How to Delete Delta Airlines (SkyMiles) Account – Deactivate (SkyMiles) Account. How to Delete Delta Airlines(SkyMiles) Account. Delta Airlines (SkyMiles) is the frequent-flyer program of Delta Air Lines that offers points to passengers traveling on most fare types, as well as to consumers who utilize Delta co-branded credit cards, which accumulate towards free awards such… Continue reading How to Delete Delta Airlines (SkyMiles) Account – Deactivate (SkyMiles) Account