MU5121 ShanghaiSHA · 18:00 BeijingPEK · 20:15
MU5121 by China Eastern Airlines flies from Shanghai (SHA) to Beijing (PEK).
scheduled from SHA
⚖ MU5121 typically leaves +19 and lands −12. The air wins minutes back.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 −12 min · 0 cancelled · 14 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at SHA and PEK 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. This route's tracked sample is still thin — treat these as an early read, not a precise forecast.
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 Beijing flights today
same route · China Eastern AirlinesIf MU5121 is cancelled, these are the other China Eastern Airlines nonstop flights from Shanghai to Beijing on the same day, with scheduled departure times in SHA local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How MU5121 actually runs
Pro Flight Search has tracked every published board update for MU5121 across the SHA and PEK boards: schedule changes, gate pushes and actual clocks. Usually lands ~12 min early. Based on 14 confirmed landings · 14/14 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 MU5121 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-7881.
Board clocks recorded as SHA and PEK published them.
Planning around MU5121? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — MU5121 Shanghai to Beijing on-time performance, measured from the SHA and PEK airport boards.
https://proflightsearch.com/flight/MU5121
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