Cheap Flights from Carbondale (MDH) to Denver (DEN)

Popular airlines from Carbondale, IL (MDH-Southern Illinois) to Denver Intl. Airport (DEN)

Frequently asked questions

How much does a flight from Carbondale, IL (MDH-Southern Illinois) to Denver Intl. Airport (DEN) cost?
Get a cheap one-way flight or cheap return flight from Carbondale, IL (MDH-Southern Illinois) to Denver Intl. Airport (DEN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Carbondale, IL (MDH-Southern Illinois) to Denver Intl. Airport (DEN)?
Traveling in is a great way to save, as it's the cheapest month for flights between MDH and DEN. You'll typically find the lowest fares during the off-season.
What is the cheapest airline that flies from Carbondale, IL (MDH-Southern Illinois) to Denver Intl. Airport (DEN)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll take you from MDH to DEN. Then, sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Carbondale, IL (MDH-Southern Illinois) to Denver Intl. Airport (DEN)?
There are no daily nonstop flights from Carbondale, IL (MDH-Southern Illinois) to Denver Intl. Airport (DEN). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from MDH to DEN?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Carbondale, IL (MDH-Southern Illinois) to Denver Intl. Airport (DEN)?
To avoid potential delays on the Carbondale, IL (MDH-Southern Illinois) to Denver Intl. Airport (DEN) route, aim to travel before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**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 Carbondale, IL (MDH-Southern Illinois) to Denver Intl. Airport (DEN) last-minute?
Last-minute bookings from MDH to DEN are usually more expensive. For the cheapest rates, start looking for flights well ahead of time. That said, if your travel plans are flexible, it's possible to find a cheap ticket right before you leave.
Is it cheaper to book a MDH to DEN flight and hotel package?
Securing a MDH to DEN flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Choose from our wide range of accommodations and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Carbondale, IL (MDH-Southern Illinois) to Denver Intl. Airport (DEN)?
Usually, it's possible to cancel or reschedule your MDH to DEN flight. However, if it's been more than 24 hours since booking, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Southern Illinois
Destination airport
Denver Intl.
Distance
841 mi

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Carbondale to Denver Flights

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

 

The best time to book a flight from Carbondale to Denver

Sunday is one of the best days to book for cheap flights from Carbondale 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 Carbondale 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 Carbondale to Denver in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Carbondale 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 Carbondale 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.

 

Carbondale to Denver Flights

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*Available to One Key members.