my dad has been working out, and using the cheapest flight from A to B for over 50 years. And he's still very good at it. If you gave him an option to say "I

my dad has been working out, and using the cheapest flight from A to B for over 50 years. And he's still very good at it. If you gave him an option to say "I want to get from A to B for the best price, I don't care much about the route, and I want it to take X days, suggest something to me" I'm sure he would be interested.