The survey of 1,600 people reveals young adults are disproportionately less inclined to attend a festive service than the UK population generally.
Overall, nine per cent of those who responded said they will be found among a congregation on 25th December, while a quarter said they would at some stage during Christmas.
People living in London are most likely to join a flock on Christmas Day (14 per cent), with more than a third (34 per cent) planning to go at some point during the festive season.
The figures have been published amid a gradual, long-term decline in church attendance within the Church of England and other historically significant UK church denominations.
Harry Carr, Head of Sky Data, said: "Immigration of Christians from Eastern Europe and Africa has helped to stem the decline in church attendance in some areas, with London home a greater number of migrants than any other region - around three million foreign-born people living in the capital."
Christmas is still the time of year when people are most likely to go to church - with only one in 100 attending on an average Sunday.