Route · SFO → ASE · 2020–2025 BTS data
San Francisco to Aspen
The SFO–ASE corridor (San Francisco, CA → Aspen, CO) runs behind the national average, served by 1 carrier across roughly 848 miles.
Data updated 2026-06-13
- 72.9%
- On-time
- -6.1 pts
- vs US avg
- 109 min
- Delay when late
- 1,523
- Flights
Cancelled
5.3%
Best Month
Feb 2022 82%
Worst Month
Feb 2024 62%
Distance
848 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Aug 2025 | 37 | 11 | 0 | 0 | OO |
| Jul 2025 | 39 | 13 | 1 | 0 | OO |
| Jun 2025 | 32 | 4 | 0 | 2 | OO |
| Mar 2025 | 85 | 21 | 5 | 5 | OO |
| Feb 2025 | 68 | 19 | 5 | 1 | OO |
| Jan 2025 | 62 | 17 | 1 | 1 | OO |
| Dec 2024 | 33 | 19 | 1 | 1 | OO |
| Aug 2024 | 31 | 11 | 0 | 0 | OO |
| Jul 2024 | 31 | 10 | 1 | 0 | OO |
| Jun 2024 | 30 | 12 | 2 | 0 | OO |
| Mar 2024 | 62 | 22 | 5 | 2 | OO |
| Feb 2024 | 58 | 22 | 4 | 4 | OO |
| Jan 2024 | 62 | 19 | 2 | 3 | OO |
| Aug 2023 | 31 | 2 | 0 | 0 | OO |
| Jul 2023 | 31 | 6 | 0 | 0 | OO |
| Mar 2023 | 57 | 12 | 2 | 7 | OO |
| Feb 2023 | 56 | 18 | 6 | 3 | OO |
| Jan 2023 | 62 | 21 | 9 | 3 | OO |
| Dec 2022 | 34 | 20 | 2 | 0 | OO |
| Aug 2022 | 31 | 3 | 1 | 0 | OO |
| Jul 2022 | 31 | 4 | 0 | 0 | OO |
| Mar 2022 | 56 | 14 | 3 | 4 | OO |
| Feb 2022 | 56 | 10 | 5 | 5 | OO |
| Jan 2022 | 61 | 14 | 5 | 5 | OO |
Cancellation Rate
5.3%
60 of 1,136 flights
Diversion Rate
4.0%
46 of 1,136 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SFO - San Francisco
Full on-time, delay-cause, and seasonal performance for San Francisco, CA.
Origin airport →ASE - Aspen
Full on-time, delay-cause, and seasonal performance for Aspen, CO.
Destination airport →Compare the two airports
See SFO 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 SFO–ASE.
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What the Data Says About SFO to ASE
On-time performance on the SFO to ASE pairing (San Francisco to Aspen) trails a chunk of the network: 72.9% of 1,523 tracked flights arrived on schedule, with a 109.1-minute average delay on the ones that ran late. The route spans about 848 miles across 1 carrier. Cancellations over the trailing 24 months hit 5.3% (60 of 1,136 flights), with 4.0% diverted.
The monthly split is wide on this route: Feb 2022 posted the strongest performance at 82% on-time, while Feb 2024 came in at just 62% - a 20-point swing worth factoring into travel timing.
Frequently Asked Questions
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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.