Flight OddsORD → IAH United Airlines
United Airlines · Chicago, IL to Houston, TX · 4,000 flights, 2025-07-01 to 2026-06-30 · aggregated across 75 flight numbers
On-time arrival
79%
Median delay
-7 min
90th percentile
+45 min
Cancellation rate
1%
How on-time is United Airlines from ORD to IAH?
Across every United Airlines flight number on ORD → IAH (4,000 flights, 2025-07-01 to 2026-06-30), 79% arrived within 15 minutes of schedule. Median arrival delay -7 min; the worst 10% ran +45 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 3,136 | 79% |
| 16-30 min | 287 | 7% |
| 31-60 min | 251 | 6% |
| 61-120 min | 151 | 4% |
| 2+ hrs | 140 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 327 | 66% | +17 min |
| 2025-08 | 329 | 77% | +10 min |
| 2025-09 | 328 | 86% | -3 min |
| 2025-10 | 334 | 80% | +1 min |
| 2025-11 | 314 | 80% | +3 min |
| 2025-12 | 353 | 81% | 0 min |
| 2026-01 | 329 | 83% | -2 min |
| 2026-02 | 294 | 91% | -15 min |
| 2026-03 | 330 | 77% | +16 min |
| 2026-04 | 329 | 76% | +8 min |
| 2026-05 | 351 | 79% | +4 min |
| 2026-06 | 347 | 74% | +11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 566 | 78% |
| Tue | 558 | 83% |
| Wed | 558 | 82% |
| Thu | 576 | 81% |
| Fri | 574 | 76% |
| Sat | 551 | 78% |
| Sun | 582 | 75% |
UA flight numbers on ORD → IAH
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…