Cheap flights from San Francisco to San Diego from $83

The month of October is, on average, the cheapest month to fly to San Diego from San Francisco, with most prices found around $256. If you’re not able to fly to San Diego in October, then September is your next best option. Flight prices from San Francisco to San Diego during September average around $290.

Fly from San Francisco to San Diego for the best San Francisco - San Diego flight prices

You are more likely to see cheaper flights to San Diego from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $326 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from San Francisco for as low as $228 on momondo.

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

Historically, on average around 30% of flights between San Francisco and San Diego have experienced a delay on any given week. The average delay length over the past 12 months has been 126 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the early afternoon 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. Friday 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 21% of their flights experiencing any sort of delay.

As of October 2026, 48 flights take off from San Francisco and land in San Diego each day. The most common flight departure time for this route is 16:00, with 39% of daily flights taking off in the afternoon.

As of October 2026, 341 flights take off from San Francisco and land in San Diego each week. The most common flight departure day for this route is Tue, with 20% of weekly flights taking off on this day.