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

Delta Air Lines San Diego, CA (SAN) to Seattle, WA (SEA) reliability

Among 1,700 scheduled Delta Air Lines flights from SAN to SEA, 86.3% arrived on time, 8.3% arrived at least 30 minutes late, and 1.1% 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 SIGNALLower disruption
86.3%arrived on time
8.3%30+ min late
1.1%cancelled
1,700scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late8.3%
60+ minutes late4.8%
Cancelled1.1%
Average arrival-3.4 mincompleted flights

What did Delta Air Lines SAN to SEA record?

Delta Air Lines completed 98.8% of its scheduled reportable SAN to SEA flights in the observation window. 86.3% of all scheduled flights arrived less than 15 minutes late, while 4.8% arrived at least an hour late.

What were Delta Air Lines SAN to SEA disruption rates?

For Delta Air Lines SAN-to-SEA flights, 8.3% arrived at least 30 minutes late, 1.1% were cancelled, and 0.1% were diverted.

Compare all airlines on this route

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

The Delta Air Lines SAN-to-SEA cohort contained 1,700 scheduled flights; 1,680 completed, 18 were cancelled, and 2 were diverted.

Not a prediction.

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