$214 Cheap Flights from Rock Springs (RKS) to Las Vegas (LAS)

View $214 flight on Wed, Jun 18, 2025Opens in a new window

Popular airlines from Rock Springs, WY (RKS-Sweetwater County) to Harry Reid Intl. Airport (LAS)

Find available prices by choosing your travel dates.

Cheap Flights from Rock Springs to Las Vegas (RKS-LAS)

Prices were available within the past 7 days and start at $214 for one-way flights and $238 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Jun 3 - Sat, Jun 7
RKS
Rock Springs
LAS
Las Vegas
$238 Roundtrip, found 2 hours ago
$238
Roundtrip
found 2 hours ago
Select United flight, departing Tue, Jun 3 from Rock Springs to Las Vegas, returning Sat, Jun 7, priced at $238 found 2 hours ago
United
Tue, May 6 - Tue, May 13
RKS
Rock Springs
LAS
Las Vegas
$243 Roundtrip, found 3 days ago
$243
Roundtrip
found 3 days ago
Select United flight, departing Tue, May 6 from Rock Springs to Las Vegas, returning Tue, May 13, priced at $243 found 3 days ago
United
Tue, May 6 - Tue, May 13
RKS
Rock Springs
LAS
Las Vegas
$249 Roundtrip, found 3 days ago
$249
Roundtrip
found 3 days ago
Select United flight, departing Tue, May 6 from Rock Springs to Las Vegas, returning Tue, May 13, priced at $249 found 3 days ago
United
Tue, May 6 - Tue, May 13
RKS
Rock Springs
LAS
Las Vegas
$254 Roundtrip, found 3 days ago
$254
Roundtrip
found 3 days ago
Select United flight, departing Tue, May 6 from Rock Springs to Las Vegas, returning Tue, May 13, priced at $254 found 3 days ago
United
Thu, Oct 23 - Mon, Oct 27
RKS
Rock Springs
LAS
Las Vegas
$258 Roundtrip, found 1 hour ago
$258
Roundtrip
found 1 hour ago
Select United flight, departing Thu, Oct 23 from Rock Springs to Las Vegas, returning Mon, Oct 27, priced at $258 found 1 hour ago
United
Fri, May 2 - Mon, May 5
RKS
Rock Springs
LAS
Las Vegas
$273 Roundtrip, found 2 days ago
$273
Roundtrip
found 2 days ago
Select United flight, departing Fri, May 2 from Rock Springs to Las Vegas, returning Mon, May 5, priced at $273 found 2 days ago
United
Fri, May 2 - Mon, May 5
RKS
Rock Springs
LAS
Las Vegas
$279 Roundtrip, found 2 days ago
$279
Roundtrip
found 2 days ago
Select United flight, departing Fri, May 2 from Rock Springs to Las Vegas, returning Mon, May 5, priced at $279 found 2 days ago
United
Fri, May 2 - Mon, May 5
RKS
Rock Springs
LAS
Las Vegas
$284 Roundtrip, found 2 days ago
$284
Roundtrip
found 2 days ago
Select United flight, departing Fri, May 2 from Rock Springs to Las Vegas, returning Mon, May 5, priced at $284 found 2 days ago
United
Mon, Oct 20 - Sat, Oct 25
RKS
Rock Springs
LAS
Las Vegas
$308 Roundtrip, found 1 hour ago
$308
Roundtrip
found 1 hour ago
Select United flight, departing Mon, Oct 20 from Rock Springs to Las Vegas, returning Sat, Oct 25, priced at $308 found 1 hour ago
United
Sun, May 11 - Sat, May 17
RKS
Rock Springs
LAS
Las Vegas
$313 Roundtrip, found 12 hours ago
$313
Roundtrip
found 12 hours ago
Select United flight, departing Sun, May 11 from Rock Springs to Las Vegas, returning Sat, May 17, priced at $313 found 12 hours ago
Flights from Rock Springs (RKS) to Las Vegas (LAS)
Origin airport
Sweetwater County
Destination airport
Harry Reid Intl.
Airlines serving
United
Roundtrip price
$238
Distance
501 mi

Rock Springs to Las Vegas Flights

The cheapest times to fly from Rock Springs to Las Vegas

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Rock Springs to Las Vegas are during the month of June. You can find some of the cheapest flights from Rock Springs to Las Vegas with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Rock Springs to Las Vegas

Sunday is one of the best days to book for cheap flights from Rock Springs to Las Vegas: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Rock Springs to Las Vegas

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Rock Springs to Las Vegas in 2025. You can also book with separate airlines for your outbound and return journeys, from $214 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Rock Springs to Las Vegas flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Rock Springs to Las Vegas airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Sweetwater County Airport (RKS) to Harry Reid Intl. Airport (LAS) cost?
Discover the latest flight deals from RKS 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 RKS to