Which airlines have the most delayed flights?

From August 2025 to July 2026, JetBlue had the most late flights: 27.7% arrived 15 or more minutes late, against 18.1% for Hawaiian Airlines and 22.4% for all 7 million flights. 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.

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Key facts

Measure: % of flights arriving 15+ minutes late. Written from the data below.

  • JetBlue has the highest figure, 27.7%, followed by Spirit Airlines (27.2%) and Frontier Airlines (26.9%).
  • Hawaiian Airlines has the lowest figure, 18.1%, followed by Delta Air Lines (18.5%) and Envoy Air (19.1%).
  • The highest is 1.5 times the lowest.

Source and date

Source
U.S. Bureau of Transportation Statistics, Airline On-Time Performance (Reporting Carrier On-Time Performance, 1987–present)
License
Public domain (U.S. government work)
Data as of
Published

Citation

Chartly. “Which airlines have the most delayed flights?” Chart. Data: U.S. Bureau of Transportation Statistics, Airline On-Time Performance (Reporting Carrier On-Time Performance, 1987–present), https://www.transtats.bts.gov/DL_SelectFields.aspx?gnoyr_VQ=FGJ&QO_fu146_anzr=b0-gvzr (data as of July 31, 2026). https://chart.ly/charts/airline-delays (accessed October 15, 2026).

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The data

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The file has the numbers in this table, with the source, license and date. Please credit the source and Chartly.

Airline % of flights arriving 15+ minutes late
JetBlue 27.7
Spirit Airlines 27.2
Frontier Airlines 26.9
Allegiant Air 25.9
PSA Airlines 25.9
American Airlines 25.4
Southwest Airlines 23.6
Republic Airways 21.3
SkyWest Airlines 21
United Airlines 20.7
Alaska Airlines 20.4
Envoy Air 19.1
Delta Air Lines 18.5
Hawaiian Airlines 18.1

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