Alaska Airlines intends to add three more Boeing 737-900ERs to its order book, bringing its total outstanding orders for the type to 22.
The airline exercised one option in the first quarter and plans to exercise two additional options this quarter with Boeing for the aircraft, according to a regulatory filing.
Boeing will deliver the 737-900ERs in the third quarter of 2013.
Alaska also plans to close a short-term sale and leaseback agreement for three B737-700 aircraft with Boeing this quarter. The aircraft will be returned to the lessor in the third quarter of 2013.
The carrier expects that it will have 117 aircraft in its fleet at the end of 2013, which remains unchanged due to the return of the smaller B737-700s to Boeing.
The carrier's total outstanding orders will increase by one to 28 compared to the end of the fourth quarter 2011. This includes the 22 B737-900ERs, four B737-800s and two Bombardier Q400 turboprops for Alaska's subsidiary Horizon Air.