£107 Find Cheap Flights from Boston to San Diego

The cheapest month for flights from Boston to San Diego is January, where tickets cost £247 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is £350 and £306 respectively.

To get a below average price on the flight from Boston to San Diego, you should book around 3 weeks before departure, which saves you about 48% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

In the past 3 days, the cheapest return tickets from Boston to San Diego were found on United Airlines (£181) and American Airlines (£184).

Boston and San Diego are connected by different airlines. The airlines that fly that route the most regularly are JetBlue (20 flights per week), Alaska Airlines (14 flights per week), and Southwest (7 flights per week).

Weekly flights between Boston and San Diego historically see delays in approximately 15% of cases, with the average delay over the past year being 160 minutes.

Typically, flights leaving at night tend to face fewer delays, whereas flights in the evening have historically encountered delays more often.

Statistically, Tuesday is the day of the week with the fewest delays on this flight route, while Friday has typically experienced more delays than other days.

Based on our data, JetBlue have experienced the fewest delays on this route in the past 12 months, with only about 11% of their flights encountering any delays.

There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Each day, there are between 6 and 7 direct flights that take off from Boston and land in San Diego, with an average flight time of 6h 10m. The most common departure time is 16:00 and most flights take off in the morning. Each week, there are 48 flights. The most frequent day of departure is Monday, when 15% of all weekly flights depart. The fewest flights depart on a Saturday.