Answer:

usair

AnswerCrossword Clue
USAIRUnited competitor
USAIRJetliner name until 1997
USAIRCarrier renamed in 1997
USAIROld name on a jet
USAIR1970s-90s carrier name
USAIRPan Am competitor
USAIROld plane handle
USAIRAllegheny, as of 1979
USAIR1987 Pacific Southwest acquirer
USAIRCarrier that merged with Piedmont in 1989
USAIRCarrier that added "ways" to its name in 1997
USAIRIt merged with Piedmont in 1989
USAIRPan Am rival
USAIRTWA competitor
USAIRAmerican competitor, as it was once known
USAIRDelta rival, as it used to be called
USAIRUnited alternative, formerly
USAIRName on jetliners, once
USAIRCarrier whose name changed in 1997
USAIRWords on an old plane
USAIRCommercial carrier until 1997
USAIRAllegheny after 1979, until 1997
USAIRFormer Delta rival
USAIRName that came off planes in 1997
USAIRCommercial carrier name until 1997
USAIRName on an old plane
USAIRDelta competitor, formerly
USAIRAllegheny's successor in the skies
USAIROne-time rival of Pan Am
USAIRAviation name until 1997
USAIRPan Am rival, once
USAIRFormer name in flight
USAIRCarrier that lengthened its name in 1996
USAIRCarrier until '97
USAIRDelta rival, as it was formerly known
USAIRCarrier's former name
USAIREarly Boeing 737 customer
USAIROnetime rival of Pan Am
USAIRPiedmont acquirer
USAIRRenamed carrier