Flight OddsUA1538 MIA → IAD
United Airlines · Miami, FL to Washington, DC · 91 flights observed, 2026-02-12 to 2026-05-20 · 922 mi
UA1538 covers more than one route in the data window — the stats below are for MIA → IAD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
78%
Median delay
-9 min
90th percentile
+53 min
Cancellation rate
0%
How often is UA1538 on time?
Across 91 flights on MIA → IAD from 2026-02-12 to 2026-05-20, UA1538 arrived within 15 minutes of schedule 78% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +53 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 | 71 | 78% |
| 16-30 min | 3 | 3% |
| 31-60 min | 10 | 11% |
| 61-120 min | 4 | 4% |
| 2+ hrs | 3 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-02 | 17 | 82% | +3 min |
| 2026-03 | 31 | 58% | +36 min |
| 2026-04 | 29 | 93% | -11 min |
| 2026-05 | 14 | 86% | -6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 11 | 73% |
| Tue | 11 | 91% |
| Wed | 14 | 71% |
| Thu | 14 | 93% |
| Fri | 14 | 71% |
| Sat | 14 | 93% |
| Sun | 13 | 54% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…