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$29+ Cheap flights from Missouri to Denver (DEN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
STL — DEN
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
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Cheap flight deals from Missouri to Denver

Cheapest flights from Missouri to Denver
Explore the most affordable flight options available from Missouri to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

This Frontier deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:45 pmMCI - DEN
Nonstop2h 04mFrontier
Mon 1/55:09 pmDEN - MCI
Nonstop1h 41mFrontier
Deal found 12/20$174
This Cheapflightsfares deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:27 pmSTL - DEN
1 stop7h 37mFrontier
Mon 1/56:15 amDEN - STL
1 stop12h 52mFrontier
Deal found 12/22$212
This Kiwi.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:45 pmMCI - DEN
Nonstop2h 04mFrontier
Sat 1/35:10 pmDEN - MCI
Nonstop1h 41mFrontier
Deal found 12/21$219
This Frontier deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:45 pmMCI - DEN
Nonstop2h 04mFrontier
Sun 1/45:10 pmDEN - MCI
Nonstop1h 41mFrontier
Deal found 12/21$231
This Priceline deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:19 pmSTL - DEN
1 stop7h 14mFrontier
Mon 1/59:24 amDEN - STL
1 stop12h 09mFrontier
Deal found 12/21$242
This Expedia deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/268:42 pmSTL - DEN
1 stop13h 13mFrontier
Fri 1/303:38 pmDEN - STL
Nonstop2h 06mFrontier
Deal found 12/21$245
This Kiwi.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2110:10 pmSTL - DEN
1 stop6h 48mFrontier
Wed 1/76:50 amDEN - STL
Nonstop2h 12mFrontier
Deal found 12/21$247
This Frontier deal was found by Cheapflights users on 12/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/278:45 pmMCI - DEN
Nonstop2h 04mFrontier
Sat 1/35:10 pmDEN - MCI
Nonstop1h 41mFrontier
Deal found 12/20$251
This Super.com deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:27 pmSTL - DEN
1 stop7h 37mFrontier
Sat 1/36:50 amDEN - STL
Nonstop2h 12mFrontier
Deal found 12/21$255
This Super.com deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:27 pmSTL - DEN
1 stop7h 37mFrontier
Thu 1/111:59 pmDEN - STL
1 stop7h 13mFrontier
Deal found 12/22$259
This Travelocity deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:42 amSTL - DEN
1 stop12h 26mFrontier
Sat 1/36:50 amDEN - STL
Nonstop2h 12mFrontier
Deal found 12/21$261
This Travelocity deal was found by Cheapflights users on 12/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2411:33 amMCI - DEN
1 stop11h 35mFrontier
Mon 12/295:09 pmDEN - MCI
Nonstop1h 41mFrontier
Deal found 12/21$262

Find flight deals from Missouri to Denver

Keep the following information in mind while searching for Missouri to Denver flight deals. Data was last updated December 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$79
(Super.com)

One-way from

$29
(Frontier)

Popular in

March

Cheapest in

October

Average price

$239

Good round-trip deal

$215 or less

Good one-way deal

$140 or less
Provider with most accurate pricing for Lambert-St Louis-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Denver Intl flights.
Search Deals
From Missouri to Denver Intl
Search Deals
One-way flight from Missouri to Denver Intl
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Missouri to Denver Intl.
Search Deals
Price to beat on a one-way flight from Missouri to Denver Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Missouri to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2025.
Use the filters below to find and compare flights from Missouri to Denver that are best for you.

