Denver, CO DEN to St. Louis, MO STL flight with American Airlines

Thu, Aug 06
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American Airlines
frontier airlines
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American Airlines
frontier airlines
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Malta Air
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2,000+ travel companies
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Journey information

Overview: Denver, CO to St. Louis, MO flight

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Flights from Denver, CO to St. Louis, MO depart on average 59 times per day, taking around 3h 4m. Cheap flight tickets for this journey start at $54 if you book in advance.

There are 3 flights per day. The earliest flight runs at 00:04, the last at 23:58. The fastest flight covers the 794 miles (1279 km) distance in 2h 8m. June is the cheapest month to fly.

Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information
Distance
794 miles (1279 km)
Average flight duration
3h 4m
Cheapest ticket price
$54
Flights per day
59
Direct flights
3
Fastest flight
2h 8m
First flight
12:04 AM
Last flight
11:58 PM
Cheapest Month
Jun
Cheapest Day
Mon
High Season
Jan - Mar
Low Season
Apr - Jun
Busiest Day
Thu
Least Busy Day
Thu
Best time to book
42 days
Fares are the lowest economy prices found on Omio. Early booking often means lower prices. Prices change daily and are subject to availability. Discount cards, coach trips, and booking fees are not included.
Price information

The cheapest and fastest flights from Denver, CO to St. Louis, MO

Showing times and prices for Aug 06

Cheapest price

$157

Average price

$168

Fastest journey

13 h 2 m

Average duration

13 h 31 m

Flights per day

2

Distance

1279 km

Cheap tickets

The best way to find a cheap flight ticket from Denver, CO to St. Louis, MO is to book your journey as far in advance as possible and to avoid traveling at rush hour.

The average ticket from Denver, CO to St. Louis, MO will cost around $168 if you buy it on the day, but the cheapest tickets can be found for only $157.

Fast flights

Of the 2 flights that leave Denver, CO for St. Louis, MO onThu, Aug 06, 2 travel direct so it’s quite easy to avoid journeys where you’ll have to change along the way.

On Thu, Aug 06 the direct flights cover the 1279 km distance in an average of 13 h 31 m but if you time it right, some flights will get you there in just 13 h 2 m .

On Thu, Aug 06 the longest flights will take 14 h and usually involve a change or two along the way, but you might be able to save a few pennies if you’re on a budget.

  • frontier airlines
    12:00 PM14h00
    Denver, CO
    2:00 AMSt. Louis, MO
    $1571One-way
    0 transfers
  • frontier airlines
    2:24 PM13h02
    Denver, CO
    3:26 AMSt. Louis, MO
    $1801One-way
    0 transfers

Travel Information

Compare train, bus, and flight for Denver, CO to St. Louis, MO

Omio recommends booking the bus as it is the most popular option from Denver, CO to St. Louis, MO among Omio's users. If you are prioritising price take the bus with prices starting from $83. For those with little time consider booking a flight which can get you there in 3h 4m. The ticket price range depends on the travel mode: a bus costs an average of $83, and a train costs an average of $163.

Distance: 794 miles (1279 km)

Compare flight with

Flight
Most popular
Bus
Train

$191

Average price

$148

Average price

Cheapest

$317

Average price

6h 4m

Average total duration

Fastest

3h 4m

Onboard

+

3h 0m

Additional time*

16h 59m

Average total duration

16h 29m

Onboard

+

30m

Additional time*

23h 34m

Average total duration

23h 4m

Onboard

+

30m

Additional time*

American Airlines

Most popular airline

Greyhound

Most popular bus company

Amtrak

Most popular train company

Direct Options

Direct Options

Direct Options

The cheapest way to travel from Denver, CO to St. Louis, MO is a bus with an average price of $148.

This is compared to other travel options from Denver, CO to St. Louis, MO:

A bus is $43 less than a flight for this route with tickets for a flight from Denver, CO to St. Louis, MO costing on average $191.

A bus is $169 less than a train for this route with tickets for a train from Denver, CO to St. Louis, MO costing on average $317.

The fastest way to travel from Denver, CO to St. Louis, MO is by flight with an average journey time of 3h 4m.

Other travel options to St. Louis, MO take longer:

Bus takes on average 16h 29m.

Train takes on average 23h 4m.

It's helpful to compare your options as there are 3 ways to travel between Denver, CO and St. Louis, MO including taking a train, bus, and flight.
We recommend using the bus as it is the most popular way to get from Denver, CO to St. Louis, MO among Omio's users.

Live departures

Denver, CO to St. Louis, MO flight times

The table below shows live departures for Denver, CO to St. Louis, MO flights for today, Wednesday, August 5. You can also manually refresh the results below to see updated flight journeys.

