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$128+ 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — DEN
Sep 6 — Sep 131
Sun 9/6
Sun 9/13
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 August 7, 2026.

This Kiwi.com deal was found by Cheapflights users on 8/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/812:06 pm -
1 stop15h 46m
Wed 11/1110:30 pm -
1 stop15h 36m
Deal found 8/5$221
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 8/233:30 pm -
1 stop17h 35m
Wed 9/910:50 pm -
1 stop12h 56m
Deal found 8/3$229
This United Airlines deal was found by Cheapflights users on 8/7. 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.
Mon 9/147:00 am -
Nonstop1h 25m
Mon 9/214:30 pm -
Nonstop1h 22m
Deal found 8/7$259
This United Airlines deal was found by Cheapflights users on 8/2. 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 11/257:00 am -
Nonstop1h 26m
Sun 11/298:05 am -
Nonstop1h 28m
Deal found 8/2$268
This United Airlines deal was found by Cheapflights users on 8/4. 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 8/2010:26 am -
Nonstop1h 34m
Sun 8/233:43 pm -
Nonstop1h 23m
Deal found 8/4$289
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/59:49 pm -
1 stop11h 54m
Wed 10/710:30 pm -
1 stop15h 15m
Deal found 8/6$290
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/219:09 pm -
1 stop15h 02m
Fri 10/27:00 am -
1 stop14h 16m
Deal found 8/6$301
This United Airlines deal was found by Cheapflights users on 8/3. 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 9/165:48 pm -
Nonstop1h 42m
Wed 9/237:20 pm -
Nonstop1h 18m
Deal found 8/3$304
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/219:09 pm -
1 stop12h 34m
Tue 9/226:45 pm -
1 stop17h 30m
Deal found 8/6$306
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/219:09 pm -
1 stop26h 39m
Wed 9/3010:50 pm -
1 stop14h 55m
Deal found 8/6$308

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 August 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$221
(Kiwi.com)

One-way from

$128
(Kiwi.com)

Popular in

April

Cheapest in

November

Average price

$364

Good round-trip deal

$406 or less

Good one-way deal

$326 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. 10% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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 August 7, 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 Rapid City - DEN Denver Intl

RAPDEN

Rapid City

Fri 8/21

11:22 am-12:45 pm

Nonstop1h 23m

Denver Intl

Sun 8/23

3:43 pm-5:06 pm

Nonstop1h 23m

$289

Rapid CityDenver

RAP Rapid City - DEN Denver Intl

RAPDEN

Rapid City

Wed 8/12

5:58 pm-7:40 pm

Nonstop1h 42m

Denver Intl

Wed 8/19

4:30 pm-5:53 pm

Nonstop1h 23m

$319
Quickest round-trip

Rapid CityDenver

RAP Rapid City - DEN Denver Intl

RAPDEN

Rapid City

Mon 8/17

11:22 am-12:45 pm

Nonstop1h 23m

Denver Intl

Sun 8/23

11:15 am-12:24 pm

Nonstop1h 09m

$319

Rapid CityDenver

RAP Rapid City - DEN Denver Intl

RAPDEN

Rapid City

Fri 10/23

10:26 am-12:00 pm

Nonstop1h 34m

Denver Intl

Sun 10/25

8:05 am-9:33 am

Nonstop1h 28m

$329

Rapid CityDenver

RAP Rapid City - DEN Denver Intl

RAPDEN

Rapid City

Fri 9/4

11:22 am-12:45 pm

Nonstop1h 23m

Denver Intl

Mon 9/7

7:19 pm-8:37 pm

Nonstop1h 18m

$329

Rapid CityDenver

RAP Rapid City - DEN Denver Intl

RAPDEN

Rapid City

Fri 8/28

5:58 pm-7:40 pm

Nonstop1h 42m

Denver Intl

Sun 8/30

10:30 am-11:55 am

Nonstop1h 25m

$329

Rapid CityDenver

RAP Rapid City - DEN Denver Intl

RAPDEN

Rapid City

Sat 8/22

5:00 am-6:38 am

Nonstop1h 38m

Denver Intl

Wed 8/26

7:19 pm-8:37 pm

Nonstop1h 18m

$359

Rapid CityDenver

RAP Rapid City - DEN Denver Intl

RAPDEN

Rapid City

Sun 9/6

8:55 am-10:33 am

Nonstop1h 38m

Denver Intl

Mon 9/7

7:19 pm-8:37 pm

Nonstop1h 18m

$417
Cheapest one-way

Rapid CityDenver

RAP Rapid City - DEN Denver Intl

RAPDEN

Rapid City

Mon 9/7

10:26 am-12:00 pm

Nonstop1h 34m

$174

Rapid CityDenver

RAP Rapid City - DEN Denver Intl

RAPDEN

Rapid City

Thu 8/20

3:27 pm-5:07 pm

Nonstop1h 40m

$214

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/5

Showing 1-10 of 16 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 August.
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, November is the cheapest month in which you can book a flight from Rapid City to Denver (average of $219). Flying from Rapid City to Denver in April is currently the most expensive (average of $434). 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 August 7, 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 19% on your trip compared to booking a flight in the morning.

How much does it cost to fly round-trip from Rapid City to Denver?

Airfare is below average for this route at the moment.

Rapid City to Denver flights typically cost between $309 and $454 in November.
The cheapest round-trip price found within the last 5 days was $221 on Multiple Airlines (Nov 8-Nov 11).

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 August 7, 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
10,081 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
United Airlines
7.4
Good
10,081 reviews
United Airlines
7.4
Good
10,081 reviews

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible

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 7 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 88 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 23m. United Airlines provides one of the quickest options available for as low as $289. 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 43% 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 (81%), SkyWest Airlines (75%), Copa Airlines (60%).

  • 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 $453, our data indicates the cheapest price to be $243. The most popular route (Rapid City - Denver Intl), is priced around $259.

  • 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, November is the cheapest month in which you can book a flight from Rapid City to Denver (average of $219). Flying from Rapid City to Denver in April is currently the most expensive (average of $434). 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
Westminster
Black Hawk
Centennial
Lakewood
Broomfield
Golden
Lone Tree
Wheat Ridge
Silverthorne
Central City
Fort Morgan
Cripple Creek
Greeley
Winter Park
Limon
Manitou Springs
Frisco
Englewood
Glendale

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
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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 August 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$189Average$320FlexibilityNo cancel feeOn-time69%

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