Had a horrendous sleep our final night in Meixco, possibly excitement for flying to Cuba the next day and also because loud music was being played outside and the noisy air con unit (and concern that it might cause an electrical fire). Got to airport super early as there was no traffic at 4.30am. Check in went way quicker than domestic and then we relaxed in a cafe for breakfast and then browsed the duty free. It was another excellent Interjet experience, really ...