It was later revealed the passenger was anxious about flying and thus behaved unusually, a Jetstar spokesperson said.
“We now understand the customer was a nervous flyer and was experiencing anxiety,” they said.
“We also understand the situation made some other people onboard feel uneasy and they also decided not to continue with their journey.
“As a result of this we had to delay the flight and apologise to customers for the inconvenience.”
Scherri Simpson, a woman on the flight, described the situation as “pretty scary” to The Today Show.
“I was quite concerned, you don’t expect this on a domestic flight in Australia,” she said.
Simpson said she travelled quite a lot but was instantly worried when things turned unusual, saying it reminded her of 9/11.
Others on the flight told 2GB the mention of the Palestine war made things especially tense.
No arrests were made.