Airport · MIA · Miami, Florida

Miami, FL

Miami, FL posts bottom-quartile on-time performance among the 382 tracked U.S. airports, as one of the busiest U.S. airports. According to the U.S. DOT Bureau of Transportation Statistics, drawn from 1,160,127 flights (2020–2025); its biggest delay driver is late aircraft.

Compiled by PlainFlights Editorial, Flight Performance Editorial Team

Data updated 2026-06-13

77.9%
On-time: Top 92%
on-time, US airports: 79 min
Delay when late: 1.02%
Cancelled

Key Performance Metrics

Total Flights

1,160,127

Best Month

Oct 91.4%

Worst Month

Jun 84.7%

Delayed

256,336

Cancelled

11,802

60-65%

1
65-70%

4
70-75%

9
75-80%

48
80-85%

192
85-90%

116
90-95%

12

What this shows MIA is marked in the 75-80% band.

Delay Cause Breakdown

Top delay cause: Late Aircraft. Total delay minutes: 9,945,580.

Late Aircraft 37.5% (3,730,662 min)

Carrier 35.8% (3,562,069 min)

NAS (National Aviation System) 20.4% (2,031,633 min)

Weather 5.9% (588,743 min)

Security 0.3% (32,473 min)

Seasonal Performance Patterns

Monthly averages across all years of data. Best month: October (91.4% on-time). Most delays: June (84.7% on-time).

Month	Avg Flights	Avg Delayed	Avg Cancelled	On-Time %
December	17,980	4,096	92	88.5%
November	16,340	2,974	63	90.5%
October	14,823	2,452	83	91.4%
September	13,442	2,633	90	89.8%
August	15,212	3,942	153	86.3%
July	16,120	4,507	159	85.1%
June	15,069	4,312	244	84.7%
May	15,701	3,498	83	88.1%
April	16,199	3,397	379	88.7%
March	18,588	3,948	329	88.9%
February	16,303	3,232	111	89.8%
January	17,577	3,732	182	89.3%

Year-Over-Year Performance

Annual flight volume and on-time trends at MIA.

Year	Flights	Delayed	Cancelled	On-Time %
2025	223,840	27,939	1,419	87.5%
2024	219,867	29,370	1,878	86.6%
2023	205,066	26,311	1,064	87.2%
2022	213,711	26,359	2,985	87.7%
2021	184,045	19,014	1,303	89.7%
2020	113,598	5,206	3,153	95.4%

Cancellation & Diversion Analysis

Flight disruption statistics for Miami, FL.

Cancellation Rate

1.02%

11,802 of 1,160,127 flights

Diversion Rate

0.14%

1,594 of 1,160,127 flights

Delay Rate

22.1%

256,336 of 1,160,127 flights

Monthly Performance

Recent 24 months of flight data.

Period	Flights	Dep Delayed	Arr Delayed	Cancelled	Diverted
Dec 2025	20,221	2,558	2,464	116	32
Nov 2025	18,542	2,054	1,923	181	19
Oct 2025	16,924	1,738	1,638	31	20
Sep 2025	15,137	1,684	1,381	27	23
Aug 2025	17,456	2,722	2,411	75	25
Jul 2025	18,154	3,080	2,775	236	57
Jun 2025	17,666	2,590	2,433	145	43
May 2025	18,880	2,342	2,187	85	39
Apr 2025	19,767	2,227	1,902	77	26
Mar 2025	21,832	2,667	2,333	140	32
Feb 2025	18,895	2,065	1,951	90	32
Jan 2025	20,366	2,212	2,164	216	27
Dec 2024	19,894	2,578	2,409	46	34
Nov 2024	17,953	1,440	1,100	11	18
Oct 2024	16,607	1,218	1,052	156	12
Sep 2024	15,194	1,333	1,157	63	11
Aug 2024	16,914	3,030	2,430	351	27
Jul 2024	17,465	3,064	2,561	183	40
Jun 2024	17,095	3,057	2,395	392	41
May 2024	19,002	3,068	2,579	91	48
Apr 2024	19,176	2,135	1,750	77	29
Mar 2024	21,057	3,273	2,966	226	24
Feb 2024	19,086	2,085	1,752	24	15
Jan 2024	20,424	3,089	3,059	258	45

Top Routes from MIA

Busiest routes to and from Miami, FL.

Route	Flights	On-Time	Distance
ATL (Atlanta) → MIA (Miami)	37,418	76.7%	594 mi
MIA (Miami) → ATL (Atlanta)	37,400	76.9%	594 mi
MIA (Miami) → JFK (New York)	30,548	73.1%	1,089 mi
JFK (New York) → MIA (Miami)	30,546	75.6%	1,089 mi
LGA (New York) → MIA (Miami)	30,353	76.9%	1,096 mi
MIA (Miami) → LGA (New York)	30,316	75.4%	1,096 mi
EWR (Newark) → MIA (Miami)	24,775	74.8%	1,085 mi
MIA (Miami) → EWR (Newark)	24,774	73.3%	1,085 mi
DFW (Dallas/Fort Worth) → MIA (Miami)	24,505	73.3%	1,121 mi
MIA (Miami) → DFW (Dallas/Fort Worth)	24,449	74.3%	1,121 mi
MIA (Miami) → ORD (Chicago)	23,556	78.9%	1,197 mi
ORD (Chicago) → MIA (Miami)	23,554	78.6%	1,197 mi
MIA (Miami) → BOS (Boston)	20,561	74.7%	1,258 mi
BOS (Boston) → MIA (Miami)	20,541	79.4%	1,258 mi
MIA (Miami) → MCO (Orlando)	19,927	76.2%	192 mi
MCO (Orlando) → MIA (Miami)	19,909	78.8%	192 mi
MIA (Miami) → DCA (Washington)	18,953	77.5%	919 mi
DCA (Washington) → MIA (Miami)	18,948	79.4%	919 mi
MIA (Miami) → CLT (Charlotte)	18,889	78.9%	650 mi
CLT (Charlotte) → MIA (Miami)	18,884	77.7%	650 mi

Airports With a Similar On-Time Rate

Other U.S. airports nationwide whose on-time rate is closest to Miami, FL's 77.9%.

