Cheap flights from Los Angeles to San Francisco from £43

The month of October is, on average, the cheapest month to fly to San Francisco from Los Angeles, with most prices found around £127. If you are unable to visit San Francisco during the month of October, then departing from Los Angeles during the month September is also very affordable. Most momondo users find prices during this month for around £129.

The cheapest day to depart on your flight to San Francisco is on a Saturday when prices can be found for as low as £115. This is often the case because there is less demand to fly during this day of the week. Flights from Los Angeles to San Francisco on a Sunday will generally be more expensive and average around £237. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our most recent data shows that the best time of day to fly to San Francisco is in the afternoon. Flights from Los Angeles to San Francisco during this time can be as low as £129. Try not to purchase tickets in the evening because they tend to be around £237. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Los Angeles to San Francisco for the best Los Angeles - San Francisco flight prices

You are more likely to see cheaper flights to San Francisco from Los Angeles when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around £152 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 Los Angeles for as low as £84 on momondo.

There are 4 cabin classes available to choose from on Los Angeles to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Delta, Alaska Airlines, and Southwest are the most popular carriers operating from Los Angeles to San Francisco

Alaska Airlines, Frontier and Delta are the top three most popular airlines that fly to San Francisco from Los Angeles according to our data. Alaska Airlines is the first choice among our users, with 51% of people opting to fly with this airline when travelling to San Francisco. Keep in mind that there are 5 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

Historically, on average around 22% of flights between Los Angeles and San Francisco have experienced a delay on any given week. The average delay length over the past 12 months has been 115 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.

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday 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.

The number of flights available between Los Angeles and San Francisco is 139 per day as of June 2026. The most frequent departure time is 16:00, with 38% of daily flights leaving in the afternoon.

As of June 2026, 979 flights take off from Los Angeles and land in San Francisco each week. The most common flight departure day for this route is Thu, with 18% of weekly flights taking off on this day.