$102 Cheap Flights from Washington (IAD) to Eugene (EUG)

View $102 flight on Tue, Sep 30, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Mahlon Sweet Field Airport (EUG)

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Cheap Flights from Washington to Eugene (IAD-EUG)

Prices were available within the past 7 days and start at $102 for one-way flights and $240 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Aug 30 - Wed, Sep 3
IAD
Washington
EUG
Eugene
$240 Roundtrip, found 2 hours ago
$240
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Sat, Aug 30 from Washington to Eugene, returning Wed, Sep 3, priced at $240 found 2 hours ago
Delta
Tue, Sep 30 - Wed, Oct 8
IAD
Washington
EUG
Eugene
$241 Roundtrip, found 14 hours ago
$241
Roundtrip
found 14 hours ago
Select Delta flight, departing Tue, Sep 30 from Washington to Eugene, returning Wed, Oct 8, priced at $241 found 14 hours ago
Delta
Sat, Sep 20 - Wed, Sep 24
IAD
Washington
EUG
Eugene
$244 Roundtrip, found 1 day ago
$244
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Sep 20 from Washington to Eugene, returning Wed, Sep 24, priced at $244 found 1 day ago
United
Sat, Aug 30 - Tue, Sep 2
IAD
Washington
EUG
Eugene
$245 Roundtrip, found 1 day ago
$245
Roundtrip
found 1 day ago
Select United flight, departing Sat, Aug 30 from Washington to Eugene, returning Tue, Sep 2, priced at $245 found 1 day ago
United
Sat, Aug 30 - Tue, Sep 2
IAD
Washington
EUG
Eugene
$248 Roundtrip, found 1 day ago
$248
Roundtrip
found 1 day ago
Select United flight, departing Sat, Aug 30 from Washington to Eugene, returning Tue, Sep 2, priced at $248 found 1 day ago
United
Sat, Aug 30 - Tue, Sep 2
IAD
Washington
EUG
Eugene
$269 Roundtrip, found 1 day ago
$269
Roundtrip
found 1 day ago
Select United flight, departing Sat, Aug 30 from Washington to Eugene, returning Tue, Sep 2, priced at $269 found 1 day ago
Alaska Airlines
Sat, Sep 6 - Wed, Sep 10
IAD
Washington
EUG
Eugene
$272 Roundtrip, found 2 hours ago
$272
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Sat, Sep 6 from Washington to Eugene, returning Wed, Sep 10, priced at $272 found 2 hours ago
Alaska Airlines
Fri, Oct 3 - Sat, Oct 11
IAD
Washington
EUG
Eugene
$275 Roundtrip, found 14 hours ago
$275
Roundtrip
found 14 hours ago
Select Alaska Airlines flight, departing Fri, Oct 3 from Washington to Eugene, returning Sat, Oct 11, priced at $275 found 14 hours ago
American Airlines
Thu, Sep 18 - Mon, Sep 22
IAD
Washington
EUG
Eugene
$283 Roundtrip, found 1 day ago
$283
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Sep 18 from Washington to Eugene, returning Mon, Sep 22, priced at $283 found 1 day ago
Hawaiian Airlines
Tue, Sep 30 - Fri, Oct 10
IAD
Washington
EUG
Eugene
$301 Roundtrip, found 14 hours ago
$301
Roundtrip
found 14 hours ago
Select Hawaiian Airlines flight, departing Tue, Sep 30 from Washington to Eugene, returning Fri, Oct 10, priced at $301 found 14 hours ago

Find the cheapest month to fly from Washington (IAD) to Eugene (EUG)

September is typically the cheapest month to fly

From $221 - $659 per traveler.

Graph displaying average flight prices per month

Alternative airports near Eugene

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Mahlon Sweet Field EUG. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $417
EUG
Mahlon Sweet Field
CheapestClosest
Average driving time to city center14 min
Flights from $417
Flights from Washington (IAD) to Eugene (EUG)
Origin airport
Washington Dulles Intl.
Destination airport
Eugene
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, Southwest Airlines, United
Roundtrip price
$240
Distance
2362 mi

Washington to Eugene Flights

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

 

The best time to book a flight from Washington to Eugene

Sunday is one of the best days to book for cheap flights from Washington 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 Washington 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 Washington to Eugene in 2025. You can also book with separate airlines for your outbound and return journeys, from $102 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 Washington 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 Washington 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 Washington Dulles Intl. Airport (IAD) to Mahlon Sweet Field Airport (EUG) cost?
Snag a cheap one-way flight from $102 or cheap return flight from $240 from Washington Dulles Intl. Airport (IAD) to Mahlon Sweet Field Airport (EUG) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Mahlon Sweet Field Airport (EUG)?
Traveling in August is a good way to save, as it's the cheapest month for flights between IAD and EUG. You'll usually find the lowest prices during off-peak months.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Mahlon Sweet Field Airport (EUG)?
To find the cheapest airline flying from IAD to EUG, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Mahlon Sweet Field Airport (EUG)?
Nonstop flights from Washington Dulles Intl. Airport (IAD) to Mahlon Sweet Field Airport (EUG) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from IAD to EUG?
Usually you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can change depending on the time of year, carrier 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 Washington Dulles Intl. Airport (IAD) to Mahlon Sweet Field Airport (EUG)?
To avoid potential delays on the Washington Dulles Intl. Airport (IAD) to Mahlon Sweet Field Airport (EUG) route, travel before 3 PM. Departures after this hour have a 22% higher chance of being 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 Washington Dulles Intl. Airport (IAD) to Mahlon Sweet Field Airport (EUG) last-minute?
Waiting until just before your trip to book a ticket from IAD to EUG often results in higher prices. While it's possible to find some last-minute discounts, there's no guarantee. Be flexible with your travel plans to boost your chances of getting a bargain.
Is it cheaper to book an IAD to EUG flight and hotel package?
You can save money by securing an IAD to EUG flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. After choosing your preferred flights and accommodations, consider adding extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Mahlon Sweet Field Airport (EUG)?
If you reserved your IAD to EUG flight in the last 24 hours, you may be able to cancel or modify it without 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 for further details.

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*Available to One Key members.