The White-fronted Tyrannulet ranges from Central America into northwestern South America. It has an olive back, bluish-grey crown, and a pale eyebrow that meets across the forehead. It uses moist mountain-forest canopy and edges, feeding on insects and small berries.
The upperparts are mostly olive and the crown bluish grey. A narrow pale eyebrow joins across the forehead, and the wing and tail feathers have yellow edges.
It uses moist forest canopy and sometimes edges on lower mountain slopes. It moves actively, often in mixed-species flocks, and eats insects and small berries.
An extinction-risk assessment has not been added yet.