United Airlines flights from Washington, D.C. to San Francisco (WAS - SFO)

• Can I get a flight from Washington, D.C. to San Francisco on United Airlines for under $500?

  Cheapflights currently has 50 WAS-SFO flights for under $500. Flights to San Francisco will vary based on many factors, like date and time. Click here to find the best price for your dates on Cheapflights.

• How do most travelers feel about United Airlines?

  United Airlines has received a 6.3/10 rating from 4,132 Cheapflights user reviews. If you wish to plan your next trip from Washington, D.C. to San Francisco with United Airlines, enter your preferred travel dates above!

Currently, the most affordable month to book a United Airlines flight from Washington, D.C. to San Francisco in September, with an average price of $268. Conversely, traveling with United Airlines from Washington, D.C. 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).