Route · IAH → ASE · 2020–2025 BTS data
Houston to Aspen
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), IAH to ASE (Houston to Aspen) ranks #3255 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 68.7%
- On-time
- -10.3 pts
- vs US avg
- 90 min
- Delay when late
- 3,118
- Flights
- #3255 of 4927
- Corpus placement
Cancelled
4.8%
Best Month
Aug 2023 77%
Worst Month
Mar 2023 57%
Distance
913 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 70 | 20 | 1 | 4 | OO |
| Sep 2025 | 30 | 5 | 0 | 0 | OO |
| Aug 2025 | 48 | 17 | 1 | 2 | OO |
| Jul 2025 | 61 | 18 | 3 | 8 | OO |
| Jun 2025 | 34 | 14 | 1 | 5 | OO |
| Mar 2025 | 89 | 24 | 7 | 5 | OO |
| Feb 2025 | 80 | 24 | 6 | 3 | OO |
| Jan 2025 | 95 | 29 | 8 | 3 | OO |
| Dec 2024 | 69 | 17 | 10 | 6 | OO |
| Nov 2024 | 30 | 2 | 1 | 2 | OO |
| Oct 2024 | 31 | 1 | 0 | 1 | OO |
| Sep 2024 | 36 | 8 | 0 | 1 | OO |
| Aug 2024 | 52 | 13 | 0 | 1 | OO |
| Jul 2024 | 61 | 22 | 5 | 0 | OO |
| Jun 2024 | 60 | 23 | 4 | 0 | OO |
| Mar 2024 | 93 | 31 | 6 | 6 | OO |
| Feb 2024 | 87 | 30 | 4 | 6 | OO |
| Jan 2024 | 101 | 31 | 8 | 6 | OO |
| Dec 2023 | 56 | 21 | 1 | 1 | OO |
| Sep 2023 | 38 | 10 | 0 | 1 | OO |
| Aug 2023 | 62 | 14 | 0 | 1 | OO |
| Jul 2023 | 62 | 17 | 0 | 0 | OO |
| Jun 2023 | 46 | 19 | 2 | 0 | OO |
| Mar 2023 | 87 | 37 | 3 | 7 | OO |
IAH–ASE seasonal on-time pattern
Best: October (96.8%) · weakest: December (61.2%)
Strongest calendar month
October
96.8% on-time · ~31 flights/mo
Busiest calendar month
January
~96 flights/mo avg
Weakest calendar month
December
61.2% on-time · ~68 flights/mo
Cancellation Rate
4.8%
71 of 1,478 flights
Diversion Rate
4.7%
69 of 1,478 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
IAH - Houston
Full on-time, delay-cause, and seasonal performance for Houston, TX.
IAH on-time profileASE - Aspen
Full on-time, delay-cause, and seasonal performance for Aspen, CO.
ASE on-time profileCompare the two airports
See IAH and ASE side by side on delays, cancellations, and reliability.
Compare IAH vs ASEOrigin-hub reliability standing
Softer reliability from IAH
Among 102 routes leaving IAH, only 6 (including this one) clear below 75% on-time, while 17 stay ≥85% and 79 sit mid-band. Travelers comparing IAH options should weigh this 68.7% print against those peers · fleet on-time rank #4860 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to IAH–ASE.
Routes with a similar on-time rate
What the Data Says About IAH to ASE
On-time performance on the IAH to ASE pairing (Houston to Aspen) trails a chunk of the network: 68.7% of 3,118 tracked flights arrived on schedule, with a 90.4-minute average delay on the ones that ran late. The route spans about 913 miles across 1 carrier. Cancellations over the trailing 24 months hit 4.8% (71 of 1,478 flights), with 4.7% diverted.
The monthly split is wide on this route: Aug 2023 posted the strongest performance at 77% on-time, while Mar 2023 came in at just 57% - a 20-point swing worth factoring into travel timing.
On the multi-year calendar, IAH–ASE peaks in October at 96.8% on-time while January carries the heaviest traffic (~96 flights per month) ; the softest month is December at 61.2%, a 35.6-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does IAH to ASE rank among US routes by traffic? ▼
How often are flights delayed from IAH to ASE? ▼
What is the cancellation rate for IAH to ASE? ▼
How far is the flight from IAH to ASE? ▼
When is the best time to fly from IAH to ASE? ▼
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 IAH–ASE data
IAH–ASE sits 10.3 pts below the national 79% average; check the seasonal chart and airport profiles before treating the headline as typical.
- Compare IAH and ASE airport profiles: delay causes and top routes differ even on the same corridor. IAH airport
- If your dates flex, October (96.8% on-time) beats December (61.2%) on this corridor. Seasonal chart
- 4 other routes post a similar 68.7% 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.