Flight OddsUnited Airlines · Houston, TX to Mission/McAllen/Edinburg, TX · 52 flights observed, 2026-03-29 to 2026-05-19 · 316 mi
UA4858 covers more than one route in the data window — the stats below are for IAH → MFE, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA4858 on time?
Across 52 flights on IAH → MFE from 2026-03-29 to 2026-05-19, UA4858 arrived within 15 minutes of schedule 82% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +39 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 42 | 82% |
| 16-30 min | 3 | 6% |
| 31-60 min | 5 | 10% |
| 61-120 min | 1 | 2% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 3 | 100% | -8 min |
| 2026-04 | 29 | 76% | -3 min |
| 2026-05 | 19 | 89% | -8 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 88% |
| Tue | 8 | 100% |
| Wed | 7 | 86% |
| Thu | 7 | 86% |
| Fri | 7 | 57% |
| Sat | 6 | 83% |
| Sun | 8 | 75% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…