AA1859
AA1859 (American Airlines) is a multi-stop service on 20 routes, busiest Chicago to Philadelphia. Of 643 departures recorded from November 2024 to July 2026, 78.0% left on time, according to the US BTS.
- On-time departures78.0%of 643 flights
- Average delay18.0 min
- July 202631▲ 14.8%vs July 2025
- Cancelled1.2%
- Legs flown under this number20
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 | 25 | 30 | ▲ 20.0% |
| February | 39 | 28 | ▼ 28.2% |
| March | 33 | 31 | ▼ 6.1% |
| April | 30 | 54 | ▲ 80.0% |
| May | 27 | 51 | ▲ 88.9% |
| June | 26 | 30 | ▲ 15.4% |
| July | 27 | 31 | ▲ 14.8% |
| August | 17 | – | – |
| September | 57 | – | – |
| October | 36 | – | in progress |
| November | 16 | – | – |
| December | 29 | – | – |
| Year to date (Jan–Jul) | 207 | 255 | ▲ 23.2% |
according to the US BTS · November 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 | 76.0% | 92.6% | ▲ 21.8% |
| February | 76.9% | 96.4% | ▲ 25.4% |
| March | 84.9% | 96.8% | ▲ 14.0% |
| April | 90.0% | 74.1% | ▼ 17.7% |
| May | 85.2% | 64.7% | ▼ 24.0% |
| June | 72.0% | 58.6% | ▼ 18.6% |
| July | 44.4% | 58.6% | ▲ 31.9% |
| August | 68.8% | – | – |
| September | 87.7% | – | – |
| October | 75.0% | – | in progress |
| November | 93.8% | – | – |
| December | 79.3% | – | – |
| Year-to-date average (Jan–Jul) | 75.6% | 77.4% | ▲ 2.3% |
according to the US BTS · November 2024 → July 2026
Average departure delay by month
according to the US BTS · November 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 3 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 1 | 1 | 0.0% |
| July | 0 | 2 | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 1 | 6 | ▲ 500.0% |
according to the US BTS · November 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 98.8% 635
- Cancelled 1.2% 8
Share of all recorded flights in the period, all legs. · Nov 5, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
11Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| November 2024 | 22 | 22 | 86.4% | 0 |
| December 2024 | 4 | 4 | 100.0% | 0 |
| January 2025 | 25 | 25 | 76.0% | 0 |
| February 2025 | 39 | 39 | 76.9% | 0 |
| March 2025 | 33 | 33 | 84.9% | 0 |
| April 2025 | 30 | 30 | 90.0% | 0 |
| May 2025 | 27 | 27 | 85.2% | 0 |
| June 2025 | 26 | 25 | 72.0% | 1 |
| July 2025 | 27 | 27 | 44.4% | 0 |
| August 2025 | 17 | 16 | 68.8% | 1 |
| September 2025 | 57 | 57 | 87.7% | 0 |
| October 2025 | 36 | 36 | 75.0% | 0 |
| November 2025 | 16 | 16 | 93.8% | 0 |
| December 2025 | 29 | 29 | 79.3% | 0 |
| January 2026 | 30 | 27 | 92.6% | 3 |
| February 2026 | 28 | 28 | 96.4% | 0 |
| March 2026 | 31 | 31 | 96.8% | 0 |
| April 2026 | 54 | 54 | 74.1% | 0 |
| May 2026 | 51 | 51 | 64.7% | 0 |
| June 2026 | 30 | 29 | 58.6% | 1 |
| July 2026 | 31 | 29 | 58.6% | 2 |