$39 Find Cheap Frontier Flights from San Francisco to Portland

When to Book Flights with Frontier from San Francisco to Portland

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

  Generally, when trying to get a below average price for your ticket, try to book around 19 days before departure. For the cheapest possible price, our data suggests booking 82 days before departure.

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

  With an average price of $112 return, Frontier is not the cheapest airline to fly from San Francisco to Portland with. Instead, for the lowest price, our data suggests flying with Spirit Airlines, where a return flight costs $87 on average.

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

  In the last 3 days, the lowest price for a flight with Frontier from San Francisco to Portland was $108 for a return flight and $63 for a one-way flight.

• Does Frontier fly direct to Portland from San Francisco?

  No, Frontier does not fly the route directly.

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

  On average, the cheapest day of the week to fly from San Francisco to Portland with Frontier is Tuesday, when prices are around $16. The most expensive day is generally Saturday, where the average price is around $28.

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

  The cheapest month for Frontier flights to Portland from San Francisco is generally February, where plane tickets cost $38 on average. If possible, try to avoid the most expensive months of April and March, where tickets cost $136 and $141 respectively.