Definition
A set of regulations under which a pilot operates an aircraft in weather conditions clear enough that the pilot can see where they are going and remain clear of clouds, terrain, and other aircraft by visual reference outside the cockpit. VFR also refers informally to the weather conditions that meet or exceed the minimum visibility and cloud-clearance requirements for such flight.
Plain English
Rules for flying when the weather is good enough to see outside and navigate by looking out the window. The pilot is responsible for spotting other aircraft, the ground, and clouds, and staying away from them.
Context Anchor
You will see VFR in weather reports, flight plans, radio calls, regulations, and training discussions about whether a flight can be made by looking outside.
Derivation
From 'visual' (seeing with the eyes) and 'flight rules' (the regulations governing how an aircraft is flown). The name reflects the core idea: the pilot navigates and avoids hazards by what they can see, not by instruments alone.
Why Pilots Care
Determines whether a pilot may legally fly without an instrument rating and affects route choices, airspace access, and required equipment.
Intuition Check
Do not read VFR as simply meaning “good weather.” VFR is a set of flight rules, and the weather must meet minimum conditions before those rules can be used.
Example Sentence 1
The forecast showed VFR conditions all day, so she filed a VFR flight plan and departed for the coast.
Example Sentence 2
With good visibility reported, we operated the entire flight under VFR.