Miami International (MIA) on-time performance, September 2026
15,869 scheduled airline departures from Miami in September 2026, 68.1% of them on time. Measured from FAA departure data, updated every morning.
On time, day by day
Share of departures within 15 minutes of schedule, by day. Light bars show each day's departures for context. Worst day: Monday 7 September at 50.5%. Best: Wednesday 16 September at 83.8%.
Airlines at MIA, ranked by on-time share
Scheduled airlines with at least 30 departures from MIA in the month. Regional partners (SkyWest, Republic, Envoy and the like) appear under their own names; fractional and charter operators are in the totals but not listed.
| Airline | Departures | On time | 45+ min late | Avg delay (min) |
|---|---|---|---|---|
| Federal Express FDX | 171 | 100.0% | 0.0% | -21.7 |
| LACSA LRC | 30 | 93.3% | 6.7% | -2.2 |
| Gol Transportes Aéreos GLO | 35 | 91.4% | 5.7% | -5.0 |
| LAN Peru LPE | 64 | 90.6% | 6.2% | 3.5 |
| TAI TAI | 98 | 88.8% | 4.1% | -3.6 |
| Copa Airlines CMP | 209 | 86.6% | 4.8% | 4.3 |
| Avianca AVA | 205 | 85.4% | 6.8% | 4.6 |
| Aeromexico AMX | 80 | 85.0% | 5.0% | 5.2 |
| LAN Airlines LAN | 80 | 83.8% | 2.5% | -0.2 |
| Air Canada ACA | 52 | 82.7% | 9.6% | 4.5 |
| Emirates UAE | 47 | 80.9% | 10.6% | 13.4 |
| Envoy Air ENY | 1,239 | 80.8% | 9.5% | 7.4 |
| Bahamasair BHS | 60 | 80.0% | 8.3% | 4.0 |
| Air France AFR | 38 | 78.9% | 2.6% | 11.7 |
| Caribbean Airlines BWA | 72 | 77.8% | 12.5% | 10.4 |
| Frontier Airlines FFT | 306 | 76.8% | 14.7% | 18.6 |
| Republic Airways RPA | 33 | 75.8% | 15.2% | 10.8 |
| TAM Brazilian Airlines TAM | 70 | 75.7% | 8.6% | 9.9 |
| TAMPA TPA | 220 | 75.5% | 8.2% | 6.1 |
| DHL Aero Expreso DAE | 114 | 75.4% | 7.9% | 9.2 |
| Western Airlines WAL | 84 | 73.8% | 14.3% | 11.3 |
| Volaris VOI | 45 | 73.3% | 15.6% | 19.3 |
| CSB CSB | 160 | 72.5% | 10.6% | 11.4 |
| ITY ITY | 32 | 71.9% | 6.2% | 9.2 |
| Aires ARE | 49 | 71.4% | 10.2% | 9.1 |
| United Airlines UAL | 376 | 71.3% | 19.1% | 34.2 |
| Cayman Airways CAY | 58 | 70.7% | 20.7% | 22.8 |
| United Parcel Service UPS | 279 | 70.6% | 13.6% | 13.0 |
| Air Europa AEA | 30 | 70.0% | 3.3% | 7.7 |
| Airborne Express ABX | 198 | 69.7% | 13.1% | 11.0 |
| Airshare Holdings SHH | 33 | 69.7% | 9.1% | 6.0 |
| Aerolineas Argentinas ARG | 52 | 69.2% | 13.5% | 24.2 |
| TAP Portugal TAP | 41 | 68.3% | 17.1% | 23.7 |
| Delta Air Lines DAL | 883 | 67.3% | 20.6% | 28.5 |
| Iberia IBE | 55 | 67.3% | 12.7% | 29.1 |
| Southwest Airlines SWA | 370 | 67.0% | 17.8% | 20.0 |
| Cargojet Airways CJT | 106 | 67.0% | 18.9% | 29.1 |
| American Airlines AAL | 7,160 | 66.9% | 17.7% | 22.4 |
| BBQ BBQ | 186 | 66.7% | 18.3% | 21.6 |
| Grixona GXA | 138 | 65.9% | 21.0% | 26.2 |
| Turkish Airlines THY | 72 | 65.3% | 12.5% | 9.4 |
| TXG TXG | 66 | 63.6% | 24.2% | 20.9 |
| Transportes Aereos I.R. Crusoe ROU | 57 | 61.4% | 21.1% | 29.6 |
| British Airways BAW | 37 | 59.5% | 16.2% | 30.4 |
| Virgin Atlantic VIR | 31 | 58.1% | 25.8% | 40.1 |
| Alaska Airlines ASA | 30 | 56.7% | 23.3% | 23.6 |
| Kalitta Air CKS | 50 | 54.0% | 20.0% | 27.1 |
| KII KII | 41 | 51.2% | 36.6% | 41.2 |
| IBC Airways CSQ | 120 | 50.8% | 24.2% | 26.3 |
| Aerolane LNE | 116 | 49.1% | 26.7% | 32.1 |
| Qatar Airways QTR | 39 | 48.7% | 10.3% | 19.8 |
