Flight OddsAS129 SEA → ANC
Alaska Airlines · Seattle, WA to Anchorage, AK · 75 flights observed, 2025-10-30 to 2026-04-21 · 1,448 mi
AS129 covers more than one route in the data window — the stats below are for SEA → ANC, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
76%
Median delay
+3 min
90th percentile
+35 min
Cancellation rate
1%
How often is AS129 on time?
Across 75 flights on SEA → ANC from 2025-10-30 to 2026-04-21, AS129 arrived within 15 minutes of schedule 76% of the time. The median arrival delay was +3 min, and the worst 10% of flights arrived +35 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 56 | 76% |
| 16-30 min | 9 | 12% |
| 31-60 min | 6 | 8% |
| 61-120 min | 3 | 4% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 1 | 100% | -22 min |
| 2025-11 | 3 | 67% | +6 min |
| 2025-12 | 29 | 55% | +19 min |
| 2026-01 | 6 | 83% | +9 min |
| 2026-03 | 14 | 93% | -2 min |
| 2026-04 | 21 | 90% | -4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 10 | 90% |
| Tue | 11 | 91% |
| Wed | 10 | 40% |
| Thu | 14 | 71% |
| Fri | 10 | 60% |
| Sat | 10 | 80% |
| Sun | 9 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…