I'm hoping to maximize my time in Edinburgh by taking the sleeper train from Edinburgh to London early Saturday morning - arriving London Euston around 7am Saturday morning. This seems to allow ample time for me to get to my flight out of London later that afternoon if everything runs as scheduled.
Is the sleeper train reliable Saturday mornings? Does it ever get cancelled or normally delayed? I checked the Engineering section of the Scotrail site and don't see anything planned for this line. Is there anywhere else I should check?
Thank you in advance for your help.