UA1579
UA1579 (United Airlines) is a multi-stop service on 14 routes, busiest Denver to New York. Of 794 departures recorded from October 2024 to July 2026, 72.1% left on time, according to the US BTS.
- On-time departures72.1%of 794 flights
- Average delay24.3 min
- July 202631▲ 19.2%vs July 2025
- Cancelled2.1%
- Legs flown under this number14
according to the US BTS · Oct 27, 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 | 28 | 31 | ▲ 10.7% |
| February | 26 | 28 | ▲ 7.7% |
| March | 55 | 31 | ▼ 43.6% |
| April | 30 | 31 | ▲ 3.3% |
| May | 39 | 45 | ▲ 15.4% |
| June | 51 | 30 | ▼ 41.2% |
| July | 26 | 31 | ▲ 19.2% |
| August | 28 | – | – |
| September | 36 | – | – |
| October | 61 | – | in progress |
| November | 54 | – | – |
| December | 32 | – | – |
| Year to date (Jan–Jul) | 255 | 227 | ▼ 11.0% |
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 | 96.4% | 76.7% | ▼ 20.5% |
| February | 96.2% | 73.1% | ▼ 24.0% |
| March | 87.3% | 61.3% | ▼ 29.8% |
| April | 83.3% | 80.7% | ▼ 3.2% |
| May | 55.3% | 86.7% | ▲ 56.8% |
| June | 52.9% | 66.7% | ▲ 25.9% |
| July | 42.9% | 63.3% | ▲ 47.8% |
| August | 51.9% | – | – |
| September | 83.3% | – | – |
| October | 83.1% | – | in progress |
| November | 59.6% | – | – |
| December | 70.0% | – | – |
| Year-to-date average (Jan–Jul) | 73.5% | 72.6% | ▼ 1.1% |
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 | 0 | 1 | – |
| February | 0 | 2 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 1 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 5 | 1 | ▼ 80.0% |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 2 | – | in progress |
| November | 2 | – | – |
| December | 2 | – | – |
| Year to date (Jan–Jul) | 6 | 4 | ▼ 33.3% |
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 97.9% 777
- Cancelled 2.1% 17
Share of all recorded flights in the period, all legs. · Oct 27, 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 |
|---|---|---|---|---|
| DEN LGA Denver International Airport – LaGuardia Airport | 2,600 | 21.8 min | 72.9% | 343 |
| EWR CLE Newark Liberty International Airport – Cleveland Hopkins International Airport | 649 | 29.3 min | 70.1% | 88 |
| DEN BZN Denver International Airport – Bozeman Yellowstone International Airport | 844 | -3.5 min | 95.8% | 72 |
| CLT EWR Charlotte Douglas International Airport – Newark Liberty International Airport | 850 | 93.2 min | 28.2% | 45 |
| MCO EWR Orlando International Airport – Newark Liberty International Airport | 1,511 | 35.1 min | 58.3% | 36 |
| EWR SFO Newark Liberty International Airport – San Francisco International Airport | 4,118 | 20.6 min | 61.1% | 36 |
| LGA ORD LaGuardia Airport – Chicago O'Hare International Airport | 1,177 | 43.2 min | 46.4% | 31 |
| SFO DEN San Francisco International Airport – Denver International Airport | 1,553 | -7.0 min | 100.0% | 30 |
| JAX EWR Jacksonville International Airport – Newark Liberty International Airport | 1,321 | 73.3 min | 46.7% | 30 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 10 | 10 | 70.0% | 0 |
| November 2024 | 58 | 58 | 60.3% | 0 |
| December 2024 | 33 | 33 | 81.8% | 0 |
| January 2025 | 28 | 28 | 96.4% | 0 |
| February 2025 | 26 | 26 | 96.2% | 0 |
| March 2025 | 55 | 55 | 87.3% | 0 |
| April 2025 | 30 | 30 | 83.3% | 0 |
| May 2025 | 39 | 38 | 55.3% | 1 |
| June 2025 | 51 | 51 | 52.9% | 0 |
| July 2025 | 26 | 21 | 42.9% | 5 |
| August 2025 | 28 | 27 | 51.9% | 1 |
| September 2025 | 36 | 36 | 83.3% | 0 |
| October 2025 | 61 | 59 | 83.1% | 2 |
| November 2025 | 54 | 52 | 59.6% | 2 |
| December 2025 | 32 | 30 | 70.0% | 2 |
| January 2026 | 31 | 30 | 76.7% | 1 |
| February 2026 | 28 | 26 | 73.1% | 2 |
| March 2026 | 31 | 31 | 61.3% | 0 |
| April 2026 | 31 | 31 | 80.7% | 0 |
| May 2026 | 45 | 45 | 86.7% | 0 |
| June 2026 | 30 | 30 | 66.7% | 0 |
| July 2026 | 31 | 30 | 63.3% | 1 |