Delta Air Lines Seattle, WA (SEA) to New York, NY (JFK) reliability

Among 1,337 scheduled Delta Air Lines flights from SEA to JFK, 76.7% arrived on time, 11.5% arrived at least 30 minutes late, and 2.4% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Marketing carrier: Delta Air Lines (DL) · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable

76.7%arrived on time

11.5%30+ min late

2.4%cancelled

1,337scheduled flights

Based on July 2025–June 2026; on time means arrival less than 15 minutes late.

30+ minutes late11.5%

60+ minutes late6.2%

Cancelled2.4%

Average arrival+5.0 mincompleted flights

What did Delta Air Lines SEA to JFK record?

Delta Air Lines completed 96.4% of its scheduled reportable SEA to JFK flights in the observation window. 76.7% of all scheduled flights arrived less than 15 minutes late, while 6.2% arrived at least an hour late.

What were Delta Air Lines SEA to JFK disruption rates?

For Delta Air Lines SEA-to-JFK flights, 11.5% arrived at least 30 minutes late, 2.4% were cancelled, and 1.2% were diverted.

Compare all airlines on this route

What was the Delta Air Lines SEA to JFK scheduled cohort?

The Delta Air Lines SEA-to-JFK cohort contained 1,337 scheduled flights; 1,289 completed, 32 were cancelled, and 16 were diverted.

Not a prediction.

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