Flight OddsUA4237 TUL → IAH
United Airlines · Tulsa, OK to Houston, TX · 27 flights observed, 2025-07-03 to 2025-08-18 · 429 mi
UA4237 covers more than one route in the data window — the stats below are for TUL → IAH, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
77%
Median delay
-10 min
90th percentile
+42 min
Cancellation rate
4%
How often is UA4237 on time?
Across 27 flights on TUL → IAH from 2025-07-03 to 2025-08-18, UA4237 arrived within 15 minutes of schedule 77% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +42 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 | 20 | 77% |
| 16-30 min | 1 | 4% |
| 31-60 min | 3 | 12% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 2 | 8% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 15 | 73% | +11 min |
| 2025-08 | 11 | 82% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 71% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 7 | 86% |
| Fri | 6 | 67% |
| Sat | No data | — |
| Sun | 6 | 83% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…