Flight OddsUA4031 IAH → BWI
United Airlines · Houston, TX to Baltimore, MD · 19 flights observed, 2025-10-27 to 2025-12-01 · 1,235 mi
UA4031 covers more than one route in the data window — the stats below are for IAH → BWI, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
100%
Median delay
-14 min
90th percentile
-5 min
Cancellation rate
16%
How often is UA4031 on time?
Across 19 flights on IAH → BWI from 2025-10-27 to 2025-12-01, UA4031 arrived within 15 minutes of schedule 100% of the time. The median arrival delay was -14 min, and the worst 10% of flights arrived -5 min or later. 16% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 16 | 100% |
| 16-30 min | 0 | 0% |
| 31-60 min | 0 | 0% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 4 | 100% | -15 min |
| 2025-11 | 11 | 100% | -13 min |
| 2025-12 | 1 | 100% | -15 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 100% |
| Tue | 1 | 100% |
| Wed | 5 | 100% |
| Thu | 3 | 100% |
| Fri | 3 | 100% |
| Sat | No data | — |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…