$88 Find Cheap Frontier Flights from San Diego to Seattle

When to Book Flights with Frontier from San Diego to Seattle

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

  With an average price of $170 return, Frontier is not the cheapest airline to fly from San Diego to Seattle with. Instead, for the lowest price, our data suggests flying with Spirit Airlines, where a return flight costs $165 on average.

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

  In the last 3 days, the lowest price for a flight with Frontier from San Diego to Seattle was $167 for a return flight and $78 for a one-way flight.

• Does Frontier fly direct to Seattle 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 Seattle with Frontier?

  On average, the cheapest day of the week to fly from San Diego to Seattle with Frontier is Tuesday, when prices are around $48. The most expensive day is generally Sunday, where the average price is around $70.

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

  The cheapest month for Frontier flights to Seattle from San Diego is generally October, where plane tickets cost $77 on average. If possible, try to avoid the most expensive months of May and July, where tickets cost $164 and $184 respectively.