Flight OddsSEA → ORD Alaska Airlines
Alaska Airlines · Seattle, WA to Chicago, IL · 1,794 flights, 2025-07-01 to 2026-06-30 · aggregated across 24 flight numbers
On-time arrival
73%
Median delay
-2 min
90th percentile
+47 min
Cancellation rate
1%
How on-time is Alaska Airlines from SEA to ORD?
Across every Alaska Airlines flight number on SEA → ORD (1,794 flights, 2025-07-01 to 2026-06-30), 73% arrived within 15 minutes of schedule. Median arrival delay -2 min; the worst 10% ran +47 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 1,288 | 73% |
| 16-30 min | 190 | 11% |
| 31-60 min | 160 | 9% |
| 61-120 min | 81 | 5% |
| 2+ hrs | 42 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 208 | 57% | +18 min |
| 2025-08 | 195 | 56% | +19 min |
| 2025-09 | 178 | 79% | +4 min |
| 2025-10 | 150 | 73% | +11 min |
| 2025-11 | 117 | 74% | +14 min |
| 2025-12 | 137 | 74% | +0 min |
| 2026-01 | 97 | 71% | +12 min |
| 2026-02 | 90 | 94% | -10 min |
| 2026-03 | 109 | 82% | -2 min |
| 2026-04 | 121 | 86% | -3 min |
| 2026-05 | 171 | 84% | -2 min |
| 2026-06 | 188 | 69% | +17 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 262 | 68% |
| Tue | 258 | 82% |
| Wed | 246 | 79% |
| Thu | 253 | 70% |
| Fri | 261 | 72% |
| Sat | 232 | 75% |
| Sun | 249 | 66% |
AS flight numbers on SEA → ORD
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…