Flight OddsUnited Airlines · Philadelphia, PA to San Francisco, CA · 87 flights observed, 2026-03-29 to 2026-06-30 · 2,522 mi
UA2661 covers more than one route in the data window — the stats below are for PHL → SFO, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA2661 on time?
Across 87 flights on PHL → SFO from 2026-03-29 to 2026-06-30, UA2661 arrived within 15 minutes of schedule 89% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +17 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 77 | 89% |
| 16-30 min | 5 | 6% |
| 31-60 min | 4 | 5% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 3 | 100% | -3 min |
| 2026-04 | 30 | 100% | -7 min |
| 2026-05 | 24 | 92% | -1 min |
| 2026-06 | 30 | 73% | +13 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 14 | 86% |
| Tue | 14 | 86% |
| Wed | 10 | 90% |
| Thu | 13 | 92% |
| Fri | 13 | 92% |
| Sat | 10 | 100% |
| Sun | 13 | 77% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…