SEA → HAKSeattle to Haikou

live

Direct flights from Seattle (SEA) to Haikou (HAK) run nonstop between the two airports. The nonstop covers 10,860 km, an estimated 14 hours 25 minutes in the air.

SEA Seattle smooth · +14

HAK Haikou tracking

10,860 km · ~14h 25m est.

Running clean · 0 airlines · nonstop

82 / 100

route health from live SEA and HAK delay boards

Flight time~14h 25mestimated from route distance

Airports right now

live boards

SEASeattle +14 min smooth 🌤 clear · NE 6 kt Full SEA delay board →

HAKHaikou tracking Full HAK delay board →

How the Seattle to Haikou route actually runs

Pro Flight Search records official board updates for nonstop SEA to HAK 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 Haikou (HAK) route reliability, measured from operated flights on official airport boards.

Canonical URL

https://proflightsearch.com/search-flights/SEA-HAK

How we measure this →

SEA to HAK questions

Is SEA–HAK running on time right now?

Smooth skies ahead. The departure side at SEA is the weaker end, route health score 82/100. The airports section above carries the live status and delay window at both ends.

How long is the flight from SEA to HAK?

Great-circle distance is 10,860 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 797–961 min gate-to-gate on this route.

What does the route health score measure?

A blend of departure-side delay at SEA and arrival-side delay at HAK, 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.