There is still quite a lot of accommodation in York for the Christmas Dinner. Check the internet.
We have booked at the Swann, and I think they still have a few rooms left.
Also the Kookabura had some rooms available.
There are several places within a five to ten minute walking distance, or others with a five to ten drive.
I have been told that the meals at Saint's are large size, and good value.
See you there
Lefty