The leveling route took 4 hours and 31 minutes.
The Waking Shores
Once you reach the area, complete the quests until you reach Wingrest Embassy.
It is absolutely necessary to take no detours for rares, treasures, or side quests.
At Wingrest Embassy during the Sendrax RP, complete “From Such Great Heights” and “Give Peace a Chance” side quests.
If any side quests haven’t been mentioned, skip them.
Follow the campaign questline until you reach Scalecracker Keep. Here, finish off Dragonhunter Igordan (Bonus Objective) while you complete the main objectives. You should also complete the bonus objective in the area provided it is not overcrowded there.
As you complete the quest to heal draconids, complete the “Fighting Fire with… Water” side quest at the nearby cave since it is along the path.
When you reach the Life-Binder Conservatory, keep an eye on “Firava the Rekindler” rare and kill it.
Ignore the nearby side quests. Once you reach the Ruby Life Pools, talk to Lifecaller Tzadrak and set your Hearthstone there.
After completing the quests, use your Hearthstone to return to the Ruby Life Pools.
In the next area, you will find two rare mobs “Terillod the Devout” and “Klozicc the Ascended”.
When you reach Obsidian Bulwark, speak to the innkeeper to set your Hearthstone here. However, you must be in a guild and your Hearthstone must only be on a 15-minute cooldown. Otherwise, it won’t be worth it.
You should only fly on Wrathion’s back for the “Taking the Walls” quest, as it’s significantly faster compared to Dragonriding.
After receiving the quest “Black Wagon Flight”, use your Hearthstone to quickly return to the Obsidian Bulwark. While completing the quest, make sure to stay close to the cart at all times.
When you complete a few more quests at the Ruby Life Pools, Alexstasza will direct you toward Ohn’ahran Plains.
You will learn more about the routes for the other zones in the video guide linked below.