Flight OddsUA3988 IAH → CLT
United Airlines · Houston, TX to Charlotte, NC · 185 flights observed, 2025-10-26 to 2026-06-30 · 912 mi
UA3988 covers more than one route in the data window — the stats below are for IAH → CLT, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
89%
Median delay
-8 min
90th percentile
+23 min
Cancellation rate
1%
How often is UA3988 on time?
Across 185 flights on IAH → CLT from 2025-10-26 to 2026-06-30, UA3988 arrived within 15 minutes of schedule 89% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +23 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 | 162 | 89% |
| 16-30 min | 7 | 4% |
| 31-60 min | 9 | 5% |
| 61-120 min | 1 | 1% |
| 2+ hrs | 4 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 6 | 100% | -13 min |
| 2025-11 | 29 | 90% | -5 min |
| 2025-12 | 29 | 93% | -2 min |
| 2026-01 | 3 | 100% | -7 min |
| 2026-02 | 14 | 79% | +2 min |
| 2026-03 | 22 | 86% | 0 min |
| 2026-04 | 26 | 92% | -5 min |
| 2026-05 | 28 | 89% | +5 min |
| 2026-06 | 26 | 81% | +1 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 30 | 87% |
| Tue | 27 | 89% |
| Wed | 29 | 86% |
| Thu | 28 | 89% |
| Fri | 29 | 90% |
| Sat | 11 | 91% |
| Sun | 29 | 90% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…