Alaska AirlinesAS
live
Direct flights from Kailua-Kona (KOA) to Seattle (SEA): 14 nonstop departures observed each week across 2 airlines. The nonstop covers 4,327 km, an estimated 6 hours 3 minutes in the air. Measured by Pro Flight Search from live flight boards at Kailua-Kona and Seattle. Updated 23 September 2026 at 20:33 UTC.
KOA
Kailua-Kona
tracking
SEA
Seattle
smooth · +0
4,327 km · ~6h 03m est.
Running clean · 2 airlines · 14x weekly · nonstop
100 / 100
route health from live KOA and SEA delay boards
Flight time~6h 03mestimated from route distance
Weekly departures14x2 direct airlines on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Alaska AirlinesDelta Air Lines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysDelta Air LinesDL
Flights DL485 20:55 daily
Airports right now
live boardsWeather lens
Current conditions put the pressure at KOA and SEA: 38% odds of a 15+ minute delay and around +8 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Kailua-Kona to Seattle route actually runs
Pro Flight Search records official board updates for nonstop KOA to SEA flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Kailua-Kona (KOA) to Seattle (SEA) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/KOA-SEA
KOA to SEA questions
Is KOA–SEA running on time right now?
Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on KOA–SEA?
Operators schedule evening departures around 20:55 from KOA. Earlier flights typically land before destination-airport delays accumulate later in the day; check the SEA delay card to confirm conditions when you'd arrive.
How long is the flight from KOA to SEA?
Great-circle distance is 4,327 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 335–401 min gate-to-gate on this route.
How often does KOA–SEA fly?
2 carriers operate this route, around 21 flights a week between them. Compare carrier days and times in the airline list above.
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