Flight OddsUA1239 IAH → JAX
United Airlines · Houston, TX to Jacksonville, FL · 67 flights observed, 2025-09-25 to 2025-12-01 · 816 mi
UA1239 covers more than one route in the data window — the stats below are for IAH → JAX, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
91%
Median delay
-11 min
90th percentile
+13 min
Cancellation rate
0%
How often is UA1239 on time?
Across 67 flights on IAH → JAX from 2025-09-25 to 2025-12-01, UA1239 arrived within 15 minutes of schedule 91% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +13 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 61 | 91% |
| 16-30 min | 1 | 1% |
| 31-60 min | 2 | 3% |
| 61-120 min | 3 | 4% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-09 | 6 | 83% | -9 min |
| 2025-10 | 31 | 97% | -7 min |
| 2025-11 | 29 | 90% | -2 min |
| 2025-12 | 1 | 0% | +69 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 10 | 80% |
| Tue | 9 | 100% |
| Wed | 9 | 89% |
| Thu | 10 | 80% |
| Fri | 9 | 100% |
| Sat | 10 | 100% |
| Sun | 10 | 90% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…