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

Yes, on foot the way uses: Make your way to Orgrimmar zeppelin towers; Zeppelin from Orgrimmar zeppelin towers to Tirisfal zeppelin towers.

Can Alliance players make this trip?

Yes, in about 37 min on foot. Horde territory: guards and players will attack you. Stop order on this line is not confirmed yet.

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 Thunder Bluff to Undercity in WoW Forever

About 9 min by flight path once you have it, or about 21 min on foot. Times are for a Horde character.

Open this route on the map

On foot

21 min

Travel form

16 min

druids, shamans

Mount 60%

15 min

from level 40

Mount 100%

13 min

level 60

Flight path

9 min

fastest

The way, step by step

Before you have the flight paths. Times on foot.

Start in Thunder Bluff
Capital city in Mulgore
Cross into The Barrens
Through the pass west of Camp Taurajo · level 10–25
≈ 3 min
Cross into Durotar
Through the Southfury bridge at Far Watch Post · level 1–10
≈ 8 min
Make your way to Orgrimmar zeppelin towers
Zeppelin tower in Durotar
≈ 3 min
Zeppelin from Orgrimmar zeppelin towers to Tirisfal zeppelin towers
Classic route
2–7 min
Arrive at Undercity
Capital city in Tirisfal Glades
≈ 1 min

With the flight paths

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

Start in Thunder Bluff
Capital city in Mulgore
Fly from Thunder Bluff to Orgrimmar
Flight path · time measured in Classic
≈ 3 min
Make your way to Orgrimmar zeppelin towers
Zeppelin tower in Durotar
≈ 1 min
Zeppelin from Orgrimmar zeppelin towers to Tirisfal zeppelin towers
Classic route
2–7 min
Arrive at Undercity
Capital city in Tirisfal Glades
≈ 1 min

And the way back?

From Undercity to Thunder Bluff: about 9 min by flight path, or 21 min on foot.

Open the way back on the map

Questions

Do I need a ship, a zeppelin or the tram?: Yes, on foot the way uses: Make your way to Orgrimmar zeppelin towers; Zeppelin from Orgrimmar zeppelin towers to Tirisfal zeppelin towers.
Can Alliance players make this trip?: Yes, in about 37 min on foot. Horde territory: guards and players will attack you. Stop order on this line is not confirmed yet.
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.