COS to ATL flight delays
Colorado Springs, CO (COS) Atlanta, GA (ATL) · 1,184 miles
584 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
90.11%
Arrived on time
Within 15 minutes of schedule
1.88%
Cancelled
Share of scheduled flights
89 min
When late, late by
Average across delayed arrivals
9 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The shape of the lateness matters here. Flights on this route are not late often, but when they are late they are late by about 89 minutes — long enough to lose a connection or an evening. The on-time percentage looks reassuring and understates the consequence of being on the wrong flight.
The two directions do not behave alike. ATL to COS arrives on time 9.5 points less often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.
Flights from Colorado Springs to Atlanta are among the most dependable in the record. A route this punctual is usually a short hop between airports with slots to spare.
This route does better than its own airport. Departures from COS overall run 10.1 points less punctual than this particular one — so whatever congestion COS has, this route is largely escaping it.
Which airline should you fly on this route?
Over January 2025 – August 2026, Delta Air Lines arrived on time most often on COS to ATL. Flights ran closest to schedule in October and worst in January.
Every airline on COS to ATL
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Delta Air Lines | 584 | 90.11% | 1.88% | 89 min | A |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
ATL to COS Atlanta back to Colorado Springs 80.66% on time COther routes from Colorado Springs
Common questions
Are flights from Colorado Springs to Atlanta usually delayed?
90.11% of flights on the COS to ATL route arrived within 15 minutes of schedule, so roughly 1 in every ten arrived late. That is better than the average route in this record.
Which airlines fly from Colorado Springs to Atlanta?
Only Delta Air Lines appears in the published record on this route, with 584 flights and 90.11% arriving on time.
How often are COS to ATL flights cancelled?
1.88% of scheduled flights did not operate — about 19 in every thousand. That is in the normal range.
What is the best month to fly Colorado Springs to Atlanta?
October, when 98.1% of flights arrived on time. The worst was January at 82.1%.
When COS to ATL flights are late, how late are they?
About 89 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on COS to ATL during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →