Route
SFO → ASE
San Francisco International Airport Aspen-Pitkin County Airport (Sardy Field)
848 miles
Return route ASE → SFO →
Alerts at SFO and ASE
How punctual is this route?
- On-time arrivals
- 67.7%
- Less than 15 minutes late
- Cancelled
- 2.4%
- Of scheduled flights
- Average delay when late
- 136 min
- Flights arriving 15+ minutes late
- Flights tracked
- 376
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 36%
- Airline (crew, maintenance, cleaning) 28%
- Late-arriving aircraft 24%
- Extreme weather 12%
- 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 | 91.3% | 24 |
| December 2025 | 44.4% | 29 |
| January 2026 | 77.6% | 62 |
| February 2026 | 64.5% | 72 |
| March 2026 | 84.5% | 62 |
| April 2026 | 77.8% | 12 |
| May 2026 | 54.5% | 11 |
| June 2026 | 50.0% | 30 |
| July 2026 | 59.5% | 39 |
| August 2026 | 55.9% | 35 |
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 | 376 | 67.7% | 2.4% | 136 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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