FlyerTalk Forums - View Single Post - Domestic US GoUpgrades and other upgrades [Master Thread]
Old Feb 27, 2015 | 2:55 pm
  #206  
heyeaglefn
All eyes on you!
10 Years on Site
 
Join Date: May 2011
Programs: US Airways Gold, Marriott Platinum, SW A List
Posts: 1,575
The way you can do it for free is do a search by booking with miles for whatever leg you want upgraded, and if there is Low first class inventory that shows up then you can upgrade with miles.
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