The data revealed people in the north-east were the biggest pre-holiday spenders, at an average of £220 per person, followed by Londoners.
Meanwhile, people from the south-east are the most frugal when it comes to pre-holiday shopping, spending around £150 per person on average.
According to chief executive Julia Lo Bue-Said, the data highlights the contribution of outbound travel to the UK economy, which amounts to a total of £49 billion per year.