Flight OddsUA1524 IAD → IAH
United Airlines · Washington, DC to Houston, TX · 334 flights observed, 2025-07-01 to 2026-06-30 · 1,190 mi
UA1524 covers more than one route in the data window — the stats below are for IAD → IAH, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
89%
Median delay
-14 min
90th percentile
+17 min
Cancellation rate
1%
How often is UA1524 on time?
Across 334 flights on IAD → IAH from 2025-07-01 to 2026-06-30, UA1524 arrived within 15 minutes of schedule 89% of the time. The median arrival delay was -14 min, and the worst 10% of flights arrived +17 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 297 | 89% |
| 16-30 min | 15 | 5% |
| 31-60 min | 10 | 3% |
| 61-120 min | 5 | 2% |
| 2+ hrs | 5 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 94% | -10 min |
| 2025-08 | 31 | 87% | -7 min |
| 2025-09 | 24 | 96% | -13 min |
| 2025-10 | 6 | 100% | -12 min |
| 2025-11 | 30 | 93% | -13 min |
| 2025-12 | 31 | 77% | -5 min |
| 2026-01 | 29 | 93% | +3 min |
| 2026-02 | 28 | 100% | -22 min |
| 2026-03 | 31 | 90% | +1 min |
| 2026-04 | 30 | 97% | -13 min |
| 2026-05 | 31 | 84% | -6 min |
| 2026-06 | 30 | 73% | +15 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 47 | 89% |
| Tue | 49 | 94% |
| Wed | 48 | 92% |
| Thu | 47 | 89% |
| Fri | 47 | 87% |
| Sat | 47 | 91% |
| Sun | 47 | 83% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…