Chart assignment
Charts to read and discuss
Read each chart, then answer its questions. Every chart shows its source and date; open it for a table of the numbers and the data to download.
Chart 1 of 1 · Air travel
Which months have the most cancelled flights?
The interactive chart needs JavaScript. The numbers are on the chart's page.
In the 12 months from September 2025 to August 2026, U.S. airlines cancelled the largest share of scheduled flights in January 2026, 4.7%, and the smallest in September 2025, 0.5%. In November 2025 the government shutdown led the FAA to order flight cuts. Each bar is one month, not an average over many years.
Questions to discuss
- In one sentence of your own, what does this chart show?
- Find the biggest change or difference in the chart. What might explain it?
- Who collected these numbers, and how recent are they? What else would you want to know before drawing a conclusion?
Source: U.S. Bureau of Transportation Statistics, Airline On-Time Performance (Reporting Carrier On-Time Performance, 1987–present) (Public domain (U.S. government work)) · Data as of Aug 31, 2026
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