Flight OddsUnited Airlines · Dallas/Fort Worth, TX to Houston, TX · 13 flights observed, 2025-10-26 to 2025-11-30 · 224 mi
UA4040 covers more than one route in the data window — the stats below are for DFW → IAH, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA4040 on time?
Across 13 flights on DFW → IAH from 2025-10-26 to 2025-11-30, UA4040 arrived within 15 minutes of schedule 80% of the time. The median arrival delay was -17 min, and the worst 10% of flights arrived +47 min or later. 23% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 8 | 80% |
| 16-30 min | 0 | 0% |
| 31-60 min | 1 | 10% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 10% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 1 | 100% | -6 min |
| 2025-11 | 9 | 78% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | No data | — |
| Tue | No data | — |
| Wed | 2 | 100% |
| Thu | No data | — |
| Fri | No data | — |
| Sat | 3 | 67% |
| Sun | 5 | 80% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…