Flight OddsDCA → SEA Delta Air Lines
Delta Air Lines · Washington, DC to Seattle, WA · 365 flights, 2025-07-01 to 2026-06-30 · aggregated across 6 flight numbers
On-time arrival
67%
Median delay
-1 min
90th percentile
+84 min
Cancellation rate
3%
How on-time is Delta Air Lines from DCA to SEA?
Across every Delta Air Lines flight number on DCA → SEA (365 flights, 2025-07-01 to 2026-06-30), 67% arrived within 15 minutes of schedule. Median arrival delay -1 min; the worst 10% ran +84 min or later. 3% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 238 | 67% |
| 16-30 min | 33 | 9% |
| 31-60 min | 33 | 9% |
| 61-120 min | 22 | 6% |
| 2+ hrs | 28 | 8% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 29 | 55% | +44 min |
| 2025-08 | 30 | 77% | +25 min |
| 2025-09 | 30 | 63% | +27 min |
| 2025-10 | 31 | 84% | +1 min |
| 2025-11 | 30 | 57% | +38 min |
| 2025-12 | 29 | 48% | +40 min |
| 2026-01 | 30 | 80% | +4 min |
| 2026-02 | 27 | 70% | +13 min |
| 2026-03 | 28 | 50% | +30 min |
| 2026-04 | 30 | 73% | +29 min |
| 2026-05 | 31 | 74% | +6 min |
| 2026-06 | 29 | 72% | +23 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 50 | 62% |
| Tue | 53 | 62% |
| Wed | 51 | 65% |
| Thu | 49 | 59% |
| Fri | 51 | 75% |
| Sat | 52 | 79% |
| Sun | 48 | 69% |
DL flight numbers on DCA → SEA
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…