Direct flights from St. Louis (STL) to Denver (DEN)

You can choose from 3 airline(s) with non-stop flights. It takes 2h 45min, a distance 1242 km.
STL
Lambert-Saint Louis International Airport
DEN
Denver International Airport
Depart
Return
1, Economy
1, Economy
Search flights
route-map
United States
STL St. Louis
route-path
United States
DEN Denver

Distance 772 miles (1242 km)

Flight time 2h 45min

Low-Cost Airlines with Non-Stop Flights from St. Louis to Denver

If you are planning to travel from St. Louis to Denver and looking for low-cost options, you're in luck! Several airlines offer non-stop flights between these two cities at affordable prices. Whether you're traveling for business or leisure, flying with these airlines will ensure a convenient and budget-friendly journey.

Southwest Airlines

Southwest Airlines is renowned for its low fares, excellent customer service, and non-stop flights to various destinations. With several daily flights between St. Louis (Lambert-Saint Louis International Airport) and Denver (Denver International Airport), Southwest Airlines is a popular choice for travelers. They offer competitive prices, no hidden fees, and a generous baggage policy, including two free checked bags per passenger.

Allegiant Air

Allegiant Air is another low-cost airline that operates non-stop flights from St. Louis to Denver. They provide affordable fares, allowing travelers to save money without compromising on comfort. Allegiant Air typically offers a limited number of flights per week, so it's important to plan your trip accordingly. Be sure to check their website for up-to-date flight schedules.

Frontier Airlines

Frontier Airlines offers budget-friendly travel options with non-stop flights from St. Louis to Denver. Known for their no-frills approach, Frontier Airlines allows passengers to customize their travel experience by adding only the services they require. They offer various fare types, including Basic and Classic, allowing travelers to choose the amenities that suit their needs and budget.

American Airlines

American Airlines, a major carrier, also operates non-stop flights between the two cities. Although not strictly a low-cost airline, American Airlines often offers competitive prices for these routes. With their extensive network and frequent flights, American Airlines provides travelers with flexibility and convenience.

When planning your trip, compare the fares and schedules of these airlines to find the best option for your needs. Keep in mind that fares may vary depending on the season, so booking in advance is advisable to secure the best deals. Additionally, it's always a good idea to check the airlines' official websites for any special promotions or offers that may further reduce your travel costs.

Traveling from St. Louis to Denver has never been easier or more affordable with these low-cost airlines. Whether you're visiting friends and family, exploring the outdoor wonders of the Rocky Mountains, or conducting business, these airlines will ensure a pleasant and cost-effective journey.

Frontier Airlines

Frontier Airlines low cost airline

Su
Mo
Tu
We
Th
Fr
Sa

low cost airline

1 daily flights

United Airlines

United Airlines

Su
Mo
Tu
We
Th
Fr
Sa

3 daily flights

Southwest Airlines

Southwest Airlines low cost airline

Su
Mo
Tu
We
Th
Fr
Sa

low cost airline

3-5 daily flights

Non-stop flights schedule from St. Louis to Denver

By browsing through the calendar, you can view all direct flight departures from Lambert-Saint Louis International Airport to Denver International Airport across various airlines. Simply select a timetable to access a list of flights, or make a search to find the most competitive prices.

Flights Schedule

Airline Flight Mon Tue Wed Thu Fri Sat Sun
Frontier Airlines
Frontier Airlines
F9 699
Su
14:41
Mo
14:11
Tu
We
14:11
Th
14:41
Fr
14:11
Sa
14:11
United Airlines
United Airlines
UA 690
Su
08:39
Mo
08:39
Tu
08:39
We
08:39
Th
08:39
Fr
08:39
Sa
08:39
United Airlines
United Airlines
UA 2363
Su
13:38
Mo
13:38
Tu
13:38
We
13:38
Th
13:38
Fr
13:38
Sa
13:38
United Airlines
United Airlines
UA 5221
Su
16:34
Mo
16:25
Tu
16:25
We
16:25
Th
16:25
Fr
16:33
Sa
16:32
Southwest Airlines
Southwest Airlines
WN 697
Su
Mo
05:50
Tu
05:50
We
05:50
Th
05:50
Fr
05:50
Sa
Southwest Airlines
Southwest Airlines
WN 1381
Su
06:40
Mo
Tu
We
Th
Fr
Sa
Southwest Airlines
Southwest Airlines
WN 425
Su
Mo
Tu
We
Th
Fr
Sa
06:45
Southwest Airlines
Southwest Airlines
WN 2742
Su
Mo
08:10
Tu
08:10
We
08:10
Th
08:10
Fr
08:10
Sa
Southwest Airlines
Southwest Airlines
WN 444
Su
10:55
Mo
Tu
We
Th
Fr
Sa
Southwest Airlines
Southwest Airlines
WN 700
Su
13:20
Mo
Tu
We
Th
Fr
Sa
13:05
Southwest Airlines
Southwest Airlines
WN 791
Su
Mo
13:15
Tu
13:15
We
13:15
Th
13:15
Fr
13:15
Sa
Southwest Airlines
Southwest Airlines
WN 2495
Su
18:35
Mo
17:25
Tu
17:25
We
17:25
Th
17:25
Fr
17:25
Sa
17:05
Southwest Airlines
Southwest Airlines
WN 1252
Su
Mo
20:20
Tu
20:20
We
20:20
Th
20:20
Fr
20:20
Sa
Southwest Airlines
Southwest Airlines
WN 1994
Su
21:45
Mo
Tu
We
Th
Fr
Sa

