Cheap Flights from Santa Rosa (STS) to San Diego (SDM)

Popular airlines from Santa Rosa, CA (STS-Sonoma County) to San Diego, CA (SDM-Brown Field Municipal)

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Frequently asked questions

How much does a flight from Sonoma County Airport (STS) to San Diego, CA (SDM-Brown Field Municipal) cost?
Grab a cheap one-way flight or cheap return flight from Sonoma County Airport (STS) to San Diego, CA (SDM-Brown Field Municipal) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Sonoma County Airport (STS) to San Diego, CA (SDM-Brown Field Municipal)?
Planning your getaway for can help you save, as it's the cheapest month for flights between STS and SDM. You'll often find the lowest fares during off-peak months.
What is the cheapest airline that flies from Sonoma County Airport (STS) to San Diego, CA (SDM-Brown Field Municipal)?
To find the cheapest airline that'll fly you from STS to SDM, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Sonoma County Airport (STS) to San Diego, CA (SDM-Brown Field Municipal)?
There are no daily nonstop flights from Sonoma County Airport (STS) to San Diego, CA (SDM-Brown Field Municipal). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be on your way in no time at all.
What day of the week has the most flights from STS to SDM?
Generally you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* But this can vary based on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sonoma County Airport (STS) to San Diego, CA (SDM-Brown Field Municipal)?
To avoid possible delays on the Sonoma County Airport (STS) to San Diego, CA (SDM-Brown Field Municipal) route, travel before 3 PM. Later departures are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for San Diego County from Sonoma County Airport (STS)?
San Diego Intl. Airport (SAN) is the only airport in San Diego County with direct flights from Sonoma County Airport (STS). Consider the available options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Sonoma County Airport (STS) to San Diego, CA (SDM-Brown Field Municipal) last-minute?
Waiting until just before your trip to book a flight from STS to SDM generally means paying more. While you may come across some last-minute offers, they aren't always guaranteed. Keep your travel plans flexible for a better chance of snagging a bargain.
Is it cheaper to book a STS to SDM flight and hotel package?
You can save money by booking a STS to SDM flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. Once you've chosen your ideal flights and accommodations, you can add extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from Sonoma County Airport (STS) to San Diego, CA (SDM-Brown Field Municipal)?
If you booked your STS to SDM flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you want more information.

Travel information

Travel information

Origin airport
Sonoma County
Destination airport
Brown Field Municipal
Distance
524 mi

Book with confidence

Book with confidence

Santa Rosa to San Diego Flights

The cheapest times to fly from Santa Rosa to San Diego

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Santa Rosa to San Diego are during the month of . You can find some of the cheapest flights from Santa Rosa to San Diego with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Santa Rosa to San Diego

Sunday is one of the best days to book for cheap flights from Santa Rosa to San Diego: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Santa Rosa to San Diego

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Santa Rosa to San Diego in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Santa Rosa to San Diego flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Santa Rosa to San Diego airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Santa Rosa to San Diego Flights
*Available to One Key members.