Delta Air Lines Boise, ID (BOI) to Salt Lake City, UT (SLC) reliability

Among 1,223 scheduled Delta Air Lines flights from BOI to SLC, 89.2% arrived on time, 5.7% 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

89.2%arrived on time

5.7%30+ min late

1.3%cancelled

1,223scheduled flights

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

30+ minutes late5.7%

60+ minutes late3.4%

Cancelled1.3%

Average arrival-1.9 mincompleted flights

What did Delta Air Lines BOI to SLC record?

Delta Air Lines completed 98.5% of its scheduled reportable BOI to SLC flights in the observation window. 89.2% of all scheduled flights arrived less than 15 minutes late, while 3.4% arrived at least an hour late.

What were Delta Air Lines BOI to SLC disruption rates?

For Delta Air Lines BOI-to-SLC flights, 5.7% arrived at least 30 minutes late, 1.3% were cancelled, and 0.2% were diverted.

Compare all airlines on this route

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

The Delta Air Lines BOI-to-SLC cohort contained 1,223 scheduled flights; 1,205 completed, 16 were cancelled, and 2 were diverted.

Not a prediction.

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