PDX → SEA: cancellations & delays
Over Jan 2023 - Apr 2026, 0.8% of Portland International Airport (PDX) to Seattle–Tacoma International Airport (SEA) flights were cancelled and 13.6% arrived at least 15 minutes late, across 18,281 flights, flown by OO, AS, DL. Cancellations peak in January.
Check today's live PDX departures →Airport pages: Portland International Airport (PDX) · 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.