To my Shiro apartment from anywhere not Othard: 249 gil

Prices to Othard destinations (other than Kugane) from my apartment: 333 (Tamamizu) to 480 (either Azim Steppe destination) with the others falling in between.

Those amounts are without the Reduced Rates buff from FC actions or squadron manual (would be less if I were buffed by either).

So that's 582 to get to Tamamizu or 729 to get to Reunion/Dawn Throne versus the 999 it would cost to go to either directly.