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$131+ Cheap flights from Rapid City to Denver (RAP - 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — DEN
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
1 adult, Economy
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Cheap flight deals from Rapid City to Denver

Cheapest flights from Rapid City to Denver
Explore the most affordable flight options available from Rapid City to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 10, 2026.

This United Airlines deal was found by Cheapflights users on 3/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/112:00 pm
RAP
-
DEN
Nonstop1h 32m
United Airlines
Sat 4/411:55 am
DEN
-
RAP
Nonstop1h 13m
United Airlines
Deal found 3/5$209
This United Airlines deal was found by Cheapflights users on 3/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/265:00 am
RAP
-
DEN
Nonstop1h 23m
United Airlines
Sat 5/307:10 pm
DEN
-
RAP
Nonstop1h 14m
United Airlines
Deal found 3/8$218
This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/62:47 pm
RAP
-
DEN
Nonstop1h 33m
United Airlines
Mon 4/138:00 am
DEN
-
RAP
Nonstop1h 23m
United Airlines
Deal found 3/9$229
This United Airlines deal was found by Cheapflights users on 3/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/218:30 am
RAP
-
DEN
Nonstop1h 38m
United Airlines
Tue 3/248:35 pm
DEN
-
RAP
Nonstop1h 22m
United Airlines
Deal found 3/7$239
This United Airlines deal was found by Cheapflights users on 3/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/245:00 am
RAP
-
DEN
Nonstop1h 23m
United Airlines
Sat 6/275:55 pm
DEN
-
RAP
Nonstop1h 29m
United Airlines
Deal found 3/5$266
This United Airlines deal was found by Cheapflights users on 3/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2811:20 am
RAP
-
DEN
Nonstop1h 28m
United Airlines
Sun 5/315:55 pm
DEN
-
RAP
Nonstop1h 18m
United Airlines
Deal found 3/6$269
This United Airlines deal was found by Cheapflights users on 3/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/285:41 pm
RAP
-
DEN
Nonstop1h 41m
United Airlines
Sun 3/292:15 pm
DEN
-
RAP
Nonstop1h 25m
United Airlines
Deal found 3/6$270
This United Airlines deal was found by Cheapflights users on 3/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2412:00 pm
RAP
-
DEN
Nonstop1h 43m
United Airlines
Sat 3/287:20 pm
DEN
-
RAP
Nonstop1h 14m
United Airlines
Deal found 3/7$284
This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/411:20 am
RAP
-
DEN
Nonstop1h 28m
United Airlines
Mon 6/85:55 pm
DEN
-
RAP
Nonstop1h 18m
United Airlines
Deal found 3/9$289
This United Airlines deal was found by Cheapflights users on 3/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/132:45 pm
RAP
-
DEN
Nonstop1h 36m
United Airlines
Sun 3/158:35 pm
DEN
-
RAP
Nonstop1h 22m
United Airlines
Deal found 3/6$299
This United Airlines deal was found by Cheapflights users on 3/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:00 am
RAP
-
DEN
Nonstop1h 38m
United Airlines
Wed 9/911:15 am
DEN
-
RAP
Nonstop1h 09m
United Airlines
Deal found 3/9$304
This United Airlines deal was found by Cheapflights users on 3/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:00 am
RAP
-
DEN
1 stop26h 52m
United Airlines
Sat 8/2211:15 am
DEN
-
RAP
Nonstop1h 09m
United Airlines
Deal found 3/5$309

Find flight deals from Rapid City to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Rapid City (RAP) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$209
(United Airlines)

One-way from

$131
(Kiwi.com)

Popular in

March

Cheapest in

February

Average price

$391

Good round-trip deal

$370 or less

Good one-way deal

$240 or less
Provider with most accurate pricing for Rapid City-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Rapid City-Denver Intl flights.
Search Deals
From Rapid City to Denver Intl
Search Deals
One-way flight from Rapid City to Denver Intl
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($4 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Rapid City to Denver Intl.
Search Deals
Price to beat on a one-way flight from Rapid City to Denver Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Rapid City 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 March 10, 2026.
Use the filters below to find and compare flights from Rapid City to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Rapid CityDenver

