CALGARY — WestJet posted first quarter results for 2015 with record net earnings of $140.7 million.

This compares with net earnings of $89.3 million, up 57.6%. WestJet achieved an on-time performance rate of 78.0% in the first quarter, a year-over-year improvement of 10.1 percentage points.

“We started 2015 with a record quarter as we achieved our best ever quarterly net earnings and earnings per share, exceeded our 12% ROIC target for the 11th consecutive quarter by achieving an all-time high of 15.8%, and saw our operating margin expand by 5.6 percentage points to 18.2%,” said WestJet President and CEO Gregg Saretsky.