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Most delayed airlines at Miami International Airport (MIA)

  • Jaromir Chalabala // Shutterstock
    1/ Jaromir Chalabala // Shutterstock

    Most delayed airlines at Miami International Airport (MIA)

    Winter weather is one of the most reliable heralds of flight delays. And Avery, the first winter storm of 2018, was no exception. The storm contributed to 2,558 cancellations and 8,215 flight delays on its first day, with lingering effects on subsequent days. Weather is one cause of flight delays categorized by the U.S. Department of Transportation's Bureau of Transportation Statistics, part of a broader set of conditions known as the National Aviation System. The system also includes airport operations, heavy traffic volume, and air traffic control. Extreme weather is in its own category and covers real and forecasted blizzards, tornadoes, and hurricanes.

    Delays also are caused by air carriers and include problems with maintenance and crews, baggage loading, fueling, and aircraft cleaning. Security and safety issues that many people complain about—waiting in security lines for more than 29 minutes, broken equipment, and evacuation of aircraft—are others. Late-arriving aircraft scheduled for a trip later is the last type of delay the government tracks.

    Some flights have more problems than others, and Stacker analyzed data from the Bureau of Transportation Statistics to determine which flights out of your city’s airport have the worst records. Stacker ranked airlines by overall on-time performance for all arriving flights in August 2018. Also included is the total number of the airlines’ flights out of the airport and their overall on-time percentage.

    Flying out of MIA sometime soon? Take a look at the list to see if it’s likely that your trip will go as scheduled or that you’ll spend more time in the terminal than you had planned before heading to your destination.

    ALSO: Most popular U.S. flights out of Miami International

  • TDelCoro // Flickr
    2/ TDelCoro // Flickr

    #6. United Air Lines Inc.

    Total flights (August 2018): 325
    On-time performance: 73.2%
    Air carrier delay: 7.9%
    Weather delay: 2%
    National Aviation System delay: 7.5%
    Security delay: 0%
    Aircraft arriving late delay: 9.4%

  • Eric Salard // Wikimedia Commons
    3/ Eric Salard // Wikimedia Commons

    #5. American Airlines Inc.

    Total flights (August 2018): 4,203
    On-time performance: 77%
    Air carrier delay: 7.4%
    Weather delay: 1.3%
    National Aviation System delay: 6.7%
    Security delay: 0%
    Aircraft arriving late delay: 7.6%

  • airlines470 // flickr
    4/ airlines470 // flickr

    #4. Delta Air Lines Inc.

    Total flights (August 2018): 789
    On-time performance: 81.7%
    Air carrier delay: 5.8%
    Weather delay: 1.1%
    National Aviation System delay: 6%
    Security delay: 0.1%
    Aircraft arriving late delay: 5.2%

  • Eddie Maloney // Wikimedia Commons
    5/ Eddie Maloney // Wikimedia Commons

    #3. Frontier Airlines Inc.

    Total flights (August 2018): 62
    On-time performance: 61.3%
    Air carrier delay: 20.6%
    Weather delay: 0%
    National Aviation System delay: 4.4%
    Security delay: 0%
    Aircraft arriving late delay: 13.7%

  • Sla2931 // Wikimedia Commons
    6/ Sla2931 // Wikimedia Commons

    #2. Envoy Air

    Total flights (August 2018): 990
    On-time performance: 80.9%
    Air carrier delay: 5.8%
    Weather delay: 0.8%
    National Aviation System delay: 4.8%
    Security delay: 0%
    Aircraft arriving late delay: 7.7%

  • Hawkeye UK // flickr
    7/ Hawkeye UK // flickr

    #1. Republic Airline

    Total flights (August 2018): 905
    On-time performance: 86.6%
    Air carrier delay: 2.6%
    Weather delay: 0.9%
    National Aviation System delay: 3.3%
    Security delay: 0%
    Aircraft arriving late delay: 6.5%

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