Flight OddsIAH → GSP United Airlines
United Airlines · Houston, TX to Greer, SC · 667 flights, 2025-07-01 to 2026-06-30 · aggregated across 15 flight numbers
On-time arrival
82%
Median delay
-8 min
90th percentile
+37 min
Cancellation rate
1%
How on-time is United Airlines from IAH to GSP?
Across every United Airlines flight number on IAH → GSP (667 flights, 2025-07-01 to 2026-06-30), 82% arrived within 15 minutes of schedule. Median arrival delay -8 min; the worst 10% ran +37 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 542 | 82% |
| 16-30 min | 43 | 7% |
| 31-60 min | 29 | 4% |
| 61-120 min | 27 | 4% |
| 2+ hrs | 19 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 56 | 66% | +20 min |
| 2025-08 | 54 | 70% | +11 min |
| 2025-09 | 52 | 92% | -6 min |
| 2025-10 | 58 | 93% | -5 min |
| 2025-11 | 56 | 80% | +13 min |
| 2025-12 | 55 | 78% | +10 min |
| 2026-01 | 48 | 83% | -2 min |
| 2026-02 | 45 | 91% | -7 min |
| 2026-03 | 55 | 89% | +22 min |
| 2026-04 | 60 | 88% | -3 min |
| 2026-05 | 61 | 87% | -4 min |
| 2026-06 | 60 | 68% | +13 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 104 | 84% |
| Tue | 87 | 83% |
| Wed | 100 | 89% |
| Thu | 103 | 88% |
| Fri | 101 | 79% |
| Sat | 65 | 71% |
| Sun | 100 | 77% |
UA flight numbers on IAH → GSP
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…