This term refers to air travel between Seattle-Tacoma International Airport (SEA) and Ontario International Airport (ONT) in Southern California. It represents a specific route connecting the Pacific Northwest with the Inland Empire region, bypassing the often congested Los Angeles International Airport (LAX). This connection facilitates both business and leisure travel between these two distinct areas.
The availability of this air route offers significant advantages. It provides a more convenient and potentially less expensive gateway to Southern California for travelers from the Seattle area, while also offering easier access to the Pacific Northwest for those in the Inland Empire. This connection fosters economic and cultural exchange between the two regions, supporting tourism and business development. Historically, the growth of this air route likely reflects the increasing economic importance of both regions and the demand for efficient travel options.