Flight OddsUnited Airlines · Houston, TX to Mission/McAllen/Edinburg, TX · 10 flights observed, 2025-12-18 to 2026-01-05 · 316 mi
UA4039 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 UA4039 on time?
Across 10 flights on IAH → MFE from 2025-12-18 to 2026-01-05, UA4039 arrived within 15 minutes of schedule 100% of the time. The median arrival delay was -16 min, and the worst 10% of flights arrived +0 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 | 10 | 100% |
| 16-30 min | 0 | 0% |
| 31-60 min | 0 | 0% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 7 | 100% | -14 min |
| 2026-01 | 3 | 100% | -13 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 100% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 1 | 100% |
| Fri | 3 | 100% |
| Sat | No data | — |
| Sun | 3 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…