Instructions
Locate a zeppelin docking station connected to the Orgrimmar hub in one of the following areas: the Grom'gol Basecamp in Stranglethorn Vale, the Undercity in Tirisfal Glade, Thunder Bluff in Mulgore, Warsong Hold in the Borean Tundra or Vengeance Landing in the Howling Fjord.
Find the Durotar zeppelin master at the docking station and wait nearby for the zeppelin to arrive. Board the zeppelin and wait for departure. Exit the zeppelin when you dock in Orgrimmar's Valley of Strength. Leave the city through the front gate to enter the Durotar zone.
Use the wind rider network to fly to a Durotar flight point from a nearby zone on the Kalimdor continent. Travel to any major city or village and speak to the local Wind Rider Master to board a wind rider flight.
Select Orgrimmar as your destination on the Wind Rider Master's pop-up flight map. A small transportation fee, determined by the length of the trip and your reputation standing with the flight master's home faction, is deducted automatically when you select your destination.
Use Horde portals in the following cities to teleport instantly to the Durotar zone: Dalaran, Tol Barad, Dragonmaw Port, Nordrassil, the Temple of Earth in Deepholm, Ramkahen and the Kelp'thar Forest of Vashj'ir. Approach the portal and right-click on it to teleport to Durotar.