Delta Air Lines Detroit, MI (DTW) to Philadelphia, PA (PHL) reliability

Among 1,557 scheduled Delta Air Lines flights from DTW to PHL, 78.5% arrived on time, 13.9% arrived at least 30 minutes late, and 2.1% 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 SIGNALGenerally reliable

78.5%arrived on time

13.9%30+ min late

2.1%cancelled

1,557scheduled flights

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

30+ minutes late13.9%

60+ minutes late8.5%

Cancelled2.1%

Average arrival+6.0 mincompleted flights

What did Delta Air Lines DTW to PHL record?

Delta Air Lines completed 97.9% of its scheduled reportable DTW to PHL flights in the observation window. 78.5% of all scheduled flights arrived less than 15 minutes late, while 8.5% arrived at least an hour late.

What were Delta Air Lines DTW to PHL disruption rates?

For Delta Air Lines DTW-to-PHL flights, 13.9% arrived at least 30 minutes late, 2.1% were cancelled, and 0.0% were diverted.

Compare all airlines on this route

What was the Delta Air Lines DTW to PHL scheduled cohort?

The Delta Air Lines DTW-to-PHL cohort contained 1,557 scheduled flights; 1,525 completed, 32 were cancelled, and 0 were diverted.

Not a prediction.

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