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$68+ Cheap flights from Rapid City to Las Vegas (RAP - LAS)

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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — LAS
Aug 12 — Aug 191
Tue 8/12
Tue 8/19
1 adult, Economy
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Cheapflights Tip: The best prices from Rapid City to Las Vegas Harry Reid Intl are usually found in August or September, booked 90 days in advance, depart on a Monday or Friday and return on a Tuesday

Cheap flight deals from Rapid City to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from Rapid City (RAP) to Las Vegas (LAS). 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, 2025.

Round-trip from

$122
(Mytrip)

One-way from

$68
(Booking.com)

Popular in

April

Cheapest in

August

Average price

$150

Good round-trip deal

$122 or less

Good one-way deal

$68 or less
From Rapid City to Las Vegas Harry Reid Intl
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One-way flight from Rapid City to Las Vegas Harry Reid Intl
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Highest demand for flights based on searches. 22% potential increase in price ($72 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Rapid City to Las Vegas Harry Reid Intl.
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Price to beat on a one-way flight from Rapid City to Las Vegas Harry Reid Intl.
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Find flight deals from Rapid City to Las Vegas

Cheapest flights from Rapid City to Las Vegas
Explore the most affordable flight options available from Rapid City to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 7, 2025.

This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/75:39 pmRAP - LAS
Nonstop2h 20mAllegiant Air
Thu 9/111:32 pmLAS - RAP
Nonstop2h 17mAllegiant Air
Deal found 8/6$122
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/55:58 pmRAP - LAS
Nonstop2h 22mAllegiant Air
Thu 10/161:52 pmLAS - RAP
Nonstop2h 16mAllegiant Air
Deal found 8/5$180
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/76:05 amRAP - LAS
1 stop7h 40mDelta
Sat 10/112:05 pmLAS - RAP
1 stop7h 31mDelta
Deal found 8/6$245
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/205:00 pmRAP - LAS
1 stop6h 22mAmerican Airlines
Sat 9/277:00 amLAS - RAP
1 stop7h 02mAmerican Airlines
Deal found 8/6$248
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/274:34 pmRAP - LAS
1 stop7h 36mDelta
Sat 11/16:05 amLAS - RAP
1 stop6h 40mDelta
Deal found 8/5$249
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/196:20 amRAP - LAS
1 stop7h 10mDelta
Mon 8/2512:35 amLAS - RAP
1 stop8h 39mDelta
Deal found 8/6$250
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/125:34 amRAP - LAS
2 stops13h 35mAmerican Airlines
Sat 11/159:58 amLAS - RAP
2 stops10h 17mAmerican Airlines
Deal found 8/5$255
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/218:30 pmRAP - LAS
Nonstop2h 22mMultiple Airlines
Sun 8/2410:36 pmLAS - RAP
2 stops17h 10mMultiple Airlines
Deal found 8/6$288
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.
Tue 9/25:30 amRAP - LAS
1 stop4h 15mUnited Airlines
Tue 9/94:40 pmLAS - RAP
1 stop4h 19mUnited Airlines
Deal found 8/4$295

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated August 7, 2025.
Use the filters below to find and compare flights from Rapid City to Las Vegas that are best for you.

Fly from

Rapid City

Fly to

Las Vegas

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

Sun 10/5

5:58 pm-7:20 pm

Nonstop2h 22m

Las Vegas Harry Reid Intl

Thu 10/16

1:52 pm-5:08 pm

Nonstop2h 16m

$180

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Tue 10/7

6:05 am-12:45 pm

1 stop7h 40m

Las Vegas Harry Reid Intl

Sat 10/11

2:05 pm-10:36 pm

1 stop7h 31m

$245

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Sat 9/20

5:00 pm-10:22 pm

1 stop6h 22m

Las Vegas Harry Reid Intl

Sat 9/27

7:00 am-3:02 pm

1 stop7h 02m

$248

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Mon 10/27

4:34 pm-11:10 pm

1 stop7h 36m

Las Vegas Harry Reid Intl

Sat 11/1

6:05 am-1:45 pm

1 stop6h 40m

$249

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Tue 8/19

6:20 am-12:30 pm

1 stop7h 10m

Las Vegas Harry Reid Intl

Mon 8/25

12:35 am-10:14 am

1 stop8h 39m

$250

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Wed 11/12

5:34 am-6:09 pm

2 stops13h 35m

Las Vegas Harry Reid Intl

Sat 11/15

9:58 am-9:15 pm

2 stops10h 17m

$255

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Thu 8/21

8:30 pm-9:52 pm

Nonstop2h 22m

Las Vegas Harry Reid Intl

Sun 8/24

10:36 pm-4:46 pm

2 stops17h 10m

$288

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Tue 9/2

5:30 am-8:45 am

1 stop4h 15m

Las Vegas Harry Reid Intl

Tue 9/9

4:40 pm-9:59 pm

1 stop4h 19m

$295

Rapid CityLas Vegas

RAP - LAS

RAPLAS

Rapid City

Thu 8/21

8:30 pm-9:52 pm

Nonstop2h 22m

$68

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/5

Showing 1-10 of 18 results
1
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Best time to book a flight from Rapid City to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas 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 Las Vegas

How far ahead should I book a flight from Rapid City to Las Vegas?

Use this chart to determine the optimal time to book a round-trip flight from Rapid City to Las Vegas. Price data was last updated on August 1, 2025.

Booking 90 days in advance of your planned departure date is, on average, the best time to get cheap flights from Rapid City to Las Vegas. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, August is the cheapest month in which you can book a flight from Rapid City to Las Vegas (average of $198). Flying from Rapid City to Las Vegas in March is currently the most expensive (average of $269). 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 LAS?

Find hourly flight availability from Rapid City to Las Vegas. 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, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 36% on flights from Rapid City to Las Vegas by exploring options for tickets in the morning.

Reviews of airlines servicing Las Vegas

Get insights into the airlines that provide service to Las Vegas. 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 Las Vegas. Reviews last updated August 7, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Rapid City to Las Vegas to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,987 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,987 reviews
Delta
8.0
Very good
7,987 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,916 reviews
Delta
8.0
Very good
7,987 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,987 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Allegiant Air
7.2
Good
701 reviews
Delta
8.0
Very good
7,987 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

  • How popular is this Rapid City to Las Vegas flight route?

    Flights from Rapid City to Las Vegas Harry Reid Intl have been viewed 5 times in the past calendar month.

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

    Flying on Allegiant Air is currently your cheapest option to Las Vegas, with prices starting at $122. You may be able to fly from Rapid City to Las Vegas for 51% less than the average price by searching for this airline.

  • What are the cheapest flights from Rapid City to Las Vegas?

    Looking at all options, your cheapest flight can be booked for $61. While the most popular route (Rapid City - Las Vegas Harry Reid Intl) can be booked for $122 on average our data indicates $141 when flying from Rapid City to Las Vegas.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Rapid City to Las Vegas 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 Las Vegas?

    Currently, August is the cheapest month in which you can book a flight from Rapid City to Las Vegas (average of $198). Flying from Rapid City to Las Vegas in March is currently the most expensive (average of $269). 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 Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Henderson
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Needles
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Alternative routes for Rapid City to Las Vegas

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Top 4 airlines flying from Rapid City to Las Vegas

Discover the top 4 airlines that operate flights from Rapid City to Las Vegas. 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, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$112Average$173FlexibilityNo cancel feeOn-time88%
DeltaCheapest$205Average$318FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$248Average$373FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$248Average$394FlexibilityNo cancel feeOn-time69%

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