$701 Cheap Flights from Decatur (DEC) to Colorado Springs (COS)

View $701 flight on Wed, Jul 23, 2025Opens in a new window

Popular airlines from Decatur, IL (DEC) to Colorado Springs Airport (COS)

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Cheap Flights from Decatur to Colorado Springs (DEC-COS)

Prices were available within the past 7 days and start at $701 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Decatur (DEC) to Colorado Springs (COS)
Origin airport
Decatur
Destination airport
Colorado Springs
Distance
847 mi

Decatur to Colorado Springs Flights

The cheapest times to fly from Decatur to Colorado Springs

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

 

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

Sunday is one of the best days to book for cheap flights from Decatur to Colorado Springs: 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 Decatur to Colorado Springs

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 Decatur to Colorado Springs in 2025. You can also book with separate airlines for your outbound and return journeys, from $701 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 Decatur to Colorado Springs 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 Decatur to Colorado Springs 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 Decatur Airport (DEC) to Colorado Springs Airport (COS) cost?
Discover the latest flight deals from DEC to COS 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 DEC to COS?
The cheapest flights from DEC to COS 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 DEC to COS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from DEC to COS. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Decatur Airport (DEC) to Colorado Springs Airport (COS)?
Nonstop flights from Decatur Airport (DEC) to Colorado Springs Airport (COS) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DEC to COS?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Decatur Airport (DEC) to Colorado Springs Airport (COS)?
To reach Colorado Springs Airport (COS) on time, opt for a flight that leaves from Decatur Airport (DEC) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Decatur Airport (DEC) to Colorado Springs Airport (COS) last-minute?
Holding off until right before your break to book your flight from DEC to COS often results in higher prices. While it's possible to find some last-minute discounts, they aren't always guaranteed. Keep your travel plans flexible for a better chance of snagging a bargain.
Is it cheaper to book a DEC to COS flight and hotel package?
Compared with arranging hotels and flights separately, booking a DEC to COS flight and hotel package with Expedia could lead to significant savings. Better yet, having it all in one place will take the hassle out of travel planning. Simply pick your flights and choose from our extensive range of stays, then personalize your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Decatur Airport (DEC) to Colorado Springs Airport (COS)?
Typically, it's possible to reschedule or cancel your DEC to COS flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

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*Available to One Key members.