Cheap flights from San Francisco to San Diego from ₹ 5,549

In general, July is the cheapest month to fly from San Francisco to San Diego. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around ₹ 12,602. If you are unable to visit San Diego during the month of July, then departing from San Francisco during the month June is also very affordable. Most momondo users find prices during this month for around ₹ 13,919.

The cheapest day to depart on your flight to San Diego is on a Tuesday when prices can be found for as low as ₹ 5,323. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to San Diego is Wednesday, with ticket prices averaging around ₹ 26,669.

The cheapest time of day to fly to San Diego is in the morning when flights can be purchased for as low as ₹ 9,086. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are ₹ 26,706 on average. Flights to San Diego from San Francisco in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 ₹ 18,229 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 ₹ 11,944 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.

United Airlines, Southwest, and Frontier are the most popular carriers operating from San Francisco to San Diego

Southwest, Hawaiian Airlines and Alaska Airlines are the top three most popular airlines that fly to San Diego from San Francisco according to our data. Southwest is the first choice among our users, with 54% of people opting to fly with this airline when travelling to San Diego. Keep in mind that there are 3 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

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, there are 49 flights per day flying from San Francisco to San Diego. The most common time of day flights depart is 18:00, with 35% of flights taking off at midday.

The number of flights available between San Francisco and San Diego is 344 per week as of April 2026. The most frequent departure day is Wed, with 17% of weekly flights leaving on this day.