$84 Cheap Frontier Airlines flights Kansas City (MCI) to Denver (DEN)

View $84 flight on Sun, Sep 14, 2025Opens in a new window

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$84 Cheap Frontier Airlines flights Kansas City (MCI) to Denver (DEN)

Prices were available within the past 7 days and start at $84 for one-way flights and $149 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Wed, Jul 23 - Wed, Jul 30
MCI
Kansas City
DEN
Denver
$149 Roundtrip, found 1 hour ago
$149
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Wed, Jul 23 from Kansas City to Denver, returning Wed, Jul 30, priced at $149 found 1 hour ago
Frontier Airlines
Wed, Aug 6 - Fri, Aug 22
MCI
Kansas City
DEN
Denver
$158 Roundtrip, found 2 days ago
$158
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Wed, Aug 6 from Kansas City to Denver, returning Fri, Aug 22, priced at $158 found 2 days ago
Frontier Airlines
Wed, Jul 16 - Wed, Jul 30
MCI
Kansas City
DEN
Denver
$168 Roundtrip, found 6 hours ago
$168
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Wed, Jul 16 from Kansas City to Denver, returning Wed, Jul 30, priced at $168 found 6 hours ago
Frontier Airlines
Thu, Sep 4 - Mon, Sep 8
MCI
Kansas City
DEN
Denver
$172 Roundtrip, just found
$172
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Sep 4 from Kansas City to Denver, returning Mon, Sep 8, priced at $172 just found
Frontier Airlines
Fri, Sep 26 - Thu, Oct 16
MCI
Kansas City
DEN
Denver
$178 Roundtrip, just found
$178
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Sep 26 from Kansas City to Denver, returning Thu, Oct 16, priced at $178 just found
Frontier Airlines
Wed, Jul 30 - Sat, Aug 2
MCI
Kansas City
DEN
Denver
$182 Roundtrip, found 2 hours ago
$182
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Wed, Jul 30 from Kansas City to Denver, returning Sat, Aug 2, priced at $182 found 2 hours ago
Frontier Airlines
Fri, Aug 8 - Sun, Aug 17
MCI
Kansas City
DEN
Denver
$184 Roundtrip, found 2 hours ago
$184
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Fri, Aug 8 from Kansas City to Denver, returning Sun, Aug 17, priced at $184 found 2 hours ago
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Flights from Kansas City (MCI) to Denver (DEN)
Origin airport
Kansas City Intl.
Destination airport
Denver Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, Sun Country Airlines, United
Popular airline
American Airlines
Distance
531 mi

Frequently asked questions

How much is a Frontier Airlines flight from Kansas City Intl. Airport (MCI) to Denver Intl. Airport (DEN)?
Grab affordable round-trip Frontier Airlines flights from $149 from MCI to DEN by filtering your results from "Price (lowest to highest)" on Expedia. Or look for deals from $84 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from MCI to DEN with Frontier Airlines?
January is one of the most affordable months to fly to Denver with Frontier Airlines. You could also find great deals on return and one-way tickets in November.
What is the cheapest time to book flights from Kansas City Intl. Airport (MCI) to Denver Intl. Airport (DEN) with Frontier Airlines?
For cheap Frontier Airlines fares from Kansas City Intl. Airport (MCI) to Denver Intl. Airport (DEN), start searching one to three months before your planned departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also affect the cost. Sunday is usually the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your journey on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Frontier Airlines fly nonstop from Kansas City Intl. Airport (MCI) to Denver Intl. Airport (DEN)?
Easily travel from Kansas City Intl. Airport (MCI) to Denver Intl. Airport (DEN) on any of Frontier Airlines's 2 direct weekly flights. Make use of our "Nonstop" and "Airline" filters to find the Frontier Airlines flight that'll get you to DEN at your preferred time.
How long does it take to fly from MCI to DEN with Frontier Airlines?
From takeoff till landing, a nonstop Frontier Airlines flight from Kansas City Intl. Airport (MCI) to Denver Intl. Airport (DEN) takes around 2h 6m.
What is the earliest Frontier Airlines flight from MCI to DEN?
The earliest Frontier Airlines flight from MCI to DEN takes off at 6:39PM UTC-6, landing at 7:45PM UTC-7. If you'd like to head off later, the last Frontier Airlines flight leaves MCI at 6:39PM UTC-6 and lands at DEN at 7:45PM UTC-7. Flying earlier is often a good option as morning flights are least likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Frontier Airlines fly into in Denver?
Denver Intl. Airport (DEN) is the main Denver gateway for Frontier Airlines flights from Kansas City Intl. Airport (MCI).
Why fly with Frontier Airlines from MCI to DEN?
Offering a rewarding loyalty program, Frontier Airlines is a popular choice for many passengers journeying from MCI to DEN. Plus, as a Frontier Miles and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights on top of your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does Frontier Airlines fly from Kansas City Intl. Airport (MCI) to Denver Intl. Airport (DEN)?
Frontier Airlines usually operates Airbus A320neo planes for flights from Kansas City Intl. Airport (MCI) to Denver Intl. Airport (DEN). Remember that aircraft type can change depending on operational demands, so the plane you'll be on might be different on your travel date.
Can I change or cancel my Frontier Airlines flight from Kansas City Intl. Airport (MCI) to Denver Intl. Airport (DEN)?
In most cases, you can cancel or reschedule your flight, although additional charges may apply if your booking was made more than 24 hours ago. Prefer to keep your options open? Use Expedia's "Changes included" and "No cancel fee" filters to find flights that won't charge you extra if you need to revise your plans. To make changes, head to "Trips," select your flight and click on "Manage Booking" for more details.

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*Available to One Key members.