As Canadane said, one of the old (never used) 1.0 airship ramps still exists and is found in South Shroud - it's been taken over as a hideout by the Moonkeeper bandit tribe the Courelcutters (a FATE spawns there called 'A Tale of Two Tails', against the Bandit leader Yabbi Two-Tails).

Apparently airships dock at Highbridge based on npc dialogue, but sadly that is never actually shown.