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

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

Among 835 scheduled Alaska Airlines flights from SEA to IAD, 79.9% arrived on time, 11.0% 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
79.9%arrived on time
11.0%30+ min late
0.4%cancelled
835scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late11.0%
60+ minutes late3.4%
Cancelled0.4%
Average arrival-1.0 mincompleted flights

What did Alaska Airlines SEA to IAD record?

Alaska Airlines completed 99.4% of its scheduled reportable SEA to IAD flights in the observation window. 79.9% of all scheduled flights arrived less than 15 minutes late, while 3.4% arrived at least an hour late.

What were Alaska Airlines SEA to IAD disruption rates?

For Alaska Airlines SEA-to-IAD flights, 11.0% arrived at least 30 minutes late, 0.4% were cancelled, and 0.2% were diverted.

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What was the Alaska Airlines SEA to IAD scheduled cohort?

The Alaska Airlines SEA-to-IAD cohort contained 835 scheduled flights; 830 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.