SEA → PEKSeattle to Beijing

live

Direct flights from Seattle (SEA) to Beijing (PEK): 2 nonstop departures observed each week across 1 airline. The median arrival is 19 minutes early. 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 Seattle and Beijing. Updated 14 November 2026 at 22:22 UTC.

Today, SEA → PEK

Sat 14 Nov · local times
  1. 10:20 HU496Hainan Airlines Departed ·

Checked SEA board 14:22 · PEK board 05:17

SEA Seattle heavy · +40
PEK Beijing smooth · +0
8,679 km · ~11h 38m est.
departs 10:202x weekly
Running clean · 1 airline · 2x weekly · nonstop
73 / 100

route health from live SEA and PEK delay boards

Median arrival delay is −19 min. 0 of 2 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−19 minacross the last 2 arrivals
Flight time~11h 38mestimated from route distance
Weekly departures2x1 direct airline on the leg

The week

scheduled departures · origin local time
06121824
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 days
Hainan AirlinesHU

Flights HU496 10:20 Tu Sa

History

operated legs · board outcomes
11-10HU496arrived−19
11-07HU496arrived−39

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
SEASeattle +40 min heavy 🌤 overcast · S 9 kt Full SEA delay board →
PEKBeijing +0 min smooth 🌫 clear · 2 kt Full PEK delay board →

Weather lens

Conditions are tightest at SEA: a 24% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +0 min. Both figures come from the two airports' delay records in similar weather. See live delays → · Weather risk by airport →

How the Seattle to Beijing route actually runs

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

Canonical URL
https://proflightsearch.com/search-flights/SEA-PEK
How we measure this →

SEA to PEK questions

Is SEA–PEK running on time right now?

Mostly on schedule. The departure side at SEA is the weaker end, route health score 73/100. The airports section above carries the live status and delay window at both ends.

How long is the flight from SEA to PEK?

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 SEA–PEK 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 SEA and arrival-side delay at PEK, 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.