Swellow locations — where to catch

In Sinnoh (Diamond, Pearl & Platinum)

• Route 213 — Walk

In Hoenn (Ruby, Sapphire & Emerald)

• Route 115 — Walk

Other games (5)

• Brilliant Diamond / Shining Pearl (Gen 8): Route 213
• Ultra Sun / Ultra Moon (Gen 7): Ultra Space Wilds
• Black 2 / White 2 (Gen 5): Route 13
• Black / White (Gen 5): Giant Chasm, Unova Route 13
• XD (Gen 3): Citadark Isle

Swellow — full Pokédex entry