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Route Reliability

Atlanta → Colorado Springs

ATL–COS · 1,184 miles · Hartsfield–Jackson Atlanta International Airport to Colorado Springs Airport

80
Pretty Reliable
WanderNerd Reliability Score
79%
Arrive within 15 minutes
6 min
Average arrival delay
1.7%
Cancelled
578
Flights in the data

Data through May 2026.

Delta Air Lines is the only airline in this data on this route, arriving on time 79% of the time across 578 flights. No comparison to make.

What the data says

Morning-you made the right choice.

ATL–COS flights departing between 9 AM–12 PM arrived on time 86% of the time, versus 71% between 6–9 PM.

Saturdays have been rough.

ATL–COS flights arrived on time 87% of the time on Thursdays and just 70% on Saturdays. That gap is worth planning around.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon74%(85 flights)
  • Tue80%(83 flights)
  • Wed85%(86 flights)
  • Thu87%(85 flights)
  • Fri83%(86 flights)
  • Sat70%(54 flights)
  • Sun71%(89 flights)
On-time by departure window
  • 9 AM–12 PM86%(263 flights)
  • 12–3 PM82%(54 flights)
  • 3–6 PM—(7 flights)
  • 6–9 PM71%(244 flights)
On-time trend by month
81%
May

Jun 63% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202563%54
July 202570%56
August 202576%54
September 202594%49
October 202585%53
November 202582%50
December 202584%31
January 202669%29
February 202689%28
March 202684%51
April 202675%55
May 202681%58

Keep nerding

Based on 578 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.