Flaaffy locations — where to catch

In Lumiose City (Legends: Z-A)

• Wild Zone 16 — Walk
• Wild Zone 6 — Walk

In Paldea (Scarlet & Violet)

• South Province (Area Six) — Walk
• West Province (Area Two) — Walk

In Sinnoh (Diamond, Pearl & Platinum)

• Route 222 — Walk

In Johto & Kanto (HeartGold & SoulSilver)

• Route 42 — Walk
• Route 43 — Walk

In Johto & Kanto (Gold, Silver & Crystal)

• Route 42 — Walk
• Route 43 — Walk

Other games (3)

• Brilliant Diamond / Shining Pearl (Gen 8): Route 222
• Ultra Sun / Ultra Moon (Gen 7): Poké Pelago, Poke Pelago
• Colosseum (Gen 3): Pyrite Town

Flaaffy — full Pokédex entry