This Monday (19 Dec) the International Space Station rises in the West (Bristol direction) at around 5.08 pm and goes down in the East at 5.14 pm. If there's no cloud it will definitely be visible - the pass is classed as "bright".
There's another chance to see "Santa's Sleigh" on Wednesday from 5.01 pm to 5.05 pm, but it will be much lower. Weather permitting, the Monday pass will be much easier to spot.
Details of other passes are available from:
Just the thing for families with small children. We can't promise that you'll see any reindeer, though some children have reported that they've seen Santa waving...