Airport reliability
Miami (MIA) on-time performance
How reliably flights leave Miami, FL (MIA) and reach their destinations, by airline, departure hour and month, September 2025 to August 2026.
Miami, FL111,132 departures in 12 months
- Departures on time
- 72.7% U.S. average 75.6%
- Cancelled
- 1.6% U.S. average 1.9%
- 60+ minutes late
- 9.3% U.S. average 8.1%
- Scheduled departures
- 111,132 12 months
What this means
MIA departures ran below the U.S. average.
- 72.7% of the 111,132 scheduled departures from Miami (MIA) arrived at their destination on time, 2.9 points lower than the U.S. average of 75.6%.
- 1.6% of departures were cancelled (U.S. average 1.9%), and 9.3% arrived an hour or more late.
- Flights arriving at MIA were on time 76.0% of the time.
- Among airlines with at least 300 departures, Envoy Air was the most punctual from MIA (82.0%) and Spirit Airlines the least (61.6%).
- Over the last 3 years, October was the most reliable month for departures from MIA (81.4% on time) and July the least reliable (62.0%).
- Cancellations peaked in January, when 3.2% of flights were cancelled.
- Flights scheduled to depart 6 am to 7 am were the most punctual (89.2% on time); flights scheduled to depart 6 pm to 7 pm were the least (62.3%).
Airlines at MIA
Ranked by on-time arrival
| Airline | On time | Cancelled | 60+ min late | Avg delay when late | Departures |
|---|---|---|---|---|---|
| Envoy AirSold as American Eagle | 82.0% | 0.8% | 4.1% | 50 min | 14,383 |
| United Airlines | 77.4% | 1.1% | 8.7% | 84 min | 6,757 |
| Delta Air Lines | 72.9% | 2.2% | 9.3% | 78 min | 11,676 |
| Frontier Airlines | 71.9% | 2.4% | 10.9% | 85 min | 4,358 |
| American Airlines | 71.1% | 1.6% | 10.1% | 73 min | 64,336 |
| Alaska Airlines | 70.7% | 1.3% | 7.3% | 55 min | 533 |
| Southwest Airlines | 68.6% | 1.2% | 9.2% | 57 min | 5,373 |
| Republic AirwaysSold as American Eagle, Delta Connection, United Express | 68.0% | 1.5% | 13.1% | 91 min | 909 |
| Spirit Airlines | 61.6% | 5.4% | 14.8% | 75 min | 2,803 |
| JetBlue Airways | Insufficient sample | 4 | |||
Tap a heading to sort.
On-time rate by departure hour
Share of scheduled flights on time MIA average 72.7%
Show as table
| Period | On time | Flights |
|---|---|---|
| Departing before 6 am | 87.1% | 1,095 |
| Departing 6 am to 7 am | 89.2% | 5,470 |
| Departing 7 am to 8 am | 88.0% | 7,434 |
| Departing 8 am to 9 am | 87.9% | 8,894 |
| Departing 9 am to 10 am | 84.1% | 4,866 |
| Departing 10 am to 11 am | 79.9% | 2,917 |
| Departing 11 am to noon | 75.9% | 3,865 |
| Departing noon to 1 pm | 74.1% | 4,649 |
| Departing 1 pm to 2 pm | 72.4% | 4,398 |
| Departing 2 pm to 3 pm | 70.6% | 5,354 |
| Departing 3 pm to 4 pm | 66.8% | 7,523 |
| Departing 4 pm to 5 pm | 64.8% | 6,859 |
| Departing 5 pm to 6 pm | 63.0% | 7,331 |
