Originally Posted by
WHBM
By no means unknown. People go on pre-booked holiday with family, then go back for one day, key board meeting, signing commercial documents, colleagues' funeral, etc. You even get some day returns if schedules allow. Obviously the revenue department at the airline are fine with it ! Over on FlyerTalk they are past masters at this, sometimes referred to there as a "Mileage Run".
Thanks for the info. I didn’t know you could just go for the day as the Spanish PLF asks for accommodation details!