"S Narayan" wrote in message
...

Depends. I forgot to do it once at a remote airport without tower. I
realised about an hour later and called in to close the FP and they told
me
they were trying to find me and had asked other pilots about my aircraft.
Fortunately a full scale search had not developed. Glad I called in and
checked with the FSS. Felt like an ass. So, it could be an inconvenience
to ATC and other pilots, so don't take this lightly.


He's talking about a VFR flight plan. There's no connection between control
towers and VFR flight plans, ATC wouldn't even know if you had filed a VFR
flight plan or not.