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 airlines have the most delayed flights?
The interactive chart needs JavaScript. The numbers are on the chart's page.
In the 12 months through August 2026, JetBlue had the most late flights: 28.7% arrived 15 or more minutes late, against 18.9% for Delta Air Lines, the fewest. PSA, Envoy, Republic and SkyWest are regional airlines that fly under bigger airlines' names, such as American Eagle or United Express. Only the largest U.S. airlines report these numbers, for domestic flights.
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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