Kailua-Kona→SeattleNonstop Flight TimeKOA–BFI

Kailua-Kona (Ellison Onizuka Kona International At Keahole Airport) to Seattle (Boeing Field/King County International Airport).

Direct flights from KOA to BFI have an estimated flight time of about 6h 8m, based on the 2,692-mile great-circle distance. Our current captured departure sample includes weekly across 1 captured airline, with Alaska Airlines appearing most often in that sample.

Methodology: airline, aircraft, terminal, and departure-time details come from the rolling scheduled-departures window for KOA to BFI, last seen June 15, 2026. Frequency uses 1 scheduled departures across 1 observed day; flight time is estimated from great-circle distance until this route has enough tracked flights for an observed average. Provider coverage can miss operators on some routes, so confirm live timetables before booking.