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Cheap flights from Rapid City to Las Vegas from $57

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 3/15. 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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0 bags

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Find the cheapest flights from Rapid City to Las Vegas

Cheap round-trip flights

Enter your travel dates to find the best prices.
Allegiant Air Logo
10:10 pm - 11:33 pm
RAP
-
LAS
2h 23mnonstop
Allegiant Air Logo
1:40 pm - 4:52 pm
LAS
-
RAP
2h 12mnonstop
$110Allegiant Air
Sun, Feb 8 - Thu, Feb 12
Allegiant Air Logo
10:10 pm - 11:33 pm
RAP
-
LAS
2h 23mnonstop
Allegiant Air Logo
6:02 pm - 9:20 pm
LAS
-
RAP
2h 18mnonstop
$131Allegiant Air
Thu, Jan 29 - Sun, Feb 1
Multiple Airlines Logo
10:10 pm - 11:33 pm
RAP
-
LAS
2h 23mnonstop
Multiple Airlines Logo
6:00 am - 6:03 pm
LAS
-
RAP
11h 03m1 stop
$167Multiple Airlines
Sun, Feb 1 - Fri, Feb 6
Multiple Airlines Logo
5:42 pm - 7:13 pm
RAP
-
LAS
2h 31mnonstop
Multiple Airlines Logo
6:30 am - 10:55 am
LAS
-
RAP
27h 25m1 stop
$196Multiple Airlines
Thu, Feb 26 - Sun, Mar 1
Allegiant Air Logo
10:10 pm - 11:33 pm
RAP
-
LAS
2h 23mnonstop
Allegiant Air Logo
1:40 pm - 4:52 pm
LAS
-
RAP
2h 12mnonstop
$208Allegiant Air
Sun, Feb 8 - Thu, Feb 12
Allegiant Air Logo
5:57 pm - 7:27 pm
RAP
-
LAS
2h 30mnonstop
Allegiant Air Logo
1:51 pm - 5:07 pm
LAS
-
RAP
2h 16mnonstop
$210Allegiant Air
Thu, May 7 - Thu, May 14
Allegiant Air Logo
5:42 pm - 7:13 pm
RAP
-
LAS
2h 31mnonstop
Allegiant Air Logo
1:40 pm - 4:52 pm
LAS
-
RAP
2h 12mnonstop
$217Allegiant Air
Thu, Feb 26 - Sun, Mar 1
Allegiant Air Logo
5:42 pm - 7:13 pm
RAP
-
LAS
2h 31mnonstop
Allegiant Air Logo
1:40 pm - 4:52 pm
LAS
-
RAP
2h 12mnonstop
$224Allegiant Air
Thu, Feb 12 - Thu, Feb 19
Multiple Airlines Logo
6:53 pm - 11:51 am
RAP
-
LAS
17h 58m1 stop
Multiple Airlines Logo
6:00 am - 6:03 pm
LAS
-
RAP
11h 03m1 stop
$231Multiple Airlines
Fri, Jan 30 - Fri, Feb 6
Multiple Airlines Logo
5:42 pm - 7:13 pm
RAP
-
LAS
2h 31mnonstop
Multiple Airlines Logo
7:35 am - 10:55 am
LAS
-
RAP
26h 20m2 stops
$246Multiple Airlines
Thu, Feb 26 - Sun, Mar 1

Allegiant Air flights from Rapid City to Las Vegas

Our best Allegiant Air deals on Rapid City to Las Vegas flight tickets
Allegiant Air
Jan 29
RAP10:10 pmRapid City
2h 23m
LAS11:33 pmLas Vegas Harry Reid Intl
Feb 1
LAS6:02 pmLas Vegas Harry Reid Intl
2h 18m
RAP9:20 pmRapid City
$131
Find similar
Allegiant Air
Feb 8
RAP10:10 pmRapid City
2h 23m
LAS11:33 pmLas Vegas Harry Reid Intl
Feb 12
LAS1:40 pmLas Vegas Harry Reid Intl
2h 12m
RAP4:52 pmRapid City
$208
Find similar
Allegiant Air
May 7
RAP5:57 pmRapid City
2h 30m
LAS7:27 pmLas Vegas Harry Reid Intl
May 14
LAS1:51 pmLas Vegas Harry Reid Intl
2h 16m
RAP5:07 pmRapid City
$210
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
Apr 29
RAP7:00 amRapid City
4h 50m
1 stop
LAS10:50 amLas Vegas Harry Reid Intl
May 2
LAS10:45 amLas Vegas Harry Reid Intl
5h 28m
1 stop
RAP5:13 pmRapid City
$261
Find similar
United Airlines
Jan 31
RAP2:40 pmRapid City
5h 22m
1 stop
LAS7:02 pmLas Vegas Harry Reid Intl
Feb 7
LAS5:20 amLas Vegas Harry Reid Intl
5h 05m
1 stop
RAP11:25 amRapid City
$269
Find similar
United Airlines
Jan 20
RAP5:10 amRapid City
4h 44m
1 stop
LAS8:54 amLas Vegas Harry Reid Intl
Jan 27
LAS5:20 amLas Vegas Harry Reid Intl
5h 05m
1 stop
RAP11:25 amRapid City
$270
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 January 3, 2026.
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 2/8

