Flight OddsSEA → MIA Delta Air Lines
Delta Air Lines · Seattle, WA to Miami, FL · 365 flights, 2025-07-01 to 2026-06-30 · aggregated across 1 flight number
On-time arrival
79%
Median delay
-6 min
90th percentile
+37 min
Cancellation rate
1%
How on-time is Delta Air Lines from SEA to MIA?
Across every Delta Air Lines flight number on SEA → MIA (365 flights, 2025-07-01 to 2026-06-30), 79% arrived within 15 minutes of schedule. Median arrival delay -6 min; the worst 10% ran +37 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 284 | 79% |
| 16-30 min | 26 | 7% |
| 31-60 min | 28 | 8% |
| 61-120 min | 9 | 3% |
| 2+ hrs | 11 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 80% | 0 min |
| 2025-08 | 31 | 61% | +15 min |
| 2025-09 | 29 | 72% | +10 min |
| 2025-10 | 31 | 97% | -15 min |
| 2025-11 | 28 | 82% | -1 min |
| 2025-12 | 30 | 80% | -3 min |
| 2026-01 | 31 | 74% | +9 min |
| 2026-02 | 28 | 79% | +9 min |
| 2026-03 | 29 | 69% | +16 min |
| 2026-04 | 30 | 83% | -2 min |
| 2026-05 | 31 | 87% | -2 min |
| 2026-06 | 30 | 87% | +14 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 50 | 76% |
| Tue | 53 | 87% |
| Wed | 50 | 88% |
| Thu | 51 | 78% |
| Fri | 51 | 71% |
| Sat | 52 | 75% |
| Sun | 51 | 80% |
DL flight numbers on SEA → MIA
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…