$99 Cheap Flights from Colorado Springs (COS) to Eugene (EUG)

View $99 flight on Tue, Aug 26, 2025Opens in a new window

Popular airlines from Colorado Springs Airport (COS) to Mahlon Sweet Field Airport (EUG)

Cheap Flights from Colorado Springs to Eugene (COS-EUG)

Prices were available within the past 7 days and start at $99 for one-way flights and $197 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Tue, Sep 23 - Mon, Sep 29
COS
Colorado Springs
EUG
Eugene
$197 Roundtrip, found 1 day ago
$197
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Tue, Sep 23 from Colorado Springs to Eugene, returning Mon, Sep 29, priced at $197 found 1 day ago
Southwest Airlines
Thu, Sep 11 - Mon, Sep 15
COS
Colorado Springs
EUG
Eugene
$202 Roundtrip, found 4 days ago
$202
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Thu, Sep 11 from Colorado Springs to Eugene, returning Mon, Sep 15, priced at $202 found 4 days ago
Delta
Wed, Oct 15 - Tue, Nov 4
COS
Colorado Springs
EUG
Eugene
$202 Roundtrip, found 1 day ago
$202
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Oct 15 from Colorado Springs to Eugene, returning Tue, Nov 4, priced at $202 found 1 day ago
United
Thu, Sep 11 - Mon, Sep 15
COS
Colorado Springs
EUG
Eugene
$207 Roundtrip, found 4 days ago
$207
Roundtrip
found 4 days ago
Select United flight, departing Thu, Sep 11 from Colorado Springs to Eugene, returning Mon, Sep 15, priced at $207 found 4 days ago
United
Mon, Sep 22 - Tue, Sep 30
COS
Colorado Springs
EUG
Eugene
$212 Roundtrip, found 1 day ago
$212
Roundtrip
found 1 day ago
Select United flight, departing Mon, Sep 22 from Colorado Springs to Eugene, returning Tue, Sep 30, priced at $212 found 1 day ago
Southwest Airlines
Thu, Sep 4 - Mon, Sep 8
COS
Colorado Springs
EUG
Eugene
$212 Roundtrip, found 4 days ago
$212
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Thu, Sep 4 from Colorado Springs to Eugene, returning Mon, Sep 8, priced at $212 found 4 days ago
Delta
Wed, Nov 19 - Sat, Dec 6
COS
Colorado Springs
EUG
Eugene
$217 Roundtrip, found 1 day ago
$217
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Nov 19 from Colorado Springs to Eugene, returning Sat, Dec 6, priced at $217 found 1 day ago
United
Fri, Sep 5 - Tue, Sep 9
COS
Colorado Springs
EUG
Eugene
$221 Roundtrip, found 1 day ago
$221
Roundtrip
found 1 day ago
Select United flight, departing Fri, Sep 5 from Colorado Springs to Eugene, returning Tue, Sep 9, priced at $221 found 1 day ago
United
Fri, Sep 5 - Tue, Sep 9
COS
Colorado Springs
EUG
Eugene
$226 Roundtrip, found 1 day ago
$226
Roundtrip
found 1 day ago
Select United flight, departing Fri, Sep 5 from Colorado Springs to Eugene, returning Tue, Sep 9, priced at $226 found 1 day ago
American Airlines
Mon, Sep 22 - Tue, Sep 30
COS
Colorado Springs
EUG
Eugene
$268 Roundtrip, found 1 day ago
$268
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Sep 22 from Colorado Springs to Eugene, returning Tue, Sep 30, priced at $268 found 1 day ago

Find the cheapest month to fly from Colorado Springs (COS) to Eugene (EUG)

September is typically the cheapest month to fly

From $214 - $506 per traveler.

Graph displaying average flight prices per month

Flights from Colorado Springs (COS) to Eugene (EUG)
Origin airport
Colorado Springs
Destination airport
Eugene
Airlines serving
American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$196
Distance
1023 mi

Colorado Springs to Eugene Flights

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

 

The best time to book a flight from Colorado Springs to Eugene

Sunday is one of the best days to book for cheap flights from Colorado Springs 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 Colorado Springs 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 Colorado Springs to Eugene in 2025. You can also book with separate airlines for your outbound and return journeys, from $99 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 Colorado Springs 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 Colorado Springs 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 Colorado Springs Airport (COS) to Mahlon Sweet Field Airport (EUG) cost?
Discover the latest flight deals from COS 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 COS to EUG?
The cheapest flights from COS 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 COS to EUG?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from COS to EUG. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Colorado Springs Airport (COS) to Mahlon Sweet Field Airport (EUG)?
There are no daily nonstop flights departing from Colorado Springs Airport (COS) to Mahlon Sweet Field Airport (EUG). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from COS to EUG?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change based on a range of factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Colorado Springs Airport (COS) to Mahlon Sweet Field Airport (EUG)?
Book a flight from Colorado Springs Airport (COS) to Mahlon Sweet Field Airport (EUG) that leaves before 3 PM to reduce the risk of delays and cancellations. Later departures are on average 22% more likely to be 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 Colorado Springs Airport (COS) to Mahlon Sweet Field Airport (EUG) last-minute?
Last-minute fares from COS to EUG are generally more expensive. To secure the cheapest rates, start searching for flights well in advance. That being said, if you can play around with your travel dates, it's possible to find a cheap fare right before you leave.
Is it cheaper to book a COS to EUG flight and hotel package?
You'll generally save money by booking a COS to EUG flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. After selecting your ideal flights and accommodations, consider adding extras like activities, car rentals and tours.
Can I cancel or change the date of my flight from Colorado Springs Airport (COS) to Mahlon Sweet Field Airport (EUG)?
In most instances, you can modify or cancel your COS to EUG flight. However, additional charges may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you'd like further details, go to our Customer Service portal.

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*Available to One Key members.