Cheap flights from Santa Rosa to San Diego from $59

If you are unable to visit San Diego during the month of September, then departing from Santa Rosa during the month October is also very affordable. Most momondo users find prices during this month for around $242.

The cheapest day to depart from Santa Rosa to San Diego is on a Saturday. Travelers who choose to depart for San Diego on a Saturday will often find tickets for as low as $219. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $272. 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 evening when flights can be purchased for as low as $215. Flights in the afternoon are often more expensive with an average ticket price of $260.

Fly from Santa Rosa Sonoma County to San Diego for the best Santa Rosa Sonoma County - San Diego flight prices

You are more likely to see cheaper flights to San Diego from Santa Rosa when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $254 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Santa Rosa for as low as $204 on momondo.

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

Southwest and Alaska Airlines are the most popular carriers operating from Santa Rosa Sonoma County to San Diego

Alaska Airlines, Southwest and United Airlines are the top three most popular airlines that fly to San Diego from Santa Rosa according to our data. Alaska Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 8 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

As of September 2026, 6 flights take off from Santa Rosa and land in San Diego each day. The most common flight departure time for this route is 6:00AM, with 72% of daily flights taking off at noon.

44 flights are operational weekly from Santa Rosa to San Diego as of September 2026. The most popular departure day for this route is Mon, with 18% of flights per week taking off on this day.