Flight OddsUA1663 IAH → PHL
United Airlines · Houston, TX to Philadelphia, PA · 264 flights observed, 2025-08-01 to 2026-06-30 · 1,325 mi
UA1663 covers more than one route in the data window — the stats below are for IAH → PHL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
80%
Median delay
-4 min
90th percentile
+52 min
Cancellation rate
1%
How often is UA1663 on time?
Across 264 flights on IAH → PHL from 2025-08-01 to 2026-06-30, UA1663 arrived within 15 minutes of schedule 80% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +52 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 | 209 | 80% |
| 16-30 min | 12 | 5% |
| 31-60 min | 18 | 7% |
| 61-120 min | 13 | 5% |
| 2+ hrs | 9 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 29 | 69% | +19 min |
| 2025-09 | 24 | 83% | +4 min |
| 2025-10 | 6 | 67% | +21 min |
| 2025-11 | 29 | 69% | +14 min |
| 2025-12 | 31 | 94% | -3 min |
| 2026-01 | 29 | 93% | -8 min |
| 2026-02 | 27 | 81% | +9 min |
| 2026-03 | 7 | 100% | -8 min |
| 2026-04 | 30 | 83% | -2 min |
| 2026-05 | 27 | 81% | +13 min |
| 2026-06 | 22 | 59% | +30 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 41 | 78% |
| Tue | 39 | 97% |
| Wed | 40 | 78% |
| Thu | 37 | 73% |
| Fri | 33 | 82% |
| Sat | 32 | 84% |
| Sun | 39 | 69% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…