AV8 Cafe at Cotswold Airport (was called Kemble Airfield until recently) is probably the poshest of all the airfield cafes I’ve been to this year. Large inside space if wet and a nice deck outside to sit and watch the planes.
They have a drinks licence and serve decent filter coffee as well as proper espresso if you require.
Separate (hard standing) motorcycle parking as well as a huge car park – I guess they must get pretty busy.
You can find them at Cotswold Airport nr Cirencester GL7 6BA