You can change your return flight route online to a different airport within the same countries as your original booking, such as switching the arrival or departure airport.
Yes, you can change the route of your return flight online. You have the option to fly to or from a different airport from your original booking, providing the departure and/or arrival airports are located in the same countries. See an example below:
• Original Flights – Dublin -> Stansted / Stansted -> Dublin
• Change to – Dublin -> Stansted / Manchester -> Dublin