Flight OddsIAD → DTW Delta Air Lines
Delta Air Lines · Washington, DC to Detroit, MI · 1,172 flights, 2025-07-01 to 2026-06-30 · aggregated across 34 flight numbers
On-time arrival
78%
Median delay
-9 min
90th percentile
+76 min
Cancellation rate
2%
How on-time is Delta Air Lines from IAD to DTW?
Across every Delta Air Lines flight number on IAD → DTW (1,172 flights, 2025-07-01 to 2026-06-30), 78% arrived within 15 minutes of schedule. Median arrival delay -9 min; the worst 10% ran +76 min or later. 2% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 902 | 78% |
| 16-30 min | 53 | 5% |
| 31-60 min | 60 | 5% |
| 61-120 min | 64 | 6% |
| 2+ hrs | 73 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 113 | 68% | +36 min |
| 2025-08 | 113 | 84% | +9 min |
| 2025-09 | 106 | 94% | -11 min |
| 2025-10 | 116 | 91% | -5 min |
| 2025-11 | 88 | 80% | +3 min |
| 2025-12 | 86 | 52% | +78 min |
| 2026-01 | 86 | 60% | +30 min |
| 2026-02 | 83 | 71% | +23 min |
| 2026-03 | 91 | 69% | +38 min |
| 2026-04 | 90 | 86% | +1 min |
| 2026-05 | 92 | 93% | +4 min |
| 2026-06 | 88 | 83% | +2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 165 | 76% |
| Tue | 170 | 78% |
| Wed | 166 | 80% |
| Thu | 165 | 83% |
| Fri | 167 | 78% |
| Sat | 156 | 79% |
| Sun | 163 | 75% |
DL flight numbers on IAD → DTW
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…