Direct (non-stop) flights from Saint Louis (STL) to Denver (DEN)
Find comprehensive flight information, schedules, and booking details for direct flights from Saint Louis (STL), US to Denver (DEN), US. This popular route is operated by 3 airlines, offering multiple daily departures.• Flight Duration: 2h 10m - 2h 39m (average flight time)• Distance: 772 miles (1242 km) (air miles between airports)• Daily Flights: 7-15 flights (scheduled departures per day)
Saint Louis (STL)
US
Denver (DEN)
US
FLIGHT TIME
2h 10m - 2h 39m
FLIGHT DISTANCE
772 miles (1242 km)
2h 20m - 2h 34m
05:35
21:45
772 miles (1242 km)
March
3 (Show)
77
Terminal 2 & Terminal 3 (Saint Louis (STL))
Terminal B & Terminal A (Denver (DEN))
Flight Schedule
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Airlines Operating This Route
Southwest Airlines (WN), United Airlines (UA), Frontier Airlines (F9)
Click any airline to view their specific flight schedules, policies, and route details for this connection. You can also explore flights from Saint Louis (STL) and flights to Denver (DEN).
Route Insights
Route Demand
This route sees high demand with 77 weekly flights, making it one of the busiest connections between St Louis (STL) and Denver (DEN).
Route Importance
Multiple airlines compete on this route (3 carriers), indicating its significance in connecting St Louis (STL) and Denver (DEN). This competition often leads to competitive pricing and multiple daily departure options.
Best Time to Fly
Best Value Period
March typically offers the best value for travelers, with lower average fares compared to peak travel periods.
Price Trends
Price variation throughout the year is significant, with Mar being the most affordable month and prices increasing during peak travel seasons.
Distance & Duration Explained
Route Distance
At 772 miles (1242 km), this is an ultra-long-haul route between St Louis (STL) and Denver (DEN), requiring larger aircraft and extended flight times.
Flight Duration
Flight duration averages 2h 10m - 2h 39m, with actual times ranging from 2h 20m - 2h 34m depending on aircraft type, wind conditions, and routing.
Airline Comparison
Available Airlines
Travelers have 3 airline options on this route: Southwest Airlines, United Airlines, Frontier Airlines. Each airline offers different schedules, pricing, and service levels to meet various travel needs.
Flight Frequency
Southwest Airlines operates the most flights on this route with 7 daily departures, followed by United Airlines and Frontier Airlines.
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Best Time to Visit & Travel Planning
Cheapest Day
Cheapest Month
Average Fare
$518
Travel Planning Tips for Saint Louis (STL) to Denver (DEN)
- Best Day to Book
Wednesday typically offers the lowest fares for flights from Saint Louis (STL) to Denver (DEN). Consider booking on this day for potential savings.
- Best Month to Travel
October is generally the cheapest month to fly from Saint Louis (STL) to Denver (DEN). Plan your trip during this month for the best deals.
- Average Flight Price
The average fare for flights from Saint Louis (STL) to Denver (DEN) is approximately $518. Prices may vary based on booking time, season, and airline.
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Related Pages
Related Airports
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Frequently Asked Questions
How many flights operate from St Louis (STL) to Denver (DEN)?
There are 11 direct flights operating from St Louis (STL) to Denver (DEN). Approximately 7-15 flights daily.
Which airlines operate flights from St Louis (STL) to Denver (DEN)?
3 airlines operate on this route: Southwest Airlines, United Airlines, Frontier Airlines.
How long is the flight from St Louis (STL) to Denver (DEN)?
The flight duration from St Louis (STL) to Denver (DEN) is approximately 2h 10m - 2h 39m.
What is the distance from St Louis (STL) to Denver (DEN)?
The distance from St Louis (STL) to Denver (DEN) is 772 miles (1242 km).
What is the flight time range for this route?
Flight times on this route range from 2h 20m - 2h 34m.
What are the earliest and latest flight departure times?
The earliest flight departs at 05:35 and the latest flight departs at 21:45.
What is the cheapest month to fly from St Louis (STL) to Denver (DEN)?
March is typically the cheapest month to fly on this route.
How many flights operate per week on this route?
Approximately 77 flights operate per week from St Louis (STL) to Denver (DEN).
What types of aircraft operate on this route?
This route is served by Boeing 737MAX 8 Passenger, Boeing 737-700 (winglets) Passenger/BBJ1, Airbus A320, Boeing 737-800 (winglets) Passenger/BBJ2, Airbus A321neo.
What is the average flight price from St Louis (STL) to Denver (DEN)?
The average flight price for a round-trip ticket from St Louis (STL) to Denver (DEN) is approximately $175 USD. Prices can vary based on booking time, season, and airline.
When is the best time to book flights from St Louis (STL) to Denver (DEN) for the lowest prices?
March is typically the cheapest month to fly from St Louis (STL) to Denver (DEN). Booking in advance and avoiding peak travel seasons can help you find better deals.
How many airlines offer flights from St Louis (STL) to Denver (DEN)?
3 airlines offer direct flights from St Louis (STL) to Denver (DEN), providing travelers with multiple options for scheduling and pricing.
How far is Denver (DEN) from St Louis (STL)?
The distance from St Louis (STL) to Denver (DEN) is 772 miles (1242 km). This is a long-haul flight route.
How long does it take to fly from St Louis (STL) to Denver (DEN)?
The flight time from St Louis (STL) to Denver (DEN) is approximately 2h 10m - 2h 39m. Actual flight duration may vary based on weather conditions, aircraft type, and routing.
What city does Denver (DEN) serve?
Denver (DEN) serves Denver, US.