| Departing 6 pm to 7 pm | 62.3% | 6,476 |
| Departing 7 pm to 8 pm | 63.9% | 9,795 |
| Departing 8 pm to 9 pm | 65.4% | 7,677 |
| Departing 9 pm to 10 pm | 68.6% | 9,662 |
| Departing 10 pm to 11 pm | 69.5% | 6,332 |
| Departing 11 pm to midnight | 74.6% | 535 |
Best and worst months at MIA
Share of scheduled flights on time 12-month average 72.7%
Show as table
| Period | On time | Flights |
|---|---|---|
| January | 71.3% | 30,835 |
| February | 75.3% | 28,299 |
| March | 67.6% | 31,913 |
| April | 75.9% | 29,024 |
| May | 69.9% | 28,239 |
| June | 67.2% | 26,181 |
| July | 62.0% | 27,016 |
| August | 66.2% | 25,867 |
| September | 75.7% | 22,730 |
| October | 81.4% | 24,915 |
| November | 80.9% | 27,103 |
| December | 74.6% | 29,897 |
Month by month, last 12 months
Share of scheduled flights on time U.S. average 75.6%
Show as table
| Period | On time | Flights |
|---|---|---|
| Sep 2025 | 78.1% | 7,573 |
| Oct 2025 | 77.4% | 8,457 |
| Nov 2025 | 75.4% | 9,270 |
| Dec 2025 | 74.1% | 10,099 |
| Jan 2026 | 72.0% | 10,439 |
| Feb 2026 | 73.8% | 9,304 |
| Mar 2026 | 67.1% | 10,460 |
| Apr 2026 | 74.8% | 9,556 |
| May 2026 | 74.7% | 9,296 |
| Jun 2026 | 73.3% | 8,797 |
| Jul 2026 | 61.9% | 9,204 |
| Aug 2026 | 71.8% | 8,677 |
Busiest routes from MIA
| To | On time | Cancelled | Airlines | Flights |
|---|---|---|---|---|
| Atlanta (ATL) | 72.9% | 1.6% | 6 | 6,271 |
| New York (LGA) | 63.9% | 4.2% | 4 | 5,955 |
| Dallas/Fort Worth (DFW) | 72.8% | 2.4% | 3 | 4,804 |
| New York (JFK) | 69.1% | 3.1% | 3 | 4,526 |
| Chicago (ORD) | 69.0% | 1.9% | 4 | 4,464 |
| Washington (DCA) | 74.1% | 2.0% | 4 | 3,954 |
| Newark (EWR) | 69.8% | 2.9% | 3 | 3,913 |
| Charlotte (CLT) | 77.1% | 1.6% | 3 | 3,733 |
| Orlando (MCO) | 72.5% | 1.1% | 3 | 3,700 |
| Houston (IAH) | 77.7% | 1.2% | 6 | 3,667 |
| Boston (BOS) | 68.1% | 2.2% | 6 | 3,366 |
| Philadelphia (PHL) | 72.5% | 3.3% | 3 | 3,289 |
| Los Angeles (LAX) | 74.5% | 0.7% | 2 | 3,251 |
| Tampa (TPA) | 70.6% | 1.1% | 3 | 2,927 |
| San Juan (SJU) | 75.6% | 0.9% | 3 | 2,645 |
| Nashville (BNA) | 69.0% | 1.2% | 5 | 2,533 |
| Denver (DEN) | 75.9% | 0.5% | 4 | 2,444 |
| Raleigh/Durham (RDU) | 70.4% | 1.6% | 5 | 2,365 |
| Baltimore (BWI) | 71.4% | 2.1% | 5 | 2,291 |
| Austin (AUS) | 71.5% | 0.9% | 5 | 2,236 |
Sources & data dates
- Source
- U.S. DOT Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987-present)
- Period
- September 2025 to August 2026 (12 months); month-of-year patterns September 2023 to August 2026
- Data through
- August 2026
- Processed
- 2026-11-03
- Scope
- Scheduled nonstop domestic departures from Miami, FL (MIA) by airlines that report to the DOT.
- Method
- Rates use all scheduled flights as the denominator; cancelled and diverted flights count as not on time. Figures based on fewer than 50 scheduled flights are suppressed. Full methodology.