$179 Cheap Flights from San José (SJO) to Eugene (EUG)

View $179 flight on Tue, Aug 19, 2025Opens in a new window

Popular airlines from Juan Santamaria Intl. Airport (SJO) to Mahlon Sweet Field Airport (EUG)

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Find available prices by choosing your travel dates.

Cheap Flights from San José to Eugene (SJO-EUG)

Prices were available within the past 7 days and start at $179 for one-way flights and $308 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, May 24 - Mon, Jun 2
SJO
San José
EUG
Eugene
$308 Roundtrip, found 3 days ago
$308
Roundtrip
found 3 days ago
Select United flight, departing Sat, May 24 from San José to Eugene, returning Mon, Jun 2, priced at $308 found 3 days ago
United
Tue, May 27 - Thu, May 29
SJO
San José
EUG
Eugene
$310 Roundtrip, found 3 days ago
$310
Roundtrip
found 3 days ago
Select United flight, departing Tue, May 27 from San José to Eugene, returning Thu, May 29, priced at $310 found 3 days ago
United
Sun, May 25 - Tue, May 27
SJO
San José
EUG
Eugene
$313 Roundtrip, found 3 days ago
$313
Roundtrip
found 3 days ago
Select United flight, departing Sun, May 25 from San José to Eugene, returning Tue, May 27, priced at $313 found 3 days ago
United
Tue, May 27 - Sat, May 31
SJO
San José
EUG
Eugene
$314 Roundtrip, found 3 days ago
$314
Roundtrip
found 3 days ago
Select United flight, departing Tue, May 27 from San José to Eugene, returning Sat, May 31, priced at $314 found 3 days ago
American Airlines
Fri, May 9 - Tue, May 13
SJO
San José
EUG
Eugene
$320 Roundtrip, found 3 days ago
$320
Roundtrip
found 3 days ago
Select American Airlines flight, departing Fri, May 9 from San José to Eugene, returning Tue, May 13, priced at $320 found 3 days ago
United
Sat, May 24 - Mon, May 26
SJO
San José
EUG
Eugene
$320 Roundtrip, found 3 days ago
$320
Roundtrip
found 3 days ago
Select United flight, departing Sat, May 24 from San José to Eugene, returning Mon, May 26, priced at $320 found 3 days ago
United
Sat, May 24 - Fri, Jun 6
SJO
San José
EUG
Eugene
$327 Roundtrip, found 3 days ago
$327
Roundtrip
found 3 days ago
Select United flight, departing Sat, May 24 from San José to Eugene, returning Fri, Jun 6, priced at $327 found 3 days ago
Alaska Airlines
Thu, May 29 - Sun, Jun 1
SJO
San José
EUG
Eugene
$397 Roundtrip, found 3 days ago
$397
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu, May 29 from San José to Eugene, returning Sun, Jun 1, priced at $397 found 3 days ago
Southwest Airlines
Fri, May 9 - Wed, May 14
SJO
San José
EUG
Eugene
$518 Roundtrip, found 3 days ago
$518
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Fri, May 9 from San José to Eugene, returning Wed, May 14, priced at $518 found 3 days ago
Delta
Thu, Aug 7 - Thu, Aug 14
SJO
San José
EUG
Eugene
$639 Roundtrip, found 10 hours ago
$639
Roundtrip
found 10 hours ago
Select Delta flight, departing Thu, Aug 7 from San José to Eugene, returning Thu, Aug 14, priced at $639 found 10 hours ago
Flights from San José (SJO) to Eugene (EUG)
Origin airport
Juan Santamaría Intl.
Destination airport
Eugene
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines, United, avianca
Roundtrip price
$308
Distance
3310 mi

San José to Eugene Flights

The cheapest times to fly from San José 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 San José to Eugene are during the month of May. You can find some of the cheapest flights from San José to Eugene with Expedia's search tool and vast selection of airlines.

The best time to book a flight from San José to Eugene

Sunday is one of the best days to book for cheap flights from San José 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 San José 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 San José to Eugene in 2025. You can also book with separate airlines for your outbound and return journeys, from $179 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 San José 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 San José 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.

Frequently asked questions

How much does a flight from Juan Santamaria Intl. Airport (SJO) to Mahlon Sweet Field Airport (EUG) cost?
Discover the latest flight deals from SJO to EUG by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from SJO to EUG?
The cheapest flights from SJO to EUG are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from SJO to EUG?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from SJO to EUG. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Juan Santamaria Intl. Airport (SJO) to Mahlon Sweet Field Airport (EUG)?
Direct flights from Juan Santamaria Intl. Airport (SJO) 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 dates and click on either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from SJO to EUG?
Typically you’ll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can vary depending on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Juan Santamaria Intl. Airport (SJO) to Mahlon Sweet Field Airport (EUG)?
To reach Mahlon Sweet Field Airport (EUG) on schedule, pick a flight that leaves Juan Santamaria Intl. Airport (SJO) before 3 PM. The chance 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.
Is it cheaper to buy a plane ticket from Juan Santamaria Intl. Airport (SJO) to Mahlon Sweet Field Airport (EUG) last-minute?
Waiting until right before your break to book your flight from SJO to EUG often results in higher prices. While you may come across some last-minute offers, there’s no guarantee. Allow some flexibility in your schedule to boost your chances of landing a bargain.
Is it cheaper to book a SJO to EUG flight and hotel package?
Securing a SJO to EUG flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Select from our impressive range of stays and then add flights, activities and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Juan Santamaria Intl. Airport (SJO) to Mahlon Sweet Field Airport (EUG)?
If you booked your SJO to EUG flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for further details.

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*Available to One Key members.