Flight OddsUA5520 OKC → IAH
United Airlines · Oklahoma City, OK to Houston, TX · 208 flights observed, 2025-07-01 to 2026-03-04 · 395 mi
UA5520 covers more than one route in the data window — the stats below are for OKC → IAH, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
89%
Median delay
-4 min
90th percentile
+19 min
Cancellation rate
1%
How often is UA5520 on time?
Across 208 flights on OKC → IAH from 2025-07-01 to 2026-03-04, UA5520 arrived within 15 minutes of schedule 89% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +19 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 | 184 | 89% |
| 16-30 min | 6 | 3% |
| 31-60 min | 4 | 2% |
| 61-120 min | 6 | 3% |
| 2+ hrs | 6 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 94% | +9 min |
| 2025-08 | 31 | 84% | +4 min |
| 2025-09 | 30 | 93% | +2 min |
| 2025-10 | 25 | 92% | +5 min |
| 2025-12 | 29 | 83% | +14 min |
| 2026-01 | 29 | 83% | +6 min |
| 2026-02 | 27 | 96% | -14 min |
| 2026-03 | 4 | 100% | -14 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 29 | 90% |
| Tue | 30 | 87% |
| Wed | 30 | 100% |
| Thu | 30 | 87% |
| Fri | 30 | 87% |
| Sat | 29 | 93% |
| Sun | 28 | 82% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…