United Airlines flights from Denver to San Francisco (DEN - SFO)

• Can I get a flight from Denver to San Francisco on United Airlines for under $300?

  Cheapflights users have found 10 United Airlines flights for under $300 on the DEN-SFO route. Prices on flights to San Francisco from Denver can vary based on many factors including dates. To look at price based on your preferred dates, click here.

• How do most travelers feel about United Airlines?

  The general consensus from 4,132 Cheapflights users is that United Airlines is a 6.3/10. Select your travel dates above for updated prices on flights from Denver to San Francisco (DEN-SFO).

Currently, the most affordable month to book a United Airlines flight from Denver to San Francisco in September, with an average price of $268. Conversely, traveling with United Airlines from Denver to San Francisco in June will be the most expensive, with an average cost of $384. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).