Charlie!!!!! (spotting at Brize Norton)

Well...half term is upon me and I need something to keep me occupied. My young persons railcard has arrived in the post, so I can access cheap train fares 
My question is not where to go at Brize, I have a good guide, but the best day of the week to go in terms of activity....is it sporadic and unpredictable? Or are there certain scheduled flights which are pretty much guaranteed? I can easily get a cheap ticket to Oxford then a bus all the way to Brize from the station.....
.mic

My question is not where to go at Brize, I have a good guide, but the best day of the week to go in terms of activity....is it sporadic and unpredictable? Or are there certain scheduled flights which are pretty much guaranteed? I can easily get a cheap ticket to Oxford then a bus all the way to Brize from the station.....
.mic