Cheap flights from Boston to California from £84

If you are unable to visit California during the month of September, then departing from Boston during the month January is also very affordable. Most momondo users find prices during this month for around £250.

The cheapest day to depart on your flight to California is on a Friday when prices can be found for as low as £187. This is often the case because there is less demand to fly during this day of the week. On the other hand, Wednesday is the most expensive day to depart from Boston because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £513.

The cheapest time of day to fly to California is in the afternoon when flights can be purchased for as low as £183. In contrast, the most expensive time of day to depart to California is at midday when prices are around £513.

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

You are more likely to see cheaper flights to California from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to California for around £266 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to California from Boston for as low as £236 on momondo.

There are 3 cabin classes available to choose from on Boston to California flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

United Airlines, Southwest, and Delta are the most popular carriers operating from Boston Logan Intl to California

JetBlue, American Airlines and Delta are the top three most popular airlines that fly to California from Boston according to our data. JetBlue is the first choice among our users, with 53% of people opting to fly with this airline when travelling to California. Keep in mind that there are 3 different airlines that fly to California on a routine basis, so you have a few additional options to choose from.

85 flights are operational daily from Boston to California as of April 2026. The most popular departure time for this route is 06:00, with 50% of flights per day taking off at midday.

As of April 2026, there are 598 flights per week flying from Boston to California. The most common day of the week flights depart is Mon, with 21% of flights taking off on this day.