Hey there, Katie, and welcome back to planDisney. I love your plan. Trying to sneak in one last Lightning Lane Pass before Mickey's Not-So-Scary Halloween Party. Brilliant!
After talking with two Guest Service representatives and their supervisors they told me that they are unsure at this time what the latest Lightning Lane return time will be. They also repeated several times that you will have the most options if you are staying on Disney property because those guests can book Lightning Lane Passes seven days in advance. In my opinion, the last
Lightning Lane Pass for
Seven Dwarfs Mine Train should have a return time of 5:55 PM on
Mickey's Not-So-Scary Halloween Party nights but we have to wait until seven days before the first party to see the official times. I think 5:55 PM because it makes the return time a full hour and is likely one of the reasons the Halloween Party starts at 7:00 PM. Lightning Lane Passes are subject to availability.
A trick we use to get one last ride in before the theme parks officially close is to get in the line before the posted closing time. So if you wanted to ride Seven Dwarfs Mine Train without a Lightning Lane Pass you could get in the standby line by 6:00 PM.
Katie, I hope this information is helpful as you approach your enchanted adventure in a few weeks. Please feel free to
write me back directly with any follow-up questions or for other Disney vacation planning tips.
Enjoy making many Magical Memories.
~Jason