AA1327
AA1327 (American Airlines) is a multi-stop service on 4 routes, busiest Philadelphia to Chicago. Of 322 departures recorded from October 2024 to July 2026, 72.1% left on time, according to the US BTS.
- On-time departures72.1%of 322 flights
- Average delay28.5 min
- July 202631▲ 3.3%vs July 2025
- Cancelled3.1%
- Legs flown under this number4
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods11 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | – | – |
| April | 27 | 24 | ▼ 11.1% |
| May | 29 | 31 | ▲ 6.9% |
| June | 30 | 30 | 0.0% |
| July | 30 | 31 | ▲ 3.3% |
| August | 31 | – | – |
| September | 13 | – | – |
| October | 24 | – | in progress |
| November | – | – | – |
| December | – | – | – |
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 periods11 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | – | – |
| April | 74.1% | 87.5% | ▲ 18.1% |
| May | 74.1% | 80.7% | ▲ 8.9% |
| June | 53.6% | 93.3% | ▲ 74.2% |
| July | 36.0% | 83.9% | ▲ 133.0% |
| August | 46.7% | – | – |
| September | 69.2% | – | – |
| October | 70.8% | – | in progress |
| November | – | – | – |
| December | – | – | – |
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 periods11 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | – | – |
| April | 0 | 0 | – |
| May | 2 | 0 | ▼ 100.0% |
| June | 2 | 0 | ▼ 100.0% |
| July | 5 | 0 | ▼ 100.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | – | – | – |
| December | – | – | – |
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 96.9% 312
- Cancelled 3.1% 10
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 |
|---|---|---|---|---|
| PHL ORD Philadelphia International Airport – Chicago O'Hare International Airport | 1,088 | 38.1 min | 59.8% | 184 |
| SLC ORD Salt Lake City International Airport – Chicago O'Hare International Airport | 2,006 | 27.9 min | 87.5% | 72 |
| PIT ORD Pittsburgh International Airport – Chicago O'Hare International Airport | 662 | 8.6 min | 84.1% | 44 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 19 | 19 | 94.7% | 0 |
| November 2024 | 3 | 3 | 100.0% | 0 |
| April 2025 | 27 | 27 | 74.1% | 0 |
| May 2025 | 29 | 27 | 74.1% | 2 |
| June 2025 | 30 | 28 | 53.6% | 2 |
| July 2025 | 30 | 25 | 36.0% | 5 |
| August 2025 | 31 | 30 | 46.7% | 1 |
| September 2025 | 13 | 13 | 69.2% | 0 |
| October 2025 | 24 | 24 | 70.8% | 0 |
| April 2026 | 24 | 24 | 87.5% | 0 |
| May 2026 | 31 | 31 | 80.7% | 0 |
| June 2026 | 30 | 30 | 93.3% | 0 |
| July 2026 | 31 | 31 | 83.9% | 0 |