BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
ATL→COS

Atlanta, GA (ATL) to Colorado Springs, CO (COS) flight delay odds

79.3% of 584 official scheduled ATL-to-COS flights arrived on time; 11.1% arrived at least 30 minutes late and 1.7% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable
79.3%arrived on time
11.1%30+ min late
1.7%cancelled
584scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.8%all scheduled flights
120+ minutes late1.4%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+3.7 mincompleted flights

Which departure time was most reliable for ATL to COS?

Among qualifying ATL-to-COS departure window results, Late morning had the highest on-time rate: 82.4% of 296 flights. Evening was lowest at 75.2% across 254 flights.

Departure windowFlightsOn time30+ minCancelled
Late morning29682.4%8.8%2.4%
Evening25475.2%13.8%1.2%

Which weekday was most reliable for ATL to COS?

Among qualifying ATL-to-COS weekday results, Wednesday had the highest on-time rate: 85.1% of 87 flights. Sunday was lowest at 69.7% across 89 flights.

DayFlightsOn time30+ minCancelled
Monday8674.4%16.3%1.2%
Tuesday8780.5%10.3%1.1%
Wednesday8785.1%4.6%0.0%
Thursday8785.1%5.7%2.3%
Friday8884.1%5.7%2.3%
Saturday6075.0%13.3%3.3%
Sunday8969.7%22.5%2.2%

Which airline was most reliable for ATL to COS?

Only Delta Air Lines met the ATL-to-COS airline threshold: 79.3% of 584 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines58479.3%11.1%1.7%

Which month was most reliable for ATL to COS?

Among qualifying ATL-to-COS month results, September 2025 had the highest on-time rate: 93.9% of 49 flights. January 2026 was lowest at 64.5% across 31 flights.

MonthFlightsOn time30+ minCancelled
July 20255766.7%21.1%1.8%
August 20255475.9%16.7%0.0%
September 20254993.9%2.0%0.0%
October 20255481.5%3.7%1.9%
November 20255278.8%7.7%3.8%
December 20253281.2%9.4%3.1%
January 20263164.5%22.6%6.5%
February 20262882.1%7.1%0.0%
March 20265282.7%13.5%1.9%
April 20265673.2%14.3%1.8%
May 20265979.7%10.2%1.7%
June 20266088.3%6.7%0.0%

What drove ATL to COS delay minutes?

Airline was the largest recorded ATL-to-COS delay category, accounting for 57.2% of 6,018 BTS-attributed delay minutes during July 2025–June 2026.

Airline57.2%
Late aircraft18.2%
National airspace17.9%
Weather6.7%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.