Cheap flights from Los Angeles to San Diego from $43

If you are unable to visit San Diego during the month of February, then departing from Los Angeles during the month March is also very affordable. Most momondo users find prices during this month for around $239.

The cheapest day to depart from Los Angeles to San Diego is on a Thursday. Travelers who choose to depart for San Diego on a Thursday will often find tickets for as low as $249. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $467. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

The cheapest time of day to fly to San Diego is in the afternoon when flights can be purchased for as low as $269. Flights at noon are often more expensive with an average ticket price of $369.

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

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

You could potentially save up to 35% on your flight if you consider stops on a Los Angeles to San Diego flight.

Alaska Airlines, Frontier, and United Airlines are the most popular carriers operating from Los Angeles to San Diego

United Airlines, Delta and Southern / Mokulele are the top three most popular airlines that fly to San Diego from Los Angeles according to our data. United Airlines is the first choice among our users, with 55% of people opting to fly with this airline when traveling 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 14% of flights between Los Angeles and San Diego have experienced a delay on any given week. The average delay length over the past 12 months has been 104 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of 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 least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

As of November 2026, there are 37 flights per day flying from Los Angeles to San Diego. The most common time of day flights depart is 6:00PM, with 51% of flights taking off in the evening.

As of November 2026, 261 flights take off from Los Angeles and land in San Diego each week. The most common flight departure day for this route is Sun, with 18% of weekly flights taking off on this day.