CALGARY — WestJet posted June 2015 traffic results with a load factor of 76.9%, a decrease of 0.5 percentage points year over year.

Revenue passenger miles (RPMs), or traffic, increased 7.0% year over year with a more aggressive mix of lower fares, and capacity, measured in available seat miles (ASMs), was 7.6% higher over the same period. WestJet achieved an on-time performance rate of 89.4% in June, an improvement of 3.7 percentage points year over year.

In the second quarter of 2015, the airline achieved a load factor of 78.1%, a decrease of 1.5 percentage points year over year, and flew a record 5.0 million guests, a year-over-year increase of 3.9% or approximately 184,000 additional guests.

“We are pleased with our traffic growth in the second quarter and are committed to keeping our costs low in order to provide affordable air travel for our guests,” said WestJet President and CEO Gregg Saretsky.