Alaska Air Group Inc is a holding company that was incorporated in Delaware in 1985. The Company provides passenger air service to more than 27 million passengers per year to more than 100 destinations. Alaska Air also provides freight and mail services. Its subsidiary, Horizon Air Industries is a Washington corporation that first began service, was incorporated in 1981 and was acquired by Air Group in 1986. Alaska and Horizon have marketing alliances with other airlines that provide reciprocal frequent flyer mileage credit and redemption privileges and code sharing on certain flights. Airline tickets are distributed through three main channels: Airline websites such as alaskaair.com. The Company is subject to various laws and government regulations concerning environmental matters and employee safety and health in the U.S. and other countries.