Last updated at
ProviderDepartsDurationArrivesTransfers
Tickets
frontier airlines3:25 PM Denver, CO
20h52
12:17 PM St. Louis, MO0 transfersDirect

This is the last flight of the day.

Find all the dates and times for this journey

Compare prices and tickets Denver, CO to St. Louis, MO by train, bus, or flight

Compare train, bus, and flight prices over the next three weeks. See the best deals at a glance, find the lowest fares, and choose the option that fits your budget.

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Why should you book Denver, CO to St. Louis, MO flights with Omio?

American Airlines as well as frontier airlines offer flights services from Denver, CO to St. Louis, MO.
Omio is an official ticket reseller for all your travel options from Denver, CO to St. Louis, MO.

Why book with Omio vs American Airlines?

  • Compare with other providers: On Omio, you can not only buy tickets for American Airlines, but also compare tickets for the likes of frontier airlines to find the best option for your trip from Denver, CO to St. Louis, MO.
  • Designed for International Travelers: Omio is in your language including 24/7 customer service and offers multiple payment options, including PayPal, credit cards, and bank transfer, in your preferred currency.
  • Compare all your options: Omio allows you to compare American Airlines with all available travel options, which are train, bus and flight to ensure you get the best deal for traveling from Denver, CO to St. Louis, MO.

Why book with Omio over Trip, Edreams or Skyscanner?

  • Compare with other providers: On Omio, you can also compare tickets for the likes of frontier airlines to find the best option for your trip from Denver, CO to St. Louis, MO.
  • Multiple modes of transport: Omio allows you to compare travel options including train, bus and flight to find the ideal travel option from Denver, CO to St. Louis, MO.

Airlines: American Airlines, frontier airlines from Denver, CO to St. Louis, MOFind the best flights between Denver, CO to St. Louis, MO with Omio's travel partners American Airlines, frontier airlines from $54. We can find you the best deals, schedules and tickets when comparing and booking the best trip.

American Airlines

About
American Airlines is one of the largest airlines in the world, connecting travelers to hundreds of destinations across the United States, Latin America, Europe, Asia, and beyond. Operating from major hubs such as Dallas/Fort Worth, Miami, and Charlotte, American offers a wide range of travel options. Passengers can choose from Economy with affordable fares, Premium Economy with extra space, or Business and First Class featuring flat-bed seats, premium dining, and lounge access. With a modern fleet and membership in the oneworld alliance, American Airlines combines global reach with comfort and reliability.
Luggage & cancellation policy
Average Duration
7h 36m
Cheapest Price
$493
Luggage included
1 carry-on bag (22 x 14 x 9 inches) and 1 personal item (18 x 14 x 8 inches) included in most fares
Additional luggage
Checked bags fees vary by route. First checked bag typically $30, second $40 on domestic flights
Cancellation Policy
Basic Economy tickets cannot be changed or refunded. Other fares allow changes with fee, refunds subject to fare rules.
Pregnant on board
Passengers can fly up to 36 weeks for single pregnancies, 32 weeks for multiple pregnancies. Medical certificate required within 7 days of departure if within 4 weeks of due date.
Unaccompagned minor
Children ages 5-14 can travel alone using American Airlines Unaccompanied Minor Service. Service fee is $150 each way.
Amenities on board the airplane
Wifi
Food sold onboard
USB plugs
Accessibility
American Airlines provides wheelchair assistance and special services for passengers with disabilities. Assistance must be requested at least 48 hours before departure.
Pets
Small dogs and cats allowed in cabin for $125 fee. Must be in approved carrier under seat. Service animals allowed.
Entertaiment on board

frontier airlines

About
Frontier Airlines is a major American ultra-low-cost carrier headquartered in Denver, Colorado, operating flights to over 120 destinations across the United States, Caribbean, Mexico, and Central America. Known for its "Low Fares Done Right" philosophy, Frontier focuses on offering affordable travel by allowing passengers to choose and pay only for the services they need, such as seat selection or baggage. The airline is also recognized for its commitment to fuel efficiency, claiming to be "America's greenest airline" due to its modern, lightweight aircraft and operational practices. A distinctive feature of Frontier is the animal featured on the tail of each aircraft, highlighting North American wildlife.
Luggage & cancellation policy
Average Duration
2h 8m
Cheapest Price
$54
Luggage included
Personal item (18 x 14 x 8 inches) included
Additional luggage
Checked bag fees start at $79 per bag
Cancellation Policy
Non-refundable tickets, changes permitted for fee starting at $79 plus fare difference
Pregnant on board
Pregnant women can travel up to 7 days before due date, medical certificate required after 36 weeks
Unaccompagned minor
Children ages 5-14 can travel alone for $100 fee each way, must be nonstop flight only
Amenities on board the airplane
Wifi
Accessibility
Frontier Airlines offers assistance for passengers with disabilities, including wheelchair service and boarding assistance. Passengers are encouraged to request these services in advance to ensure availability and proper arrangements.

