The airline's main base and headquarters is at Luton Airport with other operational bases at Manchester, Gatwick and Birmingham. Manchester is Monarch's primary scheduled operation base and largest base, whilst Gatwick is Monarch's primary charter operation base. It also has a charter base at Dublin. It is the oldest UK airline that has not changed its original name. It has around 2,070 employees.
Monarch is one of the largest UK airlines, having carried around 5.8 million passengers during 2010.
In June 2010 Monarch Airlines was ranked 58th in the Sunday Times Top Track 100 listing British private companies with the biggest sales. The company holds a United Kingdom Civil Aviation Authority Type A Operating Licence, permitting it to carry passengers, cargo and mail on aircraft with 20 or more seats.
Monarch Airlines is a wholly owned subsidiary of Monarch Holdings, which in turn is 100%-owned by the Globus Travel Group. As of mid-2010, Globus Travel's shareholders include,
* Amerald Investments (88%)
* Atlantic Financial Services (7%)
* Abaco Holdings (4%)