By David Shepardson

WASHINGTON (Reuters) -Flight operations at two Dallas-area airports returned to normal operations on Saturday as the Federal Aviation Administration detailed telecom failures by a unit of Verizon Communications that it said led to more than 2,000 flight disruptions.

American Airlines, the largest carrier at Dallas Fort Worth Airport, said more than 100,000 passengers were impacted following telecom issues that began on Friday around 2 p.m. CT and were not resolved until Saturday morning.

American said it was forced to cancel 530 flights Friday, 160 flights Saturday, and had to divert another 65 flights that had been bound for Dallas.

Southwest Airlines, the largest carrier at Dallas Love Field, delayed more than 1,100 flights Friday, or a quarter of its operations,

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