Sam Pratt is a very generous granddad. 

He took 33 members of his family on a dream trip to Hawaii after amassing more than a million miles and cashing them in with Southwest Airlines so the entire brood could fly for free. 

Pratt had just recently been given a clean bill of health following a battle with cancer, so he wanted to celebrate with the whole family. 

"It's the trip of a lifetime," he said.

So how can you do something similar? Make sure to keep an eye out for a good deal. 

"In this case in particular, Southwest had a great sale to Hawaii and he took advantage of that," Scott Mayorowitz of The Points Guy told Inside Edition. "Next thing you know, three dozen family members are joining you in paradise."

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