United Airlines · Santa Ana, CA to San Francisco, CA · 139 flights observed, 2026-02-12 to 2026-06-30 · 372 mi
UA5339 covers more than one route in the data window — the stats below are for SNA → SFO, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA5339 on time?
Across 139 flights on SNA → SFO from 2026-02-12 to 2026-06-30, UA5339 arrived within 15 minutes of schedule 52% of the time. The median arrival delay was +11 min, and the worst 10% of flights arrived +87 min or later. 4% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 70 | 52% |
| 16-30 min | 11 | 8% |
| 31-60 min | 23 | 17% |
| 61-120 min | 27 | 20% |
| 2+ hrs | 3 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-02 | 16 | 75% | +93 min |
| 2026-03 | 30 | 97% | -13 min |
| 2026-04 | 28 | 36% | +71 min |
| 2026-05 | 30 | 33% | +40 min |
| 2026-06 | 30 | 30% | +43 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 19 | 32% |
| Tue | 20 | 70% |
| Wed | 19 | 47% |
| Thu | 18 | 50% |
| Fri | 20 | 45% |
| Sat | 19 | 79% |
| Sun | 19 | 42% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…