Find cheap United Airlines flights to San Diego from $59

When to book flights with United Airlines to San Diego

• Is United Airlines cheaper than other airlines flying to San Diego?

  With an average return price of $391, United Airlines is cheaper than Delta when it comes to flights to San Diego. However, the cheapest airline flying to San Diego is Frontier, with an average return price of $231.

• Which other airlines fly to San Diego?

  Along with United Airlines, you can also fly to San Diego with Southwest, Alaska Airlines, Alaska Airlines, American Airlines, Frontier, Delta, Delta, Breeze Airways and Breeze Airways.

• How much is a flight to San Diego with United Airlines?

  On average, United Airlines flights to San Diego cost $304 for one-way and $391 return.

• Which airport do United Airlines flights to San Diego fly into?

  You’ll fly into San Diego Airport when flying to San Diego with United Airlines.

• Are there any other airlines in Star Alliance that fly to San Diego?

  Unfortunately, there are no other airlines in Star Alliance that fly to San Diego.