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 2016 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 2016 18,713 81.1% 18,978 80.8%
February 2016 17,334 83.3% 17,576 83.2%
March 2016 18,878 84.6% 19,196 84.4%
April 2016 18,356 88.5% 18,644 88.4%
May 2016 18,436 89.6% 18,744 89.2%
2016 to date 91,717 85.4%1 93,138 85.2%2

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%
August 2015 19,059 84.0% 19,241 83.8%
September 2015 17,653 90.7% 17,087 90.5%
October 2015 17,729 90.7% 17,896 90.6%
November 2015 16,843 89.8% 17,060 89.7%
December 2015 18,379 76.2% 18,625 75.9%
2015 to date 208,819 85.3%1 210,874 85.1%2

1Metrics are based on all regularly scheduled flight numbers.

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