Cheap flights from San Luis Obispo to San Diego from $143

If you are unable to visit San Diego during the month of August, then departing from San Luis Obispo during the month January is also very affordable. Most momondo users find prices during this month for around $197.

The cheapest day to depart from San Luis Obispo 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 $351. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $473. 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 at noon when flights can be purchased for as low as $271. Flights in the morning are often more expensive with an average ticket price of $453.

Fly from San Luis Obispo County to San Diego for the best San Luis Obispo County - San Diego flight prices

You are more likely to see cheaper flights to San Diego from San Luis Obispo when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $251 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from San Luis Obispo for as low as $174 on momondo.

There are 4 cabin classes available to choose from on San Luis Obispo 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 9% on your flight if you consider stops on a San Luis Obispo to San Diego flight.

As of June 2026, prices for San Luis Obispo to San Diego flights are approximately 174% more expensive when compared to flights at the same time last year.

Alaska Airlines and United Airlines are the most popular carriers operating from San Luis Obispo County to San Diego

Alaska Airlines, United Airlines and Hawaiian Airlines are the top three most popular airlines that fly to San Diego from San Luis Obispo according to our data. Alaska Airlines is the first choice among our users, with 77% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 4 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

4 flights are operational daily from San Luis Obispo to San Diego as of June 2026. The most popular departure time for this route is 6:00AM, with 50% of flights per day taking off at noon.

As of June 2026, there are 28 flights per week flying from San Luis Obispo to San Diego. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.