AA1531
AA1531 (American Airlines) is a multi-stop service on 17 routes, busiest Philadelphia to Los Angeles. Of 756 departures recorded from October 2024 to July 2026, 77.0% left on time, according to the US BTS.
- On-time departures77.0%of 756 flights
- Average delay13.2 min
- July 202659▼ 4.8%vs July 2025
- Cancelled1.6%
- Legs flown under this number17
according to the US BTS · Oct 13, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 31 | 31 | 0.0% |
| February | 12 | 28 | ▲ 133.3% |
| March | 4 | 31 | ▲ 675.0% |
| April | 33 | 30 | ▼ 9.1% |
| May | 42 | 42 | 0.0% |
| June | 56 | 60 | ▲ 7.1% |
| July | 62 | 59 | ▼ 4.8% |
| August | 32 | – | – |
| September | 26 | – | – |
| October | 30 | – | in progress |
| November | 20 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 240 | 281 | ▲ 17.1% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 87.1% | 73.3% | ▼ 15.8% |
| February | 83.3% | 89.3% | ▲ 7.2% |
| March | 50.0% | 64.5% | ▲ 29.0% |
| April | 75.8% | 69.0% | ▼ 9.0% |
| May | 82.9% | 72.5% | ▼ 12.6% |
| June | 98.2% | 41.8% | ▼ 57.4% |
| July | 82.3% | 63.8% | ▼ 22.5% |
| August | 87.5% | – | – |
| September | 84.6% | – | – |
| October | 73.3% | – | in progress |
| November | 63.2% | – | – |
| December | 77.4% | – | – |
| Year-to-date average (Jan–Jul) | 79.9% | 67.7% | ▼ 15.3% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 1 | – |
| May | 1 | 2 | ▲ 100.0% |
| June | 0 | 5 | – |
| July | 0 | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 10 | ▲ 900.0% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 98.4% 744
- Cancelled 1.6% 12
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| PHL LAX Philadelphia International Airport – Los Angeles International Airport | 3,856 | 10.6 min | 88.9% | 99 |
| CLT CHS Charlotte Douglas International Airport – Charleston International Airport | 271 | 11.3 min | 89.7% | 87 |
| CHS CLT Charleston International Airport – Charlotte Douglas International Airport | 271 | 16.0 min | 87.4% | 87 |
| PHL PVD Philadelphia International Airport – Rhode Island T. F. Green International Airport | 382 | 7.8 min | 77.0% | 75 |
| DFW BOI Dallas Fort Worth International Airport – Boise Air Terminal/Gowen Field | 2,045 | 29.0 min | 52.9% | 71 |
| BOI DFW Boise Air Terminal/Gowen Field – Dallas Fort Worth International Airport | 2,045 | 28.2 min | 54.7% | 70 |
| MIA LAX Miami International Airport – Los Angeles International Airport | 3,763 | 1.8 min | 86.7% | 61 |
| DFW AUS Dallas Fort Worth International Airport – Austin Bergstrom International Airport | 306 | 15.4 min | 56.3% | 49 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 34 | 34 | 82.4% | 0 |
| November 2024 | 31 | 31 | 96.8% | 0 |
| December 2024 | 31 | 31 | 87.1% | 0 |
| January 2025 | 31 | 31 | 87.1% | 0 |
| February 2025 | 12 | 12 | 83.3% | 0 |
| March 2025 | 4 | 4 | 50.0% | 0 |
| April 2025 | 33 | 33 | 75.8% | 0 |
| May 2025 | 42 | 41 | 82.9% | 1 |
| June 2025 | 56 | 56 | 98.2% | 0 |
| July 2025 | 62 | 62 | 82.3% | 0 |
| August 2025 | 32 | 32 | 87.5% | 0 |
| September 2025 | 26 | 26 | 84.6% | 0 |
| October 2025 | 30 | 30 | 73.3% | 0 |
| November 2025 | 20 | 19 | 63.2% | 1 |
| December 2025 | 31 | 31 | 77.4% | 0 |
| January 2026 | 31 | 30 | 73.3% | 1 |
| February 2026 | 28 | 28 | 89.3% | 0 |
| March 2026 | 31 | 31 | 64.5% | 0 |
| April 2026 | 30 | 29 | 69.0% | 1 |
| May 2026 | 42 | 40 | 72.5% | 2 |
| June 2026 | 60 | 55 | 41.8% | 5 |
| July 2026 | 59 | 58 | 63.8% | 1 |