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Report: These U.S. airlines had the most delayed flights in 2025
One of them is JetBlue.
Delays are often a part of air travel, but some U.S. airlines are delaying travelers more than others, according to a new report.
The flight tracking app Flighty released its 2025 Global Passport Report, which includes a list of the five most delayed airlines in the U.S. in 2025. Frontier was the worst offender, followed by JetBlue and Southwest. JetBlue is a leading carrier at Logan International Airport.
The report analyzed data from more than 22 million flights between January and November. A flight is considered late when it lands more than 15 minutes behind schedule, according to Flighty.
These are the five most delayed U.S. airlines, along with the percentage of their flights that arrived late, according to the study:
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Frontier: 28%
JetBlue: 25%
Southwest: 25%
American: 24%
Alaska: 23%
The industry standard for the percentage of flights delayed more than 15 minutes is 22%, according to the report. And, globally, 41% of flights arrive at least one minute late and the average delay is 23 minutes. In fact, passengers in 2025 lost 3.9 million hours between scheduled arrival times and actual arrival times, noted Flighty.
Carriers included in the study had to have a minimum of 150,000 flights per year among Flighty’s users.
The most delayed airline globally was Ryanair, according to the report, with 29% of flights delayed.
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