AS603Phoenix to Seattle
Alaska Airlines flight AS603 flies from Phoenix Sky Harbor (PHX) to Seattle Tacoma (SEA), 1,782 km. Over August 2025 to July 2026 it usually arrives right on schedule: 88% of 346 flights arrived within 15 minutes of schedule and 0.9% were cancelled (US Department of Transportation data).
On-time record, last 12 months
Every operation of AS603, August 2025 to July 2026: 346 flights. Source: US Bureau of Transportation Statistics, public domain.
Routes flown as AS603
Other flights from Phoenix to Seattle
More about Phoenix Sky Harbor (PHX) and Seattle Tacoma (SEA).
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