Shortest Flight(s)
After reading previous posts I wouldn't claim the shortest. However, I did 3 seasons of display flying (1 on Lightning F1A & 2 on the Phantom) and have quite a number of 10 minute sorties logged, and at least one 5 minute sortie on each of those types. But one claim I will make is that of taking the greatest number of sorties to achieve 1,000 hours on the Phantom.
But you may be interested in the story of 2 junior pilots on 92 Sqn, who were scheduled for a 1v1 combat sortie on the first wave of the day (0830 take-off) in F2As (big ventral). The Boss, a gruff Scot, arrived in the Ops Room after morning met brief (also 0830) to see the 2 JPs busy filling in the auth sheets. Said Boss inquired none too gently why the .... they hadn't walked yet, to be met with the sheepish response that they were signing in! Since the Boss was hot on getting the monthly hours as well as a stickler for punctuality, the resulting conversation was decidedly one-sided.