The furious pop star, 37, took to Instagram to call out the budget airline, threatening to boycott Jetstar and even called out a customer service representative by name.
Paulini wrote on her Instagram story: "@jetstaraustralia overbooked my flight and bumped me after their customer service Meagan made me stand in line, all the while knowing that this line would cause me to be bumped."
The singer signed off her message to Jetstar and its parent airline Qantas by stating she will never fly with the carriers again, sassily writing: "Byeeee."
The singer later updated fans on the saga by informing her followers that Jetstar had lost her luggage, writing on her Instagram: "Wow @jetstaraustralia Now my bags have not arrived".