Hawaiian Airlines, Hawaiʻi’s hometown airline, is preparing for strong summer travel demand to and from Hawaiʻi by increasing flights between Honolulu (HNL) and Austin (AUS), Boston (BOS), Las Vegas (LAS) and Pago Pago (PPG). The airline will also add a fourth daily flight between HNL and Los Angeles (LAX) from May 24 through Sept. 2.