$24 Cheap flight deals from Fort Collins (DEN) to St. Louis (STL)

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

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 $24 One Way, $64 Round Trip from Fort Collins to St. Louis

Prices starting at $64 for return flights and $24 for one-way flights to St. Louis were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

St. Louis economy flight packages

Price found within the past 48 hours. Click for updated prices.
The Wildwood Hotel
Angad Arts Hotel St. Louis, Tapestry Collection by Hilton
Ameristar Casino Resort and Spa
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More About Flying To St. Louis from Fort Collins

Route Information for Flights from Fort Collins to St. Louis

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

Fort Collins to St. Louis

When you’re searching for Fort Collins to St. Louis flights for your family vacation, check out the guaranteed low prices at Orbitz. If you are looking for the best prices on hotels too, you’ll be sure to find great deals to suit your budget. You’ll also benefit from the following features:

Suitable Schedules

Orbitz simplifies the process of finding and booking budget flights from Fort Collins to St. Louis. Since we monitor hundreds of flight fares, you can compare several flights from a range of different airlines to find the best fares and most suitable departure and arrival times. Mix and match your departure and return flight for even more discounts and travel flexibility.

Mobile Apps

Taking a lunch break or waiting to pick up the kids? Orbitz’s cutting-edge mobile tools will help you search for cheap Fort Collins to St. Louis flights anywhere you are. Get exclusive mobile deals on flights, hotels, vacation packages, and cruises too.

Flight Alerts

Orbitz won’t leave you wondering whether your flight will take off on time. We can send you free alerts about your flights from Fort Collins to St. Louis to your mobile phone and email. Whether your flights from Fort Collins to St. Louis are running just a few minutes to a few hours late, we will let you know.

Miles and Points

If you travel regularly, you can still earn miles and points when you book qualifying Fort Collins to St. Louis flights. Enter your frequent flyer number with your reservation to see the miles rack up.

Frequently asked questions

Are there non-stop flights from Fort Collins to St. Louis?
You'll find 3 airlines that fly nonstop from DIA airport to Lambert Field, so get ready to hit that "book" button. One of these carriers will have your ideal flight:

  • Southwest Airlines
  • United Airlines
  • Frontier Airlines

What is the shortest flight from Fort Collins to St. Louis?
It can zip by in as little as 1 hour and 55 minutes. If you're of the opinion that your vacation hours should be spent 'vacationing' rather than flying, you'll enjoy the journey from Fort Collins to St. Louis.
What airlines fly from Fort Collins to St. Louis most frequently?
Southwest Airlines (WN) is one of the carriers with the most flights from Denver, CO (DEN-Denver Intl.) to Lambert Field. It offers 160 flights on this route every month. Taking off on a vacation is one of life's greatest pleasures, and this airline will get you to your destination quickly and safely. United Airlines (UA) will also take you to your destination in comfort. Offering 121 flights every month between Fort Collins and St. Louis, it's another quality airline to look into.
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.

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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.