Niche route, though not all OW but mostly.

1. BA to GCM

2. GCM to HAV on Cayman Airways daily flight. Was popular with Americans until the relaxation. No TP, no lounge (unless you fly Sir Turtle Class), 45 mins in the air, free rum punch and 2 checked bags. With luck you’ll get the nice new 737-800 and not the ahem well used 737-300.