Cheap flights from Boston to California from £90

If you are unable to visit California during the month of January, then departing from Boston during the month November is also very affordable. Most momondo users find prices during this month for around £291.

The cheapest day to depart on your flight to California is on a Friday when prices can be found for as low as £185. 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 £684.

The cheapest time of day to fly to California is in the afternoon when flights can be purchased for as low as £189. In contrast, the most expensive time of day to depart to California is in the morning when prices are around £248.

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 £287 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 £230 on momondo.

There are 4 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.

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

JetBlue, Delta and American Airlines 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 42% 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.

100 flights are operational daily from Boston to California as of September 2026. The most popular departure time for this route is 06:00, with 55% of flights per day taking off at midday.

As of September 2026, there are 702 flights per week flying from Boston to California. The most common day of the week flights depart is Thu, with 19% of flights taking off on this day.