ALW → SEA: cancellations & delays
Over Jan 2023 - Apr 2026, 3.5% of Walla Walla Regional Airport (ALW) to Seattle–Tacoma International Airport (SEA) flights were cancelled and 14.0% arrived at least 15 minutes late, across 887 flights, flown by OO. Cancellations peak in January.
Check today's live ALW departures →Airport pages: Walla Walla Regional Airport (ALW) · Seattle–Tacoma International Airport (SEA)
Rates are historical averages from U.S. DOT (BTS) on-time records; a specific flight's live estimate can differ with weather and the day's disruptions.