Nice sheet! The route planner currently in my airship log spreadsheets determines shortest route as well as time and distance, so it only works for 1-3. So, this is nice for 4-5 stop trips. (I'm still trying to figure out how to expand it to 4 or 5, but without variables, I'm having a ton of trouble with shortest path algorithms.)

A few quick things - you have "Home" as an option in the trip planner, but that's not a valid choice. How are you determining distances between two sectors? Are you using a table where you calculated every single pair's true distance, or are you using the coords that Lauphin Faux of Sargatanas derived (they're listed in the airship log spreadsheets) along with the distance formula? (That's one big flaw with my trip planner - I'm not yet using his coords since without a lookup table, it'll increase the complexity of my shortest path algorithms by at least 2x.) Are you using Lauphin's time formula?