B4UFLY

A free downloadable application, which allows operators to check airspace and local advisories before flying.

Source: FAA Pilot/Controller Glossary (definition from the 2023 edition; current: Change 1 of 7 August 2025).

Reference: <a href='https://www.faa.gov/uas/getting_started/b4ufly' target='_blank'>B4UFLY App</a>.

Glossary last updated 2026-10-28.