Flight history · Aug 2025 – Jul 2026 · US DOT on-time records
AS 603 · Phoenix (PHX) → Seattle (SEA)
Sold by Alaska. Still flying: 55 of the last 56 days (Daily).
Arrives on time89%within 15 minutes, of 346 flights
Cancelled0.9%of scheduled flights
An hour or more late3%of flights that operated
When late, on average91 minlate, among flights 15+ min late
Schedule
Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport.
- Leaves PHX
- 11:23
- Arrives SEA
- 14:30
- Flight time
- 3h 07m
- Days flown, last 8 weeks
- 55 of 56
Each square is a day, Sat Jun 6 to Fri Jul 31, two weeks per row (each column is the same weekday); filled = flew.
How late it arrives
Share of flights that operated arriving more than this late.
Horizontal: minutes late at arrival (0 to 3 hours). Vertical: share of flights later than that.
Its hour at PHX
All flights leaving Phoenix (PHX) at 11 am–12 pm, wherever they’re going: 79% left within 15 minutes and 0.9% were cancelled (11,917 flights in the year). Other Alaska flights on this route →
Upcoming forecasts
Our odds that this flight is late or cancelled on the days we publish.