$80 Cheap Flights from Seattle (SEA) to Santa Rosa (STS)

View $80 flight on Tue, Nov 4, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Santa Rosa, CA (STS-Sonoma County)

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Cheap Flights from Seattle to Santa Rosa (SEA-STS)

Prices were available within the past 7 days and start at $80 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
Tue, Sep 16 - Sat, Sep 20
SEA
Seattle
STS
Santa Rosa
$157 Roundtrip, found 12 hours ago
$157
Roundtrip
found 12 hours ago
Select Hawaiian Airlines flight, departing Tue, Sep 16 from Seattle to Santa Rosa, returning Sat, Sep 20, priced at $157 found 12 hours ago
Alaska Airlines
Wed, Sep 24 - Mon, Sep 29
SEA
Seattle
STS
Santa Rosa
$167 Roundtrip, found 7 hours ago
$167
Roundtrip
found 7 hours ago
Select Alaska Airlines flight, departing Wed, Sep 24 from Seattle to Santa Rosa, returning Mon, Sep 29, priced at $167 found 7 hours ago
American Airlines
Thu, Dec 4 - Sat, Dec 6
SEA
Seattle
STS
Santa Rosa
$174 Roundtrip, found 2 days ago
$174
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, Dec 4 from Seattle to Santa Rosa, returning Sat, Dec 6, priced at $174 found 2 days ago
Hawaiian Airlines
Thu, Aug 28 - Sun, Aug 31
SEA
Seattle
STS
Santa Rosa
$177 Roundtrip, found 7 hours ago
$177
Roundtrip
found 7 hours ago
Select Hawaiian Airlines flight, departing Thu, Aug 28 from Seattle to Santa Rosa, returning Sun, Aug 31, priced at $177 found 7 hours ago
Alaska Airlines
Fri, Dec 12 - Tue, Dec 16
SEA
Seattle
STS
Santa Rosa
$179 Roundtrip, found 17 hours ago
$179
Roundtrip
found 17 hours ago
Select Alaska Airlines flight, departing Fri, Dec 12 from Seattle to Santa Rosa, returning Tue, Dec 16, priced at $179 found 17 hours ago
Alaska Airlines
Sun, Sep 7 - Tue, Sep 9
SEA
Seattle
STS
Santa Rosa
$180 Roundtrip, found 4 hours ago
$180
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Sun, Sep 7 from Seattle to Santa Rosa, returning Tue, Sep 9, priced at $180 found 4 hours ago
American Airlines
Wed, Sep 3 - Fri, Sep 5
SEA
Seattle
STS
Santa Rosa
$185 Roundtrip, found 2 days ago
$185
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Sep 3 from Seattle to Santa Rosa, returning Fri, Sep 5, priced at $185 found 2 days ago
Hawaiian Airlines
Thu, Nov 27 - Thu, Dec 4
SEA
Seattle
STS
Santa Rosa
$187 Roundtrip, found 16 hours ago
$187
Roundtrip
found 16 hours ago
Select Hawaiian Airlines flight, departing Thu, Nov 27 from Seattle to Santa Rosa, returning Thu, Dec 4, priced at $187 found 16 hours ago
Alaska Airlines
Fri, Dec 12 - Tue, Dec 16
SEA
Seattle
STS
Santa Rosa
$189 Roundtrip, found 17 hours ago
$189
Roundtrip
found 17 hours ago
Select Alaska Airlines flight, departing Fri, Dec 12 from Seattle to Santa Rosa, returning Tue, Dec 16, priced at $189 found 17 hours ago
Alaska Airlines
Fri, Dec 12 - Tue, Dec 16
SEA
Seattle
STS
Santa Rosa
$189 Roundtrip, found 17 hours ago
$189
Roundtrip
found 17 hours ago
Select Alaska Airlines flight, departing Fri, Dec 12 from Seattle to Santa Rosa, returning Tue, Dec 16, priced at $189 found 17 hours ago

Find the cheapest month to fly from Seattle (SEA) to Santa Rosa (STS)

February is typically the cheapest month to fly

From $156 - $372 per traveler.

