Growing up and living in the Hawaiian Islands:
HA and AO (Aloha now defunct)
HNL-LIH: 18 minutes on HA DC-9 10/30/50, MD-81 now B-717; AO BAC 1-11 200 and B 737-200/300/400
In 2004, HA used to operate HNL-LNY-MKK-OGG with 717s, each segment probably had a 7 min. flying time.
I seem to recall over 20 yrs. ago UA operated SFO-OAK as short turn with B-747s but I stand to be corrected on that.