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

Alaska Airlines Newark, NJ (EWR) to Seattle, WA (SEA) reliability

Among 1,237 scheduled Alaska Airlines flights from EWR to SEA, 68.6% arrived on time, 18.2% arrived at least 30 minutes late, and 2.8% 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 SIGNALVariable
68.6%arrived on time
18.2%30+ min late
2.8%cancelled
1,237scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late18.2%
60+ minutes late8.8%
Cancelled2.8%
Average arrival+10.3 mincompleted flights

What did Alaska Airlines EWR to SEA record?

Alaska Airlines completed 97.1% of its scheduled reportable EWR to SEA flights in the observation window. 68.6% of all scheduled flights arrived less than 15 minutes late, while 8.8% arrived at least an hour late.

What were Alaska Airlines EWR to SEA disruption rates?

For Alaska Airlines EWR-to-SEA flights, 18.2% arrived at least 30 minutes late, 2.8% were cancelled, and 0.1% were diverted.

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What was the Alaska Airlines EWR to SEA scheduled cohort?

The Alaska Airlines EWR-to-SEA cohort contained 1,237 scheduled flights; 1,201 completed, 35 were cancelled, and 1 were diverted.

Not a prediction.

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