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

Alaska Airlines Washington, DC (DCA) to Seattle, WA (SEA) reliability

Among 729 scheduled Alaska Airlines flights from DCA to SEA, 75.4% arrived on time, 14.0% arrived at least 30 minutes late, and 1.1% 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
75.4%arrived on time
14.0%30+ min late
1.1%cancelled
729scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late14.0%
60+ minutes late5.8%
Cancelled1.1%
Average arrival+2.5 mincompleted flights

What did Alaska Airlines DCA to SEA record?

Alaska Airlines completed 98.4% of its scheduled reportable DCA to SEA flights in the observation window. 75.4% of all scheduled flights arrived less than 15 minutes late, while 5.8% arrived at least an hour late.

What were Alaska Airlines DCA to SEA disruption rates?

For Alaska Airlines DCA-to-SEA flights, 14.0% arrived at least 30 minutes late, 1.1% were cancelled, and 0.5% were diverted.

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What was the Alaska Airlines DCA to SEA scheduled cohort?

The Alaska Airlines DCA-to-SEA cohort contained 729 scheduled flights; 717 completed, 8 were cancelled, and 4 were diverted.

Not a prediction.

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