Not sure where else to post this.

I'm about 6'7 and flying coach from ICN to DTW and connecting from there. I know coach is not comfortable, nor is it meant to be, but it's quite painful for that long. The last flight I had that long, I stood for probably half the flight (made friends with the FAs!). Anyways, I know a physical therapist here in Korea who would be willing to write a note advocating for some sort of help. Will Delta be receptive to this?