Flight OddsDL4038 IAD → DTW
Delta Air Lines · Washington, DC to Detroit, MI · 83 flights observed, 2025-07-06 to 2025-10-27 · 383 mi
DL4038 covers more than one route in the data window — the stats below are for IAD → DTW, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
88%
Median delay
-11 min
90th percentile
+20 min
Cancellation rate
0%
How often is DL4038 on time?
Across 83 flights on IAD → DTW from 2025-07-06 to 2025-10-27, DL4038 arrived within 15 minutes of schedule 88% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +20 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 | 73 | 88% |
| 16-30 min | 2 | 2% |
| 31-60 min | 3 | 4% |
| 61-120 min | 1 | 1% |
| 2+ hrs | 4 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 23 | 74% | +21 min |
| 2025-08 | 20 | 85% | +39 min |
| 2025-09 | 17 | 100% | -18 min |
| 2025-10 | 23 | 96% | -10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 14 | 86% |
| Tue | 13 | 69% |
| Wed | 13 | 100% |
| Thu | 14 | 93% |
| Fri | 14 | 93% |
| Sat | No data | — |
| Sun | 15 | 87% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…