$258 Cheap Flights from Eureka (ACV) to Santa Rosa (STS)

View $258 flight on Wed, Apr 22, 2026Opens in a new window

Popular airlines from Eureka, CA (ACV-Arcata - Eureka) to Santa Rosa, CA (STS-Sonoma County)

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Cheap Flights from Eureka to Santa Rosa (ACV-STS)

Prices were available within the past 7 days and start at $258 for one-way flights and $428 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, Apr 22 - Tue, Apr 28
ACV
Eureka
STS
Santa Rosa
$428 Roundtrip, found 1 day ago
$428
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Wed, Apr 22 from Eureka to Santa Rosa, returning Tue, Apr 28, priced at $428 found 1 day ago
United
Thu, Nov 27 - Wed, Dec 10
ACV
Eureka
STS
Santa Rosa
$770 Roundtrip, found 4 days ago
$770
Roundtrip
found 4 days ago
Select United flight, departing Thu, Nov 27 from Eureka to Santa Rosa, returning Wed, Dec 10, priced at $770 found 4 days ago
United
Tue, Nov 18 - Wed, Dec 3
ACV
Eureka
STS
Santa Rosa
$876 Roundtrip, found 4 days ago
$876
Roundtrip
found 4 days ago
Select United flight, departing Tue, Nov 18 from Eureka to Santa Rosa, returning Wed, Dec 3, priced at $876 found 4 days ago
United
Tue, Nov 18 - Tue, Dec 2
ACV
Eureka
STS
Santa Rosa
$880 Roundtrip, found 4 days ago
$880
Roundtrip
found 4 days ago
Select United flight, departing Tue, Nov 18 from Eureka to Santa Rosa, returning Tue, Dec 2, priced at $880 found 4 days ago
United
Sun, Nov 16 - Wed, Dec 3
ACV
Eureka
STS
Santa Rosa
$884 Roundtrip, found 4 days ago
$884
Roundtrip
found 4 days ago
Select United flight, departing Sun, Nov 16 from Eureka to Santa Rosa, returning Wed, Dec 3, priced at $884 found 4 days ago
United
Fri, Nov 14 - Fri, Dec 5
ACV
Eureka
STS
Santa Rosa
$885 Roundtrip, found 4 days ago
$885
Roundtrip
found 4 days ago
Select United flight, departing Fri, Nov 14 from Eureka to Santa Rosa, returning Fri, Dec 5, priced at $885 found 4 days ago

Alternative airports near Santa Rosa

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Sonoma County STS. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $770
STS
Sonoma County
CheapestClosest
Average driving time to city center10 min
Flights from $770
Flights from Eureka (ACV) to Santa Rosa (STS)
Origin airport
Arcata - Eureka
Destination airport
Sonoma County
Airlines serving
Alaska Airlines
Roundtrip price
$427
Distance
183 mi

Eureka to Santa Rosa Flights

The cheapest times to fly from Eureka 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 Eureka to Santa Rosa are during the month of April. You can find some of the cheapest flights from Eureka to Santa Rosa with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Eureka 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 Eureka 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 Eureka to Santa Rosa in 2025. You can also book with separate airlines for your outbound and return journeys, from $258 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 Eureka 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 Eureka 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 Arcata - Eureka Airport (ACV) to Sonoma County Airport (STS) cost?
Get a cheap one-way flight from $258 or cheap return flight from $428 from Arcata - Eureka Airport (ACV) to Sonoma County Airport (STS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Arcata - Eureka Airport (ACV) to Sonoma County Airport (STS)?
The cheapest month to fly from ACV to STS is April, when there's less demand. Off-peak months are often when airlines offer better prices between these airports.
What is the cheapest airline that flies from Arcata - Eureka Airport (ACV) to Sonoma County Airport (STS)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest ACV to STS flight.
How many flights per day from Arcata - Eureka Airport (ACV) to Sonoma County Airport (STS)?
You'll need to take a flight with a layover when traveling from Arcata - Eureka Airport (ACV) to Sonoma County Airport (STS). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from ACV to STS?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can change based on various factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Arcata - Eureka Airport (ACV) to Sonoma County Airport (STS)?
To land at Sonoma County Airport (STS) on time, select a flight that leaves Arcata - Eureka Airport (ACV) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Arcata - Eureka Airport (ACV)?
San Francisco Intl. Airport (SFO) is the only airport in Santa Rosa with direct flights from Arcata - Eureka Airport (ACV). Browse the available options and discover cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Arcata - Eureka Airport (ACV) to Sonoma County Airport (STS) last-minute?
Holding off until just before your trip to book a flight from ACV to STS generally means paying more. While you might find some last-minute offers, they're not always guaranteed. Be flexible with your itinerary for a better chance of getting a bargain.
Is it cheaper to book an ACV to STS flight and hotel package?
Compared with arranging hotels and flights separately, booking an ACV to STS flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one place will take the stress out of travel planning. Simply pick your flights and choose from our wide range of hotels, then tailor your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Arcata - Eureka Airport (ACV) to Sonoma County Airport (STS)?
Generally, it's possible to reschedule or cancel your ACV to STS flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.