Alaska AirlinesAS65% on time
Flights AS204 11:27 daily · AS238 15:59 Mo Tu We Th Fr Su · AS200 18:59 daily
live
Direct flights from Seattle (SEA) to Kailua-Kona (KOA): 14 nonstop departures observed each week across 2 airlines. 73% of the last 26 operated flights arrived within 15 minutes of schedule. The median arrival is 9 minutes early. 3 of the 26 tracked flights were cancelled. 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 Seattle and Kailua-Kona. Updated 18 August 2026 at 04:38 UTC.
SEA
Seattle
smooth · +6
KOA
Kailua-Kona
tracking
4,327 km · ~6h 03m est.
Runs mixed · 2 airlines · 14x weekly · nonstop
73% on time
of the last 26 operated SEA → KOA flights arrived within 15 minutes
Median arrival delay is −9 min. 3 of 26 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Search live fares for this route →Median arrival−9 minacross the last 26 operated legs
Flight time~6h 03mestimated from route distance
Weekly departures14x2 direct airlines on the leg
Cancelled11.5%recent route rate · 3 of 26
Current nonstop fares
SEA → KOA · one way · economy · 1 adult
TodayChecking…Direct airline fares
TomorrowChecking…Direct airline fares
In one weekChecking…Direct airline fares
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 LinesDL100% on time
Flights DL340 14:30 daily
History
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Current conditions put the pressure at KOA: 40% odds of a 15+ minute delay and around +10 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 Seattle to Kailua-Kona route actually runs
Pro Flight Search tracks every published board update for nonstop SEA to KOA flights: 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. Fares link straight to the operating airline with no markups.
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 — Seattle (SEA) to Kailua-Kona (KOA) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/SEA-KOA
SEA to KOA questions
Is SEA–KOA running on time right now?
Smooth skies ahead. The departure side at SEA is the weaker end, route health score 90/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on SEA–KOA?
Operators schedule morning departures around 11:27 and evening departures around 18:59 from SEA. Earlier flights typically land before destination-airport delays accumulate later in the day; check the KOA delay card to confirm conditions when you'd arrive.
How long is the flight from SEA to KOA?
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 SEA–KOA fly?
2 carriers operate this route, around 27 flights a week between them. Compare carrier days and times in the airline list above.
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