$137 Cheap Flights from Santa Rosa (STS) to Eugene (EUG)

View $137 flight on Tue, Nov 4, 2025Opens in a new window

Popular airlines from Santa Rosa, CA (STS-Sonoma County) to Mahlon Sweet Field Airport (EUG)

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Cheap Flights from Santa Rosa to Eugene (STS-EUG)

Prices were available within the past 7 days and start at $137 for one-way flights and $262 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Tue, Oct 14 - Sat, Oct 18
STS
Santa Rosa
EUG
Eugene
$262 Roundtrip, found 1 day ago
$262
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Tue, Oct 14 from Santa Rosa to Eugene, returning Sat, Oct 18, priced at $262 found 1 day ago
Hawaiian Airlines
Sat, Dec 6 - Wed, Dec 24
STS
Santa Rosa
EUG
Eugene
$268 Roundtrip, found 2 days ago
$268
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Sat, Dec 6 from Santa Rosa to Eugene, returning Wed, Dec 24, priced at $268 found 2 days ago
Hawaiian Airlines
Wed, Oct 15 - Mon, Oct 20
STS
Santa Rosa
EUG
Eugene
$272 Roundtrip, found 1 day ago
$272
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Wed, Oct 15 from Santa Rosa to Eugene, returning Mon, Oct 20, priced at $272 found 1 day ago
Alaska Airlines
Sat, Oct 11 - Wed, Oct 29
STS
Santa Rosa
EUG
Eugene
$274 Roundtrip, found 9 hours ago
$274
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Sat, Oct 11 from Santa Rosa to Eugene, returning Wed, Oct 29, priced at $274 found 9 hours ago
Alaska Airlines
Sat, Oct 11 - Wed, Oct 29
STS
Santa Rosa
EUG
Eugene
$275 Roundtrip, found 9 hours ago
$275
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Sat, Oct 11 from Santa Rosa to Eugene, returning Wed, Oct 29, priced at $275 found 9 hours ago
Hawaiian Airlines
Wed, Dec 24 - Thu, Jan 8
STS
Santa Rosa
EUG
Eugene
$278 Roundtrip, found 2 days ago
$278
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Wed, Dec 24 from Santa Rosa to Eugene, returning Thu, Jan 8, priced at $278 found 2 days ago
Hawaiian Airlines
Thu, Dec 25 - Wed, Jan 7
STS
Santa Rosa
EUG
Eugene
$281 Roundtrip, found 2 days ago
$281
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Thu, Dec 25 from Santa Rosa to Eugene, returning Wed, Jan 7, priced at $281 found 2 days ago
Alaska Airlines
Sat, Oct 11 - Wed, Oct 29
STS
Santa Rosa
EUG
Eugene
$282 Roundtrip, found 9 hours ago
$282
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Sat, Oct 11 from Santa Rosa to Eugene, returning Wed, Oct 29, priced at $282 found 9 hours ago
Alaska Airlines
Tue, Dec 16 - Fri, Jan 2
STS
Santa Rosa
EUG
Eugene
$287 Roundtrip, found 2 days ago
$287
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Dec 16 from Santa Rosa to Eugene, returning Fri, Jan 2, priced at $287 found 2 days ago
American Airlines
Fri, Oct 17 - Sat, Oct 25
STS
Santa Rosa
EUG
Eugene
$603 Roundtrip, found 5 days ago
$603
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Oct 17 from Santa Rosa to Eugene, returning Sat, Oct 25, priced at $603 found 5 days ago

Find the cheapest month to fly from Santa Rosa (STS) to Eugene (EUG)

May is typically the cheapest month to fly

From $245 - $598 per traveler.

Frequently asked questions

How much does a flight from Sonoma County Airport (STS) to Mahlon Sweet Field Airport (EUG) cost?
Get a cheap one-way flight from $137 or cheap return flight from $262 from Sonoma County Airport (STS) to Mahlon Sweet Field Airport (EUG) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Sonoma County Airport (STS) to Mahlon Sweet Field Airport (EUG)?
October is the cheapest month to fly from STS to EUG. Traveling outside of peak seasons is often the key to finding a great deal.
What is the cheapest airline that flies from Sonoma County Airport (STS) to Mahlon Sweet Field Airport (EUG)?
Use the filter tool on Expedia to compare different airlines and find the cheapest carrier that'll fly you from STS to EUG. Then, sort your results by "Price (lowest to highest)" to snag the best deal available.
How many flights per day from Sonoma County Airport (STS) to Mahlon Sweet Field Airport (EUG)?
Direct flights from Sonoma County Airport (STS) to Mahlon Sweet Field Airport (EUG) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STS to EUG?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change based on a range of factors, such as the carrier and season.*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 Mahlon Sweet Field Airport (EUG)?
To avoid possible delays on the Sonoma County Airport (STS) to Mahlon Sweet Field Airport (EUG) route, fly 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.
Is it cheaper to buy a plane ticket from Sonoma County Airport (STS) to Mahlon Sweet Field Airport (EUG) last-minute?
Last-minute fares from STS to EUG are generally more expensive. To secure the best rates, start searching for flights well in advance. That said, if your travel plans are flexible, it's possible to score a cheap fare right before your journey.
Is it cheaper to book a STS to EUG flight and hotel package?
Compared with arranging hotels and flights separately, booking a STS to EUG flight and hotel package with Expedia could result in significant savings. What's more, having everything in one easy place takes the hassle out of travel planning. Simply secure your flights and select from our extensive range of hotels, then tailor your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from Sonoma County Airport (STS) to Mahlon Sweet Field Airport (EUG)?
It's usually possible to reschedule or cancel your STS to EUG flight. However, for bookings made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Travel information

Origin airport
Sonoma County
Destination airport
Eugene
Airlines serving
Alaska Airlines, American Airlines, Hawaiian Airlines
Roundtrip price
$259
Distance
388 mi

Book with confidence

Book with confidence

Santa Rosa to Eugene Flights

The cheapest times to fly from Santa Rosa to Eugene

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

 

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

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

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 Eugene in 2025. You can also book with separate airlines for your outbound and return journeys, from $137 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 Eugene 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 Eugene 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 Eugene Flights

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