UA1559
UA1559 (United Airlines) is a multi-stop service on 4 routes, busiest Santa Ana to Newark. Of 656 departures recorded from October 2024 to July 2026, 61.3% left on time, according to the US BTS.
- On-time departures61.3%of 656 flights
- Average delay46.6 min
- July 202631▲ 0.0%vs July 2025
- Cancelled1.5%
- Legs flown under this number4
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 | 28 | 0.0% |
| March | 31 | 31 | 0.0% |
| April | 30 | 30 | 0.0% |
| May | 29 | 31 | ▲ 6.9% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 29 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 210 | 212 | ▲ 1.0% |
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 | 77.4% | 56.7% | ▼ 26.8% |
| February | 78.6% | 61.5% | ▼ 21.7% |
| March | 74.2% | 54.8% | ▼ 26.1% |
| April | 56.7% | 86.7% | ▲ 52.9% |
| May | 42.3% | 83.9% | ▲ 98.2% |
| June | 33.3% | 70.0% | ▲ 110.0% |
| July | 36.7% | 73.3% | ▲ 100.0% |
| August | 54.8% | – | – |
| September | 73.3% | – | – |
| October | 38.7% | – | in progress |
| November | 64.3% | – | – |
| December | 51.6% | – | – |
| Year-to-date average (Jan–Jul) | 57.0% | 69.6% | ▲ 22.0% |
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 | 2 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 3 | 0 | ▼ 100.0% |
| June | 0 | 0 | – |
| July | 1 | 1 | 0.0% |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 4 | 4 | 0.0% |
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 98.5% 646
- Cancelled 1.5% 10
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SNA EWR John Wayne Orange County International Airport – Newark Liberty International Airport | 3,908 | 46.9 min | 61.7% | 619 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 19 | 79.0% | 1 |
| November 2024 | 30 | 30 | 53.3% | 0 |
| December 2024 | 32 | 32 | 53.1% | 0 |
| January 2025 | 31 | 31 | 77.4% | 0 |
| February 2025 | 28 | 28 | 78.6% | 0 |
| March 2025 | 31 | 31 | 74.2% | 0 |
| April 2025 | 30 | 30 | 56.7% | 0 |
| May 2025 | 29 | 26 | 42.3% | 3 |
| June 2025 | 30 | 30 | 33.3% | 0 |
| July 2025 | 31 | 30 | 36.7% | 1 |
| August 2025 | 31 | 31 | 54.8% | 0 |
| September 2025 | 30 | 30 | 73.3% | 0 |
| October 2025 | 31 | 31 | 38.7% | 0 |
| November 2025 | 29 | 28 | 64.3% | 1 |
| December 2025 | 31 | 31 | 51.6% | 0 |
| January 2026 | 31 | 30 | 56.7% | 1 |
| February 2026 | 28 | 26 | 61.5% | 2 |
| March 2026 | 31 | 31 | 54.8% | 0 |
| April 2026 | 30 | 30 | 86.7% | 0 |
| May 2026 | 31 | 31 | 83.9% | 0 |
| June 2026 | 30 | 30 | 70.0% | 0 |
| July 2026 | 31 | 30 | 73.3% | 1 |