Hawaiian Airlines has accelerated its plans to increase seat capacity in service between Honolulu and Portland, Ore., by three weeks due to the earlier-than-expected delivery of the second of five Airbus A330-200 aircraft joining the fleet this year.

The transition from Hawaiian’s 264-seat Boeing 767-300 aircraft to its 294-seat A330 will start April 20 and add nearly 11,000 new air seats to the route annually. It also will increase Hawaiian’s cargo capacity on the route by 25 percent.