FM840 BangkokBKK · 21:55 ShanghaiPVG · 03:20
FM840 by Shanghai Airlines flies from Bangkok (BKK) to Shanghai (PVG) for the Wed, Sep 9 departure.
estimated arrival at PVG · local time · ~41 min from now
board checked 94m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 22:33. No receiver coverage over open ocean.
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 +10 min · 4 cancelled · 16 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at BKK and PVG 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 Bangkok to Shanghai flights today
same route · Shanghai AirlinesIf FM840 is cancelled, these are the other Shanghai Airlines nonstop flights from Bangkok to Shanghai on the same day, with scheduled departure times in BKK local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How FM840 actually runs
Pro Flight Search has tracked every published board update for FM840 across the BKK and PVG boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 9 confirmed landings · 7/9 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how FM840 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-224E, B-1452, B-205Z, B-207G.
Board clocks recorded as BKK and PVG published them.
Planning around FM840? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — FM840 Bangkok to Shanghai on-time performance, measured from the BKK and PVG airport boards.
https://proflightsearch.com/flight/FM840
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