Cheap Flights from San Francisco to Denver
San Francisco (SFO) → Denver (DEN) · Flight time about 2 hr 30 min nonstop
Search SFO → DEN faresSan Francisco to Denver is a popular route for business travel, Rocky Mountain vacations and ski trips. Nonstop flights take about two and a half hours.
Denver International Airport is also a major connecting hub, so this route works well if you are heading on to other cities across the Mountain West and Midwest.
Route at a glance
- Departure airport: San Francisco International Airport (SFO)
- Arrival airport: Denver International Airport (DEN)
- Flight time: about 2 hr 30 min nonstop
- Support: 24/7 phone help from Search My Trip
Tips for cheap San Francisco to Denver flights
- Ski season (December–March) and summer are the busiest periods - book early for holiday and spring-break dates.
- Carrying skis or snowboards? Check each airline's sports-equipment fees before comparing fares.
- Allow extra time in winter; snow can cause delays at Denver.
- Midweek flights are usually cheaper than weekend departures.
Frequently asked questions
How long is the flight from San Francisco to Denver?
A nonstop SFO to DEN flight takes about 2 hours 30 minutes.
How far is Denver airport from downtown Denver?
Denver International Airport is about 25 miles from downtown. The A Line train connects the airport and Union Station in roughly 40 minutes.
When should I book flights to Denver for ski season?
For Christmas, New Year and spring-break dates, booking 2 to 3 months ahead is a good idea.
Is Search My Trip available 24/7?
Yes. Our travel experts are available by phone 24 hours a day, 7 days a week.
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