Cheap flights from Boston to San Francisco from R2 785

If you’re not able to fly to San Francisco in January, then November is your next best option. Flight prices from Boston to San Francisco during November average around R6 237.

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

You are more likely to see cheaper flights to San Francisco from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around R6 789 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Boston for as low as R5 553 on momondo.

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

No. A direct flight is the cheapest option for a flight between Boston to San Francisco.

As of September 2026, prices for Boston to San Francisco flights are approximately 1% more expensive when compared to flights at the same time last year.

Historically, on average around 22% of flights between Boston and San Francisco have experienced a delay on any given week. The average delay length over the past 12 months has been 172 minutes.

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

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

According to our data, United Airlines have had the fewest delays on this route over the last 12 months, with about 20% of their flights experiencing any sort of delay.

As of September 2026, there are 27 flights per day flying from Boston to San Francisco. The most common time of day flights depart is 7:00, with 48% of flights taking off at midday.

192 flights are operational weekly from Boston to San Francisco as of September 2026. The most popular departure day for this route is Wed, with 22% of flights per week taking off on this day.