Hi Bianca!
Welcome to planDisney.
It's always a pleasure to assist my fellow guests from the UK, and I'm happy to help with your question about park tickets.
Tickets for 1-2 days are available, but unfortunately, you cannot buy these tickets from the UK. Once you arrive in the US you can purchase tickets at any Guest Relations window at all the Walt Disney World theme parks, and
water parks, and at the Ticket Center at
Disney Springs. You can also buy tickets online in the US at https://disneyworld.disney.go.com/admission/tickets/theme-parks/.
These are approximate prices, as I don't know your exact dates, but for the end of July 2024, an adult 2-Day Ticket with admission to 1 park per day is US$318.03 (including tax), and if you want to add Park Hopper option, the total would be US$403.23 (including tax).
Prices are subject to change, and park hopping is subject to park capacity.Please come back and visit us if you have any further questions, and you can
send me a direct question if you wish. We are here to help you plan your magical holiday to Walt Disney World!
Sue