Cheap flights from St. Louis to Denver

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Denver travel tips

1) Follow the steps of the Beatles in Denver

When going to a concert at the Red Rocks Park and Amphitheatre or just passing this great building by on the street try to imagine yourself in the 60s. This is where the Beatles gathered their crazy dedicated fans.

2) Eat some hand-made food at Denver Central Market

Denver Central Market on 2669 Larimer Street is mainly famous for its hand-made food. Sample a bowl of handmade pasta or an artisanal sandwich. A wood-fired pizza is also a nice option. And good shopping is guaranteed, of course.

3) Going picnicking in Denver or just shopping at Cooks Fresh Market, try their sandwiches

Located on 1600 Glenarm Plaza in Denver, Cooks Fresh Market is a great option for gourmets. After shopping or passing by on your way to a picnic, pay a visit to this deli to grab a sandwich or two.

Travelers usually depart from St. Louis Lambert International, or St. Louis Union Station when they travel from St. Louis to Denver. Book your trip to arrive at Denver International, or Denver Union Station. The distance between St. Louis and Denver is 1236 km. The most popular airlines for this route are United Airlines, Delta Air Lines, American Airlines, Frontier Airlines, and Spirit Airlines. St. Louis and Denver have 118 direct flights per week.

Weekly direct flights

MondaysTuesdaysWednesdaysThursdaysFridaysSaturdaysSundays
Direct flights5564-55
Fly direct with

Frontier Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

United Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

Check-in for a flight from St. Louis to Denver

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
United AirlinesUALUAYesNo
Delta Air LinesDALDLYesOpens 24 days before flight
Closes 1 hours before flight
American AirlinesAALAAYesNo
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight

Frequently asked questions

How long does it take to travel from St. Louis to Denver?
A one-way nonstop (direct) flight between St. Louis and Denver takes around 2.6 hours.
What is the flight distance between St. Louis and Denver?
The flight distance between St. Louis and Denver is 1236 km.
What airlines offer nonstop (direct) flights between St. Louis and Denver?
Several carriers operate flights between St. Louis and Denver. Airlines offering nonstop (direct) flights include Frontier Airlines, United Airlines.
What are the most popular routes to and from St. Louis?
Travelers frequently search for route combinations, such as St. Louis and Las Vegas, Los Angeles, Orlando, Atlanta, Minneapolis, San Diego, San Francisco, London, Phoenix, Seattle, Houston, Sacramento, New York, Cancún, Washington, D.C., Fort Lauderdale, Oakland, Tampa, Paris, Dallas.
What are the most popular routes to and from Denver?
Travelers frequently search for route combinations, such as Denver and Chicago, Dallas, Minneapolis, Los Angeles, Washington, D.C., Houston, Orlando, San Francisco, Atlanta, Las Vegas, Austin, Phoenix, Philadelphia, San Diego, Miami, New York, Tampa, Detroit, Seattle, Salt Lake City.
What airports are near St. Louis?
The main airport in St. Louis is St. Louis Lambert International. It is also served by St. Louis Lambert International, Central Illinois Regional, General Wayne A. Downing Peoria International, MidAmerica St. Louis, Williamson County Regional, Evansville Regional, Abraham Lincoln Capital, Quincy Regional, University of Illinois Willard, Columbia Regional.
What airports are near Denver?
The main airport in Denver is Denver International. It is also served by Colorado Springs, Eagle County Regional, Cheyenne Regional, Laramie Regional, Pueblo Memorial.
What buses and trains depart from St. Louis?
A number of bus and train companies depart from St. Louis, including Amtrak train.
Is it possible to combine flights, buses, and trains in one itinerary when traveling between St. Louis and Denver?
Yes, it's possible to combine different modes of transport between St. Louis and Denver thanks to our Virtual Interlining technology. Making use of not only flights but also trains and buses between St. Louis and Denver can give rise to new adventures. Read more about how Virtual Interlining works on Kiwi.com Stories.
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How many airports are there near Denver?
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What time do flights between St. Louis and Denver depart?
What time do flights between St. Louis and Denver arrive?

Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.

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