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Old Mar 13, 2012 | 1:17 am
  #14  
SQ421
 
Join Date: Nov 2006
Location: cbr
Programs: QF WP (OWE) / LTG (LT OWS) | Hyatt Globalist
Posts: 4,971
Originally Posted by PVDtoDEL
I agree that it is a relic of a socialist era. I disagree that the reliability cannot be extrapolated from a HYD-DEL flight - I've flown AI 126 (ORD-DEL-HYD) on the DEL-HYD sector about once a month for the last few months. In 6 times, it has been delayed or cancelled 0 times. If the reliability in ORD was poor, it would be pretty obvious in DEL...
You are extrapolating the reliability of the entire network based on one domestic segment of an international flight. High school level statistics and probability should teach you how incorrect and off the mark that extrapolation is, based on your sample size.

BTW, AI127 is delayed an average 101 minutes between 1 Jan and 29 Feb this year - http://www.flightstats.com/go/Flight...19F2.web1:8009

Here are the comparable stats for BOM-EWR in the same period.
http://www.flightstats.com/go/Flight...19F2.web1:8009
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