Fast-fine Greek cuisine from San Francisco-based Souvla and American classics from New York’s Union Square Events will be the latest to join Delta’s onboard offerings.

As the weather grows colder, Delta’s onboard menu is heating up with fresh, seasonal selections and an expansion of the airline’s popular pre-select meal program. Following rave reviews in initial markets, starting Dec. 6, Delta will expand its popular pre-select meal program to include all outbound and inbound Delta One ...