Join Date: Dec 2011
Location: BOS, BWI, DCA, IAD
Programs: American, Delta, JetBlue, United
Posts: 2,401
Your choice longer term is really between UA and AA, not UA and US. I would think AA would be preferable for someone living in Philadelphia, but it wouldn't hurt to keep a UA program active as well. Remember that both UA and AA offer OW redemptions at half the miles, so you can draw on both programs to arrange a RT.