Cheap flights from San Francisco to San Diego from €51

The cheapest month to fly to San Diego from San Francisco is in July. Flight prices, which tend to average around €111, are often lower during this time because this is during the off-season. 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 €125.

The cheapest day to depart from San Francisco to San Diego is on a Sunday when prices can be found for as low as €76. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to San Diego on Thursday is €341.

According to our data, the cheapest time of day to fly to San Diego is in the morning. momondo users have found flights departing from San Francisco to San Diego in the morning for as low as €85. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. At midday is when there is more demand to fly to San Diego, so prices are often more expensive at around €87 per ticket.

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 €157 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 €105 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 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 118 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 15% of their flights experiencing any sort of delay.

As of March 2026, there are 44 flights per day flying from San Francisco to San Diego. The most common time of day flights depart is 19:00, with 40% of flights taking off in the afternoon.

314 flights are operational weekly from San Francisco to San Diego as of March 2026. The most popular departure day for this route is Fri, with 21% of flights per week taking off on this day.