Definition
A unit of measurement used in air transportation representing one paying passenger carried one mile. Total passenger miles for a flight or operation are calculated by multiplying the number of revenue passengers by the distance flown.
Plain English
It is a way airlines measure how much flying they have done for paying passengers. One person flown one mile equals one passenger mile. Ten people flown 100 miles equals 1,000 passenger miles.
Context Anchor
Seen in airline, charter, and aviation business reports that measure how much passenger traffic an operation carried.
Why Pilots Care
It quantifies passenger traffic volume, which directly influences scheduling, fuel planning, and airline profitability decisions that affect crew assignments.
Intuition Check
Do not read passenger mile as the distance one passenger personally travels on foot. In aviation reporting, it is a counting unit: passengers multiplied by miles flown.
Example Sentence 1
The airline reported a record number of passenger miles for the quarter, reflecting both higher load factors and longer average flight distances.
Example Sentence 2
Load factor is found by dividing revenue passenger miles by available seat miles.