AA551
AA551 (American Airlines) is a multi-stop service on 6 routes, busiest Miami to Philadelphia. Of 475 departures recorded from October 2024 to July 2026, 80.3% left on time, according to the US BTS.
- On-time departures80.3%of 475 flights
- Average delay19.4 min
- July 202631▲ 0.0%vs July 2025
- Cancelled0.8%
- Legs flown under this number6
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 31 | 5 | ▼ 83.9% |
| February | 28 | – | – |
| March | 30 | 1 | ▼ 96.7% |
| April | 30 | 24 | ▼ 20.0% |
| May | 31 | 29 | ▼ 6.5% |
| June | 30 | 29 | ▼ 3.3% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 29 | – | – |
| October | 24 | – | in progress |
| November | – | – | – |
| December | 12 | – | – |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 77.4% | 100.0% | ▲ 29.2% |
| February | 61.5% | – | – |
| March | 56.7% | 100.0% | ▲ 76.5% |
| April | 90.0% | 83.3% | ▼ 7.4% |
| May | 77.4% | 75.9% | ▼ 2.0% |
| June | 90.0% | 82.1% | ▼ 8.7% |
| July | 90.3% | 87.1% | ▼ 3.6% |
| August | 80.7% | – | – |
| September | 86.2% | – | – |
| October | 83.3% | – | in progress |
| November | – | – | – |
| December | 100.0% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 0 | – |
| February | 2 | – | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | – | – | – |
| December | 0 | – | – |
according to the US BTS · October 2024 → July 2026
This is a historical record of departures already flown, not a forecast for your flight.
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 99.2% 471
- Cancelled 0.8% 4
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| MIA PHL Miami International Airport – Philadelphia International Airport | 1,634 | 13.6 min | 86.4% | 302 |
| MCO PHL Orlando International Airport – Philadelphia International Airport | 1,389 | 26.5 min | 61.8% | 112 |
| PHL MIA Philadelphia International Airport – Miami International Airport | 1,634 | 51.2 min | 76.2% | 42 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 5 | 4 | 100.0% | 1 |
| December 2024 | 24 | 24 | 50.0% | 0 |
| January 2025 | 31 | 31 | 77.4% | 0 |
| February 2025 | 28 | 26 | 61.5% | 2 |
| March 2025 | 30 | 30 | 56.7% | 0 |
| April 2025 | 30 | 30 | 90.0% | 0 |
| May 2025 | 31 | 31 | 77.4% | 0 |
| June 2025 | 30 | 30 | 90.0% | 0 |
| July 2025 | 31 | 31 | 90.3% | 0 |
| August 2025 | 31 | 31 | 80.7% | 0 |
| September 2025 | 29 | 29 | 86.2% | 0 |
| October 2025 | 24 | 24 | 83.3% | 0 |
| December 2025 | 12 | 12 | 100.0% | 0 |
| January 2026 | 5 | 5 | 100.0% | 0 |
| March 2026 | 1 | 1 | 100.0% | 0 |
| April 2026 | 24 | 24 | 83.3% | 0 |
| May 2026 | 29 | 29 | 75.9% | 0 |
| June 2026 | 29 | 28 | 82.1% | 1 |
| July 2026 | 31 | 31 | 87.1% | 0 |