$131 Cheap Southwest Airlines flights Denver (DEN) to Eugene (EUG)

You can discover cheap round-trip Southwest Airlines flights from $251 from DEN to EUG by filtering your results from "Price (lowest to highest)" on Expedia. Or search for bargains from $131 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Search for affordable Southwest Airlines flights from Denver Intl. Airport (DEN) to Mahlon Sweet Field Airport (EUG) one to three months ahead of your departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare type and journey, the ideal day to book a domestic flight is usually Sunday and the most expensive day is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.

Find Southwest Airlines's earliest flights from DEN to EUG by using the "Early Morning" and "Morning" filters. Not only will you get to your destination sooner, early departures are also 20% less likely to be canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.