$109 Cheap Flights from Colorado Springs (COS) to Eugene (EUG)

View $109 flight on Wed, Oct 15, 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 $109 for one-way flights and $209 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Sep 16 - Sat, Sep 20
COS
Colorado Springs
EUG
Eugene
$209 Roundtrip, found 6 days ago
$209
Roundtrip
found 6 days ago
Select United flight, departing Tue, Sep 16 from Colorado Springs to Eugene, returning Sat, Sep 20, priced at $209 found 6 days ago
United
Tue, Sep 16 - Sat, Sep 20
COS
Colorado Springs
EUG
Eugene
$214 Roundtrip, found 6 days ago
$214
Roundtrip
found 6 days ago
Select United flight, departing Tue, Sep 16 from Colorado Springs to Eugene, returning Sat, Sep 20, priced at $214 found 6 days ago
United
Wed, Oct 15 - Tue, Oct 21
COS
Colorado Springs
EUG
Eugene
$217 Roundtrip, found 2 days ago
$217
Roundtrip
found 2 days ago
Select United flight, departing Wed, Oct 15 from Colorado Springs to Eugene, returning Tue, Oct 21, priced at $217 found 2 days ago
United
Sat, Sep 20 - Wed, Sep 24
COS
Colorado Springs
EUG
Eugene
$219 Roundtrip, found 6 days ago
$219
Roundtrip
found 6 days ago
Select United flight, departing Sat, Sep 20 from Colorado Springs to Eugene, returning Wed, Sep 24, priced at $219 found 6 days ago
Delta
Tue, Sep 23 - Tue, Sep 30
COS
Colorado Springs
EUG
Eugene
$222 Roundtrip, found 1 day ago
$222
Roundtrip
found 1 day ago
Select Delta flight, departing Tue, Sep 23 from Colorado Springs to Eugene, returning Tue, Sep 30, priced at $222 found 1 day ago
United
Wed, Sep 17 - Tue, Sep 23
COS
Colorado Springs
EUG
Eugene
$224 Roundtrip, found 2 days ago
$224
Roundtrip
found 2 days ago
Select United flight, departing Wed, Sep 17 from Colorado Springs to Eugene, returning Tue, Sep 23, priced at $224 found 2 days ago
Delta
Tue, Sep 16 - Tue, Sep 30
COS
Colorado Springs
EUG
Eugene
$225 Roundtrip, found 2 days ago
$225
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Sep 16 from Colorado Springs to Eugene, returning Tue, Sep 30, priced at $225 found 2 days ago
United
Tue, Sep 16 - Tue, Sep 30
COS
Colorado Springs
EUG
Eugene
$227 Roundtrip, found 2 days ago
$227
Roundtrip
found 2 days ago
Select United flight, departing Tue, Sep 16 from Colorado Springs to Eugene, returning Tue, Sep 30, priced at $227 found 2 days ago
Southwest Airlines
Wed, Sep 17 - Wed, Sep 24
COS
Colorado Springs
EUG
Eugene
$262 Roundtrip, found 3 days ago
$262
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Wed, Sep 17 from Colorado Springs to Eugene, returning Wed, Sep 24, priced at $262 found 3 days ago
American Airlines
Tue, Sep 16 - Tue, Sep 30
COS
Colorado Springs
EUG
Eugene
$278 Roundtrip, found 2 days ago
$278
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Sep 16 from Colorado Springs to Eugene, returning Tue, Sep 30, priced at $278 found 2 days ago

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

September is typically the cheapest month to fly

From $194 - $500 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 $364
EUG
Mahlon Sweet Field
CheapestClosest
Average driving time to city center14 min
Flights from $364
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
$208
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 $109 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?
Snag a cheap one-way flight from $109 or cheap return flight from $209 from Colorado Springs Airport (COS) 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 Colorado Springs Airport (COS) to Mahlon Sweet Field Airport (EUG)?
September is the most affordable month to fly from COS to EUG. Timing your trip outside of the busy season is often the key to better flight prices.
What is the cheapest airline that flies from Colorado Springs Airport (COS) to Mahlon Sweet Field Airport (EUG)?
Use the filter tool on Expedia to compare airlines and find the most affordable carrier that'll fly you from COS to EUG. Then, sort your results by "Price (lowest to highest)" to snag the best deal available.
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.