Hainan AirlinesHU
Flights HU495 13:10 Tu Sa
live
Direct flights from Beijing (PEK) to Seattle (SEA): 2 nonstop departures observed each week across 1 airline. The median arrival is 13 minutes late. No cancellations were recorded across the 2 tracked flights. The nonstop covers 8,679 km, an estimated 11 hours 38 minutes in the air. Measured by Pro Flight Search from live flight boards at Beijing and Seattle. Updated 12 September 2026 at 23:23 UTC.
PEK
Beijing
smooth · +10
SEA
Seattle
busy · +21
8,679 km · ~11h 38m est.
Running clean · 1 airline · 2x weekly · nonstop
79 / 100
route health from live PEK and SEA delay boards
Median arrival delay is +13 min. 0 of 2 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+13 minacross the last 2 operated legs
Flight time~11h 38mestimated from route distance
Weekly departures2x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Hainan Airlines
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 daysHistory
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 PEK and SEA: 35% odds of a 15+ minute delay and around +3 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 Beijing to Seattle route actually runs
Pro Flight Search records official board updates for nonstop PEK 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 — Beijing (PEK) to Seattle (SEA) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/PEK-SEA
PEK to SEA questions
Is PEK–SEA running on time right now?
Mostly on schedule. The arrival side at SEA is the weaker end, route health score 79/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from PEK to SEA?
Great-circle distance is 8,679 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 643–774 min gate-to-gate on this route.
How often does PEK–SEA fly?
Hainan Airlines runs the route with about 2 flights a week (tue, sat). 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 PEK and arrival-side delay at SEA, 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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