The parent of Hawaiian Airlines said Tuesday that net income jumped 78.7 percent in the second quarter amid a steep drop in fuel costs. 

Hawaiian Holdings Inc. posted earnings of $48.8 million, or 79 cents a share, compared with $27.3 million, or 43 cents a share, in the year-earlier quarter. Fuel costs plunged 35.4 percent to $112.5 million from $174.1 million. 

Despite the jump in earnings, the state’s largest carrier said revenue slipped 0.8 percent to $571.3 million from $575.7 million.