Plane passenger Tom Feehan was on a plane when he saw another jet fly past - and was stunned at how fast it was going.

In the clip, filmed on a flight from Vancouver to London in October last year, the passenger sees another plane flying under his own and decides to film it because he is so surprised at the speed it is going.

“I was coming back from Vancouver to London and just caught a glimpse of a plane zooming under plane I was on and was amazed at the speed (it was) passing.

“It’s amazing, I love flying, you barely think you’re moving at all on your plane. I was thrilled how fast it went by.” Feehan says later online.

I was coming back from Vancouver to London and just caught a glimpse of a plane zooming under plane I was on and was amazed at the speed passing as u think ur hardly moving at all so I managed to wait and see if another one came past so kept my phone out and was thrilled when one did and how fast it went past