Originally Posted by
flying chef
Thanks to all for the advice. In the end, I was booked on UA, which is fine because I'm an Aeroplan member. Even with full economy (military) couldn't get Economy Plus seat on an A320. Not looking forward to IAD-SAN tomorrow. Maybe I'll get bumped and upgraded

Or perhaps you'll be able to "buy up" to E+ for a nominal fee at check-in.