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

Fri, Nov 07
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Frontier Airlines
American Airlines
Vueling Airlines
easyJet
Ryanair
1,000+ travel companies
Frontier Airlines
American Airlines
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easyJet
Ryanair
1,000+ travel companies
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Journey information

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

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Take a flight from Denver, CO to St. Louis, MO and enjoy the approximately 794 miles (1279 km) long journey. Find schedules and pricing options for a convenient and affordable trip.

There are 2 flights per day. The earliest flight runs at 00:04, the last at 23:08.

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
Cheapest alternative travel mode
Bus from $100 (€82)
Distance
794 miles (1279 km)
Average flight duration
3h 46m
Flights per day
33
Direct flights
2
First flight
00:04
Last flight
23:08
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
Cheapest alternative travel mode
Bus from $100 (€82)

Travel Information

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

Omio recommends booking the train 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 €82. For those with little time consider booking a bus which can get you there in 16h 27m. The ticket price range depends on the travel mode: a bus costs an average of €82, and a train costs an average of €362.

Distance: 794 miles (1279 km)

Compare train with

Most popular
Train
Bus

€362

Average price

€112

Average price

Cheapest

22h 47m

Average total duration

22h 17m

Onboard

+

30m

Additional time*

16h 57m

Average total duration

Fastest

16h 27m

Onboard

+

30m

Additional time*

Amtrak

Most popular train company

Greyhound

Most popular bus company

Direct Options

Direct Options

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, Thursday, November 6. You can also manually refresh the results below to see updated flight journeys.

