Flight OddsUA4855 IAH → BHM
United Airlines · Houston, TX to Birmingham, AL · 56 flights observed, 2025-08-19 to 2026-01-05 · 562 mi
UA4855 covers more than one route in the data window — the stats below are for IAH → BHM, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
82%
Median delay
-9 min
90th percentile
+57 min
Cancellation rate
0%
How often is UA4855 on time?
Across 56 flights on IAH → BHM from 2025-08-19 to 2026-01-05, UA4855 arrived within 15 minutes of schedule 82% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +57 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 | 46 | 82% |
| 16-30 min | 3 | 5% |
| 31-60 min | 1 | 2% |
| 61-120 min | 4 | 7% |
| 2+ hrs | 2 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 10 | 70% | +9 min |
| 2025-09 | 13 | 85% | +11 min |
| 2025-11 | 1 | 100% | -22 min |
| 2025-12 | 27 | 89% | -2 min |
| 2026-01 | 5 | 60% | +27 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 10 | 80% |
| Tue | 6 | 83% |
| Wed | 5 | 100% |
| Thu | 10 | 70% |
| Fri | 10 | 80% |
| Sat | 5 | 80% |
| Sun | 10 | 90% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…