Now I can’t remember how I found this but I know it was after getting back from Iceland in 2013.
You can book a flight from a variety of different airports around the UK (including Bristol) that take off, fly around, then land back at the same airport.
These flights head off as far North into British airspace as they can and hunt around for the Northern Lights.
Then they come home.
Now even in a plane you’re not guaranteed to see the Northern Lights (I’ve seen claims of 80% on websites) but this sounds like a particularly awesome thing to do – you even get a pre-flight talk.
I think it costs in the region of £200 for a jaunt in a plane but I’m adding it to the ‘to-do’ list anyway!