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Cheap flights from Rapid City to Las Vegas from $108

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 Las Vegas departing on 10/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Allegiant Air Logo
5:39 pm - 6:59 pmRAP-LAS
2h 20mnonstop
Allegiant Air Logo
1:32 pm - 4:49 pmLAS-RAP
2h 17mnonstop
$122Allegiant Air
Find Deal
Sun, Sep 7 - Thu, Sep 11
Allegiant Air Logo
5:39 pm - 6:59 pmRAP-LAS
2h 20mnonstop
Allegiant Air Logo
1:32 pm - 4:49 pmLAS-RAP
2h 17mnonstop
$129Allegiant Air
Find Deal
Thu, Sep 4 - Thu, Sep 11
United Airlines Logo
5:30 am - 8:45 amRAP-LAS
4h 15m1 stop
United Airlines Logo
6:00 am - 12:37 pmLAS-RAP
5h 37m1 stop
$245United Airlines
Find Deal
Wed, Sep 24 - Sat, Sep 27
Delta Logo
10:40 am - 5:38 pmRAP-LAS
7h 58m1 stop
Delta Logo
12:10 pm - 10:14 pmLAS-RAP
9h 04m1 stop
$249Delta
Find Deal
Sat, Jan 10 - Sat, Jan 17
American Airlines Logo
5:00 pm - 10:22 pmRAP-LAS
6h 22m1 stop
American Airlines Logo
8:30 am - 8:53 pmLAS-RAP
11h 23m2 stops
$250American Airlines
Find Deal
Wed, Sep 10 - Sat, Sep 13
American Airlines Logo
5:39 am - 5:49 pmRAP-LAS
13h 10m2 stops
American Airlines Logo
1:36 am - 11:34 amLAS-RAP
8h 58m1 stop
$254American Airlines
Find Deal
Sat, Jan 10 - Fri, Jan 16
Logo
3:40 pm - 9:17 amRAP-LAS
18h 37m1 stop
Logo
1:32 pm - 4:49 pmLAS-RAP
2h 17mnonstop
$271
Find Deal
Fri, Sep 12 - Sun, Sep 14
United Airlines Logo
7:05 am - 2:07 pmRAP-LAS
8h 02m2 stops
United Airlines Logo
9:49 am - 2:43 pmLAS-RAP
3h 54m1 stop
$273United Airlines
Find Deal
Sat, Jan 10 - Sat, Jan 17
Logo
3:40 pm - 9:19 pmRAP-LAS
30h 39m2 stops
Logo
1:32 pm - 4:49 pmLAS-RAP
2h 17mnonstop
$310
Find Deal
Fri, Sep 12 - Sun, Sep 14
Delta Logo
2:20 pm - 8:32 pmRAP-LAS
7h 12m1 stop
Delta Logo
6:25 am - 4:11 pmLAS-RAP
8h 46m1 stop
$314Delta
Find Deal
Wed, Dec 3 - Sat, Dec 6

Allegiant Air flights from Rapid City to Las Vegas

Our best Allegiant Air deals on Rapid City to Las Vegas flight tickets
Allegiant Air
Sep 7
RAP5:39 pmRapid City
2h 20m
LAS6:59 pmLas Vegas Harry Reid Intl
Sep 11
LAS1:32 pmLas Vegas Harry Reid Intl
2h 17m
RAP4:49 pmRapid City
$122
Find similar
Allegiant Air
Sep 4
RAP5:39 pmRapid City
2h 20m
LAS6:59 pmLas Vegas Harry Reid Intl
Sep 11
LAS1:32 pmLas Vegas Harry Reid Intl
2h 17m
RAP4:49 pmRapid City
$129
Find similar
Allegiant Air
Sep 11
RAP5:39 pmRapid City
2h 20m
LAS6:59 pmLas Vegas Harry Reid Intl
Sep 14
LAS1:32 pmLas Vegas Harry Reid Intl
2h 17m
RAP4:49 pmRapid City
$180
Find similar

United Airlines flights from Rapid City to Las Vegas

Our best United Airlines deals on Rapid City to Las Vegas flight tickets
United Airlines
Sep 24
RAP5:30 amRapid City
4h 15m
1 stop
LAS8:45 amLas Vegas Harry Reid Intl
Sep 27
LAS6:00 amLas Vegas Harry Reid Intl
5h 37m
1 stop
RAP12:37 pmRapid City
$245
Find similar
United Airlines
Jan 10
RAP7:05 amRapid City
8h 02m
2 stops
LAS2:07 pmLas Vegas Harry Reid Intl
Jan 17
LAS9:49 amLas Vegas Harry Reid Intl
3h 54m
1 stop
RAP2:43 pmRapid City
$273
Find similar
United Airlines
Jan 15
RAP5:30 amRapid City
4h 19m
1 stop
LAS8:49 amLas Vegas Harry Reid Intl
Jan 19
LAS9:49 amLas Vegas Harry Reid Intl
3h 54m
1 stop
RAP2:43 pmRapid City
$311
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Rapid City to Las Vegas 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 August 18, 2025.
Use the filters below to find and compare flights from Rapid City to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Sun 9/7

