Hi Lynne!
Welcome to planDisney.
It's always a pleasure to assist my fellow guests from the UK, and I'm happy to help with this question.
Firstly, it's definitely worth taking advantage of the
Free Dining & Drinks offer for 2025. The savings you make by having a free Disney dining plan will hopefully far outweigh any change fees you may incur if you need to alter your travel dates.
The Walt Disney Travel Company Booking Terms & Conditions can be downloaded from here - please scroll down to page 7 for an outline of cancellation and change fees.
These are subject to change so I recommend you call the Walt Disney Travel Company direct on freephone UK number 0800 160 0730 to make your booking and discuss any change or cancellation fees.
Flights will go on sale at around 11 months. You can add a flight to your Disney booking, or you can shop around for flights elsewhere.
September is one of my favourite times to visit!
Mickey's Not-So-Scary Halloween Party should be in full swing by then, along with the
EPCOT International Food & Wine Festival. Lots to look forward to!
Please come back and visit us if you have any further questions, or you can
send me a direct question if you wish. We will be happy to help you plan your magical holiday to Walt Disney World.
Sue