Fly from Glasgow Prestwick into Londonderry with Ryanair from only £18.99 one way. Once you've arrived, there's the famous City Walls to stroll around , perhaps visit the Tower Musuem or the Titanic Experience further afield in Belfast. The offer is displayed on Ireland.com and is valid for travel via Ryanair until 30th April 2014. Ryanair terms and conditions apply, fares are subject to availability. For information and bookings please click on the book now link.