Complete guide to St. Louis, MO

Things to do in St. Louis, MO

Discover the best of St. Louis, MO — top attractions, local food, transport tips, budget advice, and currency essentials. Plan your perfect St. Louis, MO trip today.

  • Must visit

Saint Louis Art Museum

Vast art museum in Forest Park with global collections from antiquity to modern works and strong free general admission.

  • Recommended

Missouri History Museum

Leading history museum covering St. Louis, Missouri, and national stories through rotating exhibitions in Forest Park.

  • Recommended

Saint Louis Science Center

Interactive science museum with hands-on exhibits, planetarium, and family-friendly displays near Forest Park.

United States dollar ($)

Moderate for U.S. city breaks: hotels and dining are reasonable, transit is limited, and attractions often cost less than in larger U.S. tourist cities.

Average meal costs

Budget
$10-15 for fast food or casual lunch.
Mid-range
$20-35 per person for a mid-range restaurant meal.
Fine dining
$60+ per person at upscale restaurants.
Coffee
$3-5 for coffee or cappuccino.

Tipping culture

Tip 18-20% at restaurants, $1-2 per drink at bars, and 10-15% for taxis. Cafes often have tip jars or screen prompts.

FAQs: Denver, CO to St. Louis, MO Flight

Find answers to the most common questions about traveling from Denver, CO to St. Louis, MO by flight. From journey times and ticket prices to direct connections, first and last departures, and even whether the route is scenic, our FAQs cover everything you need to plan your trip. Whether you’re looking for the fastest flight, the cheapest option, or tips for making the most of your visit at St. Louis, MO, this guide helps you travel smarter and with confidence.

FAQs
Cheap plane tickets from Denver, CO to St. Louis, MO can start from as little as $54 when you book in advance. The average flight ticket price for Denver, CO to St. Louis, MO is $191 ; however, prices vary depending on the time of day and class and they tend to be more expensive on the day.
The average journey time by plane from Denver, CO to St. Louis, MO is 2h 8m to travel the 794 miles (1279 km) long route. Journey times can vary on weekends and holidays, so use our Journey Planner to search for a specific date.
The earliest flight from Denver, CO to St. Louis, MO leaves at 12:04 AM. Plan your trip with the Journey Planner from Omio.
The latest flight from Denver, CO to St. Louis, MO leaves at 11:58 PM.
Yes, there are 3 direct flights a day from Denver, CO to St. Louis, MO with . Schedules can vary on holidays or weekends with fewer direct flights.
When taking a flight from Denver, CO to St. Louis, MO, you can count on American Airlines, frontier airlines for the best way to get you to St. Louis, MO. You can also check all possible airlines who offer a service between Denver, CO and St. Louis, MO and compare the amenities they offer before buying a plane ticket.
Flights from Denver, CO to St. Louis, MO generally leave from Denver International Airport and arrive in St. Louis Lambert International Airport.Denver International Airport is 11 miles (18 km) away from Denver, CO city centre and St. Louis Lambert International Airport is 1 miles (2 km) from St. Louis, MO city centre.
The cheapest month for a flight from Denver, CO to St. Louis, MO is June.
It's helpful to compare your options as there are 3 ways to travel between Denver, CO and St. Louis, MO including taking a train, bus, and flight.
Since neither Denver, CO nor St. Louis, MO are in the Schengen Area, passport requirements depend on the specific immigration rules of United States and United States. Entry and visa requirements can be subject to change. For the latest information, check with your destination's embassy or consulate.
There is a time difference of 1 h between Denver, CO and St. Louis, MO all year round.
The best events to attend in St. Louis, MO include:
  • St. Louis Mardi Gras, a vibrant celebration featuring parades, live music, and festive activities in the Soulard neighborhood
  • St. Louis Art Fair, an annual event showcasing local and national artists with art exhibits, live performances, and culinary delights
  • Fair St. Louis, a multi-day Independence Day festival with fireworks, concerts, and family-friendly activities along the Gateway Arch.
The best holidays to experience in St. Louis, MO include:
  • Independence Day, vibrant fireworks and festive celebrations throughout the city
  • Labor Day, pleasant weather and various outdoor activities
  • Thanksgiving, a time for family gatherings with a charming autumn atmosphere.
The best season to visit St. Louis, MO is Spring or Fall. The best weather to explore St. Louis, MO is during April-May or September-October.
We recommend using the bus as it is the most popular way to get from Denver, CO to St. Louis, MO among Omio's users.
For domestic flights we recommend to arrive 1.5 to 2 hours before departure. Please check the website of your departure airport if in doubt. Some airports may offer booking time slots for security checks or offer additional information on when to get there based on time of day.
Most airlines permit carry-on bags that fit within specific dimensions (e.g., 22 x 14 x 9 inches or 56 x 36 x 23 cm), including handles and wheels. Bags must fit in the overhead bin or under the seat in front of you.
Many airlines impose weight limits, commonly ranging between 7 kg (15 lbs) and 12 kg (26 lbs). Typically, passengers are allowed one carry-on bag and one personal item (for example a purse, laptop bag, or backpack). Personal items must fit under the seat in front of you. Budget Airlines (like Ryanair or Wizz Air) have stricter size and weight limits, often requiring fees for larger carry-ons. Full-Service Airlines have more lenient policies, sometimes including more spacious dimensions or higher weight limits depending on your ticket class.
The list of items prohibited on an airplane varies by country and airline, but in general, the following items are not allowed in carry-on or checked baggage: Weapons and self-defence items, sharp objects, flammable materials, explosives, toxic substances, or liquids over 100ml (except for medications and baby essentials). In checked baggage, firearms (without authorization), explosives, large lithium batteries, and hazardous chemicals are prohibited. Electronic cigarettes must be in carry-on bags, while alcohol and dry ice have restrictions. Always check with your airline for specific regulations.
The currency used in the United States is the US Dollar (USD). For travelers, using cards is generally more convenient and widely accepted, especially credit and debit cards, while cash is useful for small purchases or places that do not accept cards.
In St. Louis, MO, travelers should be cautious in certain neighborhoods with higher crime rates, especially after dark. Common safety concerns include petty theft, pickpocketing, and occasional scams targeting visitors near popular attractions like the Gateway Arch. It’s advisable to stay in well-populated areas, avoid displaying valuables openly, and use reputable transportation services to minimize risks.
Pack lightweight, versatile clothing suitable for the destination's climate, and use secure, lockable luggage to protect belongings. Keep essential items like travel documents, medication, and valuables in a carry-on bag for easy access. Use packing organizers or cubes to maximize space and maintain order. Lastly, include a small first aid kit and personal hygiene items for added comfort during travel.

