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

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

Among 729 scheduled Alaska Airlines flights from SEA to DCA, 74.3% arrived on time, 15.9% 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
74.3%arrived on time
15.9%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 late15.9%
60+ minutes late7.4%
Cancelled1.1%
Average arrival-0.1 mincompleted flights

What did Alaska Airlines SEA to DCA record?

Alaska Airlines completed 97.3% of its scheduled reportable SEA to DCA flights in the observation window. 74.3% of all scheduled flights arrived less than 15 minutes late, while 7.4% arrived at least an hour late.

What were Alaska Airlines SEA to DCA disruption rates?

For Alaska Airlines SEA-to-DCA flights, 15.9% arrived at least 30 minutes late, 1.1% were cancelled, and 1.6% were diverted.

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What was the Alaska Airlines SEA to DCA scheduled cohort?

The Alaska Airlines SEA-to-DCA cohort contained 729 scheduled flights; 709 completed, 8 were cancelled, and 12 were diverted.

Not a prediction.

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