U.S. Attorney Andrew Lelling in a statement says 31-year-old Tiffany Jenkins pleaded guilty Friday to wire fraud.
Officials say from July 2016 to September 2017 Jenkins used her access to the airline's reservation database to exchange the flights at no additional cost for family, friends and acquaintances.
Authorities say the Chelsea woman applied a code often used for passengers who've missed flights or experienced a death in the family, executing approximately 505 ticket exchanges for more than 100 different passengers.
She faces up to 20 years in prison at sentencing scheduled for Jan. 21.
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