Originally Posted by ANC RED-EYE

Assuming you plan to keep either US as your primary or switch to UA as primary, you could also consider adding AS as your secondary. AS has a relatively small number of flights to DCA...but partnerships (with Elite qualification) with AA and DL make it a nice supplementary program. One way redemptions on AS flights only, but redemptions possible on AA and DL...again, making your secondary miles potentially more flexible for redemption.