Flight OddsDTW → SEA Delta Air Lines
Delta Air Lines · Detroit, MI to Seattle, WA · 1,535 flights, 2025-07-01 to 2026-06-30 · aggregated across 8 flight numbers
On-time arrival
74%
Median delay
-2 min
90th percentile
+43 min
Cancellation rate
1%
How on-time is Delta Air Lines from DTW to SEA?
Across every Delta Air Lines flight number on DTW → SEA (1,535 flights, 2025-07-01 to 2026-06-30), 74% arrived within 15 minutes of schedule. Median arrival delay -2 min; the worst 10% ran +43 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 1,117 | 74% |
| 16-30 min | 157 | 10% |
| 31-60 min | 149 | 10% |
| 61-120 min | 59 | 4% |
| 2+ hrs | 34 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 166 | 78% | +3 min |
| 2025-08 | 155 | 91% | -8 min |
| 2025-09 | 120 | 91% | -10 min |
| 2025-10 | 123 | 89% | -8 min |
| 2025-11 | 117 | 75% | +8 min |
| 2025-12 | 122 | 41% | +32 min |
| 2026-01 | 97 | 67% | +25 min |
| 2026-02 | 95 | 68% | +11 min |
| 2026-03 | 113 | 45% | +26 min |
| 2026-04 | 116 | 79% | 0 min |
| 2026-05 | 143 | 72% | +18 min |
| 2026-06 | 149 | 77% | +13 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 218 | 71% |
| Tue | 220 | 79% |
| Wed | 217 | 76% |
| Thu | 224 | 76% |
| Fri | 219 | 69% |
| Sat | 196 | 75% |
| Sun | 222 | 69% |
DL flight numbers on DTW → SEA
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…