Flight history · Aug 2025 – Jul 2026 · US DOT on-time records

AS 519 · San Antonio (SAT) → Seattle (SEA)

Sold by Alaska. Still flying: 52 of the last 56 days (Daily).

Arrives on time83%within 15 minutes, of 82 flights
Cancelled1.2%of scheduled flights
An hour or more late5%of flights that operated
When late, on average71 minlate, among flights 15+ min late

Schedule

Typical times in the Jun 6 – Jul 31, 2026 schedule, local at each airport (Seattle is 2 h behind San Antonio).

Leaves SAT
07:02
Arrives SEA
09:25
Flight time
4h 23m
Days flown, last 8 weeks
52 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.

15+ min late17%
30+ min late11%
1h+ late5%
2h+ late2%
10%20%30% 015301h1h302h3h

Horizontal: minutes late at arrival (0 to 3 hours). Vertical: share of flights later than that.

Its hour at SAT

All flights leaving San Antonio (SAT) at 7–8 am, wherever they’re going: 92% left within 15 minutes and 1.0% were cancelled (3,803 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.