Southwest Airlines' presence in Mexico and the Caribbean is getting a boost in the carrier's latest schedule update. The airline announced three new routes — and the elimination of one domestic route — as it extended its booking schedule through April 8. The additions are: Austin-Bergstrom International Airport (AUS)-Luis Muñoz Marin International Airport (SJU) in San Juan, Puerto Rico St. Louis Lambert International Airport (STL)-Los Cabos International Airport (SJD) in Mexico… (thepointsguy.com) 更多...