Cheap flights from San Diego to San Luis Obispo from $129

In general, February is the cheapest month to fly from San Diego to San Luis Obispo. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $217. The month of January is another great option to travel to San Luis Obispo, with average flight prices from San Diego averaging around $227.

On average, the least expensive day to fly to San Luis Obispo from San Diego is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $227. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from San Diego to San Luis Obispo for around $402.

Flying to San Luis Obispo from San Diego in the evening is the least expensive time of day to depart. momondo users have found prices as low as $257 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $397 on average. Flights to San Luis Obispo from San Diego in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

There are 4 cabin classes available to choose from on San Diego to San Luis Obispo 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 11% on your flight if you consider stops on a San Diego to San Luis Obispo flight.

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

Alaska Airlines, United Airlines and Southwest are the top three most popular airlines that fly to San Luis Obispo from San Diego according to our data. Alaska Airlines is the first choice among our users, with 69% of people opting to fly with this airline when traveling to San Luis Obispo. Keep in mind that there are 3 different airlines that fly to San Luis Obispo on a routine basis, so you have a few additional options to choose from.

The number of flights available between San Diego and San Luis Obispo is 4 per day as of September 2026. The most frequent departure time is 1:00PM, with 50% of daily flights leaving in the afternoon.

28 flights are operational weekly from San Diego to San Luis Obispo as of September 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.