Keely, who followed in her mother's footsteps, fell in love with flying when she was just 14 years old.
She eventually earned her pilot's license and scored an internship with Southwest Airlines in 2017 to further her aviation career.
"Southwest was always the end goal for me. There was really never any other option," she said.
Not only are Holly and Keely making Southwest history, but they are also breaking barriers and empowering women of all ages to pursue their dreams in aviation.
Reflecting on the big day, Holly shared that the morning of July 23 was very emotional.
"One moment you are holding this tiny little premature baby in your arms and in a blink of an eye she is sitting next to you on the flight deck of a Boeing 737 jet!" the proud mom wrote in a Facebook post.
"I love you to the moon and back, Keely Petitt!"
The duo is not sure when they will fly together again, but they are looking forward to it. They are also trying to match their schedules accordingly.
