UA1511
UA1511 (United Airlines) is a multi-stop service on 16 routes, busiest Newark to Miami. Of 860 departures recorded from October 2024 to July 2026, 80.4% left on time, according to the US BTS.
- On-time departures80.4%of 860 flights
- Average delay11.3 min
- July 202627▼ 53.4%vs July 2025
- Cancelled1.6%
- Legs flown under this number16
according to the US BTS · Oct 12, 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 | 31 | 0.0% |
| February | 28 | 45 | ▲ 60.7% |
| March | 31 | 65 | ▲ 109.7% |
| April | 30 | 85 | ▲ 183.3% |
| May | 36 | 47 | ▲ 30.6% |
| June | 59 | 29 | ▼ 50.8% |
| July | 58 | 27 | ▼ 53.4% |
| August | 44 | – | – |
| September | 30 | – | – |
| October | 45 | – | in progress |
| November | 32 | – | – |
| December | 28 | – | – |
| Year to date (Jan–Jul) | 273 | 329 | ▲ 20.5% |
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 | 83.3% | 66.7% | ▼ 20.0% |
| February | 85.2% | 76.7% | ▼ 9.9% |
| March | 93.6% | 80.0% | ▼ 14.5% |
| April | 90.0% | 81.2% | ▼ 9.8% |
| May | 58.3% | 68.1% | ▲ 16.7% |
| June | 81.4% | 93.1% | ▲ 14.4% |
| July | 82.1% | 69.2% | ▼ 15.7% |
| August | 68.2% | – | – |
| September | 80.0% | – | – |
| October | 91.1% | – | in progress |
| November | 76.9% | – | – |
| December | 82.1% | – | – |
| Year-to-date average (Jan–Jul) | 82.0% | 76.4% | ▼ 6.8% |
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 | 1 | 1 | 0.0% |
| February | 1 | 2 | ▲ 100.0% |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 2 | 1 | ▼ 50.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 6 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 4 | 4 | 0.0% |
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 98.4% 846
- Cancelled 1.6% 14
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
99 of 9
| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| EWR MIA Newark Liberty International Airport – Miami International Airport | 1,750 | 15.7 min | 76.4% | 397 |
| RDU EWR Raleigh-Durham International Airport – Newark Liberty International Airport | 670 | -1.2 min | 92.1% | 77 |
| ATL EWR Hartsfield Jackson Atlanta International Airport – Newark Liberty International Airport | 1,199 | 0.8 min | 93.6% | 62 |
| MIA DEN Miami International Airport – Denver International Airport | 2,749 | 12.6 min | 78.2% | 55 |
| MIA SFO Miami International Airport – San Francisco International Airport | 4,154 | 33.4 min | 45.7% | 46 |
| IAH SAN George Bush Intercontinental Airport – San Diego International Airport | 2,093 | 7.5 min | 80.6% | 37 |
| STL EWR St. Louis Lambert International Airport – Newark Liberty International Airport | 1,400 | 27.2 min | 73.5% | 34 |
| TPA EWR Tampa International Airport – Newark Liberty International Airport | 1,607 | -3.1 min | 96.9% | 32 |
| DEN HDN Denver International Airport – Yampa Valley Airport | 227 | -1.8 min | 90.3% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 19 | 19 | 89.5% | 0 |
| November 2024 | 30 | 30 | 96.7% | 0 |
| December 2024 | 30 | 30 | 86.7% | 0 |
| January 2025 | 31 | 30 | 83.3% | 1 |
| February 2025 | 28 | 27 | 85.2% | 1 |
| March 2025 | 31 | 31 | 93.6% | 0 |
| April 2025 | 30 | 30 | 90.0% | 0 |
| May 2025 | 36 | 36 | 58.3% | 0 |
| June 2025 | 59 | 59 | 81.4% | 0 |
| July 2025 | 58 | 56 | 82.1% | 2 |
| August 2025 | 44 | 44 | 68.2% | 0 |
| September 2025 | 30 | 30 | 80.0% | 0 |
| October 2025 | 45 | 45 | 91.1% | 0 |
| November 2025 | 32 | 26 | 76.9% | 6 |
| December 2025 | 28 | 28 | 82.1% | 0 |
| January 2026 | 31 | 30 | 66.7% | 1 |
| February 2026 | 45 | 43 | 76.7% | 2 |
| March 2026 | 65 | 65 | 80.0% | 0 |
| April 2026 | 85 | 85 | 81.2% | 0 |
| May 2026 | 47 | 47 | 68.1% | 0 |
| June 2026 | 29 | 29 | 93.1% | 0 |
| July 2026 | 27 | 26 | 69.2% | 1 |