Delta Air LinesDL80% on time
Flights DL281 15:40 Mo Tu We Th Sa Su
live
Direct flights from Seattle (SEA) to Shanghai (PVG): 6 nonstop departures observed each week across 1 airline. 80% of the last 5 operated flights arrived within 15 minutes of schedule. The median arrival is 38 minutes early. No cancellations were recorded across the 5 tracked flights. The nonstop covers 9,188 km, an estimated 12 hours 17 minutes in the air. Measured by Pro Flight Search from live flight boards at Seattle and Shanghai. Updated 16 October 2026 at 05:36 UTC.
Today, SEA → PVG
Thu 15 Oct · local times- 15:40 DL281美国达美航空公司 Departed PVG est. 18:59In the air · sched 19:50
Checked SEA board 22:22 · PVG board 13:36
SEA
Seattle
heavy · +53
PVG
Shanghai
smooth · +0
9,188 km · ~12h 17m est.
Runs reliable · 1 airline · 6x weekly · nonstop
80% on time
of the last 5 operated SEA → PVG flights arrived within 15 minutes
Median arrival delay is −38 min. 0 of 5 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−38 minacross the last 5 operated legs
Flight time~12h 17mestimated from route distance
Weekly departures6x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Delta 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 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 SEA: 34% 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 Seattle to Shanghai route actually runs
Pro Flight Search records official board updates for nonstop SEA to PVG 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 Shanghai (PVG) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/SEA-PVG
SEA to PVG questions
Is SEA–PVG running on time right now?
Some delays possible. The departure side at SEA is the weaker end, route health score 65/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from SEA to PVG?
Great-circle distance is 9,188 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 679–818 min gate-to-gate on this route.
How often does SEA–PVG fly?
Delta Air Lines runs the route with about 6 flights a week (sun, mon, tue, wed, thu, 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 PVG, 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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