Visualizing Airline Routes and Hubs – Saumik Narayanan
XPFlightPlanner - How to generate a flight plan for X-Plane?
Creating Flight Paths in Tableau – datavis.blog
Flights at Night: Mapping airline routes on NASA's night lights images | Lisa Hehnke
Create Animated 3D Map Routes with This Easy After Effects Plugin
Create flight route map in tableau- Part 2 Buffer calculation and application - The Data School Down Under
Animation Tutorial For Beginners How to Create Flight Route Map | Canva Art Design - YouTube
I used Python and BTS data to create open-source route maps from 1999 and 2018 (see corresponding comment for clarifications + GitHub link) (updated with great circle lines and westbound trans-pacific routes) :
How to create a flight plan in Microsoft Flight Simulator - Polygon