AA866
AA866 (American Airlines) is a multi-stop service on 10 routes, busiest Chicago to Phoenix. Of 564 departures recorded from October 2024 to July 2026, 71.3% left on time, according to the US BTS.
- On-time departures71.3%of 564 flights
- Average delay21.5 min
- July 202631▲ 0.0%vs July 2025
- Cancelled1.8%
- Legs flown under this number10
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods18 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 27 | 5 | ▼ 81.5% |
| February | 24 | – | – |
| March | 26 | 24 | ▼ 7.7% |
| April | 27 | 30 | ▲ 11.1% |
| May | 31 | 31 | 0.0% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 2 | – | – |
| October | 26 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
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 periods18 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 88.5% | 80.0% | ▼ 9.6% |
| February | 91.7% | – | – |
| March | 80.0% | 58.3% | ▼ 27.1% |
| April | 96.3% | 70.0% | ▼ 27.3% |
| May | 74.2% | 80.7% | ▲ 8.7% |
| June | 53.3% | 55.2% | ▲ 3.5% |
| July | 62.1% | 38.7% | ▼ 37.6% |
| August | 56.7% | – | – |
| September | 50.0% | – | – |
| October | 65.4% | – | in progress |
| November | 67.9% | – | – |
| December | 80.7% | – | – |
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 periods18 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 1 | 0 | ▼ 100.0% |
| February | 0 | – | – |
| March | 1 | 0 | ▼ 100.0% |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 1 | – |
| July | 2 | 0 | ▼ 100.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 2 | – | – |
| December | 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 98.2% 554
- Cancelled 1.8% 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 |
|---|---|---|---|---|
| ORD PHX Chicago O'Hare International Airport – Phoenix Sky Harbor International Airport | 2,313 | 29.3 min | 66.6% | 346 |
| PHX ATL Phoenix Sky Harbor International Airport – Hartsfield Jackson Atlanta International Airport | 2,549 | 3.8 min | 85.7% | 86 |
| DFW CMH Dallas Fort Worth International Airport – John Glenn Columbus International Airport | 1,489 | 21.3 min | 63.3% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 40 | 39 | 76.9% | 1 |
| November 2024 | 31 | 31 | 90.3% | 0 |
| December 2024 | 26 | 25 | 72.0% | 1 |
| January 2025 | 27 | 26 | 88.5% | 1 |
| February 2025 | 24 | 24 | 91.7% | 0 |
| March 2025 | 26 | 25 | 80.0% | 1 |
| April 2025 | 27 | 27 | 96.3% | 0 |
| May 2025 | 31 | 31 | 74.2% | 0 |
| June 2025 | 30 | 30 | 53.3% | 0 |
| July 2025 | 31 | 29 | 62.1% | 2 |
| August 2025 | 31 | 30 | 56.7% | 1 |
| September 2025 | 2 | 2 | 50.0% | 0 |
| October 2025 | 26 | 26 | 65.4% | 0 |
| November 2025 | 30 | 28 | 67.9% | 2 |
| December 2025 | 31 | 31 | 80.7% | 0 |
| January 2026 | 5 | 5 | 80.0% | 0 |
| March 2026 | 24 | 24 | 58.3% | 0 |
| April 2026 | 30 | 30 | 70.0% | 0 |
| May 2026 | 31 | 31 | 80.7% | 0 |
| June 2026 | 30 | 29 | 55.2% | 1 |
| July 2026 | 31 | 31 | 38.7% | 0 |