The consumer group said holidays to some British destinations currently cost hundreds of pounds more than trips to equivalent European destinations, even when airfare is factored in.
The cost of a seven-night break this August to a "highly rated hotel" in Italy was reportedly around a quarter of the price of a comparable holiday in the Lake District.
Seven-nights accommodation in Lake Garda cost £631, while a week-long stay for two people in Lake Windermere would cost £2,381.
Data from AirDNA also showed that UK self-catered accommodation in August 2021 costs 41% more on average than it did in 2019. This works out at roughly the equivalent of an extra £300 per week.
