Flight OddsIAH → SFO United Airlines
United Airlines · Houston, TX to San Francisco, CA · 3,600 flights, 2025-07-01 to 2026-06-30 · aggregated across 53 flight numbers
On-time arrival
79%
Median delay
-7 min
90th percentile
+44 min
Cancellation rate
0%
How on-time is United Airlines from IAH to SFO?
Across every United Airlines flight number on IAH → SFO (3,600 flights, 2025-07-01 to 2026-06-30), 79% arrived within 15 minutes of schedule. Median arrival delay -7 min; the worst 10% ran +44 min or later. 0% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 2,840 | 79% |
| 16-30 min | 262 | 7% |
| 31-60 min | 212 | 6% |
| 61-120 min | 160 | 4% |
| 2+ hrs | 107 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 299 | 75% | +16 min |
| 2025-08 | 297 | 81% | +4 min |
| 2025-09 | 289 | 90% | -2 min |
| 2025-10 | 304 | 83% | +1 min |
| 2025-11 | 299 | 82% | -1 min |
| 2025-12 | 310 | 81% | +2 min |
| 2026-01 | 297 | 85% | -2 min |
| 2026-02 | 276 | 86% | -4 min |
| 2026-03 | 305 | 89% | -7 min |
| 2026-04 | 299 | 75% | +11 min |
| 2026-05 | 307 | 67% | +14 min |
| 2026-06 | 299 | 59% | +20 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 514 | 74% |
| Tue | 511 | 88% |
| Wed | 517 | 80% |
| Thu | 516 | 75% |
| Fri | 508 | 78% |
| Sat | 500 | 83% |
| Sun | 515 | 79% |
UA flight numbers on IAH → SFO
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…