The launch last November was the earliest Tui has put its summer holiday programme on sale. The operator says it will add a further 2,000 hotels bookable for summer 2020 later this month.
Tui said the move came in response to consumer behaviour, with more customers – particularly families – wanting to book earlier.
Its launch was complemented by a range of sales initiatives, including free kids’ holidays and low deposits, with a new direct debit scheme also now available.
More than 60% of Tui’s summer 2020 bookings from Britons are for mid-haul destinations such as Cyprus and the Canaries, while Florida has proved popular for long-haul Disney breaks.