UA1509
UA1509 (United Airlines) is a multi-stop service on 2 routes, busiest San Francisco to Honolulu. Of 689 departures recorded from October 2024 to July 2026, 84.0% left on time, according to the US BTS.
- On-time departures84.0%of 689 flights
- Average delay13.4 min
- July 202631▲ 0.0%vs July 2025
- Cancelled0.0%
- Legs flown under this number2
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 | 52 | 31 | ▼ 40.4% |
| February | 38 | 28 | ▼ 26.3% |
| March | 31 | 31 | 0.0% |
| April | 30 | 30 | 0.0% |
| May | 31 | 31 | 0.0% |
| June | 30 | 30 | 0.0% |
| July | 31 | 31 | 0.0% |
| August | 31 | – | – |
| September | 30 | – | – |
| October | 31 | – | in progress |
| November | 30 | – | – |
| December | 31 | – | – |
| Year to date (Jan–Jul) | 243 | 212 | ▼ 12.8% |
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 | 90.4% | 83.9% | ▼ 7.2% |
| February | 79.0% | 75.0% | ▼ 5.0% |
| March | 83.9% | 87.1% | ▲ 3.9% |
| April | 93.3% | 86.7% | ▼ 7.1% |
| May | 87.1% | 71.0% | ▼ 18.5% |
| June | 76.7% | 90.0% | ▲ 17.4% |
| July | 83.9% | 77.4% | ▼ 7.7% |
| August | 80.7% | – | – |
| September | 80.0% | – | – |
| October | 96.8% | – | in progress |
| November | 90.0% | – | – |
| December | 83.9% | – | – |
| Year-to-date average (Jan–Jul) | 84.9% | 81.6% | ▼ 3.9% |
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 | 0 | – |
| February | 0 | 0 | – |
| March | 0 | 0 | – |
| April | 0 | 0 | – |
| May | 0 | 0 | – |
| June | 0 | 0 | – |
| July | 0 | 0 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 0 | – | – |
| December | 0 | – | – |
| Year to date (Jan–Jul) | 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 100.0% 689
- Cancelled 0.0% 0
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
2| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SFO HNL San Francisco International Airport – Daniel K. Inouye International Airport | 3,857 | 13.5 min | 84.2% | 658 |
| SEA SFO Seattle–Tacoma International Airport – San Francisco International Airport | 1,093 | 11.2 min | 80.7% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 20 | 20 | 85.0% | 0 |
| November 2024 | 30 | 30 | 80.0% | 0 |
| December 2024 | 31 | 31 | 83.9% | 0 |
| January 2025 | 52 | 52 | 90.4% | 0 |
| February 2025 | 38 | 38 | 79.0% | 0 |
| March 2025 | 31 | 31 | 83.9% | 0 |
| April 2025 | 30 | 30 | 93.3% | 0 |
| May 2025 | 31 | 31 | 87.1% | 0 |
| June 2025 | 30 | 30 | 76.7% | 0 |
| July 2025 | 31 | 31 | 83.9% | 0 |
| August 2025 | 31 | 31 | 80.7% | 0 |
| September 2025 | 30 | 30 | 80.0% | 0 |
| October 2025 | 31 | 31 | 96.8% | 0 |
| November 2025 | 30 | 30 | 90.0% | 0 |
| December 2025 | 31 | 31 | 83.9% | 0 |
| January 2026 | 31 | 31 | 83.9% | 0 |
| February 2026 | 28 | 28 | 75.0% | 0 |
| March 2026 | 31 | 31 | 87.1% | 0 |
| April 2026 | 30 | 30 | 86.7% | 0 |
| May 2026 | 31 | 31 | 71.0% | 0 |
| June 2026 | 30 | 30 | 90.0% | 0 |
| July 2026 | 31 | 31 | 77.4% | 0 |