Currently, players are able to save money by travelling to the Heart of the Mists, followed by taking the Portal to Lions Arch before travelling to their destination of choice via waypoint (assuming the destination is closer to LA in comparison to their current zone). However, this takes too many steps.
I propose a simple solution:
Have the game calculate the cost involved from going to each waypoint from LA and each of the 4 cities, and have it compared against the cost of going directly to that waypoint from the player’s current location. The game should pick the lower of the 2 costs and have that price displayed and implemented. The end result is being able to skip all that unecessary travel, allowing players to travel from A to B the fastest and cheapest way possible.