Originally Posted by
trekker954
So I'm booked on QF7 SYD-DFW in April. Leaves 1:10 pm arrives DFW 1:45.
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Currently looks like the schedule for QF7 is departure 3:25 pm, yet arrives 1:45. I also did a check for March and saw it scheduled departure at 2:25 still arriving at 1:45.
Currently, departure is at 1525L (0425Z) and arrival is at 1345L (1945Z), so the scheduled duration is 15:20.
In March, when departure is at 1425L (0325Z), arrival will be at 1345L (1845Z), so the scheduled duration will still be 15:20. This remains in the same IATA scheduling season.
And when you fly in April, when departure is at 1310L (0310Z), arrival will be at 1345L (1845Z) and the scheduled duration will be 15:35. By this time, the new IATA scheduling season will have started and you often see slightly different scheduled durations in different seasons.