Flight OddsAS305 MIA → SEA
Alaska Airlines · Miami, FL to Seattle, WA · 257 flights observed, 2025-07-01 to 2026-06-30 · 2,724 mi
AS305 covers more than one route in the data window — the stats below are for MIA → 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
+55 min
Cancellation rate
2%
How often is AS305 on time?
Across 257 flights on MIA → SEA from 2025-07-01 to 2026-06-30, AS305 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was +3 min, and the worst 10% of flights arrived +55 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 167 | 67% |
| 16-30 min | 34 | 14% |
| 31-60 min | 28 | 11% |
| 61-120 min | 11 | 4% |
| 2+ hrs | 11 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 57% | +22 min |
| 2025-08 | 7 | 43% | +33 min |
| 2025-11 | 7 | 71% | +29 min |
| 2025-12 | 30 | 63% | +11 min |
| 2026-01 | 31 | 71% | +6 min |
| 2026-02 | 28 | 79% | +6 min |
| 2026-03 | 29 | 38% | +34 min |
| 2026-04 | 29 | 66% | +11 min |
| 2026-05 | 30 | 80% | -2 min |
| 2026-06 | 30 | 83% | -5 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 33 | 76% |
| Tue | 36 | 69% |
| Wed | 36 | 58% |
| Thu | 36 | 61% |
| Fri | 37 | 68% |
| Sat | 37 | 73% |
| Sun | 36 | 61% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…