Direct (nonstop) flights from San Francisco to Aspen
1 airline flys nonstop from San Francisco International (SFO) to Aspen Pitkin County Sardy Field (ASE). It's 848 miles (1,365 km), about 2h 30m in the air. Operated by United Airlines.
United Airlines
Route data last updated: May 29, 2026
Airlines with non-stop flights
UA
United Airlines
Alternative Routes
Other ways to fly from San Francisco to Aspen with one stop · direct emits 157 kg CO₂ per passenger
Looking for the return flight?
ASE → SFO: Flights from Aspen to San FranciscoOther direct flights from San Francisco
Direct flights from Aspen (ASE)
Frequently Asked Questions
How long is the direct flight from San Francisco to Aspen?
A nonstop flight from San Francisco (SFO) to Aspen (ASE) takes approximately 2 hours and 30 minutes. The distance is 848 miles (1,365 km).
Which airlines fly nonstop from San Francisco to Aspen?
Just United Airlines.
Is there a nonstop flight from San Francisco to Aspen?
Yes. 1 airline: United Airlines.
How far is San Francisco from Aspen?
The flight distance from San Francisco to Aspen is 848 miles (1,365 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as London to Madrid.
What type of aircraft flies from San Francisco to Aspen?
At 2h 30m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from San Francisco to Aspen?
Roughly 157 kg CO2 per passenger one-way. That's about the same as driving 785 km.
Is the return flight from Aspen to San Francisco also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from San Francisco to Aspen?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at San Francisco International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.