$78 Cheap Flights from Eugene (EUG) to Seattle (SEA)

View $78 flight on Sat, Oct 25, 2025Opens in a new window

Popular airlines from Mahlon Sweet Field Airport (EUG) to Seattle-Tacoma International Airport (SEA)

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Today's featured flight deals from Mahlon Sweet Field Airport (EUG) to Seattle-Tacoma International Airport (SEA)

Nonstop
Carry-on included
Lower price than typical

Cheap Flights from Eugene to Seattle (EUG-SEA)

Prices were available within the past 7 days and start at $78 for one-way flights and $105 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Oct 16 - Tue, Oct 21
EUG
Eugene
SEA
Seattle
$105 Roundtrip, found 4 hours ago
$105
Roundtrip
found 4 hours ago
Select Delta flight, departing Thu, Oct 16 from Eugene to Seattle, returning Tue, Oct 21, priced at $105 found 4 hours ago
Delta
Fri, Nov 14 - Sat, Nov 22
EUG
Eugene
SEA
Seattle
$121 Roundtrip, found 8 hours ago
$121
Roundtrip
found 8 hours ago
Select Delta flight, departing Fri, Nov 14 from Eugene to Seattle, returning Sat, Nov 22, priced at $121 found 8 hours ago
Delta
Mon, Nov 17 - Tue, Nov 18
EUG
Eugene
SEA
Seattle
$133 Roundtrip, found 8 hours ago
$133
Roundtrip
found 8 hours ago
Select Delta flight, departing Mon, Nov 17 from Eugene to Seattle, returning Tue, Nov 18, priced at $133 found 8 hours ago
Hawaiian Airlines
Tue, Oct 14 - Wed, Oct 29
EUG
Eugene
SEA
Seattle
$137 Roundtrip, found 21 hours ago
$137
Roundtrip
found 21 hours ago
Select Hawaiian Airlines flight, departing Tue, Oct 14 from Eugene to Seattle, returning Wed, Oct 29, priced at $137 found 21 hours ago
Delta
Fri, Oct 10 - Tue, Oct 28
EUG
Eugene
SEA
Seattle
$145 Roundtrip, found 12 hours ago
$145
Roundtrip
found 12 hours ago
Select Delta flight, departing Fri, Oct 10 from Eugene to Seattle, returning Tue, Oct 28, priced at $145 found 12 hours ago
Alaska Airlines
Tue, Oct 7 - Wed, Oct 15
EUG
Eugene
SEA
Seattle
$155 Roundtrip, found 5 hours ago
$155
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Tue, Oct 7 from Eugene to Seattle, returning Wed, Oct 15, priced at $155 found 5 hours ago
Alaska Airlines
Sat, Oct 11 - Sun, Oct 12
EUG
Eugene
SEA
Seattle
$157 Roundtrip, found 6 hours ago
$157
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Sat, Oct 11 from Eugene to Seattle, returning Sun, Oct 12, priced at $157 found 6 hours ago
Delta
Mon, Nov 17 - Wed, Nov 19
EUG
Eugene
SEA
Seattle
$159 Roundtrip, found 8 hours ago
$159
Roundtrip
found 8 hours ago
Select Delta flight, departing Mon, Nov 17 from Eugene to Seattle, returning Wed, Nov 19, priced at $159 found 8 hours ago
Southwest Airlines
Tue, Oct 21 - Tue, Oct 28
EUG
Eugene
SEA
Seattle
$202 Roundtrip, found 6 days ago
$202
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Tue, Oct 21 from Eugene to Seattle, returning Tue, Oct 28, priced at $202 found 6 days ago
United
Tue, Oct 7 - Wed, Oct 15
EUG
Eugene
SEA
Seattle
$421 Roundtrip, found 5 hours ago
$421
Roundtrip
found 5 hours ago
Select United flight, departing Tue, Oct 7 from Eugene to Seattle, returning Wed, Oct 15, priced at $421 found 5 hours ago

Find the cheapest month to fly from Eugene (EUG) to Seattle (SEA)

February is typically the cheapest month to fly

From $76 - $217 per traveler.