popular airports

Popular airports from Denver, CO to St. Louis, MO

Most Denver, CO to St. Louis, MO flights use the Denver International Airport to St. Louis Lambert International Airport airport pair. Use this guide to compare Denver, CO and St. Louis, MO airports on this route, check city-centre transport, alongside checking practicalities like airport facilities and services.

Departure airports in Denver
Arrival airports in St. Louis

Which Denver, CO airport do flights to St. Louis, MO leave from?

Flights from Denver, CO to St. Louis, MO depart from Denver International Airport. The airport is 11 miles (19 km) from Denver, CO city centre at 8500 Peña Blvd, Denver, CO 80249, USA.
Denver International Airport (DEN)8500 Peña Blvd, Denver, CO 80249, USAWifiShoppingParkingDiningATMTaxisAccessibilityWCHotelShowerLoungeLost and Found OfficeCar Rental
City-centre transport

Getting to Denver International Airport from Denver city centre

Denver International Airport is 18 km from Denver city centre. Public transport options include:

TrainA · 37m · $11 · every ~8 min
Bus83L, 83D · 1h 45m · $7 · every ~7 min

Denver International Airport airport facilities and services

Denver International Airport has practical services for this route, including Wifi, Shopping, Parking, Dining, ATM, Taxis, Accessibility, WC, Hotel, Shower, Lounge, Lost and Found Office, and Car Rental.

Food and drink

Food options include: Various restaurants in Jeppesen terminal and concourses, including American and intertiol cuisine.

Wi-Fi and ATMs

Free Wi-Fi available throughout the airport. ATMs are located throughout the terminal and concourses.

Luggage and lost property

Lost and found is available at the station.

Parking, taxis and toilets

Available at Denver International Airport: Parking, Taxis, WC.

Bike and car services

Available at Denver International Airport: Car Rental.

Accessibility

Accessibility facilities are available at Denver International Airport: Elevators, ramps.

Shops, hotels and contact

Nearby hotels include Westin Hotel connected to the terminal..

More options for your journey from Denver, CO to St. Louis, MO

Here are some other resources that might have the information you need

Most popular flights to and from St. Louis, MO and Denver, CO

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