This study investigates student teachers' active learning experiences in teacher education (TE) in Finnish and Turkish contexts and attempts to determine how active learning methods' impact student teachers' professional competences. Student teachers (N = 728) assessed their active learning experiences and the professional competences they achieved during TE. Self-regulated and collaborative learning provided the theoretical framework for the active learning measurements. The professional competences included a wide range of teacher responsibilities in schools and society. The data were collected by a survey. A quantitative analysis utilising a regression analysis approach provided strong evidence that active learning has an impact on professional competences. A qualitative analysis further revealed that active knowledge creation with high engagement in learning tasks and a collaborative learning culture were important modes of active learning. While the study focused on two different TE systems, active learning was important in student teachers' professional development in both contexts.