Route · ASE → ORD · 2020–2025 BTS data
Aspen to Chicago
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), ASE to ORD (Aspen to Chicago) ranks #2418 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 71.7%
- On-time
- -7.3 pts
- vs US avg
- 105 min
- Delay when late
- 5,187
- Flights
- #2418 of 4927
- Corpus placement
Cancelled
5.4%
Best Month
Oct 2024 84%
Worst Month
Dec 2025 50%
Distance
1,013 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 112 | 56 | 1 | 0 | OO |
| Oct 2025 | 56 | 16 | 0 | 3 | OO |
| Sep 2025 | 90 | 22 | 0 | 0 | OO |
| Aug 2025 | 75 | 26 | 3 | 1 | OO |
| Jul 2025 | 62 | 30 | 8 | 1 | OO |
| Jun 2025 | 54 | 25 | 3 | 2 | OO |
| Apr 2025 | 53 | 18 | 5 | 0 | OO |
| Mar 2025 | 176 | 73 | 14 | 3 | OO |
| Feb 2025 | 133 | 48 | 10 | 2 | OO |
| Jan 2025 | 143 | 53 | 5 | 0 | OO |
| Dec 2024 | 90 | 31 | 9 | 1 | OO |
| Oct 2024 | 58 | 9 | 0 | 0 | OO |
| Sep 2024 | 86 | 23 | 0 | 2 | OO |
| Aug 2024 | 71 | 22 | 0 | 4 | OO |
| Jul 2024 | 62 | 14 | 1 | 0 | OO |
| Jun 2024 | 82 | 19 | 4 | 6 | OO |
| Apr 2024 | 59 | 14 | 4 | 2 | OO |
| Mar 2024 | 176 | 62 | 19 | 2 | OO |
| Feb 2024 | 141 | 40 | 9 | 1 | OO |
| Jan 2024 | 150 | 47 | 19 | 0 | OO |
| Dec 2023 | 81 | 24 | 2 | 0 | OO |
| Oct 2023 | 33 | 7 | 1 | 4 | OO |
| Sep 2023 | 60 | 11 | 0 | 0 | OO |
| Aug 2023 | 62 | 11 | 0 | 3 | OO |
ASE–ORD seasonal on-time pattern
Best: November (93.3%) · weakest: December (64.0%)
Strongest calendar month
November
93.3% on-time · ~30 flights/mo
Busiest calendar month
March
~163 flights/mo avg
Weakest calendar month
December
64.0% on-time · ~103 flights/mo
Cancellation Rate
5.4%
117 of 2,165 flights
Diversion Rate
1.7%
37 of 2,165 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
ASE - Aspen
Full on-time, delay-cause, and seasonal performance for Aspen, CO.
ASE on-time profileORD - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
ORD on-time profileCompare the two airports
See ASE and ORD side by side on delays, cancellations, and reliability.
Compare ASE vs ORDOrigin-hub reliability standing
Softer reliability from ASE
Among 7 routes leaving ASE, only 6 (including this one) clear below 75% on-time, while 0 stay ≥85% and 1 sit mid-band. Travelers comparing ASE options should weigh this 71.7% print against those peers · fleet on-time rank #4773 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to ASE–ORD.
Routes with a similar on-time rate
What the Data Says About ASE to ORD
On-time performance on the ASE to ORD pairing (Aspen to Chicago) trails a chunk of the network: 71.7% of 5,187 tracked flights arrived on schedule, with a 104.7-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 5.4% (117 of 2,165 flights), with 1.7% diverted.
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 84% on-time, while Dec 2025 came in at just 50% - a 35-point swing worth factoring into travel timing.
On the multi-year calendar, ASE–ORD peaks in November at 93.3% on-time while March carries the heaviest traffic (~163 flights per month) ; the softest month is December at 64.0%, a 29.3-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does ASE to ORD rank among US routes by traffic? ▼
How often are flights delayed from ASE to ORD? ▼
What is the cancellation rate for ASE to ORD? ▼
How far is the flight from ASE to ORD? ▼
When is the best time to fly from ASE to ORD? ▼
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 ASE–ORD data
ASE–ORD sits 7.3 pts below the national 79% average; check the seasonal chart and airport profiles before treating the headline as typical.
- Compare ASE and ORD airport profiles: delay causes and top routes differ even on the same corridor. ASE airport
- If your dates flex, November (93.3% on-time) beats December (64.0%) on this corridor. Seasonal chart
- 4 other routes post a similar 71.7% 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.