$79 Cheap Flights from San Diego (SAN) to Santa Rosa (STS)

View $79 flight on Tue, May 27, 2025Opens in a new window

Popular airlines from San Diego Intl. Airport (SAN) to Santa Rosa, CA (STS-Sonoma County)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key
Find available prices by choosing your travel dates.

Cheap Flights from San Diego to Santa Rosa (SAN-STS)

Prices were available within the past 7 days and start at $79 for one-way flights and $157 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Wed, May 28 - Tue, Jun 3
SAN
San Diego
STS
Santa Rosa
$157 Roundtrip, found 2 hours ago
$157
Roundtrip
found 2 hours ago
Select Hawaiian Airlines flight, departing Wed, May 28 from San Diego to Santa Rosa, returning Tue, Jun 3, priced at $157 found 2 hours ago
Alaska Airlines
Mon, Jun 2 - Tue, Jun 3
SAN
San Diego
STS
Santa Rosa
$167 Roundtrip, found 2 hours ago
$167
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Mon, Jun 2 from San Diego to Santa Rosa, returning Tue, Jun 3, priced at $167 found 2 hours ago
Alaska Airlines
Tue, May 27 - Thu, May 29
SAN
San Diego
STS
Santa Rosa
$168 Roundtrip, found 1 day ago
$168
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, May 27 from San Diego to Santa Rosa, returning Thu, May 29, priced at $168 found 1 day ago
American Airlines
Thu, May 29 - Tue, Jun 3
SAN
San Diego
STS
Santa Rosa
$169 Roundtrip, found 2 days ago
$169
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, May 29 from San Diego to Santa Rosa, returning Tue, Jun 3, priced at $169 found 2 days ago
Hawaiian Airlines
Wed, May 28 - Sat, May 31
SAN
San Diego
STS
Santa Rosa
$172 Roundtrip, found 2 hours ago
$172
Roundtrip
found 2 hours ago
Select Hawaiian Airlines flight, departing Wed, May 28 from San Diego to Santa Rosa, returning Sat, May 31, priced at $172 found 2 hours ago
Alaska Airlines
Tue, Jun 3 - Wed, Jun 4
SAN
San Diego
STS
Santa Rosa
$175 Roundtrip, found 2 days ago
$175
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Jun 3 from San Diego to Santa Rosa, returning Wed, Jun 4, priced at $175 found 2 days ago
Alaska Airlines
Mon, Jun 2 - Tue, Jun 17
SAN
San Diego
STS
Santa Rosa
$176 Roundtrip, found 2 hours ago
$176
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Mon, Jun 2 from San Diego to Santa Rosa, returning Tue, Jun 17, priced at $176 found 2 hours ago
American Airlines
Thu, May 15 - Wed, May 21
CLD
Carlsbad
STS
Santa Rosa
$177 Roundtrip, found 2 hours ago
$177
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Thu, May 15 from Carlsbad to Santa Rosa, returning Wed, May 21, priced at $177 found 2 hours ago
American Airlines
Thu, May 15 - Wed, May 21
SAN
San Diego
STS
Santa Rosa
$177 Roundtrip, found 2 hours ago
$177
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Thu, May 15 from San Diego to Santa Rosa, returning Wed, May 21, priced at $177 found 2 hours ago
Alaska Airlines
Wed, May 14 - Tue, May 20
SAN
San Diego
STS
Santa Rosa
$177 Roundtrip, found 6 hours ago
$177
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Wed, May 14 from San Diego to Santa Rosa, returning Tue, May 20, priced at $177 found 6 hours ago

Frequently asked questions

How much does a flight from San Diego Intl. Airport (SAN) to Sonoma County Airport (STS) cost?
Snag cheap return tickets starting at $156 from San Diego Intl. Airport (SAN) to Sonoma County Airport (STS). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Alaska Airlines flight leaving SAN on May 14 2025 and touching down at STS. The price was last updated on April 24 2025 and has not changed since.
What is the cheapest month to fly from SAN to STS?
The cheapest flights from SAN to STS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from San Diego Intl. Airport (SAN) to Sonoma County Airport (STS)?
You can travel nonstop from San Diego Intl. Airport (SAN) to Sonoma County Airport (STS) on an Alaska Airlines flight.
What is the cheapest airline that flies from SAN to STS?
With tickets starting at $79 for a one-way flight from SAN to STS, Alaska Airlines is currently the cheapest airline flying this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SAN on May 28 2025. Prices were last updated on April 24 2025 and have not changed since.
How many flights per day from San Diego Intl. Airport (SAN) to Sonoma County Airport (STS)?
On average, San Diego Intl. Airport (SAN) only has 1 direct flight to Sonoma County Airport (STS) daily. For more choices, try our easy-to-use filter tool. Just enter your dates, then click on “1 Stop” or “2+ Stops” to discover flights with layovers.
What are the most popular departure times for flights from San Diego Intl. Airport (SAN) to Sonoma County Airport (STS)?
More passengers fly between SAN and STS at 8 AM than at any other time. Rather skip the crowds? Try choosing a quieter departure window and there’s a chance you’ll save on your fare as well.
What day of the week has the most flights from SAN to STS?
Sunday has the most flights from San Diego Intl. Airport (SAN) to Sonoma County Airport (STS). Consider jetting off on this day and you’ll have a greater chance of finding a departure that fits your schedule.
What is the earliest flight from San Diego Intl. Airport (SAN) to Sonoma County Airport (STS)?
San Diego Intl. Airport (SAN)’s first flight to Sonoma County Airport (STS) leaves at approximately 8:16AM UTC-8. With a travel time of 1h 50m, you’ll land at around 10:06AM UTC-8.
How long does it take to fly from San Diego Intl. Airport (SAN) to Sonoma County Airport (STS)?
The average flight time from SAN to STS is 1 hour and 50 minutes, covering a distance of 510 mi.
What is the best time to fly from San Diego Intl. Airport (SAN) to Sonoma County Airport (STS)?
Choose a flight from San Diego Intl. Airport (SAN) to Sonoma County Airport (STS) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**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 Santa Rosa from San Diego Intl. Airport (SAN)?
Catch a direct flight from San Diego Intl. Airport (SAN) to Santa Rosa and land at any one of these airports:

  • San Francisco Intl. Airport (SFO)
  • Oakland Intl. Airport (OAK)
  • Sonoma County Airport (STS)

Is it cheaper to buy a plane ticket from San Diego Intl. Airport (SAN) to Sonoma County Airport (STS) last-minute?
Booking your plane ticket from SAN to STS shortly before your getaway is usually more expensive. However, if you’re flexible with your schedule, you could snag a cheap last-minute fare.
Is it cheaper to book a SAN to STS flight and hotel package?
Compared with arranging flights and hotels separately, booking a SAN to STS flight and hotel package with Expedia could result in significant savings. Better still, having it all in one place takes the hassle out of planning your trip. Just pick your flights and select from our wide range of stays, then customize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from San Diego Intl. Airport (SAN) to Sonoma County Airport (STS)?
In most cases, you’re able to cancel or reschedule your SAN to STS flight. However, additional charges may apply, especially if you booked more than 24 hours ago. Check your itinerary for the airline’s fees and guidelines on flight changes, or if you’d like more information, go to our Customer Service portal.
*Available to One Key members.