Last updated at 6:41 PM
ProviderDepartsDurationArrivesTransfers
Tickets
unitedUA1956 · UA23846:45 PM Denver International Airport
6h02
12:47 AM St. Louis Lambert International Airport1 transfer
american_airlinesAA1313 · AA25717:05 PM Denver International Airport
7h16
2:21 AM St. Louis Lambert International Airport1 transfer
american_airlinesAA2579 · AA1668+republic_airlinesAA45767:26 PM Denver International Airport
10h30
5:56 AM St. Louis Lambert International Airport2 transfers
american_airlinesAA2579 · AA10107:26 PM Denver International Airport
9h03
4:29 AM St. Louis Lambert International Airport1 transfer
american_airlinesAA2579 · AA22467:26 PM Denver International Airport
6h04
1:30 AM St. Louis Lambert International Airport1 transfer
american_airlinesAA2579 · AA10107:26 PM Denver International Airport
9h03
4:29 AM St. Louis Lambert International Airport1 transfer
american_airlinesAA2579 · AA1290+republic_airlinesAA45767:26 PM Denver International Airport
10h30
5:56 AM St. Louis Lambert International Airport2 transfers
frontier_airlinesF92349 · F931088:13 PM Denver International Airport
23h44
7:57 PM St. Louis Lambert International Airport1 transfer
alaska_airlinesAS682 · AS3888:23 PM Denver International Airport
24h55
9:18 PM St. Louis Lambert International Airport1 transfer
alaska_airlinesAS682 · AS4728:23 PM Denver International Airport
9h36
5:59 AM St. Louis Lambert International Airport1 transfer
unitedUA586 · UA5707 · UA41858:25 PM Denver International Airport
7h15
3:40 AM St. Louis Lambert International Airport2 transfers
unitedUA13158:25 PM Denver International Airport
2h03
10:28 PM St. Louis Lambert International Airport0 transfersDirect
unitedUA586 · UA1209 · UA44878:25 PM Denver International Airport
8h20
4:45 AM St. Louis Lambert International Airport2 transfers
unitedUA2265 · UA1335 · UA44878:30 PM Denver International Airport
8h15
4:45 AM St. Louis Lambert International Airport2 transfers
unitedUA2327 · UA549 · UA44878:42 PM Denver International Airport
8h03
4:45 AM St. Louis Lambert International Airport2 transfers
unitedUA1505 · UA34688:45 PM Denver International Airport
8h57
5:42 AM St. Louis Lambert International Airport1 transfer
unitedUA578 · UA1609 · UA19118:47 PM Denver International Airport
7h35
4:22 AM St. Louis Lambert International Airport2 transfers
american_airlinesAA420 · AA10109:49 PM Denver International Airport
6h40
4:29 AM St. Louis Lambert International Airport1 transfer
alaska_airlinesAS535 · AS38810:37 PM Denver International Airport
22h41
9:18 PM St. Louis Lambert International Airport1 transfer
unitedUA489 · UA191110:41 PM Denver International Airport
5h41
4:22 AM St. Louis Lambert International Airport1 transfer
unitedUA1923 · UA448711:06 PM Denver International Airport
5h39
4:45 AM St. Louis Lambert International Airport1 transfer
american_airlinesAA1285 · AA256211:10 PM Denver International Airport
6h55
6:05 AM St. Louis Lambert International Airport1 transfer
american_airlinesAA1832 · AA101011:36 PM Denver International Airport
4h53
4:29 AM St. Louis Lambert International Airport1 transfer
Friday, November 7
american_airlinesAA2762+republic_airlinesAA457612:43 AM Denver International Airport
5h13
5:56 AM St. Louis Lambert International Airport1 transfer
frontier_airlinesF94967 · F931081:36 AM Denver International Airport
18h21
7:57 PM St. Louis Lambert International Airport1 transfer
frontier_airlinesF94967 · F920181:36 AM Denver International Airport
24h36
2:12 AM St. Louis Lambert International Airport1 transfer
alaska_airlinesAS679 · AS1314 · AS4721:46 AM Denver International Airport
28h13
5:59 AM St. Louis Lambert International Airport2 transfers
alaska_airlinesAS679 · AS3008 · AS4721:46 AM Denver International Airport
28h13
5:59 AM St. Louis Lambert International Airport2 transfers
alaska_airlinesAS679 · AS499 · AS3881:46 AM Denver International Airport
19h32
9:18 PM St. Louis Lambert International Airport2 transfers
alaska_airlinesAS679 · AS2249 · AS4721:46 AM Denver International Airport
28h13
5:59 AM St. Louis Lambert International Airport2 transfers
alaska_airlinesAS679 · AS3008 · AS3881:46 AM Denver International Airport
19h32
9:18 PM St. Louis Lambert International Airport2 transfers
alaska_airlinesAS679 · AS2082 · AS4721:46 AM Denver International Airport
28h13
5:59 AM St. Louis Lambert International Airport2 transfers
alaska_airlinesAS679 · AS3365 · AS4721:46 AM Denver International Airport
28h13
5:59 AM St. Louis Lambert International Airport2 transfers
alaska_airlinesAS679 · AS1407 · AS4721:46 AM Denver International Airport
28h13
5:59 AM St. Louis Lambert International Airport2 transfers
unitedUA24701:50 AM Denver International Airport
2h04
3:54 AM St. Louis Lambert International Airport0 transfersDirect
alaska_airlinesAS615 · AS3883:02 AM Denver International Airport
18h16
9:18 PM St. Louis Lambert International Airport1 transfer
alaska_airlinesAS615 · AS4723:02 AM Denver International Airport
26h57
5:59 AM St. Louis Lambert International Airport1 transfer
frontier_airlinesF9777 · F920185:29 AM Denver International Airport
20h43
2:12 AM St. Louis Lambert International Airport1 transfer
frontier_airlinesF9777 · F931085:29 AM Denver International Airport
14h28
7:57 PM St. Louis Lambert International Airport1 transfer
frontier_airlinesF94753 · F920765:29 AM Denver International Airport
11h55
5:24 PM St. Louis Lambert International Airport1 transfer
american_airlinesAA2305 · AA24756:59 AM Denver International Airport
8h36
3:35 PM St. Louis Lambert International Airport1 transfer

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 or bus

Compare train and bus 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.

