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Airfare inflation is the new used car inflation

Data: Bureau of Labor Statistics; Chart: Axios Visuals

The latest inflation data included a number that was shocking, though not exactly surprising to anyone who has been booking their summer travel lately: Airfares rose 18.6% in April, the most on record for a single month, which accounted for about a quarter of the overall surge in core inflation last month.

Why it matters: A challenge with interpreting inflation data is determining what to "look through" as a mere one-time adjustment and when to show more alarm. The experience of the last year shows the risks of being too willing to brush off high inflation just because one or two categories are disproportionately responsible.


  • It would be a mistake to brush off the elevated April inflation just because so much of it was due to one sector facing unique issues, as many commentators did this time a year ago when used car prices spiked.

State of play: The causes of surging airfare are straightforward. Jet fuel prices have been rising, leading airlines to raise their prices. There are pilot and other staffing shortages, constraining the operators' ability to add more routes.

  • Moreover, financially flush consumers are ready to spend whatever it takes to book their vacations and business travel.
  • Limited supply plus strong demand = booming prices.

It's hard to imagine that airfares will keep rising at the insanely high rate they did in April. In that sense, their role in April's high inflation reading was the definition of "transitory."

Yes, but: The problem with the current inflationary moment is not that some prices are rising for idiosyncratic reasons. It's that inflation has become s0 broad-based that the markets with idiosyncratic issues — like April airfares, or used car prices last spring — drag inflation up from already-high levels.

  • And over time, you would expect these weird shocks to be symmetrical, with deflationary surprises that offset inflationary surprises. But the nature of our current economy is that the surprises all are cutting in the same direction.

In other words, the problem is not just that airfare prices rose by 19%. The issue is that airfare prices rose a lot on top of lots of other things rising by an uncomfortably high 0.4% or 0.5% — and no prices falling by double-digits.

The bottom line: Just because we can explain why airfares spiked so much in April doesn't mean it isn't telling us something about the broader inflationary forces at play in the economy.

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