BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
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AIRLINE × ROUTE REPORT
MIA→SEA

Alaska Airlines Miami, FL (MIA) to Seattle, WA (SEA) reliability

Among 392 scheduled Alaska Airlines flights from MIA to SEA, 64.0% arrived on time, 19.9% arrived at least 30 minutes late, and 1.5% 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 SIGNALVariable
64.0%arrived on time
19.9%30+ min late
1.5%cancelled
392scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late19.9%
60+ minutes late8.9%
Cancelled1.5%
Average arrival+10.5 mincompleted flights

What did Alaska Airlines MIA to SEA record?

Alaska Airlines completed 98.0% of its scheduled reportable MIA to SEA flights in the observation window. 64.0% of all scheduled flights arrived less than 15 minutes late, while 8.9% arrived at least an hour late.

What were Alaska Airlines MIA to SEA disruption rates?

For Alaska Airlines MIA-to-SEA flights, 19.9% arrived at least 30 minutes late, 1.5% were cancelled, and 0.5% were diverted.

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What was the Alaska Airlines MIA to SEA scheduled cohort?

The Alaska Airlines MIA-to-SEA cohort contained 392 scheduled flights; 384 completed, 6 were cancelled, and 2 were diverted.

Not a prediction.

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