Alaska Airlines is offering ice cream and warm cookies on new long-haul flights, but flight attendants say understaffing is making the service unsustainable.

Alaska Airlines (ALK) announced on Tuesday the debut of its all-new international business class. The premium long-haul experience is launching this spring as the airline expands to Europe and Asia.

Virgin America had built a strong following since it launched in 2007. The airline earned praise for offering seatback entertainment, in-flight Wi-Fi, power outlets and a modern cabin experience long ...