The operator said it had seen a 310% year-on-year sales surge for Costa Rica - hailing a direct British Airways service from Gatwick to San Jose launched last year as helping to fuel demand.
Elsewhere, Canada makes its first appearance on Kuoni’s top 20 best-selling destinations list, moving up four places into 19th position.
Helping back its rise, Kuoni believes, is the publicity surrounding the destination’s 150th anniversary of its Confederation and Canadian prime minister Justin Trudeau’s “cool not cold” tourism drive.
