What is the shortest regularly scheduled commercial flight? Interesting to know is this flight profitable or not.
Why this route exist?
Maybe train or car will be cheaper?
Westray to Papa Westray

Flights on this route are scheduled for one and a half minutes, and actual flying time is closer to one minute. The record for the fastest flight is 53 seconds.

By road/ferry it's 59 minutes according to Google Earth:

It's flown with a Britten-Norman BN-2 Islander.