The tiny baby has reportedly suffered a seizure and turned purple as he found himself unable to breathe, prompting US Airways Flight 678 to make an emergency landing.
However heroic passenger Garrett Goodwin quickly leaped into action, gently taking hold of the infant and performing CPR.
And, as the dramatic video shows, everyone was relieved when the little boy was revived; there were cries of joy across the entire cabin:
Mr Goodwin told Fox 10: "I did chest compressions, cleared his mouth, gave him some rescue breathing, stimulated him.
"He came back around.
"I was in the right place at the right time with the right experienced training and I hope anybody with any amount of training would have done that."
The plane made an emergency landing to ensure the safety of the tiny baby and, according to reports, he is now safe and well.
It's so wonderful to see how much people will do to help in a situation like this, isn't it?