AA621
AA621 (American Airlines) is a multi-stop service on 6 routes, busiest Atlanta to Philadelphia. Of 468 departures recorded from October 2024 to July 2026, 70.7% left on time, according to the US BTS.
- On-time departures70.7%of 468 flights
- Average delay24.3 min
- July 202662▲ 264.7%vs July 2025
- Cancelled1.7%
- 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 | 5 | 31 | ▲ 520.0% |
| February | 16 | 8 | ▼ 50.0% |
| March | 31 | 24 | ▼ 22.6% |
| April | 3 | 6 | ▲ 100.0% |
| May | 27 | 20 | ▼ 25.9% |
| June | 20 | 58 | ▲ 190.0% |
| July | 17 | 62 | ▲ 264.7% |
| August | 29 | – | – |
| September | 30 | – | – |
| October | 5 | – | in progress |
| November | – | – | – |
| December | – | – | – |
| Year to date (Jan–Jul) | 119 | 209 | ▲ 75.6% |
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 | 80.0% | 96.7% | ▲ 20.8% |
| February | 93.8% | 100.0% | ▲ 6.7% |
| March | 71.0% | 95.8% | ▲ 35.0% |
| April | 66.7% | 66.7% | 0.0% |
| May | 77.8% | 55.0% | ▼ 29.3% |
| June | 40.0% | 59.7% | ▲ 49.1% |
| July | 31.3% | 55.2% | ▲ 76.5% |
| August | 72.4% | – | – |
| September | 72.4% | – | – |
| October | 20.0% | – | in progress |
| November | – | – | – |
| December | – | – | – |
| Year-to-date average (Jan–Jul) | 65.8% | 75.6% | ▲ 14.9% |
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 | 1 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 1 | 4 | ▲ 300.0% |
| August | 0 | – | – |
| September | 1 | – | – |
| October | 0 | – | in progress |
| November | – | – | – |
| December | – | – | – |
| Year to date (Jan–Jul) | 1 | 6 | ▲ 500.0% |
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 98.3% 460
- Cancelled 1.7% 8
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
5| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| ATL PHL Hartsfield Jackson Atlanta International Airport – Philadelphia International Airport | 1,072 | 50.9 min | 52.5% | 167 |
| CLT SAN Charlotte Douglas International Airport – San Diego International Airport | 3,335 | 8.0 min | 79.0% | 81 |
| PHL ATL Philadelphia International Airport – Hartsfield Jackson Atlanta International Airport | 1,072 | 20.6 min | 64.7% | 70 |
| LAX MIA Los Angeles International Airport – Miami International Airport | 3,763 | 3.2 min | 94.1% | 69 |
| MCO PHL Orlando International Airport – Philadelphia International Airport | 1,389 | 12.1 min | 79.0% | 57 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 28 | 28 | 89.3% | 0 |
| December 2024 | 28 | 28 | 71.4% | 0 |
| January 2025 | 5 | 5 | 80.0% | 0 |
| February 2025 | 16 | 16 | 93.8% | 0 |
| March 2025 | 31 | 31 | 71.0% | 0 |
| April 2025 | 3 | 3 | 66.7% | 0 |
| May 2025 | 27 | 27 | 77.8% | 0 |
| June 2025 | 20 | 20 | 40.0% | 0 |
| July 2025 | 17 | 16 | 31.3% | 1 |
| August 2025 | 29 | 29 | 72.4% | 0 |
| September 2025 | 30 | 29 | 72.4% | 1 |
| October 2025 | 5 | 5 | 20.0% | 0 |
| January 2026 | 31 | 30 | 96.7% | 1 |
| February 2026 | 8 | 8 | 100.0% | 0 |
| March 2026 | 24 | 24 | 95.8% | 0 |
| April 2026 | 6 | 6 | 66.7% | 0 |
| May 2026 | 20 | 20 | 55.0% | 0 |
| June 2026 | 58 | 57 | 59.7% | 1 |
| July 2026 | 62 | 58 | 55.2% | 4 |