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

Alaska Airlines Seattle, WA (SEA) to Houston, TX (IAH) reliability

Among 852 scheduled Alaska Airlines flights from SEA to IAH, 73.6% arrived on time, 15.0% arrived at least 30 minutes late, and 0.7% 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
73.6%arrived on time
15.0%30+ min late
0.7%cancelled
852scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late15.0%
60+ minutes late4.3%
Cancelled0.7%
Average arrival+4.9 mincompleted flights

What did Alaska Airlines SEA to IAH record?

Alaska Airlines completed 99.1% of its scheduled reportable SEA to IAH flights in the observation window. 73.6% of all scheduled flights arrived less than 15 minutes late, while 4.3% arrived at least an hour late.

What were Alaska Airlines SEA to IAH disruption rates?

For Alaska Airlines SEA-to-IAH flights, 15.0% arrived at least 30 minutes late, 0.7% were cancelled, and 0.2% were diverted.

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What was the Alaska Airlines SEA to IAH scheduled cohort?

The Alaska Airlines SEA-to-IAH cohort contained 852 scheduled flights; 844 completed, 6 were cancelled, and 2 were diverted.

Not a prediction.

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