Halilağa is a village in Çan District, in Çanakkale Province, Türkiye. Halilağa lies at 305 m above sea level, 0.7 km from the Mount Ida (Turkey) mountains. It has 226 inhabitants. The nearest city is Çan, 19.3 km to the northeast. Among the landmarks around are Troy (53 km), Scepsis (18.9 km) and Gergis (22 km).