$79 Find Cheap Southwest Flights from Denver to San Francisco

When to Book Flights with Southwest from Denver to San Francisco

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

  Generally, when trying to get a below average price for your ticket, try to book around 17 days before departure. For the cheapest possible price, our data suggests booking 46 days before departure.

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

  With an average price of $255 return, Southwest is not the cheapest airline to fly from Denver to San Francisco with. Instead, for the lowest price, our data suggests flying with Frontier, where a return flight costs $167 on average.

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

  In the last 3 days, the lowest price for a flight with Southwest from Denver to San Francisco was $104 for a return flight and $66 for a one-way flight.

• Does Southwest fly direct to San Francisco from Denver?

  Yes, Southwest does offer direct flights for the route, with around 21 flights per week.

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

  On average, the cheapest day of the week to fly from Denver to San Francisco with Southwest is Monday, when prices are around $70. The most expensive day is generally Saturday, where the average price is around $106.

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

  The cheapest month for Southwest flights to San Francisco from Denver is generally October, where plane tickets cost $134 on average. If possible, try to avoid the most expensive months of December and July, where tickets cost $209 and $238 respectively.