Lilly Quinn and Sarah Little managed to do it without spending a dime beyond their £300 flights from the UK.
They spent five months travelling thousands of miles across 48 states, taking in some of the most epic landscape on earth.
"We wanted to do something challenging," explains 29-year-old Lilly.
So how did they do it? They hitch-hiked, couch-surfed and even used Tinder. Here are their top tips.
Take the leap, just go for it
"Having no money meant we were pushed to get out there and meet as many people as possible," Lilly explains.