I remember a fire-fighters strike affecting Manchester International - it became the biggest unlicensed airfield in the UK at the time.
No airline traffic what-so-ever. General Aviation able to do touch and go's (paying for each, of course) if they had a full pilot licence.
The schools on the field had to depart MAN, fly 12 miles North to Barton, do a touch and go there to "start the lesson from a licensed airfield" - do another touch and go at Barton on the way back "to finish at a licensed airfield" - then position the 12 miles back to MAN with the instructor flying (not loggable).