Route · ORD → ASE · 2020–2025 BTS data
Chicago to Aspen
The ORD–ASE corridor (Chicago, IL → Aspen, CO) runs behind the national average, served by 1 carrier across roughly 1,013 miles.
Data updated 2026-06-13
- 70.7%
- On-time
- -8.3 pts
- vs US avg
- 95 min
- Delay when late
- 5,190
- Flights
Cancelled
2.4%
Best Month
Oct 2024 82%
Worst Month
Dec 2025 48%
Distance
1,013 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 114 | 59 | 0 | 6 | OO |
| Oct 2025 | 55 | 17 | 0 | 3 | OO |
| Sep 2025 | 90 | 16 | 0 | 0 | OO |
| Aug 2025 | 75 | 17 | 1 | 7 | OO |
| Jul 2025 | 62 | 19 | 2 | 10 | OO |
| Jun 2025 | 56 | 22 | 0 | 9 | OO |
| Apr 2025 | 52 | 10 | 2 | 5 | OO |
| Mar 2025 | 176 | 66 | 5 | 15 | OO |
| Feb 2025 | 132 | 65 | 8 | 8 | OO |
| Jan 2025 | 143 | 63 | 1 | 3 | OO |
| Dec 2024 | 91 | 44 | 3 | 7 | OO |
| Oct 2024 | 57 | 10 | 0 | 1 | OO |
| Sep 2024 | 86 | 16 | 0 | 1 | OO |
| Aug 2024 | 71 | 24 | 0 | 7 | OO |
| Jul 2024 | 62 | 15 | 1 | 2 | OO |
| Jun 2024 | 83 | 30 | 4 | 3 | OO |
| Apr 2024 | 58 | 13 | 3 | 3 | OO |
| Mar 2024 | 177 | 44 | 11 | 7 | OO |
| Feb 2024 | 141 | 41 | 2 | 9 | OO |
| Jan 2024 | 150 | 46 | 8 | 13 | OO |
| Dec 2023 | 82 | 22 | 1 | 2 | OO |
| Oct 2023 | 32 | 3 | 1 | 2 | OO |
| Sep 2023 | 60 | 21 | 0 | 3 | OO |
| Aug 2023 | 62 | 23 | 0 | 3 | OO |
Cancellation Rate
2.4%
53 of 2,167 flights
Diversion Rate
6.0%
129 of 2,167 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
ORD - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
Origin airport →ASE - Aspen
Full on-time, delay-cause, and seasonal performance for Aspen, CO.
Destination airport →Compare the two airports
See ORD and ASE side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to ORD–ASE.
Routes with a similar on-time rate
What the Data Says About ORD to ASE
On-time performance on the ORD to ASE pairing (Chicago to Aspen) trails a chunk of the network: 70.7% of 5,190 tracked flights arrived on schedule, with a 94.9-minute average delay on the ones that ran late. The route spans about 1,013 miles across 1 carrier. Cancellations over the trailing 24 months hit 2.4% (53 of 2,167 flights), with 6.0% diverted.
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 82% on-time, while Dec 2025 came in at just 48% - a 34-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from ORD to ASE? ▼
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Flight Guides
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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.