AA1259
AA1259 (American Airlines) is a multi-stop service on 2 routes, busiest Boston to Miami. Of 635 departures recorded from October 2024 to July 2026, 90.8% left on time, according to the US BTS.
- On-time departures90.8%of 635 flights
- Average delay2.5 min
- July 202631▲ 0.0%vs July 2025
- Cancelled2.2%
- Legs flown under this number2
Recorded departures by month
All legs under this number combined; see the leg table.
The most recent periods19 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 28 | 27 | ▼ 3.6% |
| February | 24 | 27 | ▲ 12.5% |
| March | 30 | 31 | ▲ 3.3% |
| April | 30 | 29 | ▼ 3.3% |
| May | 31 | 31 | 0.0% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 26 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 204 | 206 | ▲ 1.0% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods19 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 92.9% | 88.0% | ▼ 5.2% |
| February | 75.0% | 92.0% | ▲ 22.7% |
| March | 96.7% | 87.1% | ▼ 9.9% |
| April | 90.0% | 80.0% | ▼ 11.1% |
| May | 80.0% | 93.3% | ▲ 16.7% |
| June | 96.7% | 93.3% | ▼ 3.5% |
| July | 86.2% | 100.0% | ▲ 16.0% |
| August | 93.6% | – | – |
| September | 96.2% | – | – |
| October | 90.3% | – | in progress |
| November | 93.1% | – | – |
| December | 90.3% | – | – |
| Year-to-date average (Jan–Jul) | 88.2% | 90.5% | ▲ 2.6% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 2 | – |
| February | 0 | 2 | – |
| March | 0 | 0 | – |
| April | 0 | 4 | – |
| May | 1 | 1 | 0.0% |
| June | 0 | 0 | – |
| July | 2 | 0 | ▼ 100.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 3 | 9 | ▲ 200.0% |
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 97.8% 621
- Cancelled 2.2% 14
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
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BOS MIA Boston Logan International Airport – Miami International Airport | 2,028 | 2.4 min | 90.9% | 592 |
| DTW ORD Detroit Metropolitan Wayne County Airport – Chicago O'Hare International Airport | 376 | 4.1 min | 89.5% | 43 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 27 | 27 | 96.3% | 0 |
| December 2024 | 29 | 28 | 89.3% | 1 |
| January 2025 | 28 | 28 | 92.9% | 0 |
| February 2025 | 24 | 24 | 75.0% | 0 |
| March 2025 | 30 | 30 | 96.7% | 0 |
| April 2025 | 30 | 30 | 90.0% | 0 |
| May 2025 | 31 | 30 | 80.0% | 1 |
| June 2025 | 30 | 30 | 96.7% | 0 |
| July 2025 | 31 | 29 | 86.2% | 2 |
| August 2025 | 31 | 31 | 93.6% | 0 |
| September 2025 | 26 | 26 | 96.2% | 0 |
| October 2025 | 31 | 31 | 90.3% | 0 |
| November 2025 | 30 | 29 | 93.1% | 1 |
| December 2025 | 31 | 31 | 90.3% | 0 |
| January 2026 | 27 | 25 | 88.0% | 2 |
| February 2026 | 27 | 25 | 92.0% | 2 |
| March 2026 | 31 | 31 | 87.1% | 0 |
| April 2026 | 29 | 25 | 80.0% | 4 |
| May 2026 | 31 | 30 | 93.3% | 1 |
| June 2026 | 30 | 30 | 93.3% | 0 |
| July 2026 | 31 | 31 | 100.0% | 0 |