Flight OddsUnited Airlines · San Francisco, CA to San Antonio, TX · 104 flights observed, 2025-07-01 to 2026-01-05 · 1,482 mi
UA424 covers more than one route in the data window — the stats below are for SFO → SAT, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA424 on time?
Across 104 flights on SFO → SAT from 2025-07-01 to 2026-01-05, UA424 arrived within 15 minutes of schedule 77% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +45 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 | 79 | 77% |
| 16-30 min | 7 | 7% |
| 31-60 min | 8 | 8% |
| 61-120 min | 5 | 5% |
| 2+ hrs | 4 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 74% | +11 min |
| 2025-08 | 30 | 70% | +30 min |
| 2025-09 | 24 | 83% | -2 min |
| 2025-12 | 13 | 92% | -4 min |
| 2026-01 | 5 | 60% | +24 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 15 | 100% |
| Tue | 15 | 67% |
| Wed | 15 | 80% |
| Thu | 14 | 71% |
| Fri | 15 | 60% |
| Sat | 15 | 73% |
| Sun | 14 | 86% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…