[QUOTE=piloto2;3097484]You're forgetting that Skywest already operates over half of all the 50 seat regional flying that UAL contracts. They are getting more of those 50 seaters back as the come off of Delta service. They (Skywest) already operate over 180 CRJs for UAL.[/QUOTE

The crj has a shorter lifespan than the 145s and a shortage of parts.