In 2007, the Airbus A380 began service as the largest passenger plane ever put into service. The plane can seat 525 fliers in three classes! But airlines and airports have been slow to add the superjumbo aircraft to their U.S. routes. So many travelers still haven’t glimpsed these famous planes. The following airports are equipped to handle these colossal jets, according to USA Today: Los Angeles, Montreal, New York (JFK), Toronto, and Washington Dulles. Beginning May 10, San Francisco will welcome the A380, on Lufthansa’s route to Frankfurt, Germany, reports Jaunted. Air France will add flights on the giant of the sky from here to Paris in the summer. Starting…