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Fares from $44 One Way, $87 Round Trip from St. Louis to Denver

Prices starting at $87 for return flights and $44 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.

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More About Flying To Denver from St. Louis

Flights from St. Louis to Denver - Frequently Asked Questions

Are there non-stop flights from St. Louis to Denver?

You're in luck — there are 3 airlines which fly nonstop from St. Louis, MO Airport (STL-Lambert-St. Louis Intl.) to Denver, CO Airport (DEN-Denver Intl.). These are some of the most popular:

  • Southwest Airlines
  • United Airlines
  • Frontier Airlines
What is the shortest flight from St. Louis to Denver?

Leave those movies on your laptop for the hotel room, because the flight from St. Louis to Denver can be as quick as 2 hours and 10 minutes.

What airlines fly from St. Louis to Denver most frequently?

Southwest Airlines (WN) offers 121 flights every month between St. Louis, MO Airport (STL-Lambert-St. Louis Intl.) to Denver, CO Airport (DEN-Denver Intl.). Your next exciting adventure is just a few clicks away. If you'd like some more options, have a look at the price of tickets with United Airlines (UA), which operates 78 flights from St. Louis to Denver each month.

Route Information for Flights from St. Louis to Denver

Origin Airport IATA CodeSTL
Destination Airport IATA CodeDEN
Distance767 mi
Direct Flight AirlinesAir Canada, Frontier Airlines, Southwest Airlines, United Airlines
Earliest Flight Arrival2:00PM UTC
Latest Flight Arrival2:30AM UTC

Flights Review

Feb 2, 2020

It was fine

Aug 1, 2019

Delayed flight

Jul 3, 2019

Plane was loud when flight took off.

Oct 19, 2018

There were a few last minute gate changes that caused a slight delay. Complementary on board snacks could have had more variety for those w/gluten issues. Friendly, helpful attendants were a plus.

Oct 2, 2018

Numerous open seats on the leg of this trip. My ticket was still Boarding group D and I was charged $30.00 for my carry on. This is ridiculous and quite the scam.

Oct 1, 2018

I wish I could have checked more items Frontier is definitely a budget airline which charges for everything!!!

Jul 5, 2018

For a 2 hr flight and no free drink, seriously? That makes no sense.

May 31, 2018

WiFi was not available

May 18, 2018

I was really happy that they were able to transfer my bag in time. I had two separate itineraries. I thought I would carry on my bag on the first flight, but when they asked for volunteers to check their bags, I did. Our flight was late making it impossible for me to go to baggage claim and retrieve my bag. The gate agent was so nice to have my bag transferred for me and everyone followed through. I was so pleased when my bag arrived at the carousel. Thank you very much!

Feb 25, 2018

WiFi was terrible. Having to check carry-on luggage at gate & then stand in the jetway freezing for 10-15!min to get it was awful. Everything else was pleasant.

Finding Flights from St Louis to Denver

Lambert-St. Louis International Airport

Planning a trip on a budget can often be a challenge. 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. 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, 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 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 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 to find cheap flights to Denver for your next Colorado vacation.

^Savings based on all package bookings with Flight + Hotel made on from January 1, 2019 to December 31, 2019 as compared to the price of the same components booked separately. Savings will vary based on origin/destination, length of trip, stay dates and selected travel supplier(s). Savings not available on all packages.