en-route chart

So with these you will get the corresponding low altitude paper en-route charts for navigating between airports.

Extract from a low altitude En-Route chart.

En-route charts are divided into high and low versions, with information on airways and navaids for high- and low-altitude flight, respectively.

In aviation, an en-route chart is an aeronautical chart that guides pilots flying under instrument flight rules (IFR) during the en-route phase of flight.

The two pilots had studied the flight plan and the en-route chart, and, with fifty minutes to go, the flight engineer handed over his documents to the captain, who signed the log and formally accepted control of the aircraft.