The findings come after the brand asked 3,000 people how they plan to travel in 2023, with 67% of respondents saying they are now looking for more "ethically responsible destinations".
For 12% of holidaymakers, this was the most important factor when considering their holiday.
The study also found that despite the cost-of-living crisis in the UK, almost no-one plans to give up holidaying entirely, 51% plan to swap to a cheaper destination and 12% have already booked somewhere cheaper for next year’s break.
More holidaymakers are also looking to swap their overseas holiday for a UK trip, with 12% of Brits already committing to a UK break and 41% considering it.
81% of those surveyed said they’d spent more time researching their 2023 holiday, to keep expenses down.
For the second year in a row, Greece and Turkey saw the biggest rise in popularity, with both countries seeing double the bookings they did in 2019.
David Norris, chief growth officer at Holiday Extras, said: "As we move towards 2023, our research and data shows that the cost-of-living challenge isn’t stopping people planning their holidays, but spending more time considering their choices.
"Instead holidaymakers are looking for cheaper, more adventurous, more ethical alternatives to where they’ve gone before and they are willing to put the hours of research in to ensure they are getting the most value for their money."