As an example, back in 2000 I spent some time in the Falklands. One day I was in Stanley, when I noticed the BAS Dash 7 making an approach to Stanley Airfield.
Thought I'd go for a look and was invited aboard by some very friendly gents. "Where have you come from today?" I asked. "From here, 5 hours ago!" came the response.
It seems they had set off for Rothera, flown south for 3 hours, and due to encountering stronger than forecast headwinds, had to turn back as they weren't going to make destination.