Airport month record

MIAOCT

Miami International in October 2025

Departures: 8,457
Month: October 2025
National, same month: 79.7%
Carriers: 9

Historical statistics for October 2025, not live status or a forecast for this year’s October. For today’s conditions at MIA, see live FAA status.

MIA in October lands a B+, 2 points worse than the national rate of 79.7%. Roughly one flight in five arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That is a workable record, not a spotless one. That rests on 8,457 flights, of which Envoy Air flew 978 at 89.5% on time.

Envoy Air is the most reliable of the five carriers covered here at 89.5% on time across 978 flights.

On time

77.9%

Arrivals under 15 minutes late, of 8,406 completed departures

Avg delay

70 min

Across delayed arrivals only, not all flights

Cancelled

0.37%

Nationally in October: 0.53%

Whole year

73.8%

MIA across all twelve months

These figures cover 8,457 departures from Miami International in October 2025. On time means an arrival less than 15 minutes after the scheduled gate time, the DOT's threshold, and the national comparison uses every US departure in the same month rather than the whole year.

Against the year

October next to MIA's other months

Against MIA's own year, October ran 4 points better than the twelve-month rate of 73.8%, which makes it number two of twelve months, best first. Cancellations were unusually low for MIA in October, at 0.37% against 1.62% across the year. Either side of it, September ran 78.6% on time and November 77.0%, so this month sits in line with its neighbours.

MIA month by month
Month	Flights	On time	Avg delay	Cancelled	Grade
July 2025	9,079	63.6%	84 min	2.60%	D
August 2025	8,731	67.6%	77 min	0.86%	C+
September 2025	7,573	78.6%	70 min	0.36%	B+
October 2025 (this page)	8,457	77.9%	70 min	0.37%	B+
November 2025	9,270	77.0%	67 min	1.95%	B
December 2025	10,099	75.2%	66 min	1.15%	B
January 2026	10,439	76.0%	77 min	5.01%	B−
February 2026	9,304	75.3%	64 min	1.74%	B
March 2026	10,460	69.6%	78 min	2.96%	C
April 2026	9,556	75.3%	62 min	0.30%	B+
May 2026	9,296	75.3%	66 min	0.45%	B+
June 2026	8,797	74.2%	72 min	0.78%	C+

Departure window

The best time of day to leave MIA in October

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 21 points, against 15 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

5am–8am897 flights91.3%
8am–11am1,411 flights89.4%
11am–2pm1,011 flights77.4%
2pm–5pm1,339 flights74.5%
5pm–8pm1,909 flights70.4%
8pm–5am1,890 flights73.2%

Scale runs 60% to 95%. Rows with fewer than 30 flights show a dash.

Book the early departure. Flights leaving between 5am–8am arrive on time 91.3% of the time, against 70.4% for the evening window. That is 21 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5pm–8pm window is the busiest, with 1,909 flights scheduled in it.

Across the week, Wednesday is the strongest day at 90.0% on time and Monday the weakest at 64.4%. 26 points is a smaller lever than departure hour, but it is free.

Carrier by carrier

Which airlines ran best at MIA in October

The choice of carrier is not cosmetic here. Envoy Air arrives on time 89.5% of the time; American Airlines manages 75.0%. Sample sizes sit next to every figure, because a two-point gap across 5,041 flights means less than a ten-point one.

Carriers at MIA in October 2025
Airline	Flights	On time	Avg delay	Cancelled	Grade
American Airlines	5,041	75.0%	71 min	0.30%	B+
Envoy Air	978	89.5%	57 min	0.00%	A+
Delta Air Lines	885	77.0%	68 min	0.56%	B+
United Airlines	471	83.0%	73 min	0.00%	B+
Southwest Airlines	372	80.3%	49 min	0.00%	B+
Spirit Airlinesthin sample	305	74.1%	75 min	3.28%	C−
Frontier Airlinesthin sample	298	82.5%	111 min	0.00%	B+
Republic Airwaysthin sample	76	84.2%	60 min	0.00%	B+
Alaska Airlinesthin sample	31	73.3%	60 min	3.23%	C−

The spread between Envoy and American is 15 points, wide enough that it should decide the booking. On a hundred trips that is 15 more arrivals inside the on-time window.

Route by route

Busiest routes out of MIA in October

Routes from MIA in October 2025
Route	Flights	On time	Avg delay	Cancelled	Grade
MIA to ATL · Atlanta	484	78.6%	82 min	0.41%	B+
MIA to LGA · New York	483	66.7%	75 min	1.86%	C
MIA to DFW · Dallas-Fort Worth	414	74.5%	89 min	0.72%	C+
MIA to JFK · New York	372	76.2%	75 min	1.08%	B
MIA to MCO · Orlandothin sample	356	77.2%	69 min	0.00%	B+
MIA to DCA · Washingtonthin sample	337	79.3%	58 min	0.30%	B+
MIA to ORD · Chicagothin sample	323	77.4%	62 min	0.00%	B+
MIA to EWR · Newarkthin sample	307	73.4%	74 min	0.65%	C+
MIA to IAH · Houstonthin sample	304	80.2%	95 min	0.33%	B+
MIA to CLT · Charlottethin sample	304	85.2%	116 min	0.00%	A+
MIA to LAX · Los Angelesthin sample	269	81.0%	48 min	0.00%	B+
MIA to BOS · Bostonthin sample	250	56.9%	72 min	0.40%	D+
MIA to PHL · Philadelphiathin sample	244	81.9%	73 min	0.41%	B+
MIA to TPA · Tampathin sample	208	77.4%	80 min	0.00%	B+
MIA to BNA · Nashvillethin sample	205	78.9%	54 min	0.49%	B+
MIA to RDU · Raleighthin sample	194	80.3%	70 min	0.52%	B+
MIA to BWI · Baltimorethin sample	177	81.8%	68 min	0.56%	B+
MIA to SJU · San Juanthin sample	176	73.3%	62 min	0.00%	C+
MIA to DEN · Denverthin sample	172	79.5%	88 min	0.00%	B+
MIA to AUS · Austinthin sample	152	74.2%	43 min	0.00%	C+
MIA to PHX · Phoenixthin sample	148	84.2%	65 min	0.00%	B+
MIA to JAX · Jacksonvillethin sample	141	78.7%	98 min	0.00%	B+
MIA to MSY · New Orleansthin sample	140	77.0%	48 min	0.71%	B+
MIA to DTW · Detroitthin sample	136	84.4%	64 min	0.74%	B+
MIA to LAS · Las Vegasthin sample	130	79.1%	49 min	0.77%	B+

Delay causes

What held MIA up in October

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 130,000 reported delay minutes.

Late-arriving aircraft
37%
Carrier
31%
National Airspace System
28%
Extreme weather
4%
Security
0%

37% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 130,000 reported delay minutes here, that single category outweighs weather by 9 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 129,938 reported delay minutes.

Cancellations are rare at 0.37%, below the national 0.53% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.

7.7% of arrivals land an hour or more late, close to the national 6.3%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last a little over an hour, which a normal layover absorbs.

What to do with this

Flying from MIA in October

For a October trip through MIA: this is one of the better months to be flying from here, 77.9% on time with 0.37% cancelled. That is a base rate for the month as a whole; a single storm can still spoil a particular day.

Miami International (MIA), the whole year
MIA in July63.6%
MIA in August67.6%
MIA in September78.6%
MIA in November77.0%
MIA in December75.2%
MIA in January76.0%
MIA in February75.3%
MIA in March69.6%
MIA in April75.3%
MIA in May75.3%
MIA in June74.2%

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures