Originally Posted by
cfischer
they should ... YVR/SEA are close enough that during irops they can book to either one. That said, now you are trying to do a complicated thing ... ask for a refund on the outbound and a re-routing on the return to SEA? They 'might' do that, but you will probably need a willing agent.
If not I'll cancel the whole ticket and rebook ORD-SEA on UA because I see plenty of good options on my return date.