10:10 pm-11:33 pm

Nonstop2h 23m

Las Vegas Harry Reid Intl

Thu 2/12

1:40 pm-4:52 pm

Nonstop2h 12m

$110

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Thu 1/29

10:10 pm-11:33 pm

Nonstop2h 23m

Las Vegas Harry Reid Intl

Sun 2/1

6:02 pm-9:20 pm

Nonstop2h 18m

$131

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Sun 2/1

10:10 pm-11:33 pm

Nonstop2h 23m

Las Vegas Harry Reid Intl

Fri 2/6

6:00 am-6:03 pm

1 stop11h 03m

$167

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Thu 2/26

5:42 pm-7:13 pm

Nonstop2h 31m

Las Vegas Harry Reid Intl

Sun 3/1

6:30 am-10:55 am

1 stop27h 25m

$196

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Sun 2/8

10:10 pm-11:33 pm

Nonstop2h 23m

Las Vegas Harry Reid Intl

Thu 2/12

1:40 pm-4:52 pm

Nonstop2h 12m

$208

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Thu 5/7

5:57 pm-7:27 pm

Nonstop2h 30m

Las Vegas Harry Reid Intl

Thu 5/14

1:51 pm-5:07 pm

Nonstop2h 16m

$210

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Thu 2/26

5:42 pm-7:13 pm

Nonstop2h 31m

Las Vegas Harry Reid Intl

Sun 3/1

1:40 pm-4:52 pm

Nonstop2h 12m

$217

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Thu 2/12

5:42 pm-7:13 pm

Nonstop2h 31m

Las Vegas Harry Reid Intl

Thu 2/19

1:40 pm-4:52 pm

Nonstop2h 12m

$224

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Fri 1/30

6:53 pm-11:51 am

1 stop17h 58m

Las Vegas Harry Reid Intl

Fri 2/6

6:00 am-6:03 pm

1 stop11h 03m

$231

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Thu 2/26

5:42 pm-7:13 pm

Nonstop2h 31m

Las Vegas Harry Reid Intl

Sun 3/1

7:35 am-10:55 am

2 stops26h 20m

$246

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 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 $160. The month of September is another great option to travel to Las Vegas, with average flight prices from Rapid City averaging around $206.

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

Our data shows that Sunday is the least expensive day to fly to Las Vegas. Tickets to fly out on this day can be as low as $172. 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 $158. Flights to Las Vegas are more costly in the morning, with an average ticket price of $352. Departure times in the morning 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 $273 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 is only 1 cabin class 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 January 2026, prices for Rapid City to Las Vegas flights are approximately 20% more expensive 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

$156

Fastest flight time

2h 28m

Direct flights

Mon 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 $156. The best round-trip flight deal from Rapid City to Las Vegas found on momondo in the last 72 hours is $143.
The fastest flight from Rapid City to Las Vegas takes 2h 28m
Direct flights go from Rapid City to Las Vegas on Monday and Friday. The only airline offering direct flights is Allegiant Air.
There is 1 airport in Las Vegas. From Rapid City there are direct flights to 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 28m.

  • 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 $115Free CancellationRating
7.2
701 reviews
Search Allegiant Air flights
DeltaPriceFrom $175Free CancellationRating
7.9
8,023 reviews
Search Delta flights
United AirlinesPriceFrom $248Free CancellationRating
7.4
9,136 reviews
Search United Airlines flights

  • Allegiant Air Flights From Rapid City to Las Vegas

    Across 1 Allegiant Air flight from Rapid City to Las Vegas this week, the average price was $196, with the best Allegiant Air deals starting from $115 round-trip. 701 users have rated Allegiant Air on momondo, with an average score of 7.2/10.

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
Paradise
Mesquite
North Las Vegas
Kingman
Pahrump
Primm
Furnace Creek
Boulder City
Sunrise Manor
Winchester
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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