UK school holiday pricing follows a predictable pattern most travel sites are built around. Eid and Diwali don't follow the same calendar logic — they shift each year and create demand spikes that aren't tied to half-term dates. If your travel is tied to a festival, treat the festival date as your primary planning anchor, then check UK school holiday overlap separately.
School holiday dates are fixed by term calendars; Eid and Diwali shift each year against the Islamic and Hindu lunar calendars. In years where a festival falls inside a UK school holiday window, expect the steepest fares of the year — both demand spikes hit the same dates at once. Check both calendars separately before assuming "half-term" and "Eid" mean the same pricing pattern every year.