5:39 pm-6:59 pm

Nonstop2h 20m

Las Vegas Harry Reid Intl

Thu 9/11

1:32 pm-4:49 pm

Nonstop2h 17m

$122

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Thu 9/4

5:39 pm-6:59 pm

Nonstop2h 20m

Las Vegas Harry Reid Intl

Thu 9/11

1:32 pm-4:49 pm

Nonstop2h 17m

$129

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Wed 9/24

5:30 am-8:45 am

1 stop4h 15m

Las Vegas Harry Reid Intl

Sat 9/27

6:00 am-12:37 pm

1 stop5h 37m

$245

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Sat 1/10

10:40 am-5:38 pm

1 stop7h 58m

Las Vegas Harry Reid Intl

Sat 1/17

12:10 pm-10:14 pm

1 stop9h 04m

$249

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Wed 9/10

5:00 pm-10:22 pm

1 stop6h 22m

Las Vegas Harry Reid Intl

Sat 9/13

8:30 am-8:53 pm

2 stops11h 23m

$250

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Sat 1/10

5:39 am-5:49 pm

2 stops13h 10m

Las Vegas Harry Reid Intl

Fri 1/16

1:36 am-11:34 am

1 stop8h 58m

$254

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Fri 9/12

3:40 pm-9:17 am

1 stop18h 37m

Las Vegas Harry Reid Intl

Sun 9/14

1:32 pm-4:49 pm

Nonstop2h 17m

$271

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Sat 1/10

7:05 am-2:07 pm

2 stops8h 02m

Las Vegas Harry Reid Intl

Sat 1/17

9:49 am-2:43 pm

1 stop3h 54m

$273

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Fri 9/12

3:40 pm-9:19 pm

2 stops30h 39m

Las Vegas Harry Reid Intl

Sun 9/14

1:32 pm-4:49 pm

Nonstop2h 17m

$310

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Wed 12/3

2:20 pm-8:32 pm

1 stop7h 12m

Las Vegas Harry Reid Intl

Sat 12/6

6:25 am-4:11 pm

1 stop8h 46m

$314

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 Las Vegas from

How to get the cheapest flight ticket from Rapid City to Las Vegas

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 typical price of a round-trip flight between Rapid City and Las Vegas?

What is the cheapest month to fly to Las Vegas?

The month of August is, on average, the cheapest month to fly to Las Vegas from Rapid City, with most prices found around $150. The month of October is another great option to travel to Las Vegas, with average flight prices from Rapid City averaging around $172.

What is the cheapest day to depart on your flight to Las Vegas?

Our data shows that Monday is the least expensive day to fly to Las Vegas. Tickets to fly out on this day can be as low as $146. Flights from Rapid City to Las Vegas on a Wednesday will generally be more expensive and average around $387. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

The cheapest time of day to fly to Las Vegas is in the evening when flights can be purchased for as low as $157. Flights to Las Vegas are more costly in the afternoon, with an average ticket price of $230. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Rapid City to Las Vegas Harry Reid Intl flight route?

Fly from Rapid City to Las Vegas Harry Reid Intl for the best Rapid City - Las Vegas Harry Reid Intl flight prices

How far in advance should I book a flight to Las Vegas?

You are more likely to see cheaper flights to Las Vegas from Rapid City when booking weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around $251 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Las Vegas from Rapid City for as low as $184 on momondo.

What cabin class options are available on Rapid City to Las Vegas Harry Reid Intl flights?

There are 1 cabin classes available to choose from on Rapid City to Las Vegas Harry Reid Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Rapid City to Las Vegas flights?

No. A direct flight is the cheapest option for a flight between Rapid City to Las Vegas.

How have Rapid City to Las Vegas flight prices changed over time?

As of August 2025, prices for Rapid City to Las Vegas flights are approximately 12% cheaper when compared to flights at the same time last year.

When to book flights from Rapid City to Las Vegas

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

Cheap Rapid City to Las Vegas (RAP to LAS) flight deals and tips

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

Best Price Found

$108

Fastest flight time

2h 20m

Direct flights

Mon, Thu and Fri

Airports in Las Vegas

1 airport
The best one-way flight to Las Vegas from Rapid City in the past 72 hours is $108. The best round-trip flight deal from Rapid City to Las Vegas found on momondo in the last 72 hours is $122.
The fastest flight from Rapid City to Las Vegas takes 2h 20m
Direct flights go from Rapid City to Las Vegas on Monday, Thursday and Friday. The only airline offering direct flights is Allegiant Air.
There is 1 airport near Las Vegas: Las Vegas Harry Reid Intl (LAS)
Search flight deals

  • How far is Rapid City to Las Vegas Harry Reid Intl by plane?

    Rapid City and Las Vegas Harry Reid Intl are 830.9 mi apart from one another. In terms of flight time, this usually takes a little over 2h 20m.

  • When did momondo last update prices for flights from Rapid City Airport to Las Vegas Harry Reid Intl Airport?

    Prices for flights from Rapid City Airport to Las Vegas Harry Reid Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Rapid City Airport to Las Vegas Harry Reid Intl Airport?

  • How old do you have to be to fly from Rapid City Airport to Las Vegas Harry Reid 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 Las Vegas Harry Reid Intl Airport.

  • What documentation or ID do you need to fly to Las Vegas Harry Reid Intl Airport?

    The required travel and health documents for your Las Vegas Harry Reid Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Las Vegas Harry Reid Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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

Best airlines flying from Rapid City to Las Vegas

Compare and see reviews for airlines that fly from Rapid City to Las Vegas with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $112Free CancellationRating
7.2
701 reviews
Search Allegiant Air flights
DeltaPriceFrom $175Free CancellationRating
8.0
7,981 reviews
Search Delta flights
American AirlinesPriceFrom $244Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $248Free CancellationRating
7.4
8,925 reviews
Search United Airlines flights

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Laughlin
Mount Charleston
Henderson
Mesquite
North Las Vegas
Paradise
Kingman
Pahrump
Primm
Furnace Creek
Boulder City
Winchester
Sunrise Manor
Needles

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Rapid City to Las Vegas. momondo saves you time and could save you money on your trip.

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

All flight searches from Rapid City to Las Vegas on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for Rapid City to Las Vegas flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Las Vegas 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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