Alaska Airlines currently operates a fleet primarily composed of Boeing 737 aircraft and Embraer E175 regional jets. Specifically, their mainline fleet includes various Boeing 737 models such as:

• Boeing 737-700
• Boeing 737-800
• Boeing 737-900 (to be retired by the end of 2025)
• Boeing 737-900ER
• Boeing 737 MAX 8
• Boeing 737 MAX 9
• Boeing 737 MAX 10 (deliveries expected to begin in 2026)

For regional flights, Alaska Airlines uses Embraer E175 jets operated by Horizon Air and SkyWest Airlines. In addition, the cargo fleet consists of Boeing 737-700F and Boeing 737-800BCF freighter aircraft. Alaska Airlines has phased out all Airbus aircraft inherited from Virgin America and now maintains an all-Boeing mainline fleet with Embraer jets for regional service