Flight OddsUA4040 IAH → RDU
United Airlines · Houston, TX to Raleigh/Durham, NC · 28 flights observed, 2026-05-21 to 2026-06-24 · 1,042 mi
UA4040 covers more than one route in the data window — the stats below are for IAH → RDU, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
75%
Median delay
-7 min
90th percentile
+65 min
Cancellation rate
0%
How often is UA4040 on time?
Across 28 flights on IAH → RDU from 2026-05-21 to 2026-06-24, UA4040 arrived within 15 minutes of schedule 75% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +65 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 | 21 | 75% |
| 16-30 min | 1 | 4% |
| 31-60 min | 3 | 11% |
| 61-120 min | 2 | 7% |
| 2+ hrs | 1 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-05 | 10 | 100% | -8 min |
| 2026-06 | 18 | 61% | +23 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 75% |
| Tue | No data | — |
| Wed | 5 | 80% |
| Thu | 5 | 80% |
| Fri | 5 | 80% |
| Sat | 5 | 60% |
| Sun | 4 | 75% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…