UA1536
UA1536 (United Airlines) is a multi-stop service on 16 routes, busiest Denver to Newark. Of 807 departures recorded from October 2024 to July 2026, 85.3% left on time, according to the US BTS.
- On-time departures85.3%of 807 flights
- Average delay11.1 min
- July 202627▼ 12.9%vs July 2025
- Cancelled0.6%
- Legs flown under this number16
Recorded departures by month
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 | 25 | ▼ 10.7% |
| March | 55 | 55 | 0.0% |
| April | 30 | 61 | ▲ 103.3% |
| May | 31 | 69 | ▲ 122.6% |
| June | 30 | 29 | ▼ 3.3% |
| July | 31 | 27 | ▼ 12.9% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 37 | – | in progress |
| November | 54 | – | – |
| December | 46 | – | – |
| Year to date (Jan–Jul) | 236 | 297 | ▲ 25.8% |
according to the US BTS · October 2024 → July 2026
On-time departures by month
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 | 71.0% | 90.0% | ▲ 26.8% |
| February | 92.9% | 92.0% | ▼ 0.9% |
| March | 85.5% | 90.7% | ▲ 6.2% |
| April | 86.7% | 91.8% | ▲ 5.9% |
| May | 64.5% | 85.5% | ▲ 32.5% |
| June | 93.3% | 86.2% | ▼ 7.6% |
| July | 93.6% | 59.3% | ▼ 36.7% |
| August | 80.0% | – | – |
| September | 93.3% | – | – |
| October | 89.2% | – | in progress |
| November | 77.4% | – | – |
| December | 87.0% | – | – |
| Year-to-date average (Jan–Jul) | 83.9% | 85.1% | ▲ 1.4% |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
The most recent periods19 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 1 | – |
| February | 0 | 0 | – |
| March | 0 | 1 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 1 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 0 | 2 |
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 99.4% 802
- Cancelled 0.6% 5
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
7| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| DEN EWR Denver International Airport – Newark Liberty International Airport | 2,576 | 15.4 min | 84.2% | 305 |
| IAD RDU Washington Dulles International Airport – Raleigh-Durham International Airport | 361 | -0.4 min | 94.3% | 87 |
| RDU EWR Raleigh-Durham International Airport – Newark Liberty International Airport | 670 | -0.2 min | 91.9% | 74 |
| DEN IAD Denver International Airport – Washington Dulles International Airport | 2,332 | 0.3 min | 91.8% | 73 |
| EWR BOS Newark Liberty International Airport – Boston Logan International Airport | 322 | 36.5 min | 57.7% | 52 |
| LAX SFO Los Angeles International Airport – San Francisco International Airport | 543 | 14.0 min | 83.9% | 32 |
| EWR JAX Newark Liberty International Airport – Jacksonville International Airport | 1,321 | 21.8 min | 73.3% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 95.0% | 0 |
| November 2024 | 25 | 24 | 87.5% | 1 |
| December 2024 | 31 | 31 | 80.7% | 0 |
| January 2025 | 31 | 31 | 71.0% | 0 |
| February 2025 | 28 | 28 | 92.9% | 0 |
| March 2025 | 55 | 55 | 85.5% | 0 |
| April 2025 | 30 | 30 | 86.7% | 0 |
| May 2025 | 31 | 31 | 64.5% | 0 |
| June 2025 | 30 | 30 | 93.3% | 0 |
| July 2025 | 31 | 31 | 93.6% | 0 |
| August 2025 | 31 | 30 | 80.0% | 1 |
| September 2025 | 30 | 30 | 93.3% | 0 |
| October 2025 | 37 | 37 | 89.2% | 0 |
| November 2025 | 54 | 53 | 77.4% | 1 |
| December 2025 | 46 | 46 | 87.0% | 0 |
| January 2026 | 31 | 30 | 90.0% | 1 |
| February 2026 | 25 | 25 | 92.0% | 0 |
| March 2026 | 55 | 54 | 90.7% | 1 |
| April 2026 | 61 | 61 | 91.8% | 0 |
| May 2026 | 69 | 69 | 85.5% | 0 |
| June 2026 | 29 | 29 | 86.2% | 0 |
| July 2026 | 27 | 27 | 59.3% | 0 |