"He was clearly a Hasidic Jew," said Yves Faguy, a passenger seated nearby. "He had some sort of cover over his head. He was reading from a book.
"He wasn't exactly praying out loud but he was lurching back and forth," Faguy added.
The action didn't seem to bother anyone, Faguy said, but a flight attendant approached the man and told him his praying was making other passengers nervous.
"The attendant actually recognized out loud that he wasn't a Muslim and that she was sorry for the situation but they had to ask him to leave," Faguy said.