World's Smallest Airport?

Grimsey Airport

In flying to Grimsey Island, I believe I have found the world's smallest airport with regularly scheduled commercial air service.  It's certainly the friendliest.  It's basically a one room building next to the tarmac.  There is no baggage carousel or jetway.  Just walk out the door.  

Mom and Mona walking to the airport --
with mainland Iceland in the background

You can actually walk there which is what we did -- and a promise that the plane wouldn't leave without us.  As our host told us, "If you're not here when the plane is supposed to leave, I'll come get you."  Now that's great service.