Graph displaying average flight prices per month

Flights from Seattle (SEA) to Santa Rosa (STS)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Sonoma County
Airlines serving
Alaska Airlines, American Airlines, Hawaiian Airlines
Roundtrip price
$156
Distance
617 mi
Average flight time
2 hours 3 mins

Seattle to Santa Rosa Flights

The cheapest times to fly from Seattle to Santa Rosa

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 Seattle to Santa Rosa are during the month of September. You can find some of the cheapest flights from Seattle to Santa Rosa with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Santa Rosa

Sunday is one of the best days to book for cheap flights from Seattle to Santa Rosa: 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 Seattle to Santa Rosa

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 Seattle to Santa Rosa in 2025. You can also book with separate airlines for your outbound and return journeys, from $80 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 Seattle to Santa Rosa 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 Seattle to Santa Rosa 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.

 

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Sonoma County Airport (STS) cost?
Get a cheap one-way flight from $80 or cheap return flight from $157 from Seattle - Tacoma Intl. Airport (SEA) to Sonoma County Airport (STS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Sonoma County Airport (STS)?
The cheapest month to fly from SEA to STS is September, when there's less demand. Off-peak months are often when you'll find lower airfares between these airports.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to Sonoma County Airport (STS)?
You can fly straight from Seattle - Tacoma Intl. Airport (SEA) to Sonoma County Airport (STS) on an Alaska Airlines flight.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Sonoma County Airport (STS)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest SEA to STS flight.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Sonoma County Airport (STS)?
On average, Seattle - Tacoma Intl. Airport (SEA) only offers 1 direct flight to Sonoma County Airport (STS) daily. For more options, try Expedia's easy-to-use filters. Just enter your preferred travel dates, then click on "1 Stop" or "2+ Stops" to discover flights with layovers.
What are the most popular departure times for flights from Seattle - Tacoma Intl. Airport (SEA) to Sonoma County Airport (STS)?
The 8 AM departures from SEA to STS are the busiest. These flights can come with a higher price due to their popularity. If you want to save on your trip, pick a less crowded time to fly.
What day of the week has the most flights from SEA to STS?
Friday has the most flights from Seattle - Tacoma Intl. Airport (SEA) to Sonoma County Airport (STS). Consider taking off on this day and you'll have a greater chance of finding a schedule that works for you.
What is the earliest flight from Seattle - Tacoma Intl. Airport (SEA) to Sonoma County Airport (STS)?
Seattle - Tacoma Intl. Airport (SEA)'s first flight to Sonoma County Airport (STS) takes off at approximately 8:15AM UTC-8. With a total travel time of 2h 17m, you'll touch down at around 10:32AM UTC-8.
How long does it take to fly from Seattle - Tacoma Intl. Airport (SEA) to Sonoma County Airport (STS)?
Flights from SEA to STS have an average travel time of 2 hours and 12 minutes. The total distance between these two airports is 620 mi.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Sonoma County Airport (STS)?
Choose a flight from Seattle - Tacoma Intl. Airport (SEA) to Sonoma County Airport (STS) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this 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 Seattle - Tacoma Intl. Airport (SEA)?
Board a direct flight from Seattle - Tacoma Intl. Airport (SEA) to Santa Rosa and come in for landing at 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 Seattle - Tacoma Intl. Airport (SEA) to Sonoma County Airport (STS) last-minute?
Last-minute bookings from SEA to STS are generally more expensive. To lock in the lowest prices, start looking for flights well in advance. That being said, if your travel plans are flexible, you may find a cheap ticket just before your departure.
Is it cheaper to book a SEA to STS flight and hotel package?
Compared with arranging hotels and flights separately, booking a SEA to STS flight and hotel package with Expedia could lead to significant savings. What's more, managing everything in one place takes the hassle out of planning your trip. Simply secure your flights and choose from our wide range of stays, then tailor your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Sonoma County Airport (STS)?
If you booked your SEA to STS flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket 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, go to our Customer Service portal if you'd like more information.

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*Available to One Key members.