Flight OddsUA4878 MOB → IAH
United Airlines · Mobile, AL to Houston, TX · 359 flights observed, 2025-07-01 to 2026-06-30 · 427 mi
UA4878 covers more than one route in the data window — the stats below are for MOB → IAH, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
90%
Median delay
-17 min
90th percentile
+17 min
Cancellation rate
0%
How often is UA4878 on time?
Across 359 flights on MOB → IAH from 2025-07-01 to 2026-06-30, UA4878 arrived within 15 minutes of schedule 90% of the time. The median arrival delay was -17 min, and the worst 10% of flights arrived +17 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 | 320 | 90% |
| 16-30 min | 10 | 3% |
| 31-60 min | 6 | 2% |
| 61-120 min | 3 | 1% |
| 2+ hrs | 18 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 84% | +3 min |
| 2025-08 | 31 | 87% | -12 min |
| 2025-09 | 30 | 97% | -10 min |
| 2025-10 | 31 | 97% | -14 min |
| 2025-11 | 25 | 92% | -17 min |
| 2025-12 | 31 | 84% | +7 min |
| 2026-01 | 30 | 93% | -11 min |
| 2026-02 | 28 | 100% | -18 min |
| 2026-03 | 30 | 83% | +17 min |
| 2026-04 | 30 | 90% | +3 min |
| 2026-05 | 31 | 84% | +23 min |
| 2026-06 | 29 | 86% | +26 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 52 | 90% |
| Tue | 52 | 92% |
| Wed | 52 | 94% |
| Thu | 51 | 90% |
| Fri | 52 | 83% |
| Sat | 46 | 89% |
| Sun | 52 | 88% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…