Flight OddsSEA → IAD Alaska Airlines
Alaska Airlines · Seattle, WA to Washington, DC · 835 flights, 2025-07-01 to 2026-06-30 · aggregated across 10 flight numbers
On-time arrival
81%
Median delay
-6 min
90th percentile
+31 min
Cancellation rate
0%
How on-time is Alaska Airlines from SEA to IAD?
Across every Alaska Airlines flight number on SEA → IAD (835 flights, 2025-07-01 to 2026-06-30), 81% arrived within 15 minutes of schedule. Median arrival delay -6 min; the worst 10% ran +31 min or later. 0% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 675 | 81% |
| 16-30 min | 69 | 8% |
| 31-60 min | 58 | 7% |
| 61-120 min | 23 | 3% |
| 2+ hrs | 5 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 92 | 62% | +18 min |
| 2025-08 | 93 | 74% | +5 min |
| 2025-09 | 90 | 87% | -1 min |
| 2025-10 | 73 | 82% | -7 min |
| 2025-11 | 59 | 83% | -2 min |
| 2025-12 | 51 | 92% | -10 min |
| 2026-01 | 35 | 77% | +1 min |
| 2026-02 | 38 | 87% | -10 min |
| 2026-03 | 55 | 87% | -8 min |
| 2026-04 | 66 | 85% | -4 min |
| 2026-05 | 88 | 86% | -10 min |
| 2026-06 | 90 | 83% | +3 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 125 | 81% |
| Tue | 113 | 83% |
| Wed | 113 | 88% |
| Thu | 123 | 83% |
| Fri | 123 | 80% |
| Sat | 110 | 76% |
| Sun | 123 | 78% |
AS flight numbers on SEA → IAD
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…