What does an LF/MF airway connect?

An LF/MF airway, which stands for Low Frequency/Medium Frequency airway, connects two Non-Directional Beacons (NDBs). These airways are established for aircraft navigation and are typically used at lower altitudes, providing guidance to pilots flying in less congested airspace.

NDBs are radio transmitters that emit signals allowing aircraft to determine their position relative to the beacon. When a flight is navigating a LF/MF airway, it does so by following the course set between two of these NDBs, which are vital for maintaining aircraft orientation and ensuring safe passage across various routes.

Other options such as connecting two VORs or waypoints, or solely linking to airports, do not accurately reflect the specific purpose of LF/MF airways, which are inherently tied to NDBs for navigation along those specified routes.