Which airlines are usually on time?

Major airline on-time performance for 2022
  • Delta Air Lines (including regional partners) – 82.1% of flights on time.
  • Alaska Airlines (including regional partners) – 79.1% of flights on time.
  • United Airlines (including regional partners) – 78.7% of flights on time.




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#1 Delta Airlines - The US' Most Reliable Airline Although Delta scored top overall, the airline is steadily in the middle of the pack for mishandled bags. They also rank among the worst for denied boarding, but the percentages are very small - 0.05% in 2022 and 0.07% in 2023.

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The overall reliability score for U.S. airlines are as follows:
  • Hawaiian Airlines 5.0.
  • Delta 3.9.
  • Alaska 3.3.
  • Southwest 3.2.
  • United 3.0.
  • American 2.8.
  • Frontier 2.8.
  • Spirit 2.6.


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JetBlue holds the dubious distinction of being at the top of the rankings for most delayed flights right now.

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In an ordinary year, around 20% of flights fail to depart on time, owing to a variety of logistical mishaps and punctuality defeaters such as bad weather, air traffic issues, mechanical problems, and staffing shortages.

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The least punctual airline of all U.S. carriers was Frontier which had an average on-time arrival of 73.14 percent. Coming in just above that was JetBlue with an on-time arrival of 73.5 percent. At the very top of the list, with the most on-time arrivals was Hawaiian with 87.72 percent.

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Frontier Airlines has had the worst on-time arrival performance so far in 2023. Just 65.41% of Frontier flights arrived on time from January through April 2023.

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In the first four months of 2023, only 76.58% of U.S. flights arrived on time, according to Bureau of Transportation Statistics data. The most common cause of delays in that period was the inbound aircraft arriving late, affecting 7.6% of all flights.

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Air Traffic Air and ground congestion are a major factor why flights get delayed. If a scheduled flight pushes back from the gate late, that flight could impact the departure of other flights, such as the next flight scheduled to arrive at the gate occupied by the late flight departure.

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In 2022 year, Frontier Airlines reported 20.26 customer complaints for each 100,000 enplanements on domestic-scheduled operations. This was the highest rate of customer complaints among U.S. carriers.

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Spirit. Like Frontier, Spirit has the skinniest rows of any American airline, with a seat pitch of 28 inches — and they don't recline. Spirit lagged at 8 out of 10 American airlines studied in the in The Points Guys' 2021 report.

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According to data from the Bureau of Transportation Statistics (which currently only has numbers through May), 20.8 percent of flights were delayed so far in 2023, compared to 18.8 percent in 2019.

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