Flight OddsUA4237 SHV → IAH
United Airlines · Shreveport, LA to Houston, TX · 74 flights observed, 2026-03-05 to 2026-05-20 · 192 mi
UA4237 covers more than one route in the data window — the stats below are for SHV → IAH, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
82%
Median delay
0 min
90th percentile
+69 min
Cancellation rate
4%
How often is UA4237 on time?
Across 74 flights on SHV → IAH from 2026-03-05 to 2026-05-20, UA4237 arrived within 15 minutes of schedule 82% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +69 min or later. 4% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 58 | 82% |
| 16-30 min | 3 | 4% |
| 31-60 min | 2 | 3% |
| 61-120 min | 2 | 3% |
| 2+ hrs | 6 | 8% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 26 | 81% | +16 min |
| 2026-04 | 29 | 83% | +17 min |
| 2026-05 | 16 | 81% | +9 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 11 | 73% |
| Tue | 11 | 73% |
| Wed | 11 | 91% |
| Thu | 11 | 82% |
| Fri | 10 | 100% |
| Sat | 6 | 83% |
| Sun | 11 | 73% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…