$139 Cheap Flights from Rapid City (RAP) to Las Vegas (LAS)

View $139 flight on Mon, Jun 23, 2025Opens in a new window
Find available prices by choosing your travel dates.

Cheap Flights from Rapid City to Las Vegas (RAP-LAS)

Prices were available within the past 7 days and start at $139 for one-way flights and $249 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Jul 3 - Tue, Jul 8
RAP
Rapid City
LAS
Las Vegas
$249 Roundtrip, just found
$249
Roundtrip
just found
Select American Airlines flight, departing Thu, Jul 3 from Rapid City to Las Vegas, returning Tue, Jul 8, priced at $249 just found
Delta
Wed, Sep 3 - Sat, Sep 6
RAP
Rapid City
LAS
Las Vegas
$249 Roundtrip, found 10 hours ago
$249
Roundtrip
found 10 hours ago
Select Delta flight, departing Wed, Sep 3 from Rapid City to Las Vegas, returning Sat, Sep 6, priced at $249 found 10 hours ago
United
Fri, May 9 - Fri, May 16
RAP
Rapid City
LAS
Las Vegas
$254 Roundtrip, just found
$254
Roundtrip
just found
Select United flight, departing Fri, May 9 from Rapid City to Las Vegas, returning Fri, May 16, priced at $254 just found
United
Wed, Sep 3 - Sat, Sep 6
RAP
Rapid City
LAS
Las Vegas
$254 Roundtrip, found 10 hours ago
$254
Roundtrip
found 10 hours ago
Select United flight, departing Wed, Sep 3 from Rapid City to Las Vegas, returning Sat, Sep 6, priced at $254 found 10 hours ago
United
Wed, May 28 - Wed, Jun 4
RAP
Rapid City
LAS
Las Vegas
$259 Roundtrip, found 12 hours ago
$259
Roundtrip
found 12 hours ago
Select United flight, departing Wed, May 28 from Rapid City to Las Vegas, returning Wed, Jun 4, priced at $259 found 12 hours ago
United
Tue, May 6 - Tue, May 13
RAP
Rapid City
LAS
Las Vegas
$259 Roundtrip, found 2 days ago
$259
Roundtrip
found 2 days ago
Select United flight, departing Tue, May 6 from Rapid City to Las Vegas, returning Tue, May 13, priced at $259 found 2 days ago
United
Thu, Jul 17 - Thu, Jul 24
RAP
Rapid City
LAS
Las Vegas
$262 Roundtrip, found 2 days ago
$262
Roundtrip
found 2 days ago
Select United flight, departing Thu, Jul 17 from Rapid City to Las Vegas, returning Thu, Jul 24, priced at $262 found 2 days ago
United
Thu, Jul 24 - Sat, Jul 26
RAP
Rapid City
LAS
Las Vegas
$263 Roundtrip, found 2 days ago
$263
Roundtrip
found 2 days ago
Select United flight, departing Thu, Jul 24 from Rapid City to Las Vegas, returning Sat, Jul 26, priced at $263 found 2 days ago
United
Thu, Jun 12 - Tue, Jun 17
RAP
Rapid City
LAS
Las Vegas
$264 Roundtrip, found 1 day ago
$264
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jun 12 from Rapid City to Las Vegas, returning Tue, Jun 17, priced at $264 found 1 day ago
United
Fri, May 2 - Sat, May 3
RAP
Rapid City
LAS
Las Vegas
$264 Roundtrip, found 6 days ago
$264
Roundtrip
found 6 days ago
Select United flight, departing Fri, May 2 from Rapid City to Las Vegas, returning Sat, May 3, priced at $264 found 6 days ago

Frequently asked questions

How much does a flight from Rapid City Regional Airport (RAP) to Harry Reid Intl. Airport (LAS) cost?
Discover the latest flight deals from RAP to LAS by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from RAP to LAS?
The cheapest flights from RAP to LAS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from RAP to LAS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from RAP to LAS. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Rapid City Regional Airport (RAP) to Harry Reid Intl. Airport (LAS)?
On average, you can choose from 2 direct flights every week from Rapid City Regional Airport (RAP) to Harry Reid Intl. Airport (LAS). To expand your choices, consider a flight with a layover. Just enter your dates on Expedia and then filter your search results to show one stop or more.
What are the most popular departure times for flights from Rapid City Regional Airport (RAP) to Harry Reid Intl. Airport (LAS)?
The 10 PM departures from RAP to LAS are typically the busiest. These flights can come with a higher price due to their popularity. If you’re hoping to save money, pick a less crowded time to fly.
What day of the week has the most flights from RAP to LAS?
Thursday has the most flights from Rapid City Regional Airport (RAP) to Harry Reid Intl. Airport (LAS). Consider taking off on this day and you’ll have the best chance of finding a departure that fits your itinerary.
What is the earliest flight from Rapid City Regional Airport (RAP) to Harry Reid Intl. Airport (LAS)?
Rapid City Regional Airport (RAP)’s first flight to Harry Reid Intl. Airport (LAS) takes off at approximately 10:08PM UTC-7. With a travel time of 2h 26m, you’ll touch down at around 11:34PM UTC-8.
How long does it take to fly from Rapid City Regional Airport (RAP) to Harry Reid Intl. Airport (LAS)?
Flights from RAP to LAS have an average travel time of 2 hours and 26 minutes. The total distance between the two airports is 840 mi.
What is the best time to fly from Rapid City Regional Airport (RAP) to Harry Reid Intl. Airport (LAS)?
To reach Harry Reid Intl. Airport (LAS) without delays, book a flight that leaves from Rapid City Regional Airport (RAP) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Las Vegas from Rapid City Regional Airport (RAP)?
Harry Reid Intl. Airport (LAS) is the only airport in Las Vegas with direct flights from Rapid City Regional Airport (RAP). Explore your options and find cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Rapid City Regional Airport (RAP) to Harry Reid Intl. Airport (LAS) last-minute?
Last-minute fares from RAP to LAS are generally more expensive. For the best rates, start looking for flights as early as possible. That said, if you’re flexible with your travel plans, it’s possible to find a cheap ticket right before your journey.
Is it cheaper to book a RAP to LAS flight and hotel package?
You can save money by securing a RAP to LAS flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it’s easy to manage it all in one place. Once you’ve chosen your preferred accommodations and flights, consider adding extras such as tours, car rentals and activities.
Can I cancel or change the date of my flight from Rapid City Regional Airport (RAP) to Harry Reid Intl. Airport (LAS)?
If you reserved your RAP to LAS flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you want more information.
*Available to One Key members.