RAP - DEN

RAPDEN

Rapid City

Fri 4/17

8:30 am-10:10 am

Nonstop1h 40m

Denver Intl

Thu 4/23

3:35 pm-5:00 pm

Nonstop1h 25m

$209
Quickest round-trip

Rapid CityDenver

RAP - DEN

RAPDEN

Rapid City

Tue 5/26

5:00 am-6:23 am

Nonstop1h 23m

Denver Intl

Sat 5/30

7:10 pm-8:24 pm

Nonstop1h 14m

$218

Rapid CityDenver

RAP - DEN

RAPDEN

Rapid City

Sat 3/21

8:30 am-10:08 am

Nonstop1h 38m

Denver Intl

Tue 3/24

8:35 pm-9:57 pm

Nonstop1h 22m

$239

Rapid CityDenver

RAP - DEN

RAPDEN

Rapid City

Wed 3/25

5:41 pm-7:24 pm

Nonstop1h 43m

Denver Intl

Sun 3/29

4:35 pm-6:00 pm

Nonstop1h 25m

$239

Rapid CityDenver

RAP - DEN

RAPDEN

Rapid City

Fri 8/21

11:08 am-12:33 pm

Nonstop1h 25m

Denver Intl

Sat 8/22

3:45 pm-5:08 pm

Nonstop1h 23m

$269

Rapid CityDenver

RAP - DEN

RAPDEN

Rapid City

Fri 6/12

5:00 am-6:23 am

Nonstop1h 23m

Denver Intl

Mon 6/22

5:55 pm-7:13 pm

Nonstop1h 18m

$269

Rapid CityDenver

RAP - DEN

RAPDEN

Rapid City

Sat 3/28

5:41 pm-7:22 pm

Nonstop1h 41m

Denver Intl

Sun 3/29

2:15 pm-3:40 pm

Nonstop1h 25m

$270

Rapid CityDenver

RAP - DEN

RAPDEN

Rapid City

Tue 3/24

12:00 pm-1:43 pm

Nonstop1h 43m

Denver Intl

Sat 3/28

7:20 pm-8:34 pm

Nonstop1h 14m

$284
Cheapest one-way

Rapid CityDenver

RAP - DEN

RAPDEN

Rapid City

Mon 5/11

7:00 am-8:29 am

Nonstop1h 29m

$149

Rapid CityDenver

RAP - DEN

RAPDEN

Rapid City

Sat 6/6

12:34 pm-3:15 pm

2 stops26h 41m

$218

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/8

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Compare providers for flights from Rapid City to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Rapid City to Denver in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Rapid City-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Rapid City-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Rapid City-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Rapid City-Denver flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Rapid City-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Rapid City to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Rapid City 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 Rapid City to Denver

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

Currently, February is the cheapest month in which you can book a flight from Rapid City to Denver (average of $189). Flying from Rapid City to Denver in August is currently the most expensive (average of $249). 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 RAP to DEN?

Find hourly flight availability from Rapid City 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 March 10, 2026.

A simple way to save on the total cost of your ticket is to fly from Rapid City to Denver at noon. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight in the morning.

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated March 10, 2026.
Read through reviews of airlines operating flights from Rapid City to Denver, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,409 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,409 reviews
United Airlines
7.4
Good
9,409 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Related info for your journey

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

  • What airports do I use to fly from Rapid City to Denver?

    If you book a flight from Rapid City to Denver, you will be flying from Rapid City to Denver Intl. Flights to Denver Intl (DEN) from Rapid City (RAP) take 1h 23m for a nonstop flight. There are 8 flights from Rapid City to Denver per day from 1 airline.

  • How popular is this Rapid City to Denver flight route?

    Flights from Rapid City to Denver Intl have been viewed 46 times in the past calendar month.

  • How long is the flight from Rapid City to Denver?

    A quick flight from Rapid City to Denver can take about 1h 40m. United Airlines provides one of the quickest options available for as low as $209. The distance from Rapid City to Denver is about 300 mi. All flights are typically nonstop.

  • What is the cheapest airline to fly from Rapid City to Denver round-trip?

    United Airlines, at $189, was found to be the cheapest airline from Rapid City to Denver.. United Airlines is currently priced 36% below the average price you’ll pay for this route.

  • What are the most reliable airlines from Rapid City 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 Rapid City to Denver on time: United Airlines (86%), SkyWest Airlines (83%), Copa Airlines (77%).

  • What are the cheapest flights from Rapid City to Denver?

    Looking for the cheapest flight from Rapid City to Denver? While on average our users pay $378, our data indicates the cheapest price to be $190. The most popular route (Rapid City - Denver Intl), is priced around $209.

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

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

  • How can I find direct flights from Rapid City to Denver?

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

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

    Yes. Cheapflights offers flight deals from Rapid City 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 Rapid City to Denver?

    Currently, February is the cheapest month in which you can book a flight from Rapid City to Denver (average of $189). Flying from Rapid City to Denver in August is currently the most expensive (average of $249). 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
Lakewood
Broomfield
Westminster
Golden
Centennial
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Central City
Cripple Creek
Winter Park
Glendale
Manitou Springs
Frisco
Fort Morgan
Brighton
Evergreen

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Rapid City to Denver

See prices for flight routes from nearby airports that may be better suited for you.
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Watertown to Denver flights
Pierre to Denver flights
Aberdeen to Denver flights
Sioux Falls to Colorado Springs flights

Top airline flying from Rapid City to Denver

Discover the top airline that operate flights from Rapid City 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 March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$189Average$270FlexibilityNo cancel feeOn-time69%

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