Denver to St. Louis flights from £245

Flights starting at £245. Choose between American Airlines, United Airlines, or Frontier Airlines to find the best price.

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Tips to know when travelling to St. Louis

Travelers usually depart from Denver International, Denver Union Station, or Centennial Airport 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 American Airlines, United Airlines, Frontier Airlines, Spirit Airlines, and Delta Air Lines. Denver and St. Louis have 215 direct flights per week.

Weekly direct flights

MondaysTuesdaysWednesdaysThursdaysFridaysSaturdaysSundays
Direct flights5555555
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 Denver to St. Louis

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

St. Louis travel tips

1) Visit the Old St. Louis County Courthouse, where famous court cases were held

There is a domed building to the right of Market Street – The Old St. Louis County Courthouse. It is part of Jefferson Memorial Park. Its walls remember famous trials: for example, the lawsuit of Dred Scott for freedom from slavery or the case of activist Virginia Louise Minor for the right to vote for women.

2) The Jefferson Barracks Telephone Museum introduces you to the history of telephony in St. Louis

The refurbished 1896 building houses the Jefferson Barracks Telephone Museum. The exhibits include a rich collection of telephones, switches, military telephones, equipment and tools, and even a telephone pole with climbing equipment. There is a portable switch here that was used during the visits of the US presidents: Carter, Ford, Nixon, and Johnson.

3) Head to The Hill neighbourhood in St. Louis for ethnic cuisine

St. Louis is a multicultural city where African Americans, Bosnians, Libyans, Hindus, and many other nationalities live together peacefully. If you want to taste their national cuisine, head to The Hill area – it is filled with ethnic restaurants.

United States COVID-19 travel restrictions

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Latest COVID-19 restrictions

United States

Kiwi.com/COVID-19/United States
  • Travel is allowed

  • No proof of a negative pre-departure COVID-19 test required for vaccinated travelers

  • No quarantine required

Latest COVID-19 travel restrictions in United States – 06/2022
Your trip summary

Most travelers from Denver, DEN with proof of full COVID-19 vaccination can enter St Louis, STL.

Departure

Travel restrictions
  • Travel is allowed

  • No proof of a negative pre-departure COVID-19 test required for vaccinated travelers

  • No quarantine required

Return

Travel restrictions
  • Travel is allowed

  • No proof of a negative pre-departure COVID-19 test required for vaccinated travelers

  • No quarantine required

Information is provided as guidance only and accurate at the time of publishing. Always check government websites and airline materials before booking and traveling.

Learn more about COVID-19 restrictions in United States in our dedicated Stories article.

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 2.2 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 Frontier Airlines, United Airlines.
What are the most popular routes to and from Denver?
Travelers frequently search for route combinations, such as Denver and London, Calgary, Dublin, Manchester, New York, San Francisco, Glasgow, Chicago, Las Vegas, Toronto, Washington, D.C., Los Angeles, Buffalo, Riga, Austin, San Jose, Phoenix, Detroit, Houston, Vancouver.
What are the most popular routes to and from St. Louis?
Travelers frequently search for route combinations, such as St. Louis and London, Manchester, New York, Cebu, San Jose, Atlanta, Los Angeles, Orlando, Edinburgh, Houston, San Francisco, Phoenix, Seattle, Portland, Dallas, Washington, D.C., Glasgow, Charlotte, Paris, Reykjavik.
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, Eagle County Regional, Laramie Regional, Cheyenne 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, General Wayne A. Downing Peoria International, Central Illinois Regional, MidAmerica St. Louis, Evansville Regional, Quincy Regional, Williamson County Regional, Cape Girardeau Regional, Abraham Lincoln Capital, Decatur.
What buses and trains depart from Denver?
A number of bus and train companies depart from Denver, including Greyhound, Amtrak train.
Is it possible to combine flights, buses, and trains in one itinerary when traveling between Denver and St. Louis?
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Which airlines fly between Denver and St. Louis?
When's the best time to travel between Denver and St. Louis?
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How many airports are there near St. Louis?
Is it possible to reach Denver by bus or train?
What time do nonstop (direct) flights between Denver and St. Louis depart?
What time do nonstop (direct) flights between Denver and St. Louis arrive?
What time do flights between Denver and St. Louis depart?
What time do flights between Denver and St. Louis arrive?

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