Alaska Airlines remains focused on improving both passenger comfort and our fuel efficiency. We maintain a young operational fleet of Boeing 737 aircraft, Airbus A320 family aircraft, Bombardier Q400 aircraft, and Embraer 175 aircraft.
If Alaska Airlines had CRJ-900 its livery may look such as this one.

TO INSTALL:
1. Extract " aerosoft-crj-900_ALASKA_N687AK" to your MSFS 2020 Community Folder