Flight OddsUA3521 DTW → IAD
United Airlines · Detroit, MI to Washington, DC · 7 flights observed, 2026-02-14 to 2026-02-28 · 383 mi
UA3521 covers more than one route in the data window — the stats below are for DTW → IAD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
100%
Median delay
-14 min
90th percentile
+3 min
Cancellation rate
0%
How often is UA3521 on time?
Across 7 flights on DTW → IAD from 2026-02-14 to 2026-02-28, UA3521 arrived within 15 minutes of schedule 100% of the time. The median arrival delay was -14 min, and the worst 10% of flights arrived +3 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 | 7 | 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 |
|---|---|---|---|
| 2026-02 | 7 | 100% | -14 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | No data | — |
| Tue | 1 | 100% |
| Wed | 1 | 100% |
| Thu | No data | — |
| Fri | No data | — |
| Sat | 3 | 100% |
| Sun | 2 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…