Detail
Classic: Teleport: Moonglade at 10; Aquatic Form at 16; Travel Form at 30 (+40% run speed, outdoors); no flight form exists in Classic or Forever. Druid-only flights link Nighthaven with Rut'theran Village and Thunder Bluff. Forever Skyborne druids get a bird-themed Travel Form that cannot fly (Wowhead, via existing research).
Confidence note
Classic-baseline (medium on level numbers)