$119 Find Cheap Delta Flights from Boston to San Francisco

When to Book Flights with Delta from Boston to San Francisco

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

  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 90 days before departure.

• Is Delta the cheapest airline to fly with from Boston to San Francisco?

  With an average price of $365 return, Delta is not the cheapest airline to fly from Boston to San Francisco with. Instead, for the lowest price, our data suggests flying with Frontier, where a return flight costs $198 on average.

• What is the cheapest Delta flight from Boston to San Francisco?

  In the last 3 days, the lowest price for a flight with Delta from Boston to San Francisco was $227 for a return flight and $118 for a one-way flight.

• Does Delta fly direct to San Francisco from Boston?

  Yes, Delta does offer direct flights for the route, with around 13 flights per week.

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

  On average, the cheapest day of the week to fly from Boston to San Francisco with Delta is Tuesday, when prices are around $101. The most expensive day is generally Saturday, where the average price is around $135.

• What’s the cheapest month to fly from Boston to San Francisco with Delta?

  The cheapest month for Delta flights to San Francisco from Boston is generally March, where plane tickets cost $169 on average. If possible, try to avoid the most expensive months of April and December, where tickets cost $249 and $275 respectively.