Flight OddsUA1439 SFO → IAH
United Airlines · San Francisco, CA to Houston, TX · 61 flights observed, 2026-01-06 to 2026-03-28 · 1,635 mi
UA1439 covers more than one route in the data window — the stats below are for SFO → IAH, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
89%
Median delay
-7 min
90th percentile
+20 min
Cancellation rate
0%
How often is UA1439 on time?
Across 61 flights on SFO → IAH from 2026-01-06 to 2026-03-28, UA1439 arrived within 15 minutes of schedule 89% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +20 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 | 54 | 89% |
| 16-30 min | 3 | 5% |
| 31-60 min | 2 | 3% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 2 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 26 | 96% | -10 min |
| 2026-02 | 11 | 82% | +28 min |
| 2026-03 | 24 | 83% | +15 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 75% |
| Tue | 9 | 100% |
| Wed | 9 | 100% |
| Thu | 9 | 89% |
| Fri | 9 | 100% |
| Sat | 9 | 89% |
| Sun | 8 | 63% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…