Seattle is the only U.S. World Cup host city seeing fewer travelers flying in, according to Bloomberg. Online flight bookings for Seattle are down 21% from the same time last year, compared to New York, which saw a 7% increase, and Houston, which saw an 11% increase. But former Seattle Sounders announcer Ross Fletcher dismissed the numbers as “nonsense” on “The Jake and Spike Show” on KIRO Newsradio. “That’s just relative. That’s nonsense,” he s…