US-based legacy carrier 
Delta Air Lineshas announced that it will be expanding its partnership with American fast-food chain Shake Shack, as it will be offering first-class passengers the option to pre-select a Shake Shack cheeseburger meal on select flights out of Los Angeles International Airport (LAX). This new meal service will also be offered on flights out of Boston Logan International Airport (BOS), Atlanta Hartsfield-Jackson International Airport (ATL), Seattle-Tacoma International Airport (SEA), and New York LaGuardia Airport (LGA).