As real income per person rose over three and a half decades, flights per person rose by about two-thirds, and the two moved together over the long run.
What this shows: The chart covers 1990 Q1 to 2025 Q3. It plots Income per capita ($) and Passengers per capita on a vertical axis of Index. Latest values: Income per capita ($) 52,619; Passengers per capita 0.8432. Data run through 2025 Q3.