AA1421
AA1421 (American Airlines) is a multi-stop service on 13 routes, busiest Boston to Washington. Of 818 departures recorded from October 2024 to July 2026, 71.5% left on time, according to the US BTS.
- On-time departures71.5%of 818 flights
- Average delay26.5 min
- July 202631▼ 8.8%vs July 2025
- Cancelled5.1%
- Legs flown under this number13
according to the US BTS · Oct 13, 2024 → Jul 31, 2026 domestic flights only
Recorded departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 31 | 30 | ▼ 3.2% |
| February | 28 | 28 | 0.0% |
| March | 53 | 31 | ▼ 41.5% |
| April | 56 | 30 | ▼ 46.4% |
| May | 57 | 31 | ▼ 45.6% |
| June | 60 | 30 | ▼ 50.0% |
| July | 34 | 31 | ▼ 8.8% |
| August | 49 | – | – |
| September | 60 | – | – |
| October | 36 | – | in progress |
| November | 30 | – | – |
| December | 13 | – | – |
| Year to date (Jan–Jul) | 319 | 211 | ▼ 33.9% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
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 | 86.2% | 74.1% | ▼ 14.1% |
| February | 82.1% | 75.0% | ▼ 8.7% |
| March | 71.7% | 80.0% | ▲ 11.6% |
| April | 66.1% | 93.1% | ▲ 40.9% |
| May | 62.3% | 80.7% | ▲ 29.5% |
| June | 61.8% | 50.0% | ▼ 19.1% |
| July | 33.3% | 57.7% | ▲ 73.1% |
| August | 80.0% | – | – |
| September | 37.5% | – | – |
| October | 80.6% | – | in progress |
| November | 86.7% | – | – |
| December | 84.6% | – | – |
| Year-to-date average (Jan–Jul) | 66.2% | 72.9% | ▲ 10.1% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Partial coverage: domestic flights only · 22 of 22 periods have data
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Partial coverage: domestic flights only · 22 of 22 periods have data
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 2 | 3 | ▲ 50.0% |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 1 | – |
| May | 4 | 0 | ▼ 100.0% |
| June | 5 | 4 | ▼ 20.0% |
| July | 7 | 5 | ▼ 28.6% |
| August | 4 | – | – |
| September | 4 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 18 | 14 | ▼ 22.2% |
according to the US BTS · October 2024 → July 2026
This is not a forecast
This is a historical record of departures already flown, not a forecast for your flight.
This number flies several legs
Several legs: the headline figure averages all of them. See the leg table.
Cancellation share
- Not cancelled 94.9% 776
- Cancelled 5.1% 42
Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
88 of 8
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| BOS DCA Boston Logan International Airport – Ronald Reagan Washington National Airport | 641 | 38.5 min | 62.5% | 194 |
| DCA BOS Ronald Reagan Washington National Airport – Boston Logan International Airport | 641 | 23.7 min | 65.0% | 169 |
| ORD JFK Chicago O'Hare International Airport – John F. Kennedy International Airport | 1,188 | 58.2 min | 51.1% | 104 |
| DFW PHX Dallas Fort Worth International Airport – Phoenix Sky Harbor International Airport | 1,393 | 15.7 min | 87.6% | 100 |
| MKE DFW General Mitchell International Airport – Dallas Fort Worth International Airport | 1,374 | 19.9 min | 93.0% | 44 |
| MIA ORD Miami International Airport – Chicago O'Hare International Airport | 1,930 | 9.1 min | 82.4% | 37 |
| PHX AUS Phoenix Sky Harbor International Airport – Austin Bergstrom International Airport | 1,401 | 7.8 min | 83.9% | 31 |
| ATL MIA Hartsfield Jackson Atlanta International Airport – Miami International Airport | 959 | 6.4 min | 79.3% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 14 | 14 | 92.9% | 0 |
| November 2024 | 51 | 50 | 94.0% | 1 |
| December 2024 | 35 | 34 | 82.4% | 1 |
| January 2025 | 31 | 29 | 86.2% | 2 |
| February 2025 | 28 | 28 | 82.1% | 0 |
| March 2025 | 53 | 53 | 71.7% | 0 |
| April 2025 | 56 | 56 | 66.1% | 0 |
| May 2025 | 57 | 53 | 62.3% | 4 |
| June 2025 | 60 | 55 | 61.8% | 5 |
| July 2025 | 34 | 27 | 33.3% | 7 |
| August 2025 | 49 | 45 | 80.0% | 4 |
| September 2025 | 60 | 56 | 37.5% | 4 |
| October 2025 | 36 | 36 | 80.6% | 0 |
| November 2025 | 30 | 30 | 86.7% | 0 |
| December 2025 | 13 | 13 | 84.6% | 0 |
| January 2026 | 30 | 27 | 74.1% | 3 |
| February 2026 | 28 | 28 | 75.0% | 0 |
| March 2026 | 31 | 30 | 80.0% | 1 |
| April 2026 | 30 | 29 | 93.1% | 1 |
| May 2026 | 31 | 31 | 80.7% | 0 |
| June 2026 | 30 | 26 | 50.0% | 4 |
| July 2026 | 31 | 26 | 57.7% | 5 |