This is a nice way to take a “one day” run and even bookable on a weekend. You can book them as one-way tickets, should you wish, and it works to or from either airport. Since booking in 1st you get meals both ways too! Not a bad way to pick up a nice chunk of MQMs.
With a HT to FT for the find here are the numbers:
4,344 MQMs at 8.4CPM
Bookable on Delta.com
This also would be a great choice for your US BANK FlexPerks award as you are staying under $400 round trip!