On-Time Report

Airports › Miami (MIA) › July 2025

Airport month · July 2025

Miami International in July 2025

63.6%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 July 2025, reporting carriers scheduled 9,079 domestic departures from Miami International (MIA). 63.6% left less than 15 minutes late and 61.6% reached their destination on time; 2.6% were cancelled.

Nationally that month, 69.7% of flights departed on time and 69.0% arrived on time, so MIA departures were 6.1 points below the national departure figure.

A year earlier, in July 2024, the airport had 8,733 departures with 62.8% leaving on time: a change of +0.8 points, with flights up 4%.

Flights arriving at MIA that month were on time 66.1% of the time (9,075 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 44%, air carrier 27% and national aviation system 22%.

Every scheduled departure from MIA in July 2025, judged by arrival at the destination.

July 2025 against a year earlier, the airport's year and the nation

MeasureJul 2025Jul 2024MIA, 12 months to Jul 2026All reported flights, Jul 2025
Departed on time63.6%62.8%72.9%69.7%
Arrived on time61.6%62.7%72.3%69.0%
Cancelled2.6%2.1%1.6%2.5%
Average departure delay (late minutes only)30.6 min32.4 min19.7 min24.3 min
Scheduled departures a day30329130521,048
Scheduled departures9,0798,733111,186631,428

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
AA American Airlines5,39059%57.0%30.5 min3.0%
MQ Envoy Air93410%76.1%3.3 min0.4%
DL Delta Air Lines93010%61.4%25.9 min3.3%
UA United Airlines5066%67.4%13.7 min2.0%
WN Southwest Airlines4265%71.4%15.3 min1.4%
F9 Frontier Airlines3344%73.4%8.9 min2.1%
NK Spirit Airlines3324%64.5%20.8 min2.7%
YX Republic Airline1422%61.3%18.6 min0.0%
B6 JetBlue Airways541%55.6%24.1 min9.3%
AS Alaska Airlines310%51.6%22.1 min3.2%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
MIA–ATLMiami to Atlanta51960.5%29.9 min1.5%
MIA–LGAMiami to New York48052.1%31.6 min8.3%
MIA–DFWMiami to Dallas/Fort Worth41258.7%28.4 min2.9%
MIA–JFKMiami to New York39758.4%37.7 min6.8%
MIA–ORDMiami to Chicago33754.9%27.1 min2.1%
MIA–DCAMiami to Washington33453.0%33.7 min7.8%
MIA–IAHMiami to Houston31166.6%18.5 min2.3%
MIA–CLTMiami to Charlotte31062.9%23.7 min2.6%
MIA–MCOMiami to Orlando30950.8%37.2 min1.3%
MIA–EWRMiami to Newark30355.8%33.7 min6.6%
MIA–BOSMiami to Boston30257.0%25.5 min4.6%
MIA–LAXMiami to Los Angeles27764.3%25.8 min0.4%

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), July 2025.

Delay causes

BTS cause categoryShare of delay minutesNational, Jul 2025Minutes
Air carrier27.2%31.1%73,269
Late-arriving aircraft44.0%40.8%118,262
National Aviation System22.0%20.7%59,233
Extreme weather6.6%7.3%17,830
Security0.1%0.1%378
268,972 delay minutes on 3,195 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← June 2025August 2025 →

Questions and answers

How many flights left MIA on time in July 2025?

63.6% of 9,079 scheduled domestic departures left less than 15 minutes late, and 61.6% reached their destination on time. The national figures that month were 69.7% and 69.0%.

How does that compare with a year earlier?

In July 2024, 62.8% of 8,733 departures left on time and 2.1% were cancelled, against 63.6% and 2.6% in July 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for July 2025; 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.