Originally Posted by
piperboy84
I wanted to leave 45 minutes earlier from Cascias (lisbon) on a VFR flight plan and they wouldn’t have it, I had to shut down go back into terminal and refile. 2 weeks ago I left earlier than scheduled from Forfar to Calais and again on the return Calais to Forfar and neither Lille control or Leuchars cared, they just opened it. So I’m guessing it’s the luck of the draw.
I personally don't think it matters as long as a DEP is sent.
If you do need to refile, you actually don't! To bring an IFR flight plan forward, you have to cancel and re-file, but with a VFR plan, you can just send a CHG with the new ETD.