"Looking at me, you know, I look like a woman and I am a woman. So, that's great," Montoya explained in her video.
"But, going through the scanner, I always have an 'anomaly' between my legs that sets off the alarm."
Montoya said in incident before the flight to LA, the TSA attendant asked if she had anything down her pants and she said 'no', so she was scanned a second time, which triggered the alarm again.
"So, I was like, 'Look, I'm trans. Just pat me down'," Montoya said.
"And her solution was, 'Do you want to be scanned as a man instead?' I didn't. But, I ended up doing it and then my boobs set off the scanner because, of course."
Montoya said she was told she had to be patted down and was asked if she wanted a male TSA agent to do it, to which she said no.
Trans passengers have spoken in the past about their difficult experiences with TSA staff and the agency's use of binary scanning technology.
Montoya said the experience left her feeling "dysphoric and disrespected".
In a follow up video, Montoya explained how she felt the TSA "can do better".
"The root solution is simply believing transgender people when they tell you who they are," she said.
"We should stop enforcing gender roles and forcing people to try to fit into these boxes that no one truly fits into.
"Transgender people shouldn't be expected to assimilate into cis-normative standards of image. Because not all of us want to transition or go on hormones or have surgery, and that is valid."
She said it should also be easier for trans people to change their gender marker and name on legal documents, and acknowledged while her ID legally recognises her as female, that was a privilege not all trans people had.
Montoya said she has spoken to the TSA about her experience and said she was willing to work with them to improve their systems.
