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Cheap flights from Rapid City to Denver from $139

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Rapid City to Denver departing on 3/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:41 pm - 7:24 pm
RAP
-
DEN
1h 43mnonstop
United Airlines Logo
7:20 pm - 8:34 pm
DEN
-
RAP
1h 14mnonstop
$189United Airlines
Tue, Mar 10 - Tue, Mar 17
United Airlines Logo
2:45 pm - 4:21 pm
RAP
-
DEN
1h 36mnonstop
United Airlines Logo
7:20 pm - 8:34 pm
DEN
-
RAP
1h 14mnonstop
$199United Airlines
Thu, Mar 12 - Sun, Mar 15
United Airlines Logo
7:00 am - 8:35 am
RAP
-
DEN
1h 35mnonstop
United Airlines Logo
8:35 pm - 9:57 pm
DEN
-
RAP
1h 22mnonstop
$203United Airlines
Fri, Mar 6 - Sun, Mar 8
United Airlines Logo
2:52 pm - 4:28 pm
RAP
-
DEN
1h 36mnonstop
United Airlines Logo
2:35 pm - 3:57 pm
DEN
-
RAP
1h 22mnonstop
$204United Airlines
Thu, Feb 26 - Thu, Mar 5
United Airlines Logo
10:55 am - 12:35 pm
RAP
-
DEN
1h 40mnonstop
United Airlines Logo
2:35 pm - 3:57 pm
DEN
-
RAP
1h 22mnonstop
$219United Airlines
Thu, Mar 12 - Sat, Mar 14
United Airlines Logo
10:00 am - 11:40 am
RAP
-
DEN
1h 40mnonstop
United Airlines Logo
8:35 pm - 9:57 pm
DEN
-
RAP
1h 22mnonstop
$231United Airlines
Fri, Mar 27 - Sun, Mar 29
United Airlines Logo
8:30 am - 10:10 am
RAP
-
DEN
1h 40mnonstop
United Airlines Logo
8:55 pm - 10:16 pm
DEN
-
RAP
1h 21mnonstop
$249United Airlines
Thu, Feb 26 - Sun, Mar 1
United Airlines Logo
8:30 am - 10:10 am
RAP
-
DEN
1h 40mnonstop
United Airlines Logo
7:30 pm - 8:44 pm
DEN
-
RAP
1h 14mnonstop
$259United Airlines
Sat, Apr 4 - Sun, Apr 5
United Airlines Logo
5:40 pm - 7:23 pm
RAP
-
DEN
1h 43mnonstop
United Airlines Logo
7:20 pm - 8:34 pm
DEN
-
RAP
1h 14mnonstop
$264United Airlines
Wed, Mar 4 - Wed, Mar 18
Multiple Airlines Logo
11:32 am - 9:43 am
RAP
-
DEN
22h 11m
1 stop
Multiple Airlines Logo
10:29 pm - 5:07 pm
DEN
-
RAP
18h 38m
1 stop
$266Multiple Airlines
Mon, Apr 13 - Wed, Apr 22

United Airlines flights from Rapid City to Denver

Our best United Airlines deals on Rapid City to Denver flight tickets
United Airlines
Mar 10
RAP5:41 pmRapid City
1h 43m
DEN7:24 pmDenver Intl
Mar 17
DEN7:20 pmDenver Intl
1h 14m
RAP8:34 pmRapid City
$189
United Airlines
Mar 12
RAP2:45 pmRapid City
1h 36m
DEN4:21 pmDenver Intl
Mar 15
DEN7:20 pmDenver Intl
1h 14m
RAP8:34 pmRapid City
$199
United Airlines
Mar 6
RAP7:00 amRapid City
1h 35m
DEN8:35 amDenver Intl
Mar 8
DEN8:35 pmDenver Intl
1h 22m
RAP9:57 pmRapid City
$203

American Airlines flights from Rapid City to Denver

Our best American Airlines deals on Rapid City to Denver flight tickets
American Airlines
Feb 28
RAP5:31 amRapid City
15h 19m
2 stops
DEN8:50 pmDenver Intl
Mar 4
DEN7:00 amDenver Intl
15h 51m
2 stops
RAP10:51 pmRapid City
$539
American Airlines
Feb 24
RAP2:21 pmRapid City
18h 26m
2 stops
DEN8:47 amDenver Intl
Mar 4
DEN7:00 amDenver Intl
15h 51m
2 stops
RAP10:51 pmRapid City
$599
American Airlines
Feb 28
RAP5:31 amRapid City
15h 19m
2 stops
DEN8:50 pmDenver Intl
Mar 1
DEN7:00 amDenver Intl
15h 36m
2 stops
RAP10:36 pmRapid City
$705

momondo 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, momondo users made 832,500 searches. Data last updated February 16, 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

