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

Delta Air Lines Colorado Springs, CO (COS) to Atlanta, GA (ATL) reliability

Among 584 scheduled Delta Air Lines flights from COS to ATL, 87.3% arrived on time, 6.7% arrived at least 30 minutes late, and 1.9% 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
87.3%arrived on time
6.7%30+ min late
1.9%cancelled
584scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
30+ minutes late6.7%
60+ minutes late3.6%
Cancelled1.9%
Average arrival-6.0 mincompleted flights

What did Delta Air Lines COS to ATL record?

Delta Air Lines completed 96.9% of its scheduled reportable COS to ATL flights in the observation window. 87.3% of all scheduled flights arrived less than 15 minutes late, while 3.6% arrived at least an hour late.

What were Delta Air Lines COS to ATL disruption rates?

For Delta Air Lines COS-to-ATL flights, 6.7% arrived at least 30 minutes late, 1.9% were cancelled, and 1.2% were diverted.

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What was the Delta Air Lines COS to ATL scheduled cohort?

The Delta Air Lines COS-to-ATL cohort contained 584 scheduled flights; 566 completed, 11 were cancelled, and 7 were diverted.

Not a prediction.

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