Alaska Air Group on Thursday posted a second-quarter net income of $165 million, up nearly 60 percent compared with the second quarter of 2013.

A research note from Cowen and Company said the carrier's results were solid "despite a significant competitive incursion from Delta in Seattle." Alaska's total passenger revenue increased 8 percent to $1.2 billion, with revenue per available seat mile up 4 percent and yield up 2.8 percent. Traffic increased 5 percent and capacity 5.2 percent, leaving Alaska's load factor for the quarter about flat at 86.3 percent. Cost per available seat mile, excluding fuel, was up 0.6 percent.