St. Louis to Denver non-stop flight price statistics

This graph provides insight into the average prices for direct flights between Lambert-Saint Louis International Airport (STL) and Denver International Airport (STL). The prices are based on user searches and are calculated using the cheapest fares found each month for a round-trip ticket with one adult passenger.
It's important to note that these prices are subject to change and may vary based on the availability of data for this particular route. Nonetheless, this information can be an invaluable resource for anyone looking to plan their travels and stay within a specific budget. By utilizing this tool, you can gain valuable insights into the most cost-effective times to travel and secure the best possible deals on flights between these two destinations.

€207 Approximately

€162 Jan
€152 Feb
€157 Mar
€166 Apr
€168 May
€167 Jun
€176 Jul
€224 Aug
€214 Sep
€302 Oct
€302 Nov
€302 Dec
The estimated cost for a flight from Lambert-Saint Louis International Airport (STL) and Denver International Airport (STL)
Lambert-Saint Louis International Airport

Departing from Lambert-Saint Louis International Airport (STL)

Saint Louis (STL) is a large airport in United States.

Show all flights from STL →
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Denver International Airport

Arriving to Denver International Airport (DEN)
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Denver International (DEN) is the third largest airport in United States.

Show all flights from DEN →

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Aircrafts flying on this route

The following is a list of aircraft types utilized on this route, along with their corresponding seat capacity and available classes.
  • airplane

    A320neo

    Frontier Airlines
    186 seats (all economy)
  • airplane

    Airbus A320

    United Airlines
    150 seats (all economy)
  • airplane

    Airbus A319

    United Airlines
    126 seats (all economy)
  • airplane

    Embraer 175 (Enhanced Winglets)

    United Airlines
    70 seats (all economy)
  • airplane

    Boeing 737MAX 8 Passenger

    Southwest Airlines
    168 seats (all economy)
  • airplane

    Boeing 737-800 (winglets) Passenger/BBJ2

    Southwest Airlines
    175 seats (all economy)
  • airplane

    Boeing 737-700 (winglets) Passenger/BBJ1

    Southwest Airlines
    143 seats (all economy)

St. Louis to Denver: Flight information

Here are some key points to keep in mind before your trip:
  • ticket

    Cheapest flight found

    152€
  • clock

    Average flight time

    2:45 h
  • checkmark-calendar

    Cheapest month for a flight

    February
  • send

    Most popular airline

    Frontier Airlines
  • regular-calendar

    Flights per week

    21

Hotels near Denver International Airport

Frequently asked questions (FAQ)

How much time does it take to fly from Lambert-Saint Louis International Airport to Denver International Airport?

The average flight time between Lambert-Saint Louis International Airport and Denver International Airport typically takes 2h 45min

How many airlines offer nonstop flights between St. Louis and Denver?

3 airline(s): Frontier Airlines, United Airlines, Southwest Airline provide nonstop flights to Denver International Airport (DEN).

What is the typical flight cost from St. Louis to Denver?

The lowest fare for a direct flight between Lambert-Saint Louis International Airport and Denver International Airport is 161€, and you can get it in April. Flight prices rise in October and the average price for a non-stop flight is 299€

Which airline is the most in-demand on this route?

Frontier Airlines is the most popular airline with direct flights between St. Louis to Denver.

How far is it to fly between St. Louis to Denver?

The shortest distance is 1242 kilometers.

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