Fri
Nov 07
Sat
Nov 08
Sun
Nov 09
Mon
Nov 10
Tue
Nov 11
Wed
Nov 12
Thu
Nov 13

Airlines: Frontier Airlines, American Airlines from Denver, CO to St. Louis, MOFind the best flights between Denver, CO to St. Louis, MO with Omio's travel partners Frontier Airlines, American Airlines from $100 (€82). 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
American Airlines frequency
21 a day
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 9m
Cheapest Price
$56 (€45)
Frontier Airlines frequency
5 a day
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.

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 $135 (€110) when you book in advance. The average flight ticket price for Denver, CO to St. Louis, MO is $245 (€199); however, prices vary depending on the time of day and class and they tend to be more expensive on the day.
On average the Denver, CO to St. Louis, MO flight travel time is 2 h 8 min   for the 792 mile (1278 km) long route, but the duration can vary if you travel on weekends and holidays.
The earliest flight from Denver, CO to St. Louis, MO leaves at 12: 29AM. Plan your trip with the Journey Planner   from Omio.
The latest flight from Denver, CO to St. Louis, MO leaves at 11: 41PM.
There are 19 flights a day from Denver, CO to St. Louis, MO which require at least one change with Frontier Airlines. Schedules can vary on holidays or weekends with fewer flights.
When taking a flight from Denver, CO to St. Louis, MO, you can count on Frontier Airlines for the best way to get you to St. Louis, MO. You can also check all possible airlines who offer a service from Denver, CO to St. Louis, MO and compare the amenities they offer before buying a plane ticket.
The cheapest month to travel from Denver, CO to St. Louis, MO by plane is January.
You have options as you can travel between Denver, CO and St. Louis, MO 3 different ways: bus, train or flight.
Since neither Denver, CO nor St. Louis, MO are in the Schengen Area, passport requirements depend on the specific immigration rules of USA and USA. 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 seasons to visit St. Louis, MO are Spring or Fall. The best weather to explore St. Louis, MO is during April-May or September-October.
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.

popular airports

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

Denver
St. Louis
The major airport for departures in Denver is Denver International Airport. Find all the information you need to know about services, amenities and connections at Denver International Airport for your trip from Denver to St. Louis.
Amenities at airport
WifiWifi
ShoppingShopping
ParkingParking
DiningDining
ATMATM
TaxisTaxis
AccessibilityAccessibility
WCWC
HotelHotel
ShowerShower
LoungeLounge
Lost and Found OfficeLost and Found Office
Car RentalCar Rental
information
ticketOfficeHours
Distance to city center
18 km
carConnection
Car connection
Peña Blvd, Exit 284
Wifi
Wifi
  • Free Wi-Fi available throughout the airport.
Shopping
Shopping
  • Shops located in Jeppesen terminal and concourses, including Duty-Free and local brands.
Parking
Parking
  • Parking available, approximately 4.7€ ($5) per hour, parkade adjacent to terminal.
Dining
Dining
  • Various restaurants in Jeppesen terminal and concourses, including American and intertiol cuisine.
Taxis
Taxis
  • Available outside the terminal.
Accessibility
Accessibility
  • Elevators, ramps
WC
WC
  • Available throughout the airport.
Hotel
Hotel
  • Westin Hotel connected to the terminal.
Shower
Shower
  • Showers available at the Westin Hotel, approximately $20.
Lounge
Lounge
  • Multiple lounges available, including United Club and Delta Sky Club.
Lost and Found Office
Lost and Found Office
  • Lost and Found located in Jeppesen terminal, Level 5.
Car Rental
Car Rental
  • Car rental services available on airport property, shuttle service to rental car lots.
Public transit options for Denver International Airport
  • A Line train, Denver Airport Station, 37 minutes to Union Station

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

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