Route · COS → MDW · 2020–2025 BTS data
Colorado Springs to Chicago
The COS–MDW corridor (Colorado Springs, CO → Chicago, IL) runs ahead of the national average, served by 1 carrier across roughly 917 miles.
Data updated 2026-06-13
- 84.4%
- On-time
- +5.4 pts
- vs US avg
- 59 min
- Delay when late
- 1,804
- Flights
Cancelled
0.8%
Best Month
Jul 2024 85%
Worst Month
Jul 2025 74%
Distance
917 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Oct 2025 | 31 | 3 | 0 | 0 | WN |
| Sep 2025 | 30 | 4 | 0 | 0 | WN |
| Aug 2025 | 33 | 7 | 0 | 1 | WN |
| Jul 2025 | 54 | 14 | 0 | 2 | WN |
| Jun 2025 | 48 | 14 | 0 | 0 | WN |
| Dec 2024 | 31 | 6 | 1 | 0 | WN |
| Nov 2024 | 30 | 5 | 1 | 0 | WN |
| Oct 2024 | 31 | 0 | 0 | 0 | WN |
| Sep 2024 | 30 | 3 | 0 | 0 | WN |
| Aug 2024 | 33 | 7 | 0 | 0 | WN |
| Jul 2024 | 53 | 8 | 0 | 0 | WN |
| Jun 2024 | 49 | 9 | 0 | 0 | WN |
| May 2024 | 31 | 12 | 1 | 0 | WN |
| Jan 2024 | 31 | 6 | 1 | 0 | WN |
| Dec 2023 | 31 | 11 | 0 | 1 | WN |
| Nov 2023 | 30 | 8 | 0 | 0 | WN |
| Oct 2023 | 31 | 7 | 0 | 0 | WN |
| Sep 2023 | 30 | 5 | 0 | 0 | WN |
| Aug 2023 | 43 | 5 | 1 | 0 | WN |
| Jul 2023 | 55 | 13 | 1 | 0 | WN |
| Jun 2023 | 50 | 9 | 0 | 0 | WN |
| May 2023 | 31 | 1 | 0 | 0 | WN |
| Apr 2023 | 30 | 8 | 0 | 0 | WN |
| Mar 2023 | 31 | 3 | 1 | 0 | WN |
Cancellation Rate
0.8%
7 of 877 flights
Diversion Rate
0.5%
4 of 877 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
COS - Colorado Springs
Full on-time, delay-cause, and seasonal performance for Colorado Springs, CO.
Origin airport →MDW - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
Destination airport →Compare the two airports
See COS and MDW side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to COS–MDW.
Routes with a similar on-time rate
Routes of a similar trip length
What the Data Says About COS to MDW
Bureau of Transportation Statistics records show Colorado Springs to Chicago (COS to MDW) running a 84.4% on-time rate over 1,804 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 58.9 minutes. The 917-mile corridor is served by 1 carrier, and over the last 24 months 0.8% of 877 flights were cancelled, 0.5% diverted.
Monthly performance varies moderately here: Jul 2024 was the strongest month at 85% on-time versus Jul 2025 at 74%, a 11-point difference.
Frequently Asked Questions
How often are flights delayed from COS to MDW? ▼
What is the cancellation rate for COS to MDW? ▼
How far is the flight from COS to MDW? ▼
When is the best time to fly from COS to MDW? ▼
Flight Guides
Tips and data-driven advice for choosing reliable routes.
Explore PlainFlights
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.
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.