$124 Find Cheap United Airlines Flights from Boston to San Diego

When to Book Flights with United Airlines from Boston to San Diego

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

  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 27 days before departure.

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

  With an average price of $440 return, United Airlines 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 United Airlines flight from Boston to San Diego?

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

• Does United Airlines fly direct to San Diego from Boston?

  Yes, United Airlines does offer direct flights for the route, with around 3 flights per week.

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

  On average, the cheapest day of the week to fly from Boston to San Diego with United Airlines is Tuesday, when prices are around $128. The most expensive day is generally Saturday, where the average price is around $223.

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

  The cheapest month for United Airlines flights to San Diego from Boston is generally March, where plane tickets cost $179 on average. If possible, try to avoid the most expensive months of December and October, where tickets cost $273 and $285 respectively.