Frequently asked questions

How much does a flight from Mahlon Sweet Field Airport (EUG) to Seattle - Tacoma Intl. Airport (SEA) cost?
Secure a cheap one-way flight from $78 or cheap return flight from $105 from Mahlon Sweet Field Airport (EUG) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Mahlon Sweet Field Airport (EUG) to Seattle - Tacoma Intl. Airport (SEA)?
Planning your getaway for October is a good way to save, as it's the cheapest month for flights between EUG and SEA. You'll typically find the lowest prices during the off-season.
Which airlines fly direct from Mahlon Sweet Field Airport (EUG) to Seattle - Tacoma Intl. Airport (SEA)?
You can fly nonstop from Mahlon Sweet Field Airport (EUG) to Seattle - Tacoma Intl. Airport (SEA) on an Alaska Airlines flight.
What is the cheapest airline that flies from Mahlon Sweet Field Airport (EUG) to Seattle - Tacoma Intl. Airport (SEA)?
Delta Air Lines and Alaska Airlines are some well-known airlines offering competitive fares. Remember that flight prices from Mahlon Sweet Field Airport (EUG) to Seattle - Tacoma Intl. Airport (SEA) can change based on departure dates, demand and how early you book. With Expedia's search tool, you can easily find an EUG to SEA flight that matches your preferences and budget.
How many flights per day from Mahlon Sweet Field Airport (EUG) to Seattle - Tacoma Intl. Airport (SEA)?
With, on average, 6 direct flights departing from Mahlon Sweet Field Airport (EUG) to Seattle - Tacoma Intl. Airport (SEA) every day, you'll be jetting off in no time.
What are the most popular departure times for flights from Mahlon Sweet Field Airport (EUG) to Seattle - Tacoma Intl. Airport (SEA)?
The 6 AM departures from EUG to SEA are the top choice for many travelers. Prices can be higher for these popular slots. If you want to save on your trip, pick a less crowded time to fly.
What day of the week has the most flights from EUG to SEA?
If you fly on a Friday, you'll get the biggest range of choices for flights from Mahlon Sweet Field Airport (EUG) to Seattle - Tacoma Intl. Airport (SEA).
What is the earliest flight from Mahlon Sweet Field Airport (EUG) to Seattle - Tacoma Intl. Airport (SEA)?
Mahlon Sweet Field Airport (EUG)'s first flight to Seattle - Tacoma Intl. Airport (SEA) leaves at approximately 5:00AM UTC-8. With a flight time of 1h 30m, you'll arrive at around 6:30AM UTC-8.
How long does it take to fly from Mahlon Sweet Field Airport (EUG) to Seattle - Tacoma Intl. Airport (SEA)?
The average flight duration from EUG to SEA is 1 hour and 17 minutes, covering a distance of 230 mi.
What airline has the least delays from EUG to SEA?
Consider traveling with Virgin Atlantic if you'd like to go straight from Mahlon Sweet Field Airport (EUG) to Seattle - Tacoma Intl. Airport (SEA) without any holdups. This airline has the strongest track record for punctuality, with an on-time score of 93%. Want real-time updates? You can keep an eye on your flight status using the Expedia App.
What is the best time to fly from Mahlon Sweet Field Airport (EUG) to Seattle - Tacoma Intl. Airport (SEA)?
Opt for a flight from Mahlon Sweet Field Airport (EUG) to Seattle - Tacoma Intl. Airport (SEA) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures after this hour have a 22% higher chance of being canceled, on average.**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 Seattle from Mahlon Sweet Field Airport (EUG)?
Browse your flight options from Mahlon Sweet Field Airport (EUG) to Seattle - Tacoma Intl. Airport (SEA). This is the only Seattle airport you can jet into if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Mahlon Sweet Field Airport (EUG) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Last-minute bookings from EUG to SEA are generally more expensive. For the cheapest rates, start searching for flights ahead of time. That said, if you're flexible with your travel dates, it's possible to land a cheap ticket just before your departure.
Is it cheaper to book an EUG to SEA flight and hotel package?
You'll generally save money by booking an EUG to SEA flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. Once you've chosen your ideal flights and accommodations, you can add extras like car rentals, activities and tours.
Can I cancel or change the date of my flight from Mahlon Sweet Field Airport (EUG) to Seattle - Tacoma Intl. Airport (SEA)?
If you booked your EUG to SEA flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

Travel information

Travel information

Origin airport
Eugene
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, Southwest Airlines, United
Roundtrip price
$105
Distance
233 mi
Average flight time
1 hour 19 mins

Book with confidence

Book with confidence

Eugene to Seattle Flights

The cheapest times to fly from Eugene to Seattle

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

 

The best time to book a flight from Eugene to Seattle

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

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 Eugene to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $78 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 Eugene to Seattle 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 Eugene to Seattle 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.

 

Eugene to Seattle Flights

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