CALGARY — WestJet recorded a December 2014 load factor of 80.9%, down 0.8 percentage points from the previous December on a 5.1% increase in traffic.

Capacity, measured in available seat miles (ASMs), grew 6.1% over the same period. In the month of December, WestJet achieved an on-time performance rate of 77.5%, an improvement of 29.1 percentage points. The airline flew a record 19.7 million guests in the full-year 2014, a year-over-year increase of 6.3% or approximately 1.2 million additional guests.

“We are very pleased with the strong traffic growth we saw throughout 2014, welcoming a record 4.8 million guests on board in the fourth quarter to finish the year with our third highest fourth quarter and full-year load factors,” said WestJet President and CEO Gregg Saretsky.