The sight of his father on the podium, Hamilton said, marked the culmination of an extraordinary journey.
"My favourite moment was just getting to Formula 1, you know, we just couldn't believe it," said Hamilton while answering questions from fans on the Mercedes YouTube channel.
"There were so many dark and tough moments where we really thought that it was it and it was not going to happen.
"And we just never gave up. Seeing my dad when I won my first race in Montreal looking down at him on the podium, was so validating to know that all the late nights, the travelling that we did, the adversity that we faced, just felt like it was all worthwhile."