Route · ATL → COS · 2020–2025 BTS data
Atlanta to Colorado Springs
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), ATL to COS (Atlanta to Colorado Springs) ranks #4407 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 76.5%
- On-time
- -2.5 pts
- vs US avg
- 66 min
- Delay when late
- 1,128
- Flights
- #4407 of 4927
- Corpus placement
Cancelled
1.0%
Best Month
Oct 2025 83%
Worst Month
Jul 2024 56%
Distance
1,184 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 32 | 5 | 1 | 0 | DL |
| Nov 2025 | 52 | 9 | 2 | 0 | DL |
| Oct 2025 | 54 | 9 | 1 | 0 | DL |
| Sep 2025 | 49 | 3 | 0 | 0 | DL |
| Aug 2025 | 54 | 13 | 0 | 0 | DL |
| Jul 2025 | 57 | 18 | 1 | 0 | DL |
| Jun 2025 | 54 | 20 | 0 | 0 | DL |
| May 2025 | 47 | 8 | 0 | 0 | DL |
| Apr 2025 | 42 | 12 | 0 | 0 | DL |
| Mar 2025 | 41 | 9 | 0 | 0 | DL |
| Jan 2025 | 32 | 11 | 2 | 0 | DL |
| Dec 2024 | 33 | 4 | 0 | 0 | DL |
| Nov 2024 | 52 | 12 | 0 | 0 | DL |
| Oct 2024 | 51 | 9 | 0 | 0 | DL |
| Sep 2024 | 46 | 7 | 0 | 0 | DL |
| Aug 2024 | 40 | 11 | 0 | 0 | DL |
| Jul 2024 | 55 | 24 | 3 | 0 | DL |
| Jun 2024 | 30 | 8 | 0 | 0 | DL |
| May 2024 | 31 | 11 | 0 | 1 | DL |
| Apr 2024 | 30 | 5 | 0 | 0 | DL |
| Mar 2024 | 31 | 8 | 0 | 0 | DL |
| Jan 2024 | 31 | 7 | 0 | 0 | DL |
| Dec 2023 | 31 | 2 | 0 | 1 | DL |
| Nov 2023 | 30 | 5 | 0 | 0 | DL |
ATL–COS seasonal on-time pattern
Best: December (88.5%) · weakest: July (65.0%)
Strongest calendar month
December
88.5% on-time · ~32 flights/mo
Busiest calendar month
July
~48 flights/mo avg
Weakest calendar month
July
65.0% on-time · ~48 flights/mo
Cancellation Rate
1.0%
10 of 1,005 flights
Diversion Rate
0.2%
2 of 1,005 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
ATL - Atlanta
Full on-time, delay-cause, and seasonal performance for Atlanta, GA.
ATL on-time profileCOS - Colorado Springs
Full on-time, delay-cause, and seasonal performance for Colorado Springs, CO.
COS on-time profileCompare the two airports
See ATL and COS side by side on delays, cancellations, and reliability.
Compare ATL vs COSOrigin-hub reliability standing
Mid-pack among ATL departures
From ATL, this corridor sits with 75 other 75–85% on-time routes out of 144 tracked departures, not the hub's reliability leaders (67 at ≥85%) and not the softest ( 2 below 75%). Destination: Colorado Springs · fleet on-time rank #4199 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to ATL–COS.
Routes with a similar on-time rate
What the Data Says About ATL to COS
The Atlanta to Colorado Springs corridor (ATL to COS) posts a 76.5% on-time rate on the lower edge of the average band, based on 1,128 tracked flights. Late flights run 65.6 minutes behind on average. 1 carrier cover the 1,184-mile route; over the last 24 months, 10 of 1,005 flights were cancelled (1.0%) and 0.2% diverted.
The monthly split is wide on this route: Oct 2025 posted the strongest performance at 83% on-time, while Jul 2024 came in at just 56% - a 27-point swing worth factoring into travel timing.
On the multi-year calendar, ATL–COS peaks in December at 88.5% on-time while July carries the heaviest traffic (~48 flights per month) ; the softest month is July at 65.0%, a 23.5-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does ATL to COS rank among US routes by traffic? ▼
How often are flights delayed from ATL to COS? ▼
What is the cancellation rate for ATL to COS? ▼
How far is the flight from ATL to COS? ▼
When is the best time to fly from ATL to COS? ▼
Airports on this route
Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Using ATL–COS data
ATL–COS is mid-pack at 76.5% on-time; month and carrier mix move more than the corridor headline.
- Compare ATL and COS airport profiles: delay causes and top routes differ even on the same corridor. ATL airport
- If your dates flex, December (88.5% on-time) beats July (65.0%) on this corridor. Seasonal chart
- 4 other routes post a similar 76.5% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.