The Delta-Aeromexico transborder JV began offering ultra-low-cost fares March 5 as Aeromexico launched its “branded fares” concept and Delta Air Lines touted the increasing range of basic economy fares on what is now more than 50% of Delta’s US-Mexico flights. Delta had already offered basic economy fares on flights to Cancun, Puerto Vallarta and Cozumel; the new route expansion includes several new Guadalajara and Mexico City flights, Delta said, adding it expects to have basic economy available on its entire global network by the end of 2018. Aeromexico said its new fare structure will be available on domestic flights in Mexico, as well as flights to and from the US and Canada. Beyond basic fare, Aeromexico’s new fare structure includes 5 progressively more value-added offerings. <br/>