Then came the terrorist attacks on September 11, 2001, which forced the closure of Ronald Reagan Washington National Airport, a US Airways hub. The airline filed for bankruptcy in 2002.
In 2003, US Airways emerged from bankruptcy and attempted to position itself as a low-cost carrier to vie with rival Southwest Airlines. The competition -- coupled with rising fuel prices and labor costs -- proved too great, however, and US Airways filed again in 2004.
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