Whether you can get a full refund when canceling a TUI holiday depends entirely on the reason for the cancellation and the timing. If TUI cancels the holiday (e.g., due to flight issues, hotel closures, or government travel advice), you are legally entitled to a full cash refund within 14 days. However, if you choose to cancel, a full refund is rare unless you have a specific "flexible" booking or are within a very short grace period. For standard package bookings in 2026, canceling more than 70 days before departure usually results in the loss of your deposit. As the departure date approaches, cancellation fees increase significantly: canceling 28–15 days before travel often costs 90% of the total price, and canceling within 14 days usually results in a 100% loss. If you are canceling for a medical reason or bereavement, you may be able to claim the costs back through your travel insurance rather than from TUI directly. Always check your specific booking terms, as "Flight Only" or "Third Party" hotel bookings may have different, often stricter, refund rules.