Fly from

Missouri

Fly to

Denver

Route

Depart

Return

Price

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Fri 1/9

7:43 pm-9:15 pm

Nonstop2h 32m

Denver Intl

Sat 1/10

6:50 am-10:02 am

Nonstop2h 12m

$83

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Sat 1/10

5:11 pm-8:24 am

1 stop16h 13m

Denver Intl

Wed 1/14

11:40 am-2:48 pm

Nonstop2h 08m

$110

Kansas CityDenver

MCI - DEN

MCIDEN

Kansas City

Thu 1/8

8:23 pm-9:27 pm

Nonstop2h 04m

Denver Intl

Sun 1/11

4:47 pm-7:26 pm

Nonstop1h 39m

$128

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Sat 2/21

2:51 pm-4:18 pm

Nonstop2h 27m

Denver Intl

Wed 2/25

12:48 pm-3:53 pm

Nonstop2h 05m

$135

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Mon 1/19

7:36 pm-9:08 pm

Nonstop2h 32m

Denver Intl

Mon 1/26

9:05 pm-6:51 am

2 stops32h 46m

$143

Kansas CityDenver

MCI - DEN

MCIDEN

Kansas City

Thu 2/5

9:05 am-10:15 am

Nonstop2h 10m

Denver Intl

Wed 2/11

9:50 am-12:37 pm

Nonstop1h 47m

$166

Kansas CityDenver

MCI - DEN

MCIDEN

Kansas City

Thu 1/22

5:45 am-7:01 am

Nonstop2h 16m

Denver Intl

Mon 1/26

8:37 pm-11:30 pm

Nonstop1h 53m

$177

St. LouisDenver

STL - DEN

STLDEN

Lambert-St Louis

Sat 1/24

1:50 pm-4:50 pm

1 stop4h 00m

Denver Intl

Sat 1/31

7:45 am-10:50 am

Nonstop2h 05m

$183

Kansas CityDenver

MCI - DEN

MCIDEN

Kansas City

Sun 1/25

5:10 pm-6:21 pm

Nonstop2h 11m

Denver Intl

Tue 1/27

1:31 pm-4:08 pm

Nonstop1h 37m

$184

Kansas CityDenver

MCI - DEN

MCIDEN

Kansas City

Thu 3/12

8:40 pm-9:46 pm

Nonstop2h 06m

Denver Intl

Fri 3/13

5:14 pm-7:55 pm

Nonstop1h 41m

$187

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 60 results
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Best time to book a flight from Missouri to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Missouri with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Missouri to Denver

What is the cheapest month to book a flight from Missouri to Denver?

Currently, February is the cheapest month in which you can book a flight from Missouri to Denver (average of $29). Flying from Missouri to Denver in July is currently the most expensive (average of $104). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MO to DEN?

Find hourly flight availability from Missouri to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 23, 2025.

A simple way to save on the total cost of your ticket is to fly from Missouri to Denver in the evening. If you’re flexible enough to do this you can expect to save up to 44% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Missouri to Denver?

Use this chart to determine the cheapest time to fly round-trip from Missouri to Denver. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Missouri to Denver flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Missouri to Denver

Explore weekly flight availability from Missouri to Denver. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 23, 2025.

The most flights from USMO to DEN are scheduled on a Monday (14 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (4 on average).

Related info for your journey

Find useful and relevant information for your journey from Missouri to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Denver from Missouri?

    Denver Intl (DEN), located 18.5 mi from the city center, is the airport you fly into when you book flights from Missouri to Denver.

  • How popular is this Missouri to Denver flight route?

    Flights from Missouri to Denver Intl have been viewed 174 times in the past calendar month.

  • How long is the flight from Missouri to Denver?

    For as low as $166, Frontier can have you in Denver from Missouri in 2h 10m. Airlines will cover a distance of 531 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Missouri to Denver one-way?

    One-way options have recently been found by users for as low as $32 on Frontier. Other airlines that offer cheap prices include Southwest from $78 and United Airlines from $80 one-way.

  • What are the most popular routes from Missouri to Denver?

    The most popular flight routes from Missouri to Denver are Kansas City - Denver Intl, Lambert-St Louis - Denver Intl and Springfield-Branson - Denver Intl.

  • What are the most reliable airlines from Missouri to Denver?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Missouri to Denver on time: SkyWest Airlines (100%), Frontier (91%), Air Canada (79%).

  • What are the cheapest flights from Missouri to Denver?

    Looking at all options, your cheapest flight can be booked for $76. While the most popular route (Kansas City - Denver Intl) can be booked for $116 on average, our data indicates $1,098 when flying from Missouri to Denver.

  • Can I find deals for flights from Missouri to Denver that include hotel bookings?

    Yes. In addition to deals on Missouri to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Missouri to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Missouri to Denver.

  • Can I find deals for business class flights from Missouri to Denver?

    Yes. Cheapflights offers flight deals from Missouri to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Missouri to Denver?

    Currently, February is the cheapest month in which you can book a flight from Missouri to Denver (average of $29). Flying from Missouri to Denver in July is currently the most expensive (average of $104). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Thornton
Black Hawk
Broomfield
Westminster
Winter Park
Golden
Greeley
Lone Tree
Lakewood
Wheat Ridge
Cripple Creek
Silverthorne
Central City
Frisco
Manitou Springs
Fort Morgan
Brighton
Longmont
Idaho Springs
Evergreen

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Missouri to Denver

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Top 5 airlines flying from Missouri to Denver

Discover the top 5 airlines that operate flights from Missouri to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$48Average$130FlexibilityNo cancel feeOn-time62%
DeltaCheapest$128Average$277FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$138Average$310FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$146Average$264FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$157Average$336FlexibilityNo cancel feeOn-time71%

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