This is a list of airline holding companies, that either own more than one airline or are the parent company of a single airline.
A company or firm in which the holding company owns a significant portion of voting shares, usually 20–50% or a "minority of share ownership", is known as an associate company. A company in which the holding company owns more than 50% voting shares or a "majority of share ownership" is known as a subsidiary. The holding company thus can also be referred to as the parent company at that stage.
To create the world's largest carrier, American Airlines and US Airways merged on 9 December 2013, with the frequent flier programs combined on 7 January 2014, and the airline codeshare beginning February 2014 using the American flight number.
• Virgin Atlantic (51%)