So I've copied and pasted the questions from the first post and answered them. Essentially, I'm going to be a traveling a decent amount on US Airways and United over the next few months (probably years). I currently fly Delta a ton (segments, not miles) and will have Silver for 2012. Because of my new employer, it seems that Delta is not an option for business. When I book my flights, WHICH *A FF # should i use? I have a United and CO number that I haven't used in ages. I could sign up for US Airways.


(1) DCA/IAD
(2) Fully refundable economy fares - I don't know what letter this is - does CA or YCA mean anything?
(3) 25k-30k miles, but lots of segments though.
(4) Will have Delta Silver.
(5) What is most important to you in a FFP? In descending order: no checked bag fees, upgrades, lounge access, mile reward redemptions.
(6) 90% US Domestic Travel
(7) Favorite airline is Delta (I have DL Amex Gold Card), but now it has to be either US Airways or United
(8) Travel mostly for work - no choice in airline, really. Has to be the contracted airline for that route. For personal travel, I like Delta.