A student pilot cannot fly solo beyond what distance if their pilot certificate is not endorsed for solo cross-country flights?

A student pilot who has not received an endorsement for solo cross-country flights is limited to flying solo only within a specific distance from their solo airport. According to regulations, this distance is a maximum of 25 nautical miles. This rule is established to ensure safety and limit the solo flight responsibilities of student pilots, allowing them to gain experience while remaining close to a familiar airport environment.

Flying solo beyond this distance would require additional training and a specific endorsement from a flight instructor, as it poses a higher risk and involves navigating away from the immediate safety net of the training airport. Other options suggest distances that are outside of this regulatory framework, meaning that a student pilot without the appropriate endorsements must adhere to the 25 nautical mile limit for solo flights.