BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
AIRLINE × ROUTE REPORT
SLC→SEA

Alaska Airlines Salt Lake City, UT (SLC) to Seattle, WA (SEA) reliability

Among 1,369 scheduled Alaska Airlines flights from SLC to SEA, 75.3% arrived on time, 11.6% arrived at least 30 minutes late, and 1.8% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Marketing carrier: Alaska Airlines (AS) · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable
75.3%arrived on time
11.6%30+ min late
1.8%cancelled
1,369scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late11.6%
60+ minutes late4.0%
Cancelled1.8%
Average arrival+3.9 mincompleted flights

What did Alaska Airlines SLC to SEA record?

Alaska Airlines completed 98.2% of its scheduled reportable SLC to SEA flights in the observation window. 75.3% of all scheduled flights arrived less than 15 minutes late, while 4.0% arrived at least an hour late.

What were Alaska Airlines SLC to SEA disruption rates?

For Alaska Airlines SLC-to-SEA flights, 11.6% arrived at least 30 minutes late, 1.8% were cancelled, and 0.0% were diverted.

Compare all airlines on this route

What was the Alaska Airlines SLC to SEA scheduled cohort?

The Alaska Airlines SLC-to-SEA cohort contained 1,369 scheduled flights; 1,344 completed, 25 were cancelled, and 0 were diverted.

Not a prediction.

This is a descriptive historical rate. Schedule changes, seasonal operations and current conditions may differ.