Flying PHL-MCO-PHL and got notification of a schedule change. The MCO-PHL flight now arrives 30 minutes later which really is no good for me. I already found a one-way, very cheap ticket on United (my preferred airline) at a better time and would be ready to purchase it. If I call up US Air I should be able to get a refund on the return leg without affecting the outbound, yes? (Especially considering the outbound has no changes, theres no reason why they should even allow me to change that for free).