The cheapest times to fly from EUG to SEA are

  • January 8th to March 4th
  • March 26th to July 15th (except the weeks of April 9th, April 16th, June 11th, and June 18th)
  • October 8th to November 18th (except the week of October 22nd)

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from EUG to SEA is late May to early June. Prices can be as high as $387 for Sunday flights during mid March, or as low as $97 for Tuesday flights around late May to early June.


When to Fly to Seattle

Flying from Eugene, OR (EUG) to Seattle, WA (SEA) will usually cost between $117 to $180 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late May to early June with an average ticket price of $100. Due to high demand the most expensive time to fly is mid March, with an average price of $263. Planning your trip to low-cost times can easily save you $163 on economy flights and even more on first-class flights. Generally, any price below $138 can be considered a good price for a round-trip EUG to SEA flight.

See below for a graph of average weekly prices for the EUG to SEA route. All prices are for round-trip tickets in USD.

EUG to SEA Flight Prices

Compared to other flights, the EUG to SEA flight is much cheaper than the average and costs much less than the average flight leaving from Eugene. The average price per mile (for a direct flight) is $0.37, which is a bit above average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $15 (10%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $140. Return trip prices are from the SEA to EUG flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from EUG to SEA can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 1 hour 24 minutes may be realistic.


Flight Questions Answered

Still have questions about flying from EUG to SEA? We’ve got answers.

Which airlines fly this route?

You can find 5 major airlines flying this route most often: Alaska, American, Delta, Singapore Airlines, United, and potentially more during busy seasons.

How far away is it from Seattle/Tacoma International Airport to Mahlon Sweet Field Airport?

The distance between the two airports is roughly 234 miles or 377 kilometers.

How long does it take to fly from EUG to SEA?

The real-world flight time for a nonstop EUG to SEA flight is about 1 hour 24 minutes.

How many flights go between Eugene, OR and Seattle, WA?

It depends on the day of the week and the date, but a typical day might have around 67 available flights from EUG to SEA.


Airport Location Info


Departing Airport

Origination code EUG
Origination airport name Mahlon Sweet Field Airport
City Eugene, OR
Country the United States
Latitude 44.1
Longitude -123.2

Return Airport

Destination code SEA
Destination airport name Seattle/Tacoma International Airport
City Seattle, WA
Country the United States
Latitude 47.5
Longitude -122.3


Late and Early Flight Data

Flights from EUG to SEA tend to depart late far less frequently than the average flight. According to our recently updated data, 17% of flights departed 5 or more minutes late, and 34% of flights left 5 or more minutes early. On average you can expect to leave SEA heading for EUG about 7 minutes late. This does significantly impact arrival time, as the average landing time in Seattle, WA is about 5 minutes late. The numbers below show a recent average of take-off times versus the scheduled departure flight:

  • SkyWest: 7 minutes late
  • Some airlines not reporting


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.