TWA757 From United States of America, joined Jul 2007, 176 posts, RR: 0 Posted (4 years 7 months 6 days 18 hours ago) and read 4148 times:
Tomorrow I'm flying DCA-PHX-PDX on US. I used miles to upgrade to F, but was only able to get a seat in F for the second leg (PHX-PDX). Can I check in for my first flight at DCA in the F line? Also, I doubt there will be F seats available on DCA-PHX, but if anyone has any insight into those loads, that'd be helpful as well.