Originally Posted by darrenpb

I just added my new number last night to three existing flight reservations I have booked for the next two weeks by calling WN CS. I had to change my middle initial on the reservation to my full middle name so it would match the Pre check record. Otherwise it won't work. The CS rep did it to each flight while I stayed on the phone with her. I will know tomorrow if it works when I print my boarding pass for the first flight on Saturday.