UA366
UA366 (United Airlines) is a multi-stop service on 23 routes, busiest San Francisco to Newark. Of 591 departures recorded from October 2024 to July 2026, 84.2% left on time, according to the US BTS.
- On-time departures84.2%of 591 flights
- Average delay7.6 min
- July 202619
- Cancelled2.5%
- Legs flown under this number23
Recorded departures by month
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods17 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | 25 | 44 | ▲ 76.0% |
| February | 28 | 42 | ▲ 50.0% |
| March | 33 | 57 | ▲ 72.7% |
| April | 30 | 30 | 0.0% |
| May | 21 | 31 | ▲ 47.6% |
| June | – | 28 | – |
| July | – | 19 | – |
| August | 13 | – | – |
| September | 29 | – | – |
| October | 31 | – | in progress |
| November | 59 | – | – |
| December | 18 | – | – |
according to the US BTS · October 2024 → July 2026
On-time departures by month
Months without data are left blank.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods17 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | 88.0% | 89.7% | ▲ 2.0% |
| February | 88.9% | 83.3% | ▼ 6.3% |
| March | 78.8% | 89.1% | ▲ 13.1% |
| April | 53.3% | 77.8% | ▲ 45.8% |
| May | 61.9% | 100.0% | ▲ 61.6% |
| June | – | 96.3% | – |
| July | – | 38.9% | – |
| August | 100.0% | – | – |
| September | 96.6% | – | – |
| October | 87.1% | – | in progress |
| November | 86.2% | – | – |
| December | 83.3% | – | – |
according to the US BTS · October 2024 → July 2026
Average departure delay by month
Months without data are left blank.
according to the US BTS · October 2024 → July 2026
Cancelled departures by month
Months without data are left blank.
The most recent periods17 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | 0 | 5 | – |
| February | 1 | 0 | ▼ 100.0% |
| March | 0 | 2 | – |
| April | 0 | 3 | – |
| May | 0 | 0 | – |
| June | – | 1 | – |
| July | – | 1 | – |
| August | 0 | – | – |
| September | 0 | – | – |
| October | 0 | – | in progress |
| November | 1 | – | – |
| December | 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 97.5% 576
- Cancelled 2.5% 15
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
9Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 5 | 5 | 80.0% | 0 |
| November 2024 | 30 | 29 | 93.1% | 1 |
| December 2024 | 18 | 18 | 88.9% | 0 |
| January 2025 | 25 | 25 | 88.0% | 0 |
| February 2025 | 28 | 27 | 88.9% | 1 |
| March 2025 | 33 | 33 | 78.8% | 0 |
| April 2025 | 30 | 30 | 53.3% | 0 |
| May 2025 | 21 | 21 | 61.9% | 0 |
| August 2025 | 13 | 13 | 100.0% | 0 |
| September 2025 | 29 | 29 | 96.6% | 0 |
| October 2025 | 31 | 31 | 87.1% | 0 |
| November 2025 | 59 | 58 | 86.2% | 1 |
| December 2025 | 18 | 18 | 83.3% | 0 |
| January 2026 | 44 | 39 | 89.7% | 5 |
| February 2026 | 42 | 42 | 83.3% | 0 |
| March 2026 | 57 | 55 | 89.1% | 2 |
| April 2026 | 30 | 27 | 77.8% | 3 |
| May 2026 | 31 | 31 | 100.0% | 0 |
| June 2026 | 28 | 27 | 96.3% | 1 |
| July 2026 | 19 | 18 | 38.9% | 1 |