AA404
AA404 (American Airlines) is a multi-stop service on 5 routes, busiest Boston to Los Angeles. Of 156 departures recorded from October 2024 to May 2026, 86.5% left on time, according to the US BTS.
- On-time departures86.5%of 156 flights
- Average delay23.4 min
- May 20265▼ 83.9%vs May 2025
- Cancelled0.6%
- Legs flown under this number5
Recorded departures by month
Short series — AA404 has only 11 months so far. Enough to show the level now, not enough to read a trend.
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods8 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 6 | – | – |
| February | – | – | – |
| March | – | – | – |
| April | 26 | 24 | ▼ 7.7% |
| May | 31 | 5 | ▼ 83.9% |
| June | 4 | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 7 | – | – |
| December | 2 | – | – |
according to the US BTS · October 2024 → May 2026
On-time departures by month
Short series — AA404 has only 11 months so far. Enough to show the level now, not enough to read a trend.
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 periods8 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 100.0% | – | – |
| February | – | – | – |
| March | – | – | – |
| April | 96.2% | 100.0% | ▲ 4.0% |
| May | 87.1% | 100.0% | ▲ 14.8% |
| June | 75.0% | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 66.7% | – | – |
| December | 100.0% | – | – |
according to the US BTS · October 2024 → May 2026
Average departure delay by month
Short series — AA404 has only 11 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
according to the US BTS · October 2024 → May 2026
Cancelled departures by month
Short series — AA404 has only 11 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods8 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | – | – |
| February | – | – | – |
| March | – | – | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
according to the US BTS · October 2024 → May 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 99.4% 155
- Cancelled 0.6% 1
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → May 6, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BOS LAX Boston Logan International Airport – Los Angeles International Airport | 4,193 | 34.1 min | 93.3% | 90 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 4 | 4 | 100.0% | 0 |
| December 2024 | 27 | 27 | 55.6% | 0 |
| January 2025 | 6 | 6 | 100.0% | 0 |
| April 2025 | 26 | 26 | 96.2% | 0 |
| May 2025 | 31 | 31 | 87.1% | 0 |
| June 2025 | 4 | 4 | 75.0% | 0 |
| November 2025 | 7 | 6 | 66.7% | 1 |
| December 2025 | 2 | 2 | 100.0% | 0 |
| April 2026 | 24 | 24 | 100.0% | 0 |
| May 2026 | 5 | 5 | 100.0% | 0 |