Cheap Flights From Seattle - Tacoma Intl. (SEA) To Sonoma County (STS)

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Cheapest Flights from Seattle (SEA) to Santa Rosa (STS)

The cheapest flights to Sonoma County found within the past 7 days were CA $299 round trip and CA $338 one way. Prices and availability subject to change. Additional terms may apply.

Sat, May 16 - Tue, May 19
SEA
Seattle
STS
Santa Rosa
CA $299 Roundtrip, found 2 days ago
CA $299
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, May 16 from Seattle to Santa Rosa, returning Tue, May 19, priced at CA $299 found 2 days ago
Sat, May 2 - Sat, May 9
SEA
Seattle
STS
Santa Rosa
CA $305 Roundtrip, found 5 days ago
CA $305
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, May 2 from Seattle to Santa Rosa, returning Sat, May 9, priced at CA $305 found 5 days ago
Sat, May 2 - Sat, May 9
SEA
Seattle
STS
Santa Rosa
CA $310 Roundtrip, found 5 days ago
CA $310
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, May 2 from Seattle to Santa Rosa, returning Sat, May 9, priced at CA $310 found 5 days ago
Sat, May 16 - Tue, May 19
SEA
Seattle
STS
Santa Rosa
CA $339 Roundtrip, found 2 days ago
CA $339
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, May 16 from Seattle to Santa Rosa, returning Tue, May 19, priced at CA $339 found 2 days ago
Sat, May 2 - Sat, May 9
SEA
Seattle
STS
Santa Rosa
CA $346 Roundtrip, found 5 days ago
CA $346
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, May 2 from Seattle to Santa Rosa, returning Sat, May 9, priced at CA $346 found 5 days ago
Mon, Apr 13 - Mon, Apr 20
SEA
Seattle
STS
Santa Rosa
CA $353 Roundtrip, found 4 days ago
CA $353
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Mon, Apr 13 from Seattle to Santa Rosa, returning Mon, Apr 20, priced at CA $353 found 4 days ago
Thu, Sep 3 - Sun, Sep 6
SEA
Seattle
STS
Santa Rosa
CA $407 Roundtrip, found 3 days ago
CA $407
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, Sep 3 from Seattle to Santa Rosa, returning Sun, Sep 6, priced at CA $407 found 3 days ago
Wed, Sep 16 - Thu, Sep 24
SEA
Seattle
STS
Santa Rosa
CA $408 Roundtrip, found 1 day ago
CA $408
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Wed, Sep 16 from Seattle to Santa Rosa, returning Thu, Sep 24, priced at CA $408 found 1 day ago
Sat, May 2 - Sat, May 9
SEA
Seattle
STS
Santa Rosa
CA $416 Roundtrip, found 5 days ago
CA $416
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, May 2 from Seattle to Santa Rosa, returning Sat, May 9, priced at CA $416 found 5 days ago
Sat, May 16 - Tue, May 19
SEA
Seattle
STS
Santa Rosa
CA $422 Roundtrip, found 2 days ago
CA $422
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, May 16 from Seattle to Santa Rosa, returning Tue, May 19, priced at CA $422 found 2 days ago
Sat, May 2 - Sat, May 9
SEA
Seattle
STS
Santa Rosa
CA $432 Roundtrip, found 5 days ago
CA $432
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, May 2 from Seattle to Santa Rosa, returning Sat, May 9, priced at CA $432 found 5 days ago
Fri, Jun 5 - Mon, Jun 8
SEA
Seattle
STS
Santa Rosa
CA $435 Roundtrip, found 3 days ago
CA $435
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Fri, Jun 5 from Seattle to Santa Rosa, returning Mon, Jun 8, priced at CA $435 found 3 days ago
Sat, May 2 - Sat, May 9
SEA
Seattle
STS
Santa Rosa
CA $439 Roundtrip, found 5 days ago
CA $439
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, May 2 from Seattle to Santa Rosa, returning Sat, May 9, priced at CA $439 found 5 days ago
Fri, Jun 5 - Mon, Jun 8
SEA
Seattle
STS
Santa Rosa
CA $443 Roundtrip, found 3 days ago
CA $443
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Fri, Jun 5 from Seattle to Santa Rosa, returning Mon, Jun 8, priced at CA $443 found 3 days ago

Frequently asked questions

Are there direct flights from Seattle - Tacoma Intl. Airport (SEA) to Sonoma County Airport (STS)?
If you'd prefer to avoid layovers, it's a good idea to arrange your flight from SEA to Sonoma County Airport ahead of time. Alaska Airlines is the only air carrier that operates nonstop flights on this route.
What airlines fly from Sea-Tac Airport to STS?
Many wise wanderers choose to take to the skies with Alaska Airlines from Seattle - Tacoma Intl. Airport (SEA) to Sonoma County Airport (STS). This popular air carrier not only offers up to 78 flights each month, it also has direct services.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.