Route
ASE → SFO
Aspen-Pitkin County Airport (Sardy Field) San Francisco International Airport
848 miles
Return route SFO → ASE →
Alerts at ASE and SFO
How punctual is this route?
- On-time arrivals
- 57.0%
- Less than 15 minutes late
- Cancelled
- 5.6%
- Of scheduled flights
- Average delay when late
- 90 min
- Flights arriving 15+ minutes late
- Flights tracked
- 373
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 46%
- Late-arriving aircraft 25%
- Airline (crew, maintenance, cleaning) 15%
- Extreme weather 14%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 91.7% | 24 |
| December 2025 | 48.1% | 28 |
| January 2026 | 78.6% | 62 |
| February 2026 | 57.8% | 72 |
| March 2026 | 80.7% | 61 |
| April 2026 | 55.6% | 12 |
| May 2026 | 50.0% | 10 |
| June 2026 | 20.7% | 30 |
| July 2026 | 30.0% | 40 |
| August 2026 | 27.3% | 34 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| SkyWest Airlines | 373 | 57.0% | 5.6% | 90 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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