St Louis to Denver Flights
Flights from St Louis (XLS) to Denver (DEN) connect SN and United States. The great-circle distance is approximately 8,752 km, and a typical direct flight takes about 12 hours. Airports commonly used for this city pair include XLS and DEN. The reverse route is Denver to St Louis. Use the search tool below to compare live prices and schedules — do not treat any static text on this page as a live fare.
Route facts
- Origin
- St Louis, SN
- Destination
- Denver, United States
- Distance
- 8,752 km
- Typical duration
- about 12 hours
- Origin codes
- XLS
- Destination codes
- DEN
- Primary keyword
- flights from St Louis to Denver
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Route overview
St Louis to Denver is a city-pair air route between SN and United States. Travelers use this corridor for leisure, business, and connecting itineraries.
Primary search codes are XLS and DEN. Related codes: XLS → DEN.
Distance
Approximate flight distance: 8,752 km (great-circle). Actual flown distance can be longer depending on airway routing.
Duration
Typical block time for a direct flight is about 12 hours. Connecting itineraries take longer and depend on layover airports.
Airports
St Louis airports and metro codes: XLS.
Denver airports and metro codes: DEN.
Alternative routes
Related searches include the reverse route Denver to St Louis, other destinations from St Louis, and other origins into Denver.
Frequently asked questions
How long is the flight from St Louis to Denver?
Direct flights from St Louis to Denver typically take about 12 hours, depending on aircraft type, routing, and wind conditions. Connecting itineraries take longer.
What is the distance from St Louis to Denver?
The great-circle distance between St Louis and Denver is approximately 8,752 km. Flown distance can be longer depending on airways.
Which airports serve flights from St Louis to Denver?
St Louis is commonly searched with code XLS (related: XLS). Denver is commonly searched with code DEN (related: DEN).
Are there direct flights from St Louis to Denver?
Direct service availability varies by season and airline. Compare live schedules on Cheap Flights Worldwide for current nonstop and connecting options on this route.
What is the reverse flight route from Denver to St Louis?
The reverse city pair is Denver to St Louis. Distance is the same great-circle measure (8,752 km); block time can differ with winds and schedules.
Which countries does the St Louis to Denver route connect?
This route connects SN (St Louis) with United States (Denver).