Cheap Flights from St. Louis (STL) to Fort Collins (FNL)

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Fort Collins, CO (FNL-Fort Collins-Loveland Municipal)

Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Fort Collins, CO (FNL-Fort Collins-Loveland Municipal) cost?
Secure a cheap one-way flight or cheap return flight from Lambert-St. Louis Intl. Airport (STL) to Fort Collins, CO (FNL-Fort Collins-Loveland Municipal) 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 Lambert-St. Louis Intl. Airport (STL) to Fort Collins, CO (FNL-Fort Collins-Loveland Municipal)?
The cheapest month to fly from STL to FNL is , when there's less demand. Off-peak season is typically when airlines offer better prices between these airports.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Fort Collins, CO (FNL-Fort Collins-Loveland Municipal)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll take you from STL to FNL. Then, sort your results by "Price (lowest to highest)" to snap up the best deal available.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Fort Collins, CO (FNL-Fort Collins-Loveland Municipal)?
There are no daily nonstop flights available from Lambert-St. Louis Intl. Airport (STL) to Fort Collins, CO (FNL-Fort Collins-Loveland Municipal). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from STL to FNL?
Typically you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* However, this can change based on the time of year, airline 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 Lambert-St. Louis Intl. Airport (STL) to Fort Collins, CO (FNL-Fort Collins-Loveland Municipal)?
Opt for a flight from Lambert-St. Louis Intl. Airport (STL) to Fort Collins, CO (FNL-Fort Collins-Loveland Municipal) that takes off before 3 PM to reduce the risk of delays and cancellations. Later departures have a 22% higher chance of being canceled, on average.**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 Loveland from Lambert-St. Louis Intl. Airport (STL)?
Denver Intl. Airport (DEN) is the only airport in Loveland with direct flights from Lambert-St. Louis Intl. Airport (STL). Check out your options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Fort Collins, CO (FNL-Fort Collins-Loveland Municipal) last-minute?
Waiting until just before your departure to book your flight from STL to FNL often results in higher prices. While you may come across some last-minute offers, there's no guarantee. Be flexible with your travel plans to boost your chances of snagging a bargain.
Is it cheaper to book a STL to FNL flight and hotel package?
You'll generally save money by booking a STL to FNL 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 it all in one convenient place. Once you've selected your ideal accommodations and flights, you can add extras like car rentals, tours and activities.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Fort Collins, CO (FNL-Fort Collins-Loveland Municipal)?
In most cases, you can modify or cancel your STL to FNL flight. However, there may be additional fees, especially if you booked more than 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you want more details, visit our Customer Service portal.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Fort Collins-Loveland Municipal
Distance
787 mi

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St. Louis to Fort Collins Flights

The cheapest times to fly from St. Louis to Fort Collins

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

 

The best time to book a flight from St. Louis to Fort Collins

Sunday is one of the best days to book for cheap flights from St. Louis to Fort Collins: 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 St. Louis to Fort Collins

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 St. Louis to Fort Collins 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 St. Louis to Fort Collins 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 St. Louis to Fort Collins 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.

 

St. Louis to Fort Collins Flights

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*Available to One Key members.