Hi Kelly,
Welcome to the Disney Parks Moms Panel! We're always happy to hear from our friends from the U.K.
First the easy part of your question: Yes, the ticket windows at all four Walt Disney World theme parks offer a full range of admission options for purchase, from single-day tickets through annual passes. They will certainly be able to help you find the right ticket for your visit when you arrive at the gate.
Because so many guests now purchase their tickets online in advance, I've noticed shorter lines at the windows recently. Still, I would recommend that you arrive at least 30 minutes before the park opens to give yourself time to consider your
ticket options and make your purchase. That way you won't miss a single minute of fun in the theme park.
The second part of your question is a little more difficult. The cost of Walt Disney World admission varies depending on the time of year, the day of the week and the number of days you buy. As I look at the
ticket price calculator here on the website in the U.S., the price per day for a two-day base tickets in February appears to range from about $110 to about $130 per day. The child's price is always a few dollars lower. Please note that all prices are estimates and subject to change.
I hope that gives you some idea of how much to budget for your admission tickets, Kelly, even if it isn't definitive. Please let us know if you have any more questions as you make your plans. See ya' real soon!
Wilma