Cheap Flight Deals From St. Louis (STL) to Denver (DEN) Starting at $34

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This Weekend's Flight Deals from St. Louis to Denver

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 $34 One Way, $88 Round Trip from St. Louis to Denver

Prices starting at $88 for return flights and $34 for one-way flights to Denver were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Denver economy flight packages

The Crawford Hotel
Kasa Sloan's Lake Denver
Staybridge Suites Denver Downtown, an IHG Hotel
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More About Flying To Denver from St. Louis

Route Information for Flights from St. Louis to Denver

Origin Airport IATA Code STL
Destination Airport IATA Code DEN
Distance 767 mi
Direct Flight Airlines Air Canada, Frontier Airlines, Southwest Airlines, United Airlines
Earliest Flight Arrival 1:00PM UTC
Latest Flight Arrival 4:50AM UTC

Finding Flights from St Louis to Denver

Lambert-St. Louis International Airport

Planning a trip on a budget can often be a challenge. Orbitz.com allows travelers to search many different airlines at once to find cheap flights from St. Louis, Missouri. The Lambert-St. Louis International Airport is located 15 miles northwest of downtown on Airflight Drive. Thirteen airlines provide services to the airport, including US Airways, United Airlines, Delta and American Airlines.

Parking at the Airport

Parking at the Lambert-St. Louis International Airport is provided by Super Park. Both long-term and short-term parking are available. Shuttle services are available 24 hours a day to and from the parking areas to the main terminal. Super Park ensures the closest parking available, and in many cases, parking is within walking distance to the terminal. Fees are charged by the hour or by the day with discounts for weekly parking.

Transportation to the Airport

Go Best Express Airport Shuttle offers shared shuttle rides to and from all downtown hotels and businesses in St. Louis. Shuttles are available every 15 to 30 minutes all day, and reservations are recommended. The MetroLink has 37 stations that provide service to and from the airport. The Link is available for a flat fee. The Metropolitan Taxicab Commission services the Lambert-St. Louis International Airport, and it provides metered transportation in and around St. Louis. Exact fares depend on the destination, and taxis require an additional $3 airport fee. Limos are available for rent by the day or by the hour, and many local hotels provide complimentary shuttles to and from the airport for their guests. Orbitz.com can assist travelers in locating cheap car rental agencies in the area.

Dining Options at Lambert-St. Louis International Airport

The Lambert-St. Louis International Airport offers many excellent food options for those who want to eat before their flight. The Great American Bagel Company offers many bagel varieties, as well as fresh coffee and juice. Starbucks is available at the Lambert's East Terminal and has a selection of blended coffees and bakery items. For travelers who prefer a sit-down meal before reaching the airport, Half and Half is located near the airport in St. Louis and offers eggs, toast, bacon and fresh donuts. For individuals looking for travel deals, Orbitz.com can provide assistance in locating cheap flights from St. Louis.

Denver Airport Information

Many of the major domestic and international carriers offer relatively cheap flights to Denver International Airport, the primary airport serving the greater Denver area. The airport is roughly 28 miles east of downtown Denver and a little over an hour from the closest major ski resort. Whether you're coming into town on business or for a ski vacation, be sure to use Orbitz.com to reserve your flights and hotel.

Ground Transportation in Denver

The RTD bus is the primary means of public transportation in and around Denver, so most visitors use a private car service, share-a-ride shuttle or taxi to get into town. Many of the large hotels also offer free shuttle service to and from the Denver airport, and there are chartered shuttles and buses to take you to the outlying ski resorts. A cab from the airport to the downtown area will cost you between $60 and $70, so you might be better off using Orbitz.com to add a rental car to your low-fare ticket purchase.

Denver Area Weather Information

The summer months are mild in Denver, with average temperatures ranging from the low 60s to the mid-80s. The average winter temperatures in Denver range from the teens to the low 40s, and you can expect anywhere from 22 to 61 inches of snow each season. Layer your clothes in the summer to accommodate mild and warm temperatures, but be sure to bundle up in the winter.

What to Do in Denver

Although the city has its share of high-end eateries, historic landmarks, museums and shopping venues, the Denver lifestyle is all about the great outdoors. Denver has more than 4,000 acres of traditional parks and 14,000 acres of mountain parks to keep outdoor enthusiasts engaged. Enjoy your stay, and don't forget to use Orbitz.com to find cheap flights to Denver for your next Colorado vacation.

Frequently asked questions

Am I able to catch a flight from St. Louis to Denver now?
Go right to our Covid-19 Travel Advisor for the most comprehensive info on quarantine and travel restrictions when getting a flight from St. Louis to Denver.
Are there non-stop flights from St. Louis to Denver?
You’re in luck — you’ll find 3 airlines which offer nonstop services from Lambert-St. Louis Intl. Airport (STL) to Denver Intl. Airport (DEN). Here are some of the best:

  • Southwest Airlines
  • United Airlines
  • Frontier Airlines

What is the shortest flight from St. Louis to Denver?
It can take just 2 hours and 55 minutes to get from Lambert Field to COS. Kick back and enjoy the trip, because you’ll be coming in to land in a flash.
What airlines fly from St. Louis to Denver most frequently?
The carriers that have the most frequent flights between Lambert-St. Louis Intl. Airport (STL) and DIA airport include Southwest Airlines (WN). This popular option operates 160 flights on the route every month. If you can’t find the right flight there, have a look at the airfares with United Airlines (UA). This carrier is a fantastic alternative and operates 121 flights from St. Louis to Denver monthly.
If I am not able to travel due to COVID-19, can I cancel my flight to Denver?
We get that traveling right now has its challenges, so it’s good to know that many reservations booked through us are able to be cancelled or changed. If your travel plans to Denver have been affected by COVID-19, a lot of airlines are making things easier by offering credits to use at a later date. Just sign in to your account and you’ll quickly see what options are available. Our Customer Service Portal is the place to go for more information.
Are there flights to Denver with flexible change policies?
In most cases you’ll have the option to reschedule your flight to Denver without a change fee. All you have to do then is pay the difference between the old flight and the new one. Look for the “no change fees” filter and book with confidence.
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.