Flight OddsUA643 SFO → SNA
United Airlines · San Francisco, CA to Santa Ana, CA · 248 flights observed, 2025-08-19 to 2026-06-30 · 372 mi
UA643 covers more than one route in the data window — the stats below are for SFO → SNA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
81%
Median delay
-5 min
90th percentile
+27 min
Cancellation rate
0%
How often is UA643 on time?
Across 248 flights on SFO → SNA from 2025-08-19 to 2026-06-30, UA643 arrived within 15 minutes of schedule 81% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +27 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 | 201 | 81% |
| 16-30 min | 25 | 10% |
| 31-60 min | 13 | 5% |
| 61-120 min | 4 | 2% |
| 2+ hrs | 5 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 13 | 92% | +14 min |
| 2025-09 | 24 | 88% | -2 min |
| 2025-12 | 30 | 80% | +8 min |
| 2026-01 | 31 | 84% | +7 min |
| 2026-02 | 28 | 79% | +4 min |
| 2026-03 | 31 | 81% | +1 min |
| 2026-04 | 30 | 83% | +4 min |
| 2026-05 | 31 | 71% | +3 min |
| 2026-06 | 30 | 80% | +6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 35 | 71% |
| Tue | 37 | 86% |
| Wed | 36 | 89% |
| Thu | 35 | 77% |
| Fri | 35 | 77% |
| Sat | 35 | 89% |
| Sun | 35 | 77% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…