A Boston dad has been convicted of repeatedly fondling a teen girl aboard a JetBlue flight.

Jonathan Alan Lefman, 48, was found guilty after a three-day jury trial of sexually abusing a 17-year-old girl seated in front of him on a Boston-bound flight from Puerto Rico on Aug. 30, 2024, the US Attorney's Office in Massachusetts announced on Thursday.

Lefman - who was on the plane with his wife and four kids - wedged his hand between the back and bottom of the seat in front of him to touch the girl's buttocks without her permission, according to prosecutors.

Jonathan Alan Lefman, 48, of Newton, Massachusetts, was convicted of touching a 17-year-old girl aboard a flight from Puerto Rico to Boston in August 2024, as of Oct. 16, 2026. DOJ District of Massachusetts

The teen girl saw the creep dad's reflection leaning between the seats in the seatback monitor in front of her, and was able to take a picture of his fingers protruding between the back and bottom of her seat, officials said.

Lefman's son, who was 16 at the time, sat to the left of him while he fondled the girl, according to an affidavit in support of an application for a criminal complaint.

After getting off the plane, one of the girl's adult female family members who was traveling in a different row confronted Lefman and reported his perverse behavior to a JetBlue supervisor - showing a video of his fingers as evidence.

Jonathan Alan Lefman is seen outside court in February 2025. WCVB Channel 5 Boston

Lefman, who lives in a $2.3 million home in Newton, claimed he had been stretching and apologized. When confronted with whether his fingers captured on camera were familiar, he told investigators,  Not really, no. 

He was found guilty of one count of abusive sexual contact while in the special aircraft jurisdiction. He is slated to be sentenced on Jan. 12, 2027.

He faces up to two years in prison, five years to a lifetime of supervised release, and a fine of up to $250,000.

 The defendant repeatedly sexually abused a minor who was simply trying to travel safely aboard a commercial flight,  US Attorney Leah B. Foley said in a
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