This forced a change to "Shasta", which was frequently confused with "Cessna", so "Sundance" became the call sign until WestAir went out of business.

WestAir had hoped to acquire several regional jets, but none was chosen until 1987 when it placed an order for several BAe 146-200s to be delivered starting in 1988.

Shortly afterwards, WestAir's handful of BAe 146s were disposed of in an attempt to dig the airline out of an economic hole.

At the time of its demise, WestAir flew Brasilias and Jetstream J31s mainly from Los Angeles (LAX) and San Francisco (SFO) and from Seattle and Portland.

WestAir operated the following aircraft types at various times during its existence:[11][12] WestAir predecessor Stol Air Commuter operated Britten-Norman BN-2 Islander and Britten-Norman BN-2A Trislander prop aircraft, both of which have STOL (short take-off and landing) capabilities.