The Southwest Airlines Boeing 737 MAX 8 is fully capable of long overwater flying in the right configuration, but that does not mean, on the fundamentals alone, that every MAX 8 in the fleet can simply be scheduled across the Pacific at will. The key issue is Extended-Range Twin-Engine Operational Performance Standards (ETOPS), the regulatory framework that governs twin-engine operations beyond a set diversion time from a suitable airport. In practice, ETOPS is not just a model-wide label attached to the 737 MAX 8. It depends heavily on a combination of aircraft-specific approval, maintenance standards, dispatch procedures, crew training, route planning, and the airline’s broader operating program. This is a fundamental reason why Southwest’s Hawaii operation has always been more specialized than a casual observer might actually assume.