Flight OddsCHS → SEA Alaska Airlines
Alaska Airlines · Charleston, SC to Seattle, WA · 347 flights, 2025-07-01 to 2026-06-30 · aggregated across 4 flight numbers
On-time arrival
72%
Median delay
+3 min
90th percentile
+34 min
Cancellation rate
1%
How on-time is Alaska Airlines from CHS to SEA?
Across every Alaska Airlines flight number on CHS → SEA (347 flights, 2025-07-01 to 2026-06-30), 72% arrived within 15 minutes of schedule. Median arrival delay +3 min; the worst 10% ran +34 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 249 | 72% |
| 16-30 min | 52 | 15% |
| 31-60 min | 25 | 7% |
| 61-120 min | 14 | 4% |
| 2+ hrs | 4 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 53% | +24 min |
| 2025-08 | 31 | 71% | +10 min |
| 2025-09 | 30 | 87% | +4 min |
| 2025-10 | 29 | 69% | +10 min |
| 2025-11 | 23 | 70% | +5 min |
| 2025-12 | 31 | 55% | +16 min |
| 2026-01 | 24 | 67% | +4 min |
| 2026-02 | 25 | 84% | -2 min |
| 2026-03 | 31 | 74% | +3 min |
| 2026-04 | 30 | 77% | +3 min |
| 2026-05 | 30 | 80% | +2 min |
| 2026-06 | 30 | 83% | +9 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 52 | 65% |
| Tue | 43 | 74% |
| Wed | 52 | 73% |
| Thu | 50 | 68% |
| Fri | 52 | 77% |
| Sat | 43 | 81% |
| Sun | 52 | 69% |
AS flight numbers on CHS → SEA
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…