UA390
UA390 (United Airlines) is a multi-stop service on 4 routes, busiest Boston to San Francisco. Of 120 departures recorded from October 2024 to October 2025, 80.8% left on time, according to the US BTS.
- On-time departures80.8%of 120 flights
- Average delay7.6 min
- October 202525▲ 66.7%vs October 2024
- Cancelled0.0%
- Legs flown under this number4
Recorded departures by month
Short series — UA390 has only 4 months so far. Enough to show the level now, not enough to read a trend.
All legs under this number combined; see the leg table.
Months without data are left blank.
The most recent periods4 periods
| Period | Departures 2024 | Departures 2025 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | – | – |
| April | – | – | – |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | 26 | – |
| September | – | 54 | – |
| October | 15 | 25 | ▲ 66.7% |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · October 2024 → October 2025
On-time departures by month
Short series — UA390 has only 4 months so far. Enough to show the level now, not enough to read a trend.
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 periods4 periods
| Period | On time 2024 | On time 2025 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | – | – |
| April | – | – | – |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | 76.9% | – |
| September | – | 83.3% | – |
| October | 80.0% | 80.0% | 0.0% |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · October 2024 → October 2025
Average departure delay by month
Short series — UA390 has only 4 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
according to the US BTS · October 2024 → October 2025
Cancelled departures by month
Short series — UA390 has only 4 months so far. Enough to show the level now, not enough to read a trend.
Months without data are left blank.
The most recent periods4 periods
| Period | Cancelled 2024 | Cancelled 2025 | Change vs last year |
|---|---|---|---|
| January | – | – | – |
| February | – | – | – |
| March | – | – | – |
| April | – | – | – |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | 0 | – |
| September | – | 0 | – |
| October | 0 | 0 | – |
| November | – | – | – |
| December | – | – | – |
according to the US BTS · October 2024 → October 2025
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% 120
- Cancelled 0.0% 0
Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Oct 25, 2025
On time, leg by leg
Departures within 15 minutes of schedule; small figure = departures recorded.
Legs flown under this number
3| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SFO PHX San Francisco International Airport – Phoenix Sky Harbor International Airport | 1,047 | 6.0 min | 81.1% | 37 |
| BOS SFO Boston Logan International Airport – San Francisco International Airport | 4,341 | 8.0 min | 83.8% | 37 |
| BZN DEN Bozeman Yellowstone International Airport – Denver International Airport | 844 | 6.8 min | 77.4% | 31 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| October 2024 | 15 | 15 | 80.0% | 0 |
| August 2025 | 26 | 26 | 76.9% | 0 |
| September 2025 | 54 | 54 | 83.3% | 0 |
| October 2025 | 25 | 25 | 80.0% | 0 |