$46 Find Cheap Frontier Flights from Portland to San Francisco

When to Book Flights with Frontier from Portland to San Francisco

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

  Generally, when trying to get a below average price for your ticket, try to book around 8 days before departure. For the cheapest possible price, our data suggests booking 36 days before departure.

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

  Yes, based on our data, Frontier is the cheapest airline to fly the route with an average price of $91 return. The next cheapest options are Spirit Airlines and Alaska Airlines, with return flights costing on average $96 and $218 respectively.

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

  In the last 3 days, the lowest price for a flight with Frontier from Portland to San Francisco was $167 for a return flight and $77 for a one-way flight.

• Does Frontier fly direct to San Francisco from Portland?

  No, Frontier does not fly the route directly.

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

  On average, the cheapest day of the week to fly from Portland to San Francisco with Frontier is Tuesday, when prices are around $16. The most expensive day is generally Saturday, where the average price is around $37.

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

  The cheapest month for Frontier flights to San Francisco from Portland is generally February, where plane tickets cost $37 on average. If possible, try to avoid the most expensive months of July and March, where tickets cost $89 and $132 respectively.