Flight profile · United Airlines
UA2441
Boston (BOS) to San Francisco (SFO) · scheduled 6:00 AM – 9:28 AM
How UA2441 performs
553 operations, 2024-07-01 to 2026-06-30.
UA2441 arrived on time 86.0% of the time, against 75.0% for all BOS → SFO flights — this specific departure is 11.0 percentage points better than the route as a whole. Against United Airlines’s own flights on this route it is 6.9 points better.
Source: US DOT Bureau of Transportation Statistics · 553 operations between 2024-07-01 to 2026-06-30
Against the rest of the route
| On time | Cancelled | Median delay | Severe | Flights | |
|---|---|---|---|---|---|
| UA2441 | 86.0% | 0.72% | -8 min | 1.8% | 553 |
| United Airlines on BOS → SFO | 79.1% | 1.18% | -8 min | 7.6% | 5,334 |
| All BOS → SFO flights | 75.0% | 0.96% | -6 min | 8.6% | 13,723 |
Source: FlyerIntel analysis of US DOT BTS data · 2024-07-01 to 2026-06-30
Other routes UA2441 has flown
A flight number is a slot in a schedule, and carriers reassign it. These are the other city pairs this number served in the analysis period.
| Route | Operated | Flights | On time |
|---|---|---|---|
| SFO→SNA San Francisco to Santa Ana | 2026-03-29 – 2026-05-20 | 53 | — |
| SFO→LAX San Francisco to Los Angeles | 2026-03-05 – 2026-03-28 | 24 | — |
| MCO→EWR Orlando to Newark | 2026-01-06 – 2026-02-11 | 37 | — |
| SFO→PHX San Francisco to Phoenix | 2025-10-26 – 2026-01-05 | 55 | — |
| PHX→ORD Phoenix to Chicago | 2025-10-26 – 2025-12-01 | 36 | — |
| LAS→IAH Las Vegas to Houston | 2025-10-07 – 2025-10-07 | 1 | — |
| SFO→RDM San Francisco to Redmond | 2025-08-19 – 2025-09-01 | 14 | — |
| SFO→BUR San Francisco to Burbank | 2024-08-19 – 2025-08-18 | 309 | 84.4% |
| SFO→LAS San Francisco to Las Vegas | 2024-11-01 – 2024-12-02 | 32 | — |
| IAH→EWR Houston to Newark | 2024-05-23 – 2024-06-26 | 35 | — |
| EWR→RDU Newark to Raleigh–Durham | 2024-05-23 – 2024-06-26 | 25 | — |
| MFE→IAH McAllen to Houston | 2024-05-23 – 2024-06-26 | 25 | — |
| PSP→DEN Palm Springs to Denver | 2023-09-30 – 2024-05-22 | 236 | 91.1% |
| AUS→ORD Austin to Chicago | 2023-09-29 – 2023-09-29 | 1 | — |
| LAX→CLE Los Angeles to Cleveland | 2023-09-05 – 2023-09-28 | 24 | — |
| PDX→IAH Portland to Houston | 2023-07-01 – 2023-09-04 | 65 | — |
Because the same number has served different journeys, the statistics above describe only the route UA2441 currently operates. Blending them would produce an average of two different flights.
When it goes wrong
The average describes a usual day. This is the day that ruins a connection.
20 min late
against a median of 8 min early
Percentiles over 553 operations. Cancelled and diverted flights have no arrival time and are counted separately rather than as very late arrivals.
Why UA2441 runs late
Where US DOT attributed the delay minutes on this flight.
airspace and airport capacity, including weather-driven flow control
crew, maintenance, boarding, fuelling — within the carrier’s control
the inbound aircraft was late, so this flight started late
weather severe enough to stop this flight specifically
Share of the delay minutes US DOT attributed to each cause for UA2441 on BOS → SFO. A single late flight can carry more than one cause, and only delays of fifteen minutes or more are attributed at all.
Other departures on BOS → SFO
Same airports, same journey — and not the same odds of arriving on time.
| Flight | Airline | On time | Median arrival | Operations |
|---|---|---|---|---|
| UA1008 | United Airlines | 88.0% | 12 min early | 954 |
| UA1187 | United Airlines | 81.0% | 12 min early | 604 |
| DL977 | Delta Air Lines | 80.8% | 8 min early | 862 |
| B61833 | JetBlue | 80.2% | 13 min early | 681 |
| B6133 | JetBlue | 80.2% | 9 min early | 660 |
| B6733 | JetBlue | 69.4% | 3 min early | 763 |
| AS357 | Alaska Airlines | 68.6% | 2 min early | 636 |
| DL475 | Delta Air Lines | 68.4% | 3 min early | 744 |
Every departure listed carries at least 600 operations, so the comparison is between figures that mean something. Schedules change; confirm the departure still operates before booking around this.
Data and methodology
Calculated by FlyerIntel from 553 records of UA2441 operating BOS → SFO, published by the US DOT Bureau of Transportation Statistics. A flight counts as delayed when it arrives 15 or more minutes after schedule. Cancelled and diverted flights are excluded from the on-time rate and reported separately. Flight numbers are resolved as carrier plus number plus route, because the same number serves different routes over time.
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