United Airlines flights from Washington, D.C. to San Diego (WAS - SAN)

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

  There are 43 flights available on United Airlines from Washington, D.C. to San Diego for under $500. These prices can change based on many factors including date and time. To find WAS-SAN flight prices for your dates, click here.

• How do most travelers feel about United Airlines?

  4,123 Cheapflights users have left reviews for United Airlines and have rated the airline 6.2/10. If you are looking to travel from Washington, D.C. to San Diego on United Airlines, input your dates in the form above for our best prices!

Currently, the most affordable month to book a United Airlines flight from Washington, D.C. to San Diego in October, with an average price of $288. Conversely, traveling with United Airlines from Washington, D.C. to San Diego in June will be the most expensive, with an average cost of $364. 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 Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).