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

View $137 flight on Thu, Aug 27, 2026Opens 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 $285 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Sep 8 - Sat, Sep 12
STS
Santa Rosa
EUG
Eugene
$285 Roundtrip, found 23 hours ago
$285
Roundtrip
found 23 hours ago
Select Alaska Airlines flight, departing Tue, Sep 8 from Santa Rosa to Eugene, returning Sat, Sep 12, priced at $285 found 23 hours ago
Alaska Airlines
Tue, Sep 8 - Sat, Sep 12
STS
Santa Rosa
EUG
Eugene
$290 Roundtrip, found 23 hours ago
$290
Roundtrip
found 23 hours ago
Select Alaska Airlines flight, departing Tue, Sep 8 from Santa Rosa to Eugene, returning Sat, Sep 12, priced at $290 found 23 hours ago
Alaska Airlines
Thu, Sep 10 - Thu, Sep 17
STS
Santa Rosa
EUG
Eugene
$292 Roundtrip, found 17 hours ago
$292
Roundtrip
found 17 hours ago
Select Alaska Airlines flight, departing Thu, Sep 10 from Santa Rosa to Eugene, returning Thu, Sep 17, priced at $292 found 17 hours ago
Southwest Airlines
Tue, Sep 8 - Sat, Sep 12
STS
Santa Rosa
EUG
Eugene
$297 Roundtrip, found 23 hours ago
$297
Roundtrip
found 23 hours ago
Select Southwest Airlines flight, departing Tue, Sep 8 from Santa Rosa to Eugene, returning Sat, Sep 12, priced at $297 found 23 hours ago
Southwest Airlines
Tue, Jul 21 - Wed, Jul 22
STS
Santa Rosa
EUG
Eugene
$302 Roundtrip, found 17 hours ago
$302
Roundtrip
found 17 hours ago
Select Southwest Airlines flight, departing Tue, Jul 21 from Santa Rosa to Eugene, returning Wed, Jul 22, priced at $302 found 17 hours ago
Alaska Airlines
Tue, Sep 8 - Sat, Sep 12
STS
Santa Rosa
EUG
Eugene
$304 Roundtrip, found 23 hours ago
$304
Roundtrip
found 23 hours ago
Select Alaska Airlines flight, departing Tue, Sep 8 from Santa Rosa to Eugene, returning Sat, Sep 12, priced at $304 found 23 hours ago
Southwest Airlines
Tue, Jul 21 - Wed, Jul 22
STS
Santa Rosa
EUG
Eugene
$307 Roundtrip, found 17 hours ago
$307
Roundtrip
found 17 hours ago
Select Southwest Airlines flight, departing Tue, Jul 21 from Santa Rosa to Eugene, returning Wed, Jul 22, priced at $307 found 17 hours ago
Delta
Thu, Oct 22 - Sun, Oct 25
STS
Santa Rosa
EUG
Eugene
$311 Roundtrip, found 4 days ago
$311
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Oct 22 from Santa Rosa to Eugene, returning Sun, Oct 25, priced at $311 found 4 days ago
Alaska Airlines
Wed, Aug 19 - Sat, Aug 22
STS
Santa Rosa
EUG
Eugene
$317 Roundtrip, found 19 hours ago
$317
Roundtrip
found 19 hours ago
Select Alaska Airlines flight, departing Wed, Aug 19 from Santa Rosa to Eugene, returning Sat, Aug 22, priced at $317 found 19 hours ago
American Airlines
Fri, Jul 17 - Sat, Jul 18
STS
Santa Rosa
EUG
Eugene
$763 Roundtrip, found 6 days ago
$763
Roundtrip
found 6 days ago
Select American Airlines flight, departing Fri, Jul 17 from Santa Rosa to Eugene, returning Sat, Jul 18, priced at $763 found 6 days ago

What you need to know for your flight from Sonoma County to Eugene

Santa Rosa (STS) to Eugene (EUG) at a glance

Travel between Santa Rosa (STS) and Eugene (EUG) with a selection of airlines offering convenient weekly flights on this domestic short-haul route. Explore various options, whether you prefer full-service airlines or are looking for cheap flights from Santa Rosa. This route allows you to easily plan your trip to experience Eugene’s renowned attractions and neighborhoods. Check out important details for Santa Rosa to Eugene flights to find the best airfare that fits your schedule and budget.

  • Fastest flight duration: around 3h 15m in-flight, plus roughly 1h 15m layover with one stop
  • Route distance: roughly 400 miles (645 km)
  • Flights per week: around 7 departures on average
  • Typical fares (one-way): economy tickets often range from $155–$515, depending on seasonality and how far ahead you book

Flights from Sonoma County Airport (STS) to Eugene Airport (EUG)

Based on the latest traveler bookings, here are the top airlines flying from Santa Rosa to Eugene, often preferred for their one-stop service. Popular layover options include Portland International Airport (PDX) with about a 1 hour and 15 minute layover, Seattle-Tacoma International Airport (SEA) with roughly a 2 hour layover, and Los Angeles International Airport (LAX) with a 45-minute layover. These choices allow you to combine price, total travel time, and cabin class to create the perfect itinerary for your journey.

  • Alaska Airlines: This full-service airline provides convenient one-stop travel, with one-way ticket prices generally falling between $155 and $630. Alaska Airlines operates around 89% of the flights on this route, with an in-flight duration of 3 hours and 15 minutes and an overall travel time of about 4 hours and 30 minutes, including layover time.

