On-Time Report

Airports › Miami (MIA) › August 2024

Airport month · August 2024

Miami International in August 2024

60.1%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In August 2024, reporting carriers scheduled 8,459 domestic departures from Miami International (MIA). 60.1% left less than 15 minutes late and 59.8% reached their destination on time; 4.1% were cancelled.

Nationally that month, 75.4% of flights departed on time and 74.7% arrived on time, so MIA departures were 15.3 points below the national departure figure.

A year earlier, in August 2023, the airport had 8,505 departures with 69.2% leaving on time: a change of −9.1 points, with flights down 1%.

Flights arriving at MIA that month were on time 65.8% of the time (8,455 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 43%, air carrier 25% and national aviation system 17%.

Every scheduled departure from MIA in August 2024, judged by arrival at the destination.

August 2024 against a year earlier, the airport's year and the nation

MeasureAug 2024Aug 2023MIA, 12 months to Jul 2026All reported flights, Aug 2024
Departed on time60.1%69.2%72.9%75.4%
Arrived on time59.8%68.1%72.3%74.7%
Cancelled4.1%1.7%1.6%2.1%
Average departure delay (late minutes only)32.6 min26.7 min19.7 min18.4 min
Scheduled departures a day28228430520,634
Scheduled departures8,4598,505111,186619,025

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
AA American Airlines4,82657%55.4%30.5 min4.4%
MQ Envoy Air1,08513%68.1%11.9 min3.7%
DL Delta Air Lines89311%67.1%19.2 min2.8%
NK Spirit Airlines4625%67.1%14.2 min4.5%
UA United Airlines3774%65.5%21.0 min3.7%
WN Southwest Airlines3684%64.1%17.6 min3.0%
F9 Frontier Airlines2963%55.7%29.8 min6.1%
B6 JetBlue Airways931%44.1%70.2 min5.4%
AS Alaska Airlines310%71.0%7.8 min3.2%
YX Republic Airline280%75.0%-0.5 min7.1%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
MIA–ATLMiami to Atlanta51463.6%20.2 min3.3%
MIA–LGAMiami to New York45450.7%33.6 min7.7%
MIA–DFWMiami to Dallas/Fort Worth43659.2%26.8 min1.4%
MIA–JFKMiami to New York43057.0%32.8 min6.0%
MIA–ORDMiami to Chicago33761.7%24.0 min2.4%
MIA–DCAMiami to Washington33057.3%24.0 min4.8%
MIA–MCOMiami to Orlando31454.1%34.9 min4.5%
MIA–BOSMiami to Boston29456.5%24.5 min3.1%
MIA–IAHMiami to Houston29366.9%17.5 min2.7%
MIA–CLTMiami to Charlotte28456.0%31.9 min4.9%
MIA–EWRMiami to Newark27859.4%31.1 min8.6%
MIA–SJUMiami to San Juan27865.5%23.6 min1.4%

By scheduled departure hour

On-time share:under 62%6270768288% and over
Share of departures that left less than 15 minutes late, by scheduled hour (local time), August 2024.

Delay causes

BTS cause categoryShare of delay minutesNational, Aug 2024Minutes
Air carrier25.1%33.8%63,299
Late-arriving aircraft43.0%39.8%108,510
National Aviation System16.8%20.4%42,388
Extreme weather14.9%5.9%37,674
Security0.1%0.1%337
252,208 delay minutes on 3,025 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← July 2024September 2024 →

Questions and answers

How many flights left MIA on time in August 2024?

60.1% of 8,459 scheduled domestic departures left less than 15 minutes late, and 59.8% reached their destination on time. The national figures that month were 75.4% and 74.7%.

How does that compare with a year earlier?

In August 2023, 69.2% of 8,505 departures left on time and 1.7% were cancelled, against 60.1% and 4.1% in August 2024.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for August 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for MIA · methodology · corrections.