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

Alaska Airlines Seattle, WA (SEA) to Charleston, SC (CHS) reliability

Among 347 scheduled Alaska Airlines flights from SEA to CHS, 84.4% arrived on time, 8.4% arrived at least 30 minutes late, and 0.3% 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 SIGNALLower disruption
84.4%arrived on time
8.4%30+ min late
0.3%cancelled
347scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late8.4%
60+ minutes late2.9%
Cancelled0.3%
Average arrival-5.2 mincompleted flights

What did Alaska Airlines SEA to CHS record?

Alaska Airlines completed 99.4% of its scheduled reportable SEA to CHS flights in the observation window. 84.4% of all scheduled flights arrived less than 15 minutes late, while 2.9% arrived at least an hour late.

What were Alaska Airlines SEA to CHS disruption rates?

For Alaska Airlines SEA-to-CHS flights, 8.4% arrived at least 30 minutes late, 0.3% were cancelled, and 0.3% were diverted.

Compare all airlines on this route

What was the Alaska Airlines SEA to CHS scheduled cohort?

The Alaska Airlines SEA-to-CHS cohort contained 347 scheduled flights; 345 completed, 1 were cancelled, and 1 were diverted.

Not a prediction.

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