Originally Posted by
flyerCO
Normally it shows 4 columns if there is both FC and D1 options. One for FC, and one for D1. In this case only D1 is being offered.
Look at the fare code and flight listing on the non-stops. They are clearly F, not D1 routes based on fare codes. The headings don't mean anything. They only list both on actual D1 routes (JFK-LAX/SFO, DCA-LAX, BOS-SFO). It's typical DL IT nonsensical behavior. Fare code is the ultimate decider here. Show me an example where the second to last letter is a 'D'.
https://pro.delta.com/content/agency...structure.html