$59 Find Cheap Southwest Flights from Denver to San Diego

When to Book Flights with Southwest from Denver to San Diego

• How far in advance should I book tickets for a flight with Southwest from Denver to San Diego?

  Generally, when trying to get a below average price for your ticket, try to book around 21 days before departure. For the cheapest possible price, our data suggests booking 48 days before departure.

• Is Southwest the cheapest airline to fly with from Denver to San Diego?

  With an average price of $266 return, Southwest is not the cheapest airline to fly from Denver to San Diego with. Instead, for the lowest price, our data suggests flying with Hawaiian Airlines, where a return flight costs $168 on average.

• What is the cheapest Southwest flight from Denver to San Diego?

  In the last 3 days, the lowest price for a flight with Southwest from Denver to San Diego was $63 for a return flight and $49 for a one-way flight.

• Does Southwest fly direct to San Diego from Denver?

  Yes, Southwest does offer direct flights for the route, with around 33 flights per week.

• What’s the cheapest day of the week to fly from Denver to San Diego with Southwest?

  On average, the cheapest day of the week to fly from Denver to San Diego with Southwest is Monday, when prices are around $58. The most expensive day is generally Saturday, where the average price is around $118.

• What’s the cheapest month to fly from Denver to San Diego with Southwest?

  The cheapest month for Southwest flights to San Diego from Denver is generally April, where plane tickets cost $132 on average. If possible, try to avoid the most expensive months of June and September, where tickets cost $268 and $277 respectively.