MU521 ShanghaiPVG · 11:45 TokyoNRT · 15:55
MU521 by China Eastern Airlines flies from Shanghai (PVG) to Tokyo (NRT) for the Wed, Sep 9 departure.
arrived at NRT · 7 min early
Where the minutes go
last 7 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The last 30 days
arrival outcome per operationmedian arrival −7 min · 0 cancelled · 7 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at PVG and NRT are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Shanghai to Tokyo flights today
same route · China Eastern AirlinesIf MU521 is cancelled, these are the other China Eastern Airlines nonstop flights from Shanghai to Tokyo on the same day, with scheduled departure times in PVG local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How MU521 actually runs
Pro Flight Search has tracked every published board update for MU521 across the PVG and NRT boards: schedule changes, gate pushes and actual clocks. Usually lands ~7 min early. Based on 7 confirmed landings · 7/7 within 15 min of schedule. Pushes back late but makes up time in the air.
The verdict above is that record speaking, so it reflects how MU521 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: B-300P, B-1073, B-8968, B-1049.
Board clocks recorded as PVG and NRT published them.
Planning around MU521? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — MU521 Shanghai to Tokyo on-time performance, measured from the PVG and NRT airport boards.
https://proflightsearch.com/flight/MU521
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