1.   A revenue passenger mile is one paying passenger flown one mile.

2.   A revenue passenger mile is a key measure of airline business, based on one passenger flying one mile.

3.   A revenue passenger mile represents a paying passenger flown one mile.

4.   A revenue passenger mile represents one paying passenger flown one mile.

5.   Revenue rose in the latest quarter, but passenger traffic, measured in revenue passenger miles flown, fell slightly.

6.   Revenue passenger miles are the number of miles flown by paying passengers.