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

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

Among 391 scheduled Alaska Airlines flights from SEA to MIA, 77.7% arrived on time, 10.0% arrived at least 30 minutes late, and 0.8% 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
77.7%arrived on time
10.0%30+ min late
0.8%cancelled
391scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late10.0%
60+ minutes late2.8%
Cancelled0.8%
Average arrival-2.4 mincompleted flights

What did Alaska Airlines SEA to MIA record?

Alaska Airlines completed 98.7% of its scheduled reportable SEA to MIA flights in the observation window. 77.7% of all scheduled flights arrived less than 15 minutes late, while 2.8% arrived at least an hour late.

What were Alaska Airlines SEA to MIA disruption rates?

For Alaska Airlines SEA-to-MIA flights, 10.0% arrived at least 30 minutes late, 0.8% were cancelled, and 0.5% were diverted.

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What was the Alaska Airlines SEA to MIA scheduled cohort?

The Alaska Airlines SEA-to-MIA cohort contained 391 scheduled flights; 386 completed, 3 were cancelled, and 2 were diverted.

Not a prediction.

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