On-time performance

The industry-accepted statistic for on-time arrival of flights is called A15, measured as the percentage of flights that arrived within 15 minutes of their scheduled arrival time. While Canadian carriers are not required to report on-time performance measures, WestJet believes it is important to show our guests how we're doing. The duration of a flight is measured from the moment the parking brake is disengaged at the departure gate to the moment it is engaged at the destination gate.

WestJet reports both scheduled and system A15 results. The scheduled metric is based on our standard range of flight numbers flown in the period and is generally used for industry comparison. The system metric makes up all flights flown in the period including scheduled and unscheduled flights (rescue flights, charters, etc.).


WestJet's 2015 A15 performance

 Scheduled flightsSystem flights (actual)
  Number of flights in the period Percentage of
on-time arrivals
Number of flights in the period Percentage of
on-time arrivals
January 2015 16,590 73.0% 16,746 72.8%
February 2015 15,170 75.8% 15,362 75.5%
March 2015 17,058 84.8% 17,210 84.7%
April 2015 16,661 91.2% 16,800 91.0%
May 2015 17,484 93.2% 17,577 93.0%
June 2015 17,447 89.4% 17,593 89.3%
July 2015 18,747 83.8% 18,956 83.4%
2015 to date 119,156 84.6%1 120,245 84.4%2


WestJet's 2014 A15 performance

 Scheduled flightsSystem flights (actual)
  Number of flights in the period Percentage of
on-time arrivals
Number of flights in the period Percentage of
on-time arrivals
January 2014 15,400 58.4% 15,621 58.2%
February 2014 14,330 69.1% 14,471 69.0%
March 2014 15,810 76.1% 15,960 75.9%
April 2014 15,568 82.7% 15,659 82.7%
May 2014 16,109 84.9% 16,216 84.8%
June 2014 15,983 85.7% 16,080 85.6%
July 2014 17,197 81.5% 17,321 81.4%
August 2014 17,311 77.7% 17,464 77.6%
September 2014 15,981 87.0% 16,116 86.9%
October 2014 16,432 87.5% 16,563 87.4%
November 2014 15,593 76.3% 15,717 76.2%
December 2014 16,516 77.7% 16,636 77.6%
2014 to date 175,714 78.9%1 177,188 78.8%2


1Metrics are based on all regularly scheduled flight numbers.

2Metrics are based on all flights including extra sections, charters and other unscheduled flights.