$119 Find Cheap Delta Flights from Boston to San Diego

When to Book Flights with Delta from Boston to San Diego

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

  Generally, when trying to get a below average price for your ticket, try to book around 13 days before departure. For the cheapest possible price, our data suggests booking 52 days before departure.

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

  With an average price of $385 return, Delta is not the cheapest airline to fly from Boston to San Diego with. Instead, for the lowest price, our data suggests flying with Frontier, where a return flight costs $194 on average.

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

  In the last 3 days, the lowest price for a flight with Delta from Boston to San Diego was $146 for a return flight and $115 for a one-way flight.

• Does Delta fly direct to San Diego from Boston?

  Yes, Delta does offer direct flights for the route, with around 7 flights per week.

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

  On average, the cheapest day of the week to fly from Boston to San Diego with Delta is Tuesday, when prices are around $117. The most expensive day is generally Sunday, where the average price is around $146.

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

  The cheapest month for Delta flights to San Diego from Boston is generally January, where plane tickets cost $178 on average. If possible, try to avoid the most expensive months of April and December, where tickets cost $288 and $328 respectively.