Originally Posted by
xliioper
The old marketing page for the Delta Shuttle was pulled down some time in late 2021. This is one of the last snapshots before it was pulled. The page now does a redirect to check-in times page for the Shuttle, but it's not really clear it's still a thing. The mainline flights on these routes say nothing about being part of "DL Shuttle".
https://web.archive.org/web/20211016...a-shuttle.html

There's a whole section under Check In Time requirements.
While the got rid of Shuttle on West Coast, East coast i believe still exists. Wiki (i know but it's a siurce) still shows Shuttle being a thing.
It's also listed as a product on pro.delta.com