Where to find Finneon in Sun, Moon, Ultra Sun & Ultra Moon

SOS Encounter: Hano Beach (15%), Route 1, Route 14 + 8 more
Surf: Route 1 (40%, Only in Sun & Moon), Route 14 (40%), Route 15 (40%) + 7 more
Unknown: Route 8, Hau'oli City (Only in Sun & Moon), Route 1 (Only in Ultra Sun & Ultra Moon)

Finneon also appears in

How to get Finneon in Sun, Moon, Ultra Sun & Ultra Moon

Its base catch rate is 190 out of 255 (higher is easier); the catch rate calculator works out your odds with each ball. For the look, the best colour match is Dive Ball, Net Ball or Strange Ball.

Evolution: Finneon → Lumineon (Level 31).

Finneon in every game · Pokémon Sun, Moon, Ultra Sun & Ultra Moon interactive map (Alola)