Sun PhuQuoc Airways9G
Flights 9G9970 13:49 Fr
live
Direct flights from Seattle (SEA) to Hanoi (HAN): 1 nonstop departure observed each week across 1 airline. The nonstop covers 10,994 km, an estimated 14 hours 36 minutes in the air. Measured by Pro Flight Search from live flight boards at Seattle and Hanoi. Updated 30 October 2026 at 08:18 UTC.
SEA
Seattle
smooth · +0
HAN
Hanoi
smooth · +0
10,994 km · ~14h 36m est.
Running clean · 1 airline · 1x weekly · nonstop
100 / 100
route health from live SEA and HAN delay boards
Flight time~14h 36mestimated from route distance
Weekly departures1x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Sun PhuQuoc Airways
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 daysAirports right now
live boardsWeather lens
Conditions are tightest at SEA and HAN: a 32% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +1 min. Both figures come from the two airports' delay records in similar weather. See live delays → · Weather risk by airport →
next sweep in 120s
How the Seattle to Hanoi route actually runs
Pro Flight Search records official board updates for nonstop SEA to HAN 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 Hanoi (HAN) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/SEA-HAN
SEA to HAN questions
Is SEA–HAN 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.
How long is the flight from SEA to HAN?
Great-circle distance is 10,994 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 806–972 min gate-to-gate on this route.
How often does SEA–HAN fly?
Sun PhuQuoc Airways runs the route with about 1 flight a week (fri). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at SEA and arrival-side delay at HAN, 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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