Islip, NY

77.9% on-time 54,300 flights

Las Vegas, NV

78% on-time 1,986,833 flights

Baltimore, MD

78% on-time 1,049,006 flights

Eagle, CO

78% on-time 37,271 flights

Newark, NJ

78.1% on-time 1,354,054 flights

Flint, MI

78.1% on-time 31,426 flights

Other Airports in Florida

Compare performance with other Florida airports.

MCO 76.7%

Orlando, FL

Orlando · 1,718,833 flights

FLL 76.4%

Fort Lauderdale, FL

Fort Lauderdale · 1,010,982 flights

TPA 79.8%

Tampa, FL

Tampa · 860,941 flights

RSW 80.9%

Fort Myers, FL

Fort Myers · 420,518 flights

JAX 80.4%

Jacksonville, FL

Jacksonville · 316,106 flights

PBI 76.9%

West Palm Beach/Palm Beach, FL

West Palm Beach/Palm Beach · 302,058 flights

SRQ 79.5%

Sarasota/Bradenton, FL

Sarasota/Bradenton · 177,587 flights

PNS 81.4%

Pensacola, FL

Pensacola · 143,115 flights

Keep exploring

More flight data around Miami, FL.

Florida flight data

Statewide on-time and delay aggregates, plus every reporting airport in Florida.

View FL data →

Airport rankings

See where MIA sits among U.S. airports on on-time rate and average delay.

Best on-time airports →

Compare airports

Put MIA head-to-head with another airport on delays and reliability.

Open comparison tool →

What the Data Says About MIA

Miami, FL in Miami, Florida handled 1,160,127 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 77.9% on-time departure rate. Of those flights, 256,336 experienced delays, 11,802 were cancelled, and 1,594 were diverted. The cancellation rate works out to 1.02%, the diversion rate to 0.14%, and the average delay when departures run late is 78.6 minutes. These figures are the baseline for comparing MIA against other airports in the same state and nationally.

Breaking down what drives delays at MIA, Late Aircraft leads the pack. Late Aircraft accounts for 37.5% of total delay minutes, followed by Carrier at 35.8% and NAS (National Aviation System) at 20.4%. Weather contributes 5.9% of delay minutes at this airport, while security holds the smallest share at 0.3%. Travelers often overestimate the weather share; the BTS categorization shows late-arriving aircraft and carrier operations as the larger contributors.

Seasonally, October runs the cleanest at MIA with a 91.4% on-time rate, while June is the roughest at 84.7% - a 7-point swing between best and worst month. Volume peaks in March, when average flights hit 18,588. The busiest route connecting MIA is to ATL (Atlanta), with 37,418 flights at a 76.7% on-time rate. Combine these numbers - 77.9% on-time, 78.6-minute average delay, 1.02% cancellation rate, and you have a concrete picture of departure reliability at Miami, FL.

Frequently Asked Questions

What is the on-time performance rate at Miami, FL (MIA)? ▼

Miami, FL has an overall on-time departure rate of 77.9%. Out of 1,160,127 total flights tracked, 256,336 experienced delays and 11,802 were cancelled.

What is the most common cause of delays at MIA? ▼

The top delay cause at Miami, FL is Late Aircraft. Late Aircraft accounts for 37.5% of all delay minutes.

What is the average delay time at MIA? ▼

The average delay at Miami, FL is 78.6 minutes. This includes delays from carrier issues, weather, National Aviation System constraints, security, and late-arriving aircraft.

What is the best month to fly from MIA? ▼

Based on historical data, October has the best on-time performance at MIA with 91.4% of flights departing on time.

What is the worst month for delays at MIA? ▼

June tends to have the most delays at MIA, with an on-time rate of only 84.7%.

How many routes operate from MIA? ▼

Miami, FL serves at least 20 routes. The busiest route is ATL to MIA (Atlanta - Miami) with 37,418 flights.

What is the cancellation rate at MIA? ▼

Miami, FL has a cancellation rate of 1.02%, based on 11,802 cancelled flights out of 1,160,127 total flights tracked.

Flight Guides

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Best & Worst Airlines for On-Time Performance

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Why Flights Get Cancelled

Cancellation causes broken down by data

How to Choose Reliable Flight Routes

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Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025). Statistics reflect cumulative performance across all available reporting periods. On-time rates exclude cancelled and diverted flights.

Read our methodology - how this data is sourced, computed, and verified.

Using MIA's data

An airport-level on-time rate is a starting point, not a guarantee for your specific flight.

Check the busiest route from MIA before you book a connection. See top routes
Travel in October rather than June if your dates are flexible. Seasonal patterns
Scores vary by airline and route within the same airport; check the specific carrier you're flying. Browse airlines

On-time rate reflects the BTS historical average across all reporting carriers at this airport, not any single flight or airline.

All airports → | Rankings →

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights Editorial

Source: U.S. Bureau of Transportation Statistics (BTS) Airline on-time performance and operational reliability · 2025 Accessed 2026-07-23

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. Airport figures are computed directly from BTS On-Time Performance data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.