Flight OddsAS406 IAD → SEA
Alaska Airlines · Washington, DC to Seattle, WA · 117 flights observed, 2025-07-01 to 2026-03-16 · 2,305 mi
AS406 covers more than one route in the data window — the stats below are for IAD → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
67%
Median delay
+3 min
90th percentile
+94 min
Cancellation rate
3%
How often is AS406 on time?
Across 117 flights on IAD → SEA from 2025-07-01 to 2026-03-16, AS406 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was +3 min, and the worst 10% of flights arrived +94 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 76 | 67% |
| 16-30 min | 10 | 9% |
| 31-60 min | 13 | 11% |
| 61-120 min | 7 | 6% |
| 2+ hrs | 8 | 7% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 40% | +59 min |
| 2025-08 | 19 | 63% | +15 min |
| 2025-10 | 11 | 73% | +16 min |
| 2026-01 | 24 | 88% | +4 min |
| 2026-02 | 20 | 80% | -3 min |
| 2026-03 | 10 | 70% | +13 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 20 | 60% |
| Tue | 13 | 62% |
| Wed | 13 | 69% |
| Thu | 19 | 84% |
| Fri | 19 | 68% |
| Sat | 12 | 58% |
| Sun | 18 | 61% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…