FlyerTalk Forums - View Single Post - Air Canada ranks dead last among large NA carriers for On-Time Performance, Again
Old Feb 21, 2018 | 9:42 pm
  #30  
tracon
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Originally Posted by D582
Looking at the past 10 days.

AC119 is -12, -4, -27, -20, -114, -18, +1, -17, -9, -36. Average Schedule Adherence -25.6 minutes. Removing the highest and lowest as outliers (-114, +1) and we get an average of -17.88 min.

WS717 is +12, -5, -43, -59, -20, -14, -2, +7, 0, -88 Average Schedule Adherence -21.2 minutes. Removing the highest and lowest as outliers (-88, +12) and we get an average of -17 min.
The last few weeks, the jet stream has been stronger than average. I'm guessing on many of those days, 50kts stronger than average.
To make a fair comparison, how was eastbound OTP?

A YYZ-YVR I did at the beginning of the month, we were 4:45 in the air.
About 25 minutes longer than the average I've experienced for that type of a/c.(B777)
Eastbound a couple days earlier, same equipment, airborne time 3:40.

AC may have one of the worst OTP rates, but how does their completion rate compare?
The Americans have the tarmac rule to contend with. This results in a higher cancellation rate.
Especially for flights that will experience severe delays.
It's all fine to say that American hubs have a better OTP,
but hundreds of regional flights are cancelled to make the mother ship look good.
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