Cheap flights from Denver to St. Louis

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Travelers usually depart from Denver International, Denver Union Station, Denver Greyhound station, Denver, CO - Federal Center Station, or Denver, CO - Colorado Park & Ride when they travel from Denver to St. Louis. Book your trip to arrive at St. Louis Lambert International, or St. Louis Union Station. The distance between Denver and St. Louis is 1236 km. The most popular airlines for this route are Southwest Airlines, United Airlines, Delta Air Lines, Frontier Airlines, and American Airlines. Denver and St. Louis have 218 direct flights per week.

Weekly flights

MondaysTuesdaysWednesdaysThursdaysFridaysSaturdaysSundays
Number of flights31374118-7516

Fly direct with

Frontier Airlines on Mondays, Thursdays, Fridays, and Sundays.

Southwest 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 Denver to St. Louis

NameCarrier codeIATA CodePassport needed during bookingAirport check-in closesOnline check-in available
Southwest AirlinesSWAWNNoUnknownNo
United AirlinesUALUAYesUnknownNo
Delta Air LinesDALDLYesUnknownNo
Frontier AirlinesFFTF9NoUnknownNo
American AirlinesAALAAYesUnknownNo

Frequently asked questions

How long does it take to travel from Denver to St. Louis?

A one-way nonstop (direct) flight between Denver and St. Louis takes around 2.0 hours.

What is the flight distance between Denver and St. Louis?

The flight distance between Denver and St. Louis is 1236 km.

What airlines offer nonstop (direct) flights between Denver and St. Louis?

Several carriers operate flights between Denver and St. Louis. Airlines offering nonstop (direct) flights include United Airlines, Frontier Airlines, Southwest Airlines.

What are the most popular routes to and from Denver?

Travelers frequently search for route combinations, such as Denver and Orlando International, McCarran International, Fort Lauderdale–Hollywood International, Dallas/Fort Worth International, George Bush Intercontinental, Baltimore–Washington International, Southwest Florida International, Philadelphia International, Portland International, Minneapolis–Saint Paul International, San Antonio International.

What are the most popular routes to and from St. Louis?

Travelers frequently search for route combinations, such as St. Louis and Orlando International, Miami International, McCarran International, Denver International, Phoenix Sky Harbor International, Seattle–Tacoma International, Logan International, San Diego International, Portland International, Minneapolis–Saint Paul International, Des Moines International.

Which airports are there in Denver?

Denver is mainly served by Denver International. But there are other airports nearby, including Rocky Mountain Metropolitan Airport, Centennial Airport.

What airports are near Denver?

The main airport in Denver is Denver International. It is also served by Colorado Springs, Cheyenne Regional, Eagle County Regional, Laramie Regional, Pueblo Memorial.

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, MidAmerica St. Louis, General Wayne A. Downing Peoria International, Central Illinois Regional, Williamson County Regional, Quincy Regional, Waynesville-St. Robert Regional, Evansville Regional, Decatur, Abraham Lincoln Capital.

What buses and trains depart from Denver?

A number of bus and train companies depart from Denver, including Bustang, Greyhound.

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