3 airlines fly nonstop from Denver to San Francisco.
Checking today’s fares with the airlines.
| Airline | From | To |
|---|---|---|
| Frontier Airlines | DEN Denver International Airport | SFO San Francisco International Airport |
| Southwest Airlines | DEN Denver International Airport | SFO San Francisco International Airport |
| United Airlines | DEN Denver International Airport | SFO San Francisco International Airport |
Nonstop service as of October 2026. Airlines change schedules seasonally.
12 miles (19 km) from the city centre. 54.5 million passengers in 2025
| How | Route | Time | Cost |
|---|---|---|---|
| Train | BART Yellow or Red Line from the International Terminal to downtown San Francisco stations | about 30m | regular BART fare plus a $5.51 airport surcharge |
Domestic travel within the United States: no passport or visa is needed, but adults must show a REAL ID-compliant license or another accepted ID at airport security.
San Francisco is 1 hour behind Denver. San Francisco uses the US dollar (USD).
Read the San Francisco guide: when to go, weather, airports and tips
Nonstop flight times vary by airline and season; flights with a connection take longer.
As of October 2026, Frontier Airlines, Southwest Airlines and United Airlines fly this route nonstop.
About 948 miles (1,525 km), measured between the city centres.
San Francisco is 1 hour behind Denver.
Domestic travel within the United States: no passport or visa is needed, but adults must show a REAL ID-compliant license or another accepted ID at airport security.
BART Yellow or Red Line from the International Terminal to downtown San Francisco stations, about 30 minutes, regular BART fare plus a $5.51 airport surcharge.
Information checked in October 2026. Schedules, fares and entry rules change, so confirm with the airline or the official source before you travel.