Cheap Flights from Fort Collins (FNL) to Denver (DEN)

Popular airlines from Fort Collins, CO (FNL-Fort Collins-Loveland Municipal) to Denver Intl. Airport (DEN)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key
Find available prices by choosing your travel dates.
Flights from Fort Collins (FNL) to Denver (DEN)
Origin airport
Fort Collins-Loveland Municipal
Destination airport
Denver Intl.
Distance
45 mi

Fort Collins to Denver Flights

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

The best time to book a flight from Fort Collins to Denver

Sunday is one of the best days to book for cheap flights from Fort Collins 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 Fort Collins 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 Fort Collins 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 Fort Collins 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 Fort Collins 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 Fort Collins, CO (FNL-Fort Collins-Loveland Municipal) to Denver Intl. Airport (DEN) cost?
Discover the latest flight deals from FNL to DEN 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 FNL to DEN?
The cheapest flights from FNL 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.
What is the cheapest airline that flies from FNL to DEN?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from FNL to DEN. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Fort Collins, CO (FNL-Fort Collins-Loveland Municipal) to Denver Intl. Airport (DEN)?
There are no daily nonstop flights departing from Fort Collins, CO (FNL-Fort Collins-Loveland Municipal) to Denver Intl. Airport (DEN). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you’ll be on your way in no time at all.
What day of the week has the most flights from FNL to DEN?
Usually you’ll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* But this can vary depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Fort Collins, CO (FNL-Fort Collins-Loveland Municipal) to Denver Intl. Airport (DEN)?
To land at Denver Intl. Airport (DEN) on schedule, select a flight that leaves Fort Collins, CO (FNL-Fort Collins-Loveland Municipal) before 3 PM. The chance 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.
Is it cheaper to buy a plane ticket from Fort Collins, CO (FNL-Fort Collins-Loveland Municipal) to Denver Intl. Airport (DEN) last-minute?
Booking your flight from FNL to DEN right before your getaway is generally more expensive. However, if there’s some wiggle room with your itinerary, you could land a cheap last-minute fare.
Is it cheaper to book a FNL to DEN flight and hotel package?
You’ll generally save money by securing a FNL to DEN flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it’s simple to manage it all in one convenient place. Once you’ve selected your preferred flights and accommodations, consider adding extras such as car rentals, tours and activities.
Can I cancel or change the date of my flight from Fort Collins, CO (FNL-Fort Collins-Loveland Municipal) to Denver Intl. Airport (DEN)?
If you reserved your FNL to DEN flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you want more information.

Explore a world of travel with Expedia

*Available to One Key members.