Tiffani fell asleep on the flight to Toronto and woke up several hours later on a dark, empty and locked up aircraft at Toronto International Airport.

She shared her harrowing experience on Facebook which has now gone viral on social media.

“I wake up around midnight (few hours after flight landed) freezing cold still strapped in my seat in complete darkness (I’m talking pitch black) as someone with an anxiety disorder as is I can tell you how terrifying this was...I think I’m having a bad dream bc like seriously how is this happening!!?!” Tiffani wrote on Facebook.

Tiffani said she started panicking after realising she could not charge her phone as the aircraft had turned off the main power. Imagine being caught in a big aircraft with no way out; it's a death wish for a person suffering from anxiety.

Luckily, Adam found a a torch in the plane’s cockpit and eventually made her way to the aircraft’s main door.

She eventually opened the door, only to find herself around 50 ft above ground and knew that taking the plunge from the aircraft would mean death.

She had no choice but to sit at the edge with her legs dangling out of the aircraft while sending out distress signals with her torch.

She then flagged an airport employee down who was flummoxed to see her in the aircraft. “He [asked] how the heck they left me on the plane,” Ms Adams said, describing her rescue.

For which Adams said that she had no clue either. And neither does anyone else.

But Adams' trick worked because she was then escorted by the employee to the airport when she met Air Canada reps, reports Ladbible. A spokesperson who spoke to The Independent confirms that the incident took place and Air Canada currently looking in to the matter.