Flight OddsUA2237 SAN → IAH
United Airlines · San Diego, CA to Houston, TX · 339 flights observed, 2025-07-01 to 2026-06-30 · 1,303 mi
UA2237 covers more than one route in the data window — the stats below are for SAN → IAH, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
79%
Median delay
-4 min
90th percentile
+37 min
Cancellation rate
0%
How often is UA2237 on time?
Across 339 flights on SAN → IAH from 2025-07-01 to 2026-06-30, UA2237 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +37 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 | 267 | 79% |
| 16-30 min | 28 | 8% |
| 31-60 min | 25 | 7% |
| 61-120 min | 9 | 3% |
| 2+ hrs | 7 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 26 | 81% | +0 min |
| 2025-08 | 28 | 71% | +11 min |
| 2025-09 | 30 | 83% | +9 min |
| 2025-10 | 31 | 81% | +2 min |
| 2025-11 | 30 | 73% | +12 min |
| 2025-12 | 17 | 82% | +8 min |
| 2026-01 | 26 | 77% | -2 min |
| 2026-02 | 28 | 93% | -8 min |
| 2026-03 | 29 | 86% | +7 min |
| 2026-04 | 30 | 83% | -1 min |
| 2026-05 | 31 | 84% | -2 min |
| 2026-06 | 30 | 60% | +32 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 48 | 75% |
| Tue | 51 | 84% |
| Wed | 50 | 88% |
| Thu | 49 | 80% |
| Fri | 49 | 80% |
| Sat | 41 | 80% |
| Sun | 48 | 69% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…