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

Alaska Airlines Detroit, MI (DTW) to Seattle, WA (SEA) reliability

Among 541 scheduled Alaska Airlines flights from DTW to SEA, 74.5% arrived on time, 15.2% arrived at least 30 minutes late, and 0.4% 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
74.5%arrived on time
15.2%30+ min late
0.4%cancelled
541scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late15.2%
60+ minutes late5.9%
Cancelled0.4%
Average arrival+5.5 mincompleted flights

What did Alaska Airlines DTW to SEA record?

Alaska Airlines completed 99.4% of its scheduled reportable DTW to SEA flights in the observation window. 74.5% of all scheduled flights arrived less than 15 minutes late, while 5.9% arrived at least an hour late.

What were Alaska Airlines DTW to SEA disruption rates?

For Alaska Airlines DTW-to-SEA flights, 15.2% arrived at least 30 minutes late, 0.4% were cancelled, and 0.2% were diverted.

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What was the Alaska Airlines DTW to SEA scheduled cohort?

The Alaska Airlines DTW-to-SEA cohort contained 541 scheduled flights; 538 completed, 2 were cancelled, and 1 were diverted.

Not a prediction.

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