Flight OddsUA4039 ATL → IAH
United Airlines · Atlanta, GA to Houston, TX · 10 flights observed, 2026-01-10 to 2026-02-10 · 689 mi
UA4039 covers more than one route in the data window — the stats below are for ATL → IAH, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
80%
Median delay
-17 min
90th percentile
+17 min
Cancellation rate
0%
How often is UA4039 on time?
Across 10 flights on ATL → IAH from 2026-01-10 to 2026-02-10, UA4039 arrived within 15 minutes of schedule 80% 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 | 8 | 80% |
| 16-30 min | 2 | 20% |
| 31-60 min | 0 | 0% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 7 | 71% | -4 min |
| 2026-02 | 3 | 100% | -35 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | No data | — |
| Tue | 5 | 100% |
| Wed | No data | — |
| Thu | No data | — |
| Fri | No data | — |
| Sat | 5 | 60% |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…