On-Time Report

Airports › Miami (MIA) › April 2026

Airport month · April 2026

Miami International in April 2026

76.5%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 April 2026, reporting carriers scheduled 9,556 domestic departures from Miami International (MIA). 76.5% left less than 15 minutes late and 74.8% reached their destination on time; 0.3% were cancelled.

Nationally that month, 79.1% of flights departed on time and 78.9% arrived on time, so MIA departures were 2.6 points below the national departure figure.

A year earlier, in April 2025, the airport had 9,878 departures with 76.7% leaving on time: a change of −0.2 points, with flights down 3%.

Flights arriving at MIA that month were on time 80.9% of the time (9,552 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 45%, air carrier 32% and national aviation system 21%.

Every scheduled departure from MIA in April 2026, judged by arrival at the destination.

April 2026 against a year earlier, the airport's year and the nation

MeasureApr 2026Apr 2025MIA, 12 months to Jul 2026All reported flights, Apr 2026
Departed on time76.5%76.7%72.9%79.1%
Arrived on time74.8%76.3%72.3%78.9%
Cancelled0.3%0.8%1.6%0.9%
Average departure delay (late minutes only)16.0 min17.6 min19.7 min14.5 min
Scheduled departures a day31932930519,931
Scheduled departures9,5569,878111,186597,919

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
AA American Airlines5,40557%72.5%10.0 min0.1%
MQ Envoy Air1,10712%86.4%-3.9 min0.0%
DL Delta Air Lines1,06711%75.0%9.0 min0.6%
UA United Airlines6016%84.9%-2.1 min0.2%
WN Southwest Airlines4975%71.8%9.5 min0.2%
F9 Frontier Airlines4284%73.8%11.8 min0.7%
NK Spirit Airlines3424%60.2%22.4 min2.9%
YX Republic Airline581%69.0%14.6 min0.0%
AS Alaska Airlines511%74.5%1.7 min2.0%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
MIA–ATLMiami to Atlanta57276.0%5.3 min0.2%
MIA–LGAMiami to New York51668.4%15.1 min0.8%
MIA–JFKMiami to New York40871.6%11.4 min0.2%
MIA–ORDMiami to Chicago40073.3%8.8 min1.8%
MIA–DFWMiami to Dallas/Fort Worth37870.1%14.5 min0.8%
MIA–EWRMiami to Newark35580.3%3.2 min0.0%
MIA–BOSMiami to Boston33368.8%14.8 min0.3%
MIA–DCAMiami to Washington32980.5%4.2 min0.0%
MIA–CLTMiami to Charlotte31179.1%3.1 min0.0%
MIA–IAHMiami to Houston31077.4%7.5 min1.0%
MIA–PHLMiami to Philadelphia29875.8%14.2 min0.0%
MIA–MCOMiami to Orlando29374.1%11.4 min0.0%

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), April 2026.

Delay causes

BTS cause categoryShare of delay minutesNational, Apr 2026Minutes
Air carrier31.9%33.5%46,138
Late-arriving aircraft44.7%40.4%64,637
National Aviation System21.2%21.0%30,703
Extreme weather2.0%5.0%2,903
Security0.2%0.1%350
144,731 delay minutes on 2,342 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← March 2026May 2026 →

Questions and answers

How many flights left MIA on time in April 2026?

76.5% of 9,556 scheduled domestic departures left less than 15 minutes late, and 74.8% reached their destination on time. The national figures that month were 79.1% and 78.9%.

How does that compare with a year earlier?

In April 2025, 76.7% of 9,878 departures left on time and 0.8% were cancelled, against 76.5% and 0.3% in April 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2026; 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.