Lake Central Airlines was an local service carrier, a scheduled airline that served points in the midwestern and eastern United States from 1950 to 1968, when it merged into Allegheny Airlines. In 1979 Allegheny became USAir. In 1997 USAir became US Airways. In 2015 US Airways acquired American Airlines.

Allegheny Airlines was a local service carrier that operated out of Pittsburgh, Pennsylvania, from 1952 to 1979, with routes primarily located in the eastern U.S. It was the forerunner of USAir that was subsequently renamed US Airways, which itself merged with American Airlines. Its headquarters were at Washington National Airport in Arlington County, Virginia.