Route · ASE → SFO · 2020–2025 BTS data
Aspen to San Francisco
The ASE–SFO corridor (Aspen, CO → San Francisco, CA) runs behind the national average, served by 1 carrier across roughly 848 miles.
Data updated 2026-06-13
- 72.1%
- On-time
- -6.9 pts
- vs US avg
- 107 min
- Delay when late
- 1,521
- Flights
Cancelled
8.9%
Best Month
Jan 2022 87%
Worst Month
Mar 2024 39%
Distance
848 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Aug 2025 | 37 | 9 | 0 | 0 | OO |
| Jul 2025 | 39 | 14 | 2 | 0 | OO |
| Jun 2025 | 31 | 10 | 0 | 0 | OO |
| Mar 2025 | 85 | 27 | 9 | 0 | OO |
| Feb 2025 | 67 | 18 | 10 | 0 | OO |
| Jan 2025 | 62 | 14 | 2 | 0 | OO |
| Dec 2024 | 32 | 14 | 3 | 0 | OO |
| Aug 2024 | 31 | 9 | 0 | 1 | OO |
| Jul 2024 | 31 | 4 | 1 | 1 | OO |
| Jun 2024 | 30 | 8 | 2 | 0 | OO |
| Mar 2024 | 61 | 37 | 3 | 1 | OO |
| Feb 2024 | 58 | 30 | 7 | 0 | OO |
| Jan 2024 | 62 | 20 | 4 | 0 | OO |
| Aug 2023 | 31 | 7 | 0 | 2 | OO |
| Jul 2023 | 31 | 9 | 0 | 0 | OO |
| Mar 2023 | 56 | 23 | 7 | 0 | OO |
| Feb 2023 | 56 | 18 | 5 | 0 | OO |
| Jan 2023 | 62 | 19 | 12 | 0 | OO |
| Dec 2022 | 34 | 15 | 4 | 0 | OO |
| Aug 2022 | 31 | 7 | 1 | 0 | OO |
| Jul 2022 | 31 | 2 | 0 | 0 | OO |
| Mar 2022 | 57 | 11 | 10 | 0 | OO |
| Feb 2022 | 56 | 11 | 10 | 0 | OO |
| Jan 2022 | 62 | 8 | 9 | 0 | OO |
Cancellation Rate
8.9%
101 of 1,133 flights
Diversion Rate
0.4%
5 of 1,133 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.
Origin airport →SFO - San Francisco
Full on-time, delay-cause, and seasonal performance for San Francisco, CA.
Destination airport →Compare the two airports
See ASE and SFO side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to ASE–SFO.
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What the Data Says About ASE to SFO
On-time performance on the ASE to SFO pairing (Aspen to San Francisco) trails a chunk of the network: 72.1% of 1,521 tracked flights arrived on schedule, with a 107.4-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 8.9% (101 of 1,133 flights), with 0.4% diverted.
The monthly split is wide on this route: Jan 2022 posted the strongest performance at 87% on-time, while Mar 2024 came in at just 39% - a 48-point swing worth factoring into travel timing.
Frequently Asked Questions
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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.