Rapid CityDenver

RAP - DEN

RAPDEN

Rapid City

Tue 3/10

5:41 pm-7:24 pm

Nonstop1h 43m

Denver Intl

Tue 3/17

7:20 pm-8:34 pm

Nonstop1h 14m

$189

Rapid CityDenver

RAP - DEN

RAPDEN

Rapid City

Thu 3/12

2:45 pm-4:21 pm

Nonstop1h 36m

Denver Intl

Sun 3/15

7:20 pm-8:34 pm

Nonstop1h 14m

$199

Rapid CityDenver

RAP - DEN

RAPDEN

Rapid City

Fri 3/6

7:00 am-8:35 am

Nonstop1h 35m

Denver Intl

Sun 3/8

8:35 pm-9:57 pm

Nonstop1h 22m

$203

Rapid CityDenver

RAP - DEN

RAPDEN

Rapid City

Thu 2/26

2:52 pm-4:28 pm

Nonstop1h 36m

Denver Intl

Thu 3/5

2:35 pm-3:57 pm

Nonstop1h 22m

$204

Rapid CityDenver

RAP - DEN

RAPDEN

Rapid City

Thu 3/12

10:55 am-12:35 pm

Nonstop1h 40m

Denver Intl

Sat 3/14

2:35 pm-3:57 pm

Nonstop1h 22m

$219

Rapid CityDenver

RAP - DEN

RAPDEN

Rapid City

Fri 3/27

10:00 am-11:40 am

Nonstop1h 40m

Denver Intl

Sun 3/29

8:35 pm-9:57 pm

Nonstop1h 22m

$231

Rapid CityDenver

RAP - DEN

RAPDEN

Rapid City

Thu 2/26

8:30 am-10:10 am

Nonstop1h 40m

Denver Intl

Sun 3/1

8:55 pm-10:16 pm

Nonstop1h 21m

$249

Rapid CityDenver

RAP - DEN

RAPDEN

Rapid City

Sat 4/4

8:30 am-10:10 am

Nonstop1h 40m

Denver Intl

Sun 4/5

7:30 pm-8:44 pm

Nonstop1h 14m

$259

Rapid CityDenver

RAP - DEN

RAPDEN

Rapid City

Wed 3/4

5:40 pm-7:23 pm

Nonstop1h 43m

Denver Intl

Wed 3/18

7:20 pm-8:34 pm

Nonstop1h 14m

$264

Rapid CityDenver

RAP - DEN

RAPDEN

Rapid City

Mon 4/13

11:32 am-9:43 am

1 stop22h 11m

Denver Intl

Wed 4/22

10:29 pm-5:07 pm

1 stop18h 38m

$266

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Denver from

How to get the cheapest flight ticket from Rapid City to Denver

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from Rapid City is in February. Flight prices, which tend to average around $228, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in February, then you should wait until November to fly from Rapid City, when ticket prices are also cheap, with an average price of $234.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Wednesday when prices can be found for as low as $425. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $559.

What is the cheapest time of day to depart on your flight to Denver?

The cheapest time of day to fly to Denver is at noon when flights can be purchased for as low as $401. Flights in the morning are often more expensive with an average ticket price of $457.

What is the cheapest Rapid City to Denver Intl flight route?

Fly from Rapid City to Denver Intl for the best Rapid City - Denver Intl flight prices

What cabin class options are available on Rapid City to Denver Intl flights?

There are 4 cabin classes available to choose from on Rapid City to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Rapid City to Denver flight prices changed over time?

As of February 2026, prices for Rapid City to Denver flights are approximately 101% more expensive when compared to flights at the same time last year.

When to book flights from Rapid City to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Rapid City to Denver according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Rapid City to Denver (RAP to DEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Rapid City to Denver

Best Price Found

$269

Fastest flight time

1h 21m

Direct flights

Mon, Wed, Thu, Fri, Sat and Sun

Airports in Denver

1 airport
The best one-way flight to Denver from Rapid City in the past 72 hours is $269. The best round-trip flight deal from Rapid City to Denver found on momondo in the last 72 hours is $341.
The fastest flight from Rapid City to Denver takes 1h 21m
Direct flights go from Rapid City to Denver on Monday, Wednesday, Thursday, Friday, Saturday and Sunday. The only airline offering direct flights is United Airlines.
There is 1 airport in Denver. From Rapid City there are direct flights to Denver Intl (DEN).
Search flight deals

  • How far is Rapid City to Denver Intl by plane?

    A flight from Rapid City to Denver Intl will travel around 313.0 mi. By plane, this route typically takes 1h 21m.

  • When did momondo last update prices for flights from Rapid City Airport to Denver Intl Airport?

    Prices for flights from Rapid City Airport to Denver Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Rapid City Airport to Denver Intl Airport?

  • How old do you have to be to fly from Rapid City Airport to Denver Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Rapid City Airport to Denver Intl Airport.

  • What documentation or ID do you need to fly to Denver Intl Airport?

    The necessary travel and health documents for your Denver Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Rapid City to Denver?

  • What is the most popular airline from Rapid City to Denver?

Best airlines flying from Rapid City to Denver

Compare and see reviews for airlines that fly from Rapid City to Denver with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $189Free CancellationRating
7.4
9,299 reviews
Search United Airlines flights

  • United Airlines Flights From Rapid City to Denver

    The lowest priced United Airlines flight from Rapid City to Denver from the last 72 hours was $189. Generally, United Airlines has 49 flights on this route every week with an average price of $276. United Airlines is rated 7.4/10 by our users.

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Breckenridge
Estes Park
Black Hawk
Aurora
Fort Collins
Manitou Springs
Boulder
Cripple Creek
Longmont
Keystone
Greeley
Lakewood
Westminster
Thornton
Frisco
Copper Mountain
Winter Park
Centennial
Grand Lake
Englewood

Why use momondo?

Why should I use momondo to find a flight deal from Rapid City to Denver?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Rapid City to Denver for you.

Can I find flights from Rapid City to Denver with flexible booking policies on momondo?

Flights from Rapid City to Denver with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Rapid City to Denver?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Denver from Rapid City.

I’m not ready to book a flight from Rapid City to Denver right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Denver from Rapid City. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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