Los Angeles - Alaska Airlines is returning to Mexico City with the launch of new service to Benito Juarez International Airport from two major California hubs: San Francisco International Airport and Los Angeles International Airport.

Later this fall, Alaska Airlines also will add service from San Diego International Airport to Mexico City, becoming the only airline to serve Mexico's capital from the three largest cities in California.

The airline said its launch of service to Mexico City kicks off the most significant network expansion in Alaska Air Group's 85-year history, which includes plans to add 29 new routes through the end of 2017.

"Service into Mexico City is key to our strategy to becoming the go-to airline for travelers on the West Coast," Annabel Chang, the vice president for Alaska Airlines' Bay Area, said in a statement.

The year-round nonstop service will operate once daily between Mexico City and San Francisco, twice daily between Mexico City and Los Angeles and once daily between Mexico City and San Diego starting November 6.

The new service is the ninth destination Alaska serves to Mexico from California, including Cancun, Ixtapa/Zihuatanejo, Loreto, Los Cabos, Manzanillo, Mazatlán, Puerto Vallarta and Guadalajara. Alaska began flying to Mexico in 1988 and today operates more than 100 flights a week. Alaska previously served Mexico City from 2005 to 2015.

The Mexico City flights will operate using Boeing 737 and Embraer 175 aircraft.