Aeromexico is taking a lesson from cell-phone companies by introducing its own version of a “Family Plan.” Buy three or four tickets on select routes between the U.S. and Mexico and receive one ticket – for an adult or a child – for free. Some destinations included in this offer are Los Cabos, Guadalajara, Cancun, Leon, Monterrey, and Mexico City. Fly from major U.S. cities like Las Vegas, Houston, New York, Miami, Seattle, and many more.

Though you may travel whenever you wish, some blackout dates do apply and tickets must be...more