If I purchase an Economy Plus seat on United, can I get my money back if I change my plans?

Great question! Once purchased, if a change or cancellation is made to the flight with the E+ seats, either by you or by the airline, the E+ cost will be refunded. However, the cost will not be refunded if you subsequently upgrade your flight or decide you want to sit in economy after all. Other airlines offering premium economy seating follow a similar policy.