UA2256
UA2256 (United Airlines) is a multi-stop service on 6 routes, busiest San Francisco to Boston. Of 115 departures recorded from December 2025 to March 2026, 84.2% left on time, according to the US BTS.
- On-time departures84.2%of 115 flights
- Average delay9.1 min
- March 202626
- Cancelled0.9%
- Legs flown under this number6
Recorded departures by month
Short series — UA2256 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.
The most recent periods4 periods
| Period | Departures 2025 | Departures 2026 | Change vs last year |
|---|---|---|---|
| January | – | 36 | – |
| February | – | 25 | – |
| March | – | 26 | – |
| April | – | – | – |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 28 | – | – |
according to the US BTS · December 2025 → March 2026
On-time departures by month
Short series — UA2256 has only 4 months so far. Enough to show the level now, not enough to read a trend.
On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.
The most recent periods4 periods
| Period | On time 2025 | On time 2026 | Change vs last year |
|---|---|---|---|
| January | – | 80.0% | – |
| February | – | 88.0% | – |
| March | – | 80.8% | – |
| April | – | – | – |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 89.3% | – | – |
according to the US BTS · December 2025 → March 2026
Average departure delay by month
Short series — UA2256 has only 4 months so far. Enough to show the level now, not enough to read a trend.
according to the US BTS · December 2025 → March 2026
Cancelled departures by month
Short series — UA2256 has only 4 months so far. Enough to show the level now, not enough to read a trend.
The most recent periods4 periods
| Period | Cancelled 2025 | Cancelled 2026 | Change vs last year |
|---|---|---|---|
| January | – | 1 | – |
| February | – | 0 | – |
| March | – | 0 | – |
| April | – | – | – |
| May | – | – | – |
| June | – | – | – |
| July | – | – | – |
| August | – | – | – |
| September | – | – | – |
| October | – | – | in progress |
| November | – | – | – |
| December | 0 | – | – |
according to the US BTS · December 2025 → March 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 99.1% 114
- Cancelled 0.9% 1
Share of all recorded flights in the period, all legs. · Dec 18, 2025 → Mar 28, 2026
Legs flown under this number
1| Routes | Distance (km) | Avg delay | On time | Departures |
|---|---|---|---|---|
| SFO BOS San Francisco International Airport – Boston Logan International Airport | 4,341 | 18.9 min | 83.3% | 37 |
Monthly figures
| Period | Departures | With departure delay recorded | On time | Cancelled |
|---|---|---|---|---|
| December 2025 | 28 | 28 | 89.3% | 0 |
| January 2026 | 36 | 35 | 80.0% | 1 |
| February 2026 | 25 | 25 | 88.0% | 0 |
| March 2026 | 26 | 26 | 80.8% | 0 |