$88 Find Cheap Frontier Flights from San Diego to Portland

When to Book Flights with Frontier from San Diego to Portland

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

  Yes, based on our data, Frontier is the cheapest airline to fly the route with an average price of $121 return. The next cheapest options are Spirit Airlines and Alaska Airlines, with return flights costing on average $143 and $291 respectively.

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

  In the last 3 days, the lowest price for a flight with Frontier from San Diego to Portland was $177 for a return flight and $78 for a one-way flight.

• Does Frontier fly direct to Portland from San Diego?

  No, Frontier does not fly the route directly.

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

  On average, the cheapest day of the week to fly from San Diego to Portland with Frontier is Friday, when prices are around $46. The most expensive day is generally Thursday, where the average price is around $62.

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

  The cheapest month for Frontier flights to Portland from San Diego is generally January, where plane tickets cost $56 on average. If possible, try to avoid the most expensive months of April and July, where tickets cost $149 and $153 respectively.