Flight OddsUA668 SJU → IAH
United Airlines · San Juan, PR to Houston, TX · 365 flights observed, 2025-07-01 to 2026-06-30 · 2,007 mi
On-time arrival
81%
Median delay
-7 min
90th percentile
+30 min
Cancellation rate
1%
How often is UA668 on time?
Across 365 flights on SJU → IAH from 2025-07-01 to 2026-06-30, UA668 arrived within 15 minutes of schedule 81% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +30 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 | 295 | 81% |
| 16-30 min | 31 | 9% |
| 31-60 min | 22 | 6% |
| 61-120 min | 10 | 3% |
| 2+ hrs | 4 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 93% | -15 min |
| 2025-08 | 31 | 84% | -4 min |
| 2025-09 | 30 | 93% | -9 min |
| 2025-10 | 31 | 65% | +10 min |
| 2025-11 | 30 | 73% | +13 min |
| 2025-12 | 31 | 84% | +5 min |
| 2026-01 | 30 | 73% | +5 min |
| 2026-02 | 27 | 85% | -6 min |
| 2026-03 | 31 | 84% | +3 min |
| 2026-04 | 30 | 77% | +5 min |
| 2026-05 | 31 | 84% | -2 min |
| 2026-06 | 30 | 83% | -10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 52 | 79% |
| Tue | 53 | 87% |
| Wed | 52 | 81% |
| Thu | 52 | 83% |
| Fri | 52 | 81% |
| Sat | 50 | 84% |
| Sun | 51 | 76% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…