According to the U.S. Bureau of Labor Statistics, prices for airline fares were 14.21% lower in 2020 versus 2018 (a $14.21 difference in value).

**Between 2018 and 2020:** Airfare experienced an average inflation rate of -7.38% per year.
This rate of change indicates significant deflation.
In other words, airfare costing $100 in the year 2018 would cost $85.79 in 2020 for an equivalent purchase.
Compared to the overall inflation rate of 1.28% during this same period, inflation for airfare was
significantly lower.

Raw Consumer Price Index data from U.S. Bureau of Labor Statistics for *Airline fares*:

Year |
2018 | 2019 | 2020 |

CPI |
264.909 | 265.401 | 227.252 |

Hospital services · Film and photographic supplies · Atlanta, Georgia · Philadelphia, Pennsylvania ·

Below are calculations of equivalent buying power for Airfare, over time, for $100 beginning in 2018. Each of the amounts below is equivalent in terms of what it could buy at the time:

Year | USD Value | Inflation Rate |
---|---|---|

2018 | $100.00 | - |

2019 | $100.19 | 0.19% |

2020 | $85.79 | -14.37%* |

CPI in 2020 / CPI in 2018 * 2018 USD value = 2020 USD value

Then plug in historical CPI values from above. The CPI for Airline fares was 264.909 in the year 2018 and 227.252 in 2020:

227.252 / 264.909 * $100 =

Therefore, according to U.S. Bureau of Labor Statistics, $100 in 2018 has the same "purchasing power" as $85.79 in 2020 (in the CPI category of Airline fares).