Delta Air Lines departures from St. Louis, MO (STL)

Among 5,323 scheduled Delta Air Lines flights departing STL, 86.4% arrived on time, 8.3% arrived at least 30 minutes late, and 1.6% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Origin and marketing-carrier cohort · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable

86.4%arrived on time

8.3%30+ min late

1.6%cancelled

5,323scheduled flights

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

30+ minutes late8.3%

60+ minutes late5.0%

Cancelled1.6%

Diverted0.2%

What does the Delta Air Lines STL sample show?

Delta Air Lines completed 98.2% of its scheduled departures from STL; 5.0% arrived at least one hour late and 0.2% were diverted.

What were Delta Air Lines at STL disruption rates?

For Delta Air Lines departures from STL, 8.3% arrived at least 30 minutes late, 1.6% were cancelled, and 0.2% were diverted.

Compare all airlines at STL

How large was the Delta Air Lines cohort at STL?

The Delta Air Lines cohort at STL contained 5,323 scheduled flights, including 5,229 completed flights, 83 cancellations, and 11 diversions.