ORD → SEA Alaska Airlines

Alaska Airlines · Chicago, IL to Seattle, WA · 1,799 flights, 2025-07-01 to 2026-06-30 · aggregated across 22 flight numbers

On-time arrival
68%
Median delay
+1 min
90th percentile
+58 min
Cancellation rate
2%

How on-time is Alaska Airlines from ORD to SEA?

Across every Alaska Airlines flight number on ORD → SEA (1,799 flights, 2025-07-01 to 2026-06-30), 68% arrived within 15 minutes of schedule. Median arrival delay +1 min; the worst 10% ran +58 min or later. 2% were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time1,20468%
16-30 min20912%
31-60 min17910%
61-120 min1136%
2+ hrs593%

Performance by month

MonthFlightsOn-timeAvg delay
2025-0720865%+14 min
2025-0819770%+9 min
2025-0917681%+3 min
2025-1014964%+14 min
2025-1111557%+34 min
2025-1213649%+27 min
2026-019765%+20 min
2026-029182%-2 min
2026-0311159%+36 min
2026-0412477%+10 min
2026-0517281%+2 min
2026-0618864%+19 min

Performance by day of week

DayFlightsOn-time
Mon26368%
Tue25668%
Wed24671%
Thu25768%
Fri26266%
Sat22971%
Sun25166%

Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…