Flight OddsUA4020 DTW → IAH
United Airlines · Detroit, MI to Houston, TX · 61 flights observed, 2026-01-08 to 2026-03-28 · 1,075 mi
UA4020 covers more than one route in the data window — the stats below are for DTW → IAH, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
84%
Median delay
-13 min
90th percentile
+74 min
Cancellation rate
0%
How often is UA4020 on time?
Across 61 flights on DTW → IAH from 2026-01-08 to 2026-03-28, UA4020 arrived within 15 minutes of schedule 84% of the time. The median arrival delay was -13 min, and the worst 10% of flights arrived +74 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 | 51 | 84% |
| 16-30 min | 1 | 2% |
| 31-60 min | 2 | 3% |
| 61-120 min | 4 | 7% |
| 2+ hrs | 3 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 13 | 85% | -1 min |
| 2026-02 | 21 | 90% | -11 min |
| 2026-03 | 27 | 78% | +14 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 11 | 64% |
| Tue | 3 | 100% |
| Wed | 6 | 83% |
| Thu | 12 | 100% |
| Fri | 12 | 100% |
| Sat | 7 | 71% |
| Sun | 10 | 70% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…