| Gulf & Caribbean Cargo / Contract Air Cargo TSU | 70 | 48.6% | 28.6% | 24.8 |
| LAE LAE | 178 | 47.2% | 25.3% | 35.2 |
| Amerijet International AJT | 341 | 45.7% | 37.5% | 53.6 |
| Air Transport International ATN | 36 | 44.4% | 16.7% | 21.9 |
| LTG LTG | 45 | 42.2% | 33.3% | 43.3 |
| DWI DWI | 53 | 41.5% | 22.6% | 26.3 |
| Atlas Air GTI | 326 | 39.9% | 33.4% | 50.2 |
| LAN Cargo LCO | 81 | 27.2% | 40.7% | 50.5 |
Destinations with the longest delays
Routes from MIA with at least 20 departures, by average departure delay.
| To | Flights | On time | Avg delay |
|---|---|---|---|
| FRA Frankfurt | 29 | 13.8% | 64.3 |
| RIC Richmond | 30 | 30.0% | 63.8 |
| ANC Anchorage | 82 | 48.8% | 56.2 |
| DAL Dallas | 30 | 53.3% | 51.6 |
| SRQ Sarasota/Bradenton | 31 | 61.3% | 49.4 |
| AEX Alexandria | 20 | 45.0% | 48.2 |
| SAP San Pedro Sula | 41 | 58.5% | 47.8 |
| BRU Brussels | 60 | 33.3% | 46.6 |
| TYS Knoxville | 37 | 48.6% | 43.8 |
| RTB Roatan | 30 | 60.0% | 41.0 |
Busiest destinations
The ten routes with the most departures from MIA this month.
| To | Flights | On time | Avg delay |
|---|---|---|---|
| BOG Bogota | 631 | 65.6% | 21.5 |
| ATL Atlanta | 487 | 70.8% | 25.2 |
| LGA New York | 424 | 67.5% | 25.0 |
| DFW Dallas-Fort Worth | 399 | 74.2% | 13.8 |
| JFK New York | 366 | 65.6% | 27.0 |
| PTY Panama City | 343 | 76.1% | 10.1 |
| ORD Chicago | 337 | 65.9% | 28.3 |
| HAV Havana | 336 | 67.3% | 19.7 |
| SJU San Juan | 327 | 70.0% | 16.0 |
| DCA Washington | 318 | 75.8% | 16.3 |
Other months for MIA
Airline pages for September 2026
How we measure
On time means the aircraft took off within 15 minutes of its scheduled departure, after subtracting the departure airport's normal taxi time at MIA (FAA SWIM reports wheels-off, not push-back, so the median taxi time of the last 30 days is taken off every flight first). Average delay is the mean of that taxi-adjusted delay over all departures; early departures count as negative minutes, so an operator that routinely leaves early can show a negative average. 45+ min late is the share of departures that left 45 minutes or more behind schedule, the point at which most connections are at risk.
Scope: scheduled airlines only, the same set as the monthly State of the Sky report (operators with published routes; private, fractional and charter operators are left out), so the two publications give the same numbers for the same month. Departures are counted by scheduled day (UTC). Each day's flights are rolled up overnight and published the next morning; the newest day keeps filling in for a day or two and is only shown once it is substantially complete. Figures can differ by a few tenths of a point from the State of the Sky report for the same month: that report is frozen on the 2nd of the following month, while these pages are rebuilt from the live rollup, which recomputes each airport's taxi baseline nightly and re-rolls the last week of the month as late departure times arrive (September 2026 at SFO: 16,398 departures in both, 69.2% on time here against 69.5% in the report).
Source: FAA System Wide Information Management (SWIM) flight plans and departure times, processed by PlaneTrack. Free to quote with credit to PlaneTrack (CC BY 4.0).