Monarch is a low cost carrier based at Luton Airport near London, United Kingdom. It operates a combination of short-haul narrowbody aircraft and long-haul wide-body aircraft, including variants of the A320 and A330, with an average fleet age of roughly 11 years. They are in the process of retiring the A330. Monarch's frequent flier program is the Vantage Club, and it is not a member of any current alliance.