$52 Cheap flight deals from St. Louis (STL) to Fort Collins (DEN)

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This Weekend's Flight Deals from St. Louis to Fort Collins

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Airfares from $52 One Way, $104 Round Trip from St. Louis to Fort Collins

Prices starting at $104 for return flights and $52 for one-way flights to Fort Collins were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fort Collins economy flight packages

Price found within the past 48 hours. Click for updated prices.
Comfort Inn & Suites Brighton Denver NE Medical Center
Moxy Boulder University
Patterson Inn
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More About Flying To Fort Collins from St. Louis

Route Information for Flights from St. Louis to Fort Collins

Origin Airport IATA Code
STL
Destination Airport IATA Code
DEN
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

St. Louis to Fort Collins

For the best travel experience from St. Louis to Fort Collins domestic and international travelers everywhere choose Orbitz for guaranteed low prices and cutting-edge mobile tools.

Convenient Low-Cost Travel

Orbitz makes it simple to book discount flights from St. Louis to {destination.name} without compromising your schedule. You can always find deals on domestic flights from a location near you. You may find the best deals to fit your schedule by mixing and matching airlines to get you from St. Louis to Fort Collins.

Access Orbitz On The Move

You can access Orbitz anywhere at anytime for travel from St. Louis to Fort Collins using the latest technology. Via your mobile phone you can track any changes to your flight status, gate and baggage claim details, and with Orbitz’s full-service mobile apps for iPhone and Android you can view these trip details anytime anywhere. You can also get fare alerts and travel updates to keep you informed of the cheapest flights from St. Louis to Fort Collins.

Earn Rewards on Your St. Louis to Fort Collins Flights

At Orbitz you can benefit from low cost travel and have your loyalty rewarded on certain types of St. Louis to Fort Collins flights. All you need to do is enter you frequent flyer number when booking and rack up your rewards through Orbitz online on the Traveler Information page for use on future flights. You can even add your frequent flyer number to an existing reservation to start the ball rolling.

Frequently asked questions

Are there non-stop flights from St. Louis to Fort Collins?
Yep, your amazing getaway is just a simple flight away. Great news, isn't it? Cruise in comfort on board one of the 3 carriers that fly nonstop from STL to Denver Intl. Airport (DEN). Top options include:

  • Southwest Airlines
  • United Airlines
  • Frontier Airlines

What is the shortest flight from St. Louis to Fort Collins?
If conditions are good and all goes according to plan, you could be stepping off the plane at DIA airport from Lambert-St. Louis Intl. Airport (STL) in as little as 2 hours and 15 minutes. With such a quick flight time, think about bringing just carry-on luggage.
What airlines fly from St. Louis to Fort Collins most frequently?
Consider Southwest Airlines (WN). This airline offers some of the most frequent flights from St. Louis, MO (STL-Lambert-St. Louis Intl.) to DIA airport. It operates 160 services on this route each month and is popular with travelers. If you need some more options, look up the prices with United Airlines (UA), which offers 121 flights from St. Louis to Fort Collins every month.
What is the cheapest day of the week to fly?
Consider flying out early in the week to save on your airfare. Orbitz data from 2021 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.
What is the cheapest month to fly?
We won't keep you guessing, according to Orbitz data from 2021, the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a break from it all in the shortest month of the year. Be aware that the most expensive time to fly is during the height of summer in July, and in the holiday month of December.*According to flight demand on Orbitz.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.