Alaska AirlinesAS
live
Direct flights from Seattle (SEA) to Lihue (LIH): 14 nonstop departures observed each week across 2 airlines. The nonstop covers 4,345 km, an estimated 6 hours 4 minutes in the air. Measured by Pro Flight Search from live flight boards at Seattle and Lihue. Updated 16 September 2026 at 04:23 UTC.
SEA
Seattle
smooth · +7
LIH
Lihue
tracking
4,345 km · ~6h 04m est.
Running clean · 2 airlines · 14x weekly · nonstop
88 / 100
route health from live SEA and LIH delay boards
Flight time~6h 04mestimated 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 DL345 16:05 daily
Airports right now
live boardsnext sweep in 120s
How the Seattle to Lihue route actually runs
Pro Flight Search records official board updates for nonstop SEA to LIH 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 — Seattle (SEA) to Lihue (LIH) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/SEA-LIH
SEA to LIH questions
Is SEA–LIH running on time right now?
Smooth skies ahead. The departure side at SEA is the weaker end, route health score 88/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from SEA to LIH?
Great-circle distance is 4,345 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 337–402 min gate-to-gate on this route.
How often does SEA–LIH fly?
2 carriers operate this route, around 21 flights a week between them. Compare carrier days and times in the airline list above.
What does the route health score measure?
A blend of departure-side delay at SEA and arrival-side delay at LIH, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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