Do I need a ship, a zeppelin or the tram?

No. The way is over land, or by flight path.

Can Alliance players make this trip?

Yes, in about 25 min on foot. Horde territory: guards and players will attack you.

Are these times exact?

They are estimates, give or take a quarter: flight times come from real Classic flights, walking times from the real size of each zone, and ships and zeppelins count up to five minutes of waiting.

How to get from Orgrimmar to Gadgetzan in WoW Forever

About 6 min by flight path once you have it, or about 25 min on foot. Times are for a Horde character.

Open this route on the map

On foot

25 min

Travel form

18 min

druids, shamans

Mount 60%

16 min

from level 40

Mount 100%

13 min

level 60

Flight path

6 min

fastest

The way, step by step

Before you have the flight paths. Times on foot.

Start in Orgrimmar
Capital city in Durotar
Cross into The Barrens
Through the Southfury bridge at Far Watch Post · level 10–25
≈ 4 min
Cross into Thousand Needles
Through the Great Lift · level 25–35
≈ 12 min
Cross into Tanaris
Through the Shimmering Flats · level 40–50
≈ 7 min
Arrive at Gadgetzan
Town or outpost in Tanaris
≈ 2 min

With the flight paths

With a 100% mount and the flight paths you have discovered.

Start in Orgrimmar
Capital city in Durotar
Fly from Orgrimmar to Gadgetzan
Flight path · time measured in Classic
≈ 6 min
Arrive at Gadgetzan
Town or outpost in Tanaris

And the way back?

From Gadgetzan to Orgrimmar: about 6 min by flight path, or 25 min on foot.

Open the way back on the map

Questions

Do I need a ship, a zeppelin or the tram?: No. The way is over land, or by flight path.
Can Alliance players make this trip?: Yes, in about 25 min on foot. Horde territory: guards and players will attack you.
Are these times exact?: They are estimates, give or take a quarter: flight times come from real Classic flights, walking times from the real size of each zone, and ships and zeppelins count up to five minutes of waiting.