Flight OddsUA1183 BOS → IAH
United Airlines · Boston, MA to Houston, TX · 102 flights observed, 2025-12-18 to 2026-06-30 · 1,597 mi
UA1183 covers more than one route in the data window — the stats below are for BOS → IAH, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
74%
Median delay
-5 min
90th percentile
+73 min
Cancellation rate
1%
How often is UA1183 on time?
Across 102 flights on BOS → IAH from 2025-12-18 to 2026-06-30, UA1183 arrived within 15 minutes of schedule 74% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +73 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 | 75 | 74% |
| 16-30 min | 8 | 8% |
| 31-60 min | 5 | 5% |
| 61-120 min | 8 | 8% |
| 2+ hrs | 5 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 14 | 86% | -8 min |
| 2026-01 | 5 | 100% | -37 min |
| 2026-02 | 16 | 81% | -8 min |
| 2026-03 | 4 | 100% | -7 min |
| 2026-04 | 1 | 100% | +9 min |
| 2026-05 | 31 | 58% | +25 min |
| 2026-06 | 30 | 73% | +29 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 14 | 71% |
| Tue | 14 | 93% |
| Wed | 13 | 77% |
| Thu | 15 | 87% |
| Fri | 15 | 33% |
| Sat | 15 | 80% |
| Sun | 15 | 80% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…