Alternative route from Santa Rosa (STS) to Eugene (EUG)

  • Santa Rosa to Corvallis (STS-CVO): Located approximately 27 miles from Eugene Airport (EUG), Corvallis Municipal Airport (CVO) serves as a regional gateway.

How to find the best prices for flights from Santa Rosa (STS) to Eugene (EUG)

Getting some of the best deals on flights from Santa Rosa to Eugene is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually found when booking 2 to 8 weeks in advance, which coincides with when most travelers make their reservations. Afternoon departures, between 12 PM and 6 PM, tend to offer lower prices and are also the most sought-after flight times. Additionally, flying on Friday often results in cheaper fares, while Thursday remains the most popular travel day.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.* Find Eugene hotel and flight deals.
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Eugene Airport from Sonoma County Airport

Eugene welcomes travelers from Santa Rosa with a range of transport options based on price, convenience, and proximity. For departures, Sonoma County Airport is roughly a 10-minute drive (covering about 9 miles) from central Santa Rosa. Here's how to reach Eugene efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Eugene, with options including free hotel shuttles and private rides, which can be arranged in advance with your hotel.
  • Car rental: Renting a car from Eugene Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Eugene Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Eugene Airport, Eugene Station, a train station, is about 7.4 miles away, providing a convenient option for those traveling to and from the airport.

Frequently asked questions

How much does a flight from Santa Rosa, CA (STS-Sonoma County) to Eugene, OR (EUG) cost?
You can find cheap one-way flights from $137 and cheap return flights from $285 Santa Rosa, CA (STS-Sonoma County) to Eugene, OR (EUG) with Expedia. One-way flights typically cost between $206 and $855, and return flights often range between $371 and $1440. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Santa Rosa, CA (STS-Sonoma County) to Eugene, OR (EUG) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Santa Rosa, CA (STS-Sonoma County) to Eugene, OR (EUG)?
The cheapest month to fly from STS to EUG is September when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Santa Rosa, CA (STS-Sonoma County) to Eugene, OR (EUG)?
Enter STS to EUG and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Santa Rosa, CA (STS-Sonoma County) to Eugene, OR (EUG)?
Alaska Airlines is one of the cheapest airlines offering connecting flights from Sonoma County (STS) to Mahlon Sweet Field (EUG), with round-trip tickets starting from around $972. This flight includes a layover in Las Vegas (LAS). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Santa Rosa, CA (STS-Sonoma County) to Eugene, OR (EUG)?
To find a cheap flight from Santa Rosa, CA (STS-Sonoma County) to Eugene, OR (EUG), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Santa Rosa, CA (STS-Sonoma County) to Eugene, OR (EUG)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Santa Rosa, CA (STS-Sonoma County) to Eugene, OR (EUG)?
The earliest flight from Sonoma County (STS) to Mahlon Sweet Field (EUG) typically departs at around 6:00 AM, operated by Alaska Airlines. This seasonal service is available in August and September, and an early flight can help you enjoy a full day in Eugene. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Santa Rosa, CA (STS-Sonoma County) to Eugene, OR (EUG)?
The most popular departure times for flights from Santa Rosa (STS) to Eugene (EUG) are from 6am to 9am. This time window accounts for around 30% of total traffic. Many major carriers, including Alaska Airlines and United Airlines, offer flights during this window. This timing is popular because it allows you to start your day early and make the most of your time in Eugene.
How long does it take to fly from Santa Rosa, CA (STS-Sonoma County) to Eugene, OR (EUG)?
Flying from STS to EUG with a connection usually takes about 7 hours, traveling roughly 388 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Santa Rosa, CA (STS-Sonoma County) to Eugene, OR (EUG)?
Select the "Business class" and "First class" filters when looking for STS to EUG flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Santa Rosa, CA (STS-Sonoma County) to Eugene, OR (EUG) flight with Expedia?
It's easy to earn miles on a Santa Rosa, CA (STS-Sonoma County) to Eugene, OR (EUG) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Eugene from Sonoma County (STS)?
From Sonoma County (STS), you can fly into Mahlon Sweet Field (EUG) to reach Eugene. Some flights may connect through major hubs like Los Angeles Intl. (LAX), Harry Reid Intl. (LAS), John Wayne (SNA) before reaching Eugene. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Santa Rosa, CA (STS-Sonoma County) to Eugene, OR (EUG) at the last minute?
Typically, booking a last minute flight from Santa Rosa, CA (STS-Sonoma County) to Eugene, OR (EUG) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Santa Rosa, CA (STS-Sonoma County) to Eugene, OR (EUG) flight and hotel package?
Securing a Santa Rosa, CA (STS-Sonoma County) to Eugene, OR (EUG) Eugene Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Santa Rosa, CA (STS-Sonoma County) to Eugene, OR (EUG)?
If you booked your Santa Rosa, CA (STS-Sonoma County) to Eugene, OR (EUG) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Sonoma County
Destination airport
Eugene
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines
Roundtrip price
$284
Distance
388 mi

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 September. 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 2026. 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

*Flight schedules are subject to change.

*Available to One Key members.

 

How to find the latest flight deals from Santa Rosa (STS) to Eugene (EUG)?

Last updated:

This page highlights the latest flight deals from Santa Rosa to Eugene (STS to EUG), including one-way and roundtrip options from multiple airlines. The deals featured here are updated regularly, so you’ll always find the most up-to-date prices and best available flights for your trip from Santa Rosa to Eugene.

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