If you've been backpacking around multiple countries or have travelled long-term, then you'll have probably asked this question yourself or to others at least once.
It's one of those travel questions that doesn't really have a definitive answer, leading you to panic that you could be turned away at the border or refused access to your plane.
I was definitely one of those people.
As someone who a) had never backpacked before and b) not flown longer than 4 hours to a destination, I felt completely clueless when it came to this.
When we were leaving for New Zealand, it wasn't really clear when I looked online about whether we would need a flight out of the country and so we decided to chance it. However, when we arrived at Heathrow at 5am for check-in, we were presented with the question, "Do you have onward travel out of New Zealand?".
Before we knew it, we were looking frantically on our phones to book a flight to Bali for just over a month later.