Cheap flights from San Francisco to San Diego from $82

The month of July is, on average, the cheapest month to fly to San Diego from San Francisco, with most prices found around $189. If you’re not able to fly to San Diego in July, then June is your next best option. Flight prices from San Francisco to San Diego during June average around $210.

On average, the least expensive day to fly to San Diego from San Francisco is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $155. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday is the most expensive day to depart from San Francisco because it is more convenient for both business and leisure travellers. As a result, prices tend to be around $298.

Our data shows that the cheapest San Francisco to San Diego flights are usually those with departure times in the morning. Our users have found flights to San Diego in the morning for as low as $149. Try not to purchase tickets in the evening because they tend to be around $322. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 $272 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 $177 on momondo.

There are 3 cabin classes 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 21% 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 117 minutes.

Generally, flights departing in the morning 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. 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 16% of their flights experiencing any sort of delay.

As of April 2026, 45 flights take off from San Francisco and land in San Diego each day. The most common flight departure time for this route is 18:00, with 36% of daily flights taking off at midday.

As of April 2026, 320 flights take off from San Francisco and land in San Diego each week. The most common flight departure day for this route is Mon, with 19% of weekly flights taking off on this day.