$49 Cheap Flights from Colorado Springs (COS) to Denver (DEN)

View $49 flight on Mon, Sep 22, 2025Opens in a new window

Popular airlines from Colorado Springs Airport (COS) to Denver Intl. Airport (DEN)

Cheap Flights from Colorado Springs to Denver (COS-DEN)

Prices were available within the past 7 days and start at $49 for one-way flights and $97 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Sep 10 - Sat, Sep 20
COS
Colorado Springs
DEN
Denver
$97 Roundtrip, found 1 day ago
$97
Roundtrip
found 1 day ago
Select United flight, departing Wed, Sep 10 from Colorado Springs to Denver, returning Sat, Sep 20, priced at $97 found 1 day ago
United
Wed, Sep 10 - Sat, Sep 20
COS
Colorado Springs
DEN
Denver
$118 Roundtrip, found 1 day ago
$118
Roundtrip
found 1 day ago
Select United flight, departing Wed, Sep 10 from Colorado Springs to Denver, returning Sat, Sep 20, priced at $118 found 1 day ago
United
Thu, Sep 25 - Mon, Oct 6
COS
Colorado Springs
DEN
Denver
$119 Roundtrip, found 3 days ago
$119
Roundtrip
found 3 days ago
Select United flight, departing Thu, Sep 25 from Colorado Springs to Denver, returning Mon, Oct 6, priced at $119 found 3 days ago
United
Wed, Sep 10 - Sat, Sep 20
COS
Colorado Springs
DEN
Denver
$127 Roundtrip, found 1 day ago
$127
Roundtrip
found 1 day ago
Select United flight, departing Wed, Sep 10 from Colorado Springs to Denver, returning Sat, Sep 20, priced at $127 found 1 day ago
United
Wed, Sep 10 - Sat, Sep 20
COS
Colorado Springs
DEN
Denver
$138 Roundtrip, found 1 day ago
$138
Roundtrip
found 1 day ago
Select United flight, departing Wed, Sep 10 from Colorado Springs to Denver, returning Sat, Sep 20, priced at $138 found 1 day ago
Southwest Airlines
Wed, Sep 3 - Fri, Sep 5
COS
Colorado Springs
DEN
Denver
$139 Roundtrip, found 2 hours ago
$139
Roundtrip
found 2 hours ago
Select Southwest Airlines flight, departing Wed, Sep 3 from Colorado Springs to Denver, returning Fri, Sep 5, priced at $139 found 2 hours ago
United
Thu, Sep 25 - Mon, Oct 6
COS
Colorado Springs
DEN
Denver
$140 Roundtrip, found 3 days ago
$140
Roundtrip
found 3 days ago
Select United flight, departing Thu, Sep 25 from Colorado Springs to Denver, returning Mon, Oct 6, priced at $140 found 3 days ago
Southwest Airlines
Tue, Aug 26 - Wed, Aug 27
COS
Colorado Springs
DEN
Denver
$146 Roundtrip, found 2 days ago
$146
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Tue, Aug 26 from Colorado Springs to Denver, returning Wed, Aug 27, priced at $146 found 2 days ago
Delta
Sat, Aug 30 - Sat, Sep 13
COS
Colorado Springs
DEN
Denver
$384 Roundtrip, found 4 days ago
$384
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Aug 30 from Colorado Springs to Denver, returning Sat, Sep 13, priced at $384 found 4 days ago
American Airlines
Sat, Aug 30 - Sat, Sep 13
COS
Colorado Springs
DEN
Denver
$396 Roundtrip, found 4 days ago
$396
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, Aug 30 from Colorado Springs to Denver, returning Sat, Sep 13, priced at $396 found 4 days ago

Find the cheapest month to fly from Colorado Springs (COS) to Denver (DEN)

September is typically the cheapest month to fly

From $77 - $499 per traveler.

Graph displaying average flight prices per month

Alternative airports near Denver

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Denver Intl. DEN. Cheapest option available. Average driving time to city center is 32 minutes. Flights from $296
DEN
Denver Intl.
Cheapest
Average driving time to city center32 min
Flights from $296
0
Flights from Colorado Springs (COS) to Denver (DEN)
Origin airport
Colorado Springs
Destination airport
Denver Intl.
Airlines serving
American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$97
Distance
72 mi

Colorado Springs to Denver Flights

The cheapest times to fly from Colorado Springs to Denver

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

 

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

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

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 Denver in 2025. You can also book with separate airlines for your outbound and return journeys, from $49 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 Denver 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 Denver 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 Denver Intl. Airport (DEN) cost?
Score cheap return flights from Colorado Springs Airport (COS) to Denver Intl. Airport (DEN) starting at $77. Grab a seat and take off on your trip. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Southwest Airlines flight leaving COS on July 31 2025 and touching down at DEN. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from COS to DEN?
The cheapest flights from COS to DEN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Colorado Springs Airport (COS) to Denver Intl. Airport (DEN)?
When departing from Colorado Springs Airport (COS), you can hop on a direct flight to Denver Intl. Airport (DEN) with United Airlines.
What is the cheapest airline that flies from COS to DEN?
With prices as low as $39 for a one-way flight from COS to DEN, Southwest Airlines is currently the cheapest airline flying this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from COS on September 23 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Colorado Springs Airport (COS) to Denver Intl. Airport (DEN)?
Each day, an average of 14 nonstop flights operate from Colorado Springs Airport (COS) to Denver Intl. Airport (DEN). Choose the departure that best suits your travel plans.
What are the most popular departure times for flights from Colorado Springs Airport (COS) to Denver Intl. Airport (DEN)?
The 10 AM departures from COS to DEN see the highest demand. These flights can come with a higher price due to their popularity. If you want to save on your trip, choose a less crowded time to fly.
What day of the week has the most flights from COS to DEN?
If you fly on a Saturday, you'll get the widest range of options for flights from Colorado Springs Airport (COS) to Denver Intl. Airport (DEN).
What is the earliest flight from Colorado Springs Airport (COS) to Denver Intl. Airport (DEN)?
Hop on the earliest flight at around 6:00AM UTC-7, leaving from Colorado Springs Airport (COS). You'll be flying for about 1h 5m, coming in to land at Denver Intl. Airport (DEN) at approximately 7:05AM UTC-7.
How long does it take to fly from Colorado Springs Airport (COS) to Denver Intl. Airport (DEN)?
Flights from COS to DEN have an average travel time of 1 hour and 4 minutes. The distance between the two is 75 mi.
What is the best time to fly from Colorado Springs Airport (COS) to Denver Intl. Airport (DEN)?
To arrive at Denver Intl. Airport (DEN) without delays, opt for a flight that leaves Colorado Springs Airport (COS) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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.
What airports do you fly into for Denver from Colorado Springs Airport (COS)?
Denver Intl. Airport (DEN) is the only airport in Denver with direct flights from Colorado Springs Airport (COS). Explore the options and find affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Colorado Springs Airport (COS) to Denver Intl. Airport (DEN) last-minute?
Last-minute fares from COS to DEN are generally more expensive. To lock in the best prices, start searching for flights well in advance. That said, if you're flexible with your travel plans, it's possible to find a cheap fare right before your journey.
Is it cheaper to book a COS to DEN flight and hotel package?
You'll typically save money by booking a COS to DEN flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. Once you've chosen your preferred flights and accommodations, you can add extras like car rentals, tours and activities.
Can I cancel or change the date of my flight from Colorado Springs Airport (COS) to Denver Intl. Airport (DEN)?
Typically, it's possible to reschedule or cancel your COS to DEN flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible 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.