Flight OddsUA2441 BOS → SFO
United Airlines · Boston, MA to San Francisco, CA · 313 flights observed, 2025-07-01 to 2026-06-30 · 2,704 mi
UA2441 covers more than one route in the data window — the stats below are for BOS → SFO, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
85%
Median delay
-6 min
90th percentile
+23 min
Cancellation rate
1%
How often is UA2441 on time?
Across 313 flights on BOS → SFO from 2025-07-01 to 2026-06-30, UA2441 arrived within 15 minutes of schedule 85% of the time. The median arrival delay was -6 min, and the worst 10% of flights arrived +23 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 262 | 85% |
| 16-30 min | 28 | 9% |
| 31-60 min | 12 | 4% |
| 61-120 min | 6 | 2% |
| 2+ hrs | 2 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 87% | -8 min |
| 2025-08 | 31 | 94% | -12 min |
| 2025-09 | 29 | 90% | -11 min |
| 2025-10 | 24 | 92% | -8 min |
| 2025-11 | 29 | 83% | +7 min |
| 2025-12 | 31 | 61% | +14 min |
| 2026-01 | 5 | 0% | +30 min |
| 2026-02 | 14 | 71% | +5 min |
| 2026-03 | 30 | 90% | -4 min |
| 2026-04 | 26 | 88% | -3 min |
| 2026-05 | 30 | 97% | -7 min |
| 2026-06 | 30 | 87% | +3 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 46 | 85% |
| Tue | 37 | 92% |
| Wed | 41 | 90% |
| Thu | 46 | 78% |
| Fri | 47 | 87% |
| Sat | 47 | 79% |
| Sun | 46 | 83% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…