The airline hasn’t yet announced when it will bring back soft drinks, juice and other beverages on flights.
Passengers in coach class on domestic flights will still get just bottled water and snack bags.
The airline has continued to serve beer, wine and cocktails on long international routes.
On Wednesday, Delta said it is reopening more of its Sky Clubs, including clubs in Chicago, Denver, Miami, Nashville, Orlando, Phoenix and San Francisco.
Delta has kept Sky Clubs open at the Atlanta airport on Concourses A, D and F.
The membership-based Sky Clubs have converted to grab-and-go buffets and are limiting capacity and blocking seats. Those visiting clubs are required to wear masks.
Delta also added plexiglass partitions at Sky Club check-in, at the bar and between tables.