereabouts via detailed map or text. Elsewhere on the Trip.com site, the Colorado-centered team offers the usual travel stuff (car rentals, hotel reservations, vacation packages), but the Flight Tracker is the thing that’ll really send you.