$385 Flights from Santa Rosa (STS) to Eugene (EUG)

Compare Santa Rosa to Eugene flight deals

Find the cheapest month or even day of the year to fly to Eugene

Book the best Eugene fare with no extra fees

Flight deals from Santa Rosa to Eugene

Looking for a cheap last-minute deal or the best round-trip flight from Santa Rosa to Eugene? Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Santa Rosa to Eugene

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Santa Rosa to Eugene flights are currently cheapest in March.

Santa Rosa to Eugene: Alternative routes

Compare routes from Santa Rosa to Eugene below. You may find an airport to fly into that's cheaper, faster, or easier than Eugene.

Santa Rosa to Eugene: Flight information

The things to know before you go.
Cheapest flight found$385
Cheapest month to flyMarch

Finding cheap flights from Santa Rosa to Eugene: Frequently asked questions

The best price we found for a round-trip flight from Santa Rosa to Eugene is $321. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Santa Rosa to Eugene. But we found flights with one or more stops from $321.
There are no flights flying from Santa Rosa to Eugene, as of February 2026.
The cheapest month to fly from Santa Rosa to Eugene is usually March.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Santa Rosa Airport to Eugene Airport on Thursday, March 26, 2026.
No airlines currently offer direct flights between Santa Rosa Airport and Eugene Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Eugene but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Eugene is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Alaska Airlines offers the cheapest flight tickets to Eugene.

Flying from Sonoma County Airport (STS) to Mahlon Sweet Field Airport (EUG): what you need to know

  • Your STS to EUG flight won't wait if you're running late, so be at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • You'll likely experience longer queues in popular months like October. Arriving up to four hours in advance for international flights and two hours for domestic departures is a smart move.

  • Break up your flight or explore another city along the way with a stopover. Just uncheck 'Direct flights only' to see your options when searching for tickets from Sonoma County Airport to Mahlon Sweet Field Airport. Many passengers pass through Phoenix Sky Harbor International Airport on this route.

How to find the cheapest flights from Sonoma County Airport (STS) to Mahlon Sweet Field Airport (EUG)

  • The cheapest price we've seen for a one-way Sonoma County Airport to Mahlon Sweet Field Airport flight is $385. A return fare is currently $321. Depending on the availability and when you book, these fares could change.

  • To score cheap tickets from STS to EUG, book in advance. Airlines tend to offer lower prices when flights are first made available.

  • The 'Whole month' search tool shows you the cheapest flights from Sonoma County Airport to Mahlon Sweet Field Airport across the entire month. It's an easy way to find a bargain if your plans aren't set in stone.

  • There's no need to check every day to see if fares have gone down when you create a Price Alert. We'll update you as soon as there's a better deal on cheap flights from STS to EUG.

  • Lock in the ideal flight for you by using the filters. To see the 'Best,' 'Cheapest' or 'Fastest' flights from Sonoma County Airport to Mahlon Sweet Field Airport, use the 'Sort by' function. You can also filter by airline, arrival and departure times, and journey duration.

Handy information about Sonoma County Airport (STS)

  • STS is located at 2200 Airport Boulevard.

  • When it comes to Sonoma County Airport's on-time performance, data shows 73.45% of flights arrive within the expected timeframe.

  • Sonoma County Airport is around 8 miles from central Santa Rosa. If you're driving, catching a cab or ride-sharing from the center, it'll take you 15 minutes or so to arrive, depending on the traffic.

  • The trip on public transport will take about 35 minutes.

  • Booked an early flight from Sonoma County Airport to Mahlon Sweet Field Airport? Avoid rushing to the airport (and sneak in some extra snooze time) by choosing one of these stays near STS:

Arriving at Mahlon Sweet Field Airport (EUG)

  • Hop off your Sonoma County Airport to Mahlon Sweet Field Airport flight and be sprawled out in your hotel bed soon after. If you're looking for a handy option within easy reach of EUG, stay at Hampton Inn Eugene.

  • Go wherever you want, whenever you want with a Mahlon Sweet Field Airport rental car. Pick up your wheels from Dollar, Budget or Hertz and venture far and wide through Eugene and beyond.

  • Reserving your ride from Mahlon Sweet Field Airport about three weeks ahead gives you the best chance of locking in a great deal.

Getting from Mahlon Sweet Field Airport (EUG) to central Eugene

  • You'll find EUG at 28801 Douglas Dr.

  • From Mahlon Sweet Field Airport, Eugene is approximately 11 miles away. It takes around 20 minutes to reach the center by car.

When to fly to Mahlon Sweet Field Airport (EUG)

  • July is the busiest month for flights from Sonoma County Airport to Mahlon Sweet Field Airport. To skip the crowds, head to Eugene in May.

  • When booking your flight from Sonoma County Airport to Mahlon Sweet Field Airport, think about the kind of weather you enjoy. August is the warmest month in Eugene, with temperatures ranging from 48ºF to 88ºF.

  • Look for cheap tickets from STS to EUG in February if you want to travel in cooler conditions. Temperatures are at their lowest around then, ranging between 30ºF and 55ºF on average.

Explore more of United States

  • Seattle is just one of the many cities in United States waiting to be explored after you've seen Eugene. Around 250 miles away to the north, check out popular attractions including Greyhound: Bus Station, LMN Architects and Boeing Radiation Effects Lab.

  • Around 100 miles north of Eugene, Portland is another favorite stop in United States. No visit is complete without checking out Pioneer Courthouse Square, Portland Japanese Garden and Pittock Mansion.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.