Delta Air Lines Salt Lake City, UT (SLC) to Boston, MA (BOS) reliability

Among 1,083 scheduled Delta Air Lines flights from SLC to BOS, 82.2% arrived on time, 9.7% arrived at least 30 minutes late, and 1.3% 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

82.2%arrived on time

9.7%30+ min late

1.3%cancelled

1,083scheduled flights

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

30+ minutes late9.7%

60+ minutes late5.5%

Cancelled1.3%

Average arrival-1.0 mincompleted flights

What did Delta Air Lines SLC to BOS record?

Delta Air Lines completed 98.6% of its scheduled reportable SLC to BOS flights in the observation window. 82.2% of all scheduled flights arrived less than 15 minutes late, while 5.5% arrived at least an hour late.

What were Delta Air Lines SLC to BOS disruption rates?

For Delta Air Lines SLC-to-BOS flights, 9.7% arrived at least 30 minutes late, 1.3% were cancelled, and 0.1% were diverted.

Compare all airlines on this route

What was the Delta Air Lines SLC to BOS scheduled cohort?

The Delta Air Lines SLC-to-BOS cohort contained 1,083 scheduled flights; 1,068 completed, 14 were cancelled, and 1 were diverted.

Not a prediction.

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