Flight OddsJFK → SEA Delta Air Lines
Delta Air Lines · New York, NY to Seattle, WA · 1,338 flights, 2025-07-01 to 2026-06-30 · aggregated across 6 flight numbers
On-time arrival
74%
Median delay
-3 min
90th percentile
+42 min
Cancellation rate
2%
How on-time is Delta Air Lines from JFK to SEA?
Across every Delta Air Lines flight number on JFK → SEA (1,338 flights, 2025-07-01 to 2026-06-30), 74% arrived within 15 minutes of schedule. Median arrival delay -3 min; the worst 10% ran +42 min or later. 2% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 958 | 74% |
| 16-30 min | 140 | 11% |
| 31-60 min | 112 | 9% |
| 61-120 min | 56 | 4% |
| 2+ hrs | 33 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 121 | 77% | +7 min |
| 2025-08 | 123 | 87% | -12 min |
| 2025-09 | 119 | 87% | -13 min |
| 2025-10 | 123 | 78% | -2 min |
| 2025-11 | 116 | 71% | +11 min |
| 2025-12 | 97 | 40% | +32 min |
| 2026-01 | 87 | 71% | +8 min |
| 2026-02 | 77 | 75% | +6 min |
| 2026-03 | 89 | 54% | +20 min |
| 2026-04 | 108 | 79% | 0 min |
| 2026-05 | 120 | 78% | +7 min |
| 2026-06 | 119 | 76% | +16 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 186 | 73% |
| Tue | 191 | 76% |
| Wed | 187 | 76% |
| Thu | 186 | 70% |
| Fri | 184 | 74% |
| Sat | 183 | 77% |
| Sun | 182 | 69% |
DL flight numbers on JFK → SEA
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…