CALGARY — WestJet reported June 2014 traffic results with a load factor of 77.4%, an increase of 0.6 percentage points year over year.

Revenue passenger miles (RPMs), or traffic, increased 5.0% year over year, and capacity, measured in available seat miles (ASMs), was 4.3% higher over the same period.

WestJet achieved an on-time performance rate of 85.6% in June, an improvement of 5.0 percentage points year over year. In the second quarter of 2014, the airline achieved a load factor of 79.6% and flew nearly 4.8 million guests, a year-over-year increase of 6.2% or approximately 280,000 additional guests.

“We are very pleased to report strong year over year traffic growth in June, a month in which we set a new single-day record, flying 63,756 guests on Friday, June 27, and successfully launched our first transatlantic service to Dublin, Ireland,” said WestJet President and CEO Gregg Saretsky.