Some buses running in York today (Boxing Day)

Boxing Day New for Boxing Day running every 30 minutes from 8am to 6pm

4 – Acomb – Foxwood Lane and York city centre
5 – Earswick via Huntington and York city centre
6 – Tang Hall, York city centre and Clifton Moor

Park & Ride buses to York city centre running every 15 minutes from 8.30am-6pm/6.30pm

3 – Askham bar
7 – Designer Outlet
9 – Monks Cross

More at https://www.firstgroup.com/york/christmas-timetable-0