Flynn went to Liverpool's Melwood training ground this week to watch the Premier League giants at work.
Liverpool's assistant first-team coach Pep Lijnders was on the same Football Association of Wales coaching course as Flynn and helped arrange the visit.
"It was a fantastic experience," Flynn said.
"I got to speak with Jurgen Klopp, who treated me exceptionally well. He was very complimentary and full of respect and class.
"I'm always looking to improve and was very fortunate I was allowed up there. For me it was surreal because I'm a Liverpool fan.
"It's great to see how the top professionals do it day in, day out.