Riordan, 43, was returning to his home in Albuquerque, New Mexico, when a terrifying episode occurred about 20 minutes after his plane left New York's LaGuardia Airport.
Passengers had to take her back to the plane when she was sucked through the shattered window. She died in a hospital in Philadelphia after the plane made an emergency landing, authorities said.
His was the first death of an incident in flight in the company's history, the airline said.
Riordan had dedicated his life to philanthropy, helping others in Albuquerque and the Southwest region, his colleagues said.
New Mexico government officials also mourned the death of Riordan.
"This is a tremendous and tragic loss for Jennifer's family and many others in our city," Albuquerque Mayor Tim Keller said in a statement
"Your leadership and philanthropic efforts make this a better place. every day and will be very surprised, we have Jennifer and her family in our thoughts. "
Riordan volunteered at his children's school, the Annunciation Catholic School in Albuquerque. The school said it was "devastated to lose a full member of our school community."
"She was seen on campus almost daily supporting her beautiful children, she encouraged everyone who was in contact with her," the school said. . "Your positive motivational spirit will be lost, as a community, we will keep Jennifer and her family in prayer."
Riordan was also a parishioner of the Catholic Church Our Lady of the Annunciation in Albuquerque, said the Archdiocese of Santa Fe.
"We pray for the repose of your soul and your beloved ones," said the leaders of the church.
In addition to church and school activities, Riordan had also served on several boards, including the Alumni Association of the University of New Mexico and the New Mexico Broadcasting Association.
One of her previous employers, the Center for Health Sciences at the University of New Mexico, described her as "incredible community leader, team member, wife and mother."
"His passion for our community, our students and our future was unwavering," the health center said in a statement.
Chris Boyette of CNN and Darran Simon contributed to this report.