$62 Find Cheap Frontier Flights from Denver to San Diego

When to Book Flights with Frontier from Denver to San Diego

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

  Generally, when trying to get a below average price for your ticket, try to book around 14 days before departure. For the cheapest possible price, our data suggests booking 66 days before departure.

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

  Yes, based on our data, Frontier is the cheapest airline to fly the route with an average price of $147 return. The next cheapest options are Southwest and United Airlines, with return flights costing on average $272 and $305 respectively.

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

  In the last 3 days, the lowest price for a flight with Frontier from Denver to San Diego was $117 for a return flight and $69 for a one-way flight.

• Does Frontier fly direct to San Diego from Denver?

  Yes, Frontier does offer direct flights for the route, with around 3 flights per week.

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

  On average, the cheapest day of the week to fly from Denver to San Diego with Frontier is Monday, when prices are around $19. The most expensive day is generally Saturday, where the average price is around $48.

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

  The cheapest month for Frontier flights to San Diego from Denver is generally August, where plane tickets cost $84 on average. If possible, try to avoid the most expensive months of March and December, where tickets cost $119 and $143 respectively.