TravelSupermarket has seen a 28% increase in family searches and a 13% rise in couple searches for all-inclusive holidays this year compared with last year.
This makes it 55% of seven-night 2020 summer holiday price inquiries being made by families and Britain’s most popular holiday type.
It comes along with a decline in interest for room-only and half-board booking options.
"Volatile euro exchange rates over the last few years since the Brexit referendum is a key factor," said Emma Coulthurst, TravelSupermarket’s travel commentator.