I'm a 1K on UA and flying US. My status just lapsed on US so I'm a nobody to them.

I've got a 5/20 DCA-PHX-SFO and 5/28 SFO-PHX-DCA flights all in coach. The DCA-PHX is in a middle seat.

Any way I can upgrade my seats? Can I use UA miles or UA UG certs. Is there a US equivalent I can trade on CC?

Or am I stuck in coach?