The primary benefit of agile methodologies in software development is enhanced flexibility and responsiveness to change. Agile promotes iterative progress through short development cycles, known as sprints, allowing teams to adapt quickly to evolving requirements and feedback. This approach fosters collaboration among cross-functional teams, ensuring that stakeholders remain engaged throughout the project. As a result, software can be released incrementally, enabling timely delivery of features and improvements, reducing the risk of costly redesigns, and ultimately leading to higher customer satisfaction.