Flight OddsDEN → SEA Delta Air Lines
Delta Air Lines · Denver, CO to Seattle, WA · 1,088 flights, 2025-07-01 to 2026-06-30 · aggregated across 14 flight numbers
On-time arrival
79%
Median delay
-7 min
90th percentile
+48 min
Cancellation rate
1%
How on-time is Delta Air Lines from DEN to SEA?
Across every Delta Air Lines flight number on DEN → SEA (1,088 flights, 2025-07-01 to 2026-06-30), 79% arrived within 15 minutes of schedule. Median arrival delay -7 min; the worst 10% ran +48 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 855 | 79% |
| 16-30 min | 76 | 7% |
| 31-60 min | 66 | 6% |
| 61-120 min | 40 | 4% |
| 2+ hrs | 42 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 92 | 70% | +22 min |
| 2025-08 | 93 | 77% | +11 min |
| 2025-09 | 90 | 83% | -5 min |
| 2025-10 | 92 | 84% | +10 min |
| 2025-11 | 87 | 85% | +1 min |
| 2025-12 | 87 | 60% | +47 min |
| 2026-01 | 92 | 89% | -2 min |
| 2026-02 | 84 | 80% | +1 min |
| 2026-03 | 91 | 77% | +9 min |
| 2026-04 | 90 | 83% | +1 min |
| 2026-05 | 93 | 78% | +7 min |
| 2026-06 | 88 | 84% | +7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 153 | 80% |
| Tue | 158 | 80% |
| Wed | 153 | 83% |
| Thu | 153 | 75% |
| Fri | 153 | 77% |
| Sat | 153 | 83% |
| Sun | 156 | 76% |
DL flight numbers on DEN → SEA
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…