It is sponsored by Alaska Airlines sister company, Horizon Air.

Founded in 1977, it was later acquired by Horizon Air in 1983.

Horizon Air operates 48 narrow-body aircraft as of June 2012, with a single economy class service:

Horizon Air, of Seattle, Washington, offers regular daily commercial flights.

Alaska Airlines and Horizon Air are headquartered in the city.

Horizon Air of Seattle is using the new aircraft to substitute for 19-seat planes now in use.

It was acquired later that year by Horizon Air, which began service in the early 1980s.

Horizon Air also previously served the airport with turboprop service to Portland and Seattle.

It was later consolidated in 1981 with Horizon Air.

Gate 1 on the east side of the terminal is used by Horizon Air.