Cheap flights from Boston to San Diego from R2 149

The month of January is, on average, the cheapest month to fly to San Diego from Boston, with most prices found around R5 165. The month of May is another great option to travel to San Diego, with average flight prices from Boston averaging around R5 715.

Fly from Boston Logan Intl to San Diego for the best Boston Logan Intl - San Diego flight prices

You are more likely to see cheaper flights to San Diego from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around R6 349 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Boston for as low as R5 715 on momondo.

There is only 1 cabin class available to choose from on Boston to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Historically, on average around 19% of flights between Boston and San Diego have experienced a delay on any given week. The average delay length over the past 12 months has been 159 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, JetBlue have had the fewest delays on this route over the last 12 months, with about 15% of their flights experiencing any sort of delay.

As of October 2026, there are 4 flights per day flying from Boston to San Diego. The most common time of day flights depart is 18:00, with 35% of flights taking off at midday.

31 flights are operational weekly from Boston to San Diego as of October 2026. The most popular departure day for this route is Thu, with 42% of flights per week taking off on this day.