Where to find Butterfree in Black & White / Black 2 & White 2

Only in White & White 2
Walk: Route 12 (5%, Only in White), Hidden Grotto (Only in White 2)
Hidden Grotto: Pinwheel Forest (20%, Only in White 2)

• Hidden Grotto — Walk
• Pinwheel Forest — Hidden Grotto
• Route 12 — Walk

Butterfree in every game · Pokémon Black & White / Black 2 & White 2 interactive map (Unova)