JJ3940 São PauloCGH · 20:55 Rio de JaneiroSDU
JJ3940 by LATAM Brasil flies from São Paulo (CGH) to Rio de Janeiro (SDU) for the Mon, Sep 7 departure.
departs CGH · on schedule
board checked 32m ago · checking again in 45s
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 operation2 cancelled · 12 operations tracked
The route today
live boardsWhen it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other São Paulo to Rio de Janeiro flights today
same route · LATAM BrasilIf JJ3940 is cancelled, these are the other LATAM Brasil nonstop flights from São Paulo to Rio de Janeiro on the same day, with scheduled departure times in CGH local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How JJ3940 actually runs
Pro Flight Search has tracked every published board update for JJ3940 across the CGH and SDU boards: schedule changes, gate pushes and actual clocks. Usually departs on time. Based on 10 confirmed departures · 8/10 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how JJ3940 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as CGH and SDU published them.
Planning around JJ3940? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search — JJ3940 São Paulo to Rio de Janeiro on-time performance, measured from the CGH and SDU airport boards.
https://proflightsearch.com/flight/JJ3940
.