Here we have a United Express CRJ-700 coming in to land. The livery is of the more recent United Airlines livery before the merger with Continental Airlines.

The aircraft itself is a regional airliner. A regional airliner or a feederliner is a small airliner designed to fly up to 100 passengers on short-haul flights, usually feeding larger carriers' hubs from small markets. This class of airliners are typically flown by the regional airlines that are either contracted by or subsidiaries of the larger airlines. Feederliner, commuter, and local service are all alternate terms for the same class of flight operations.