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Direct flights from Denver to St Louis

Did you mean Flights from St Louis to Denver?

Flightmap/Flights from DEN/DEN to STL

Denver

United States

DEN

Denver International Airport

St Louis

United States

STL

Lambert St Louis International Airport

Route
Nonstop service available
Distance
768 miles
Marketing airlines
5 airlines
Aircraft
12 aircraft types
Dates
Oct 19, 2026 – Oct 17, 2027

Observed award fares

A sample of one-way prices for one traveler from Roame’s fare cache. Points, fees, and seats describe the same observation. Availability can change; confirm with the loyalty program before transferring points.

Departure window: 2026-10-23 – 2026-11-21.

No recent fares appear in this limited preview. This does not mean the route is sold out. Use the search controls to check other dates and routes.

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Explore these airports and cities

  • Flights from DEN
  • Flights to STL

Denver to St Louis route overview

Denver International Airport (DEN) serves Denver; Lambert St Louis International Airport (STL) serves St Louis.

The airports are 768 miles apart by great-circle distance.

Roame's current schedule feed shows nonstop service from DEN to STL.

Marketing airlines listed in the current schedule, including codeshare sellers, are Air Canada (AC), Frontier Airlines (F9), United Airlines (UA), Southwest Airlines (WN) and Volaris (Y4). This list does not identify the operating airline for each flight; check the flight details before booking.

Published schedule dates span Oct 19, 2026 – Oct 17, 2027.

Marketing airlines on the Denver to St Louis route

These are marketing airlines, including codeshare sellers. This list does not identify the operating airline for each flight; check the flight details before booking.

  • Air Canada (AC)Codeshare only
  • Volaris (Y4)Codeshare only

Airline alliance affiliations represented: Star Alliance

Aircraft flying from DEN to STL

Frequently asked questions

Which airports serve the Denver to St Louis route?

Denver International Airport (DEN) is the origin airport and Lambert St Louis International Airport (STL) is the destination airport.

How far is St Louis from Denver?

DEN and STL are approximately 768 miles apart by great-circle distance.

Are there direct flights from DEN to STL?

Yes. Roame's current schedule feed shows nonstop service from DEN to STL.

Which airlines market flights from DEN to STL?

Marketing airlines listed in the current schedule, including codeshare sellers, are Air Canada (AC), Frontier Airlines (F9), United Airlines (UA), Southwest Airlines (WN) and Volaris (Y4). This list does not identify the operating airline for each flight; check the flight details before booking.

Which aircraft fly from DEN to STL?

Aircraft listed in the current schedule include Airbus A319 (319), Airbus A320 (320), Airbus A321 (321), Airbus A320neo (32N), Airbus A321neo (32Q), Boeing 737-800 (738), Boeing 737-900 / Boeing 737-900ER (739), Boeing 737-800 Winglets (73H), Boeing 737 MAX 8 (7M8), 7S7, Embraer 175 (long wing) (E7W) and JET.

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