Passengers on the first flight out of Hobby Airport’s new international concourse were greeted bright and early Thursday morning by a line of cheering Southwest Airlines’ employees, whooping and hollering as travelers entered the concourse.

A mariachi band serenaded them as they waited at the gate. And before boarding their 8 a.m. flight for Cancún, fliers got a handshake from Mayor Annise Parker and Southwest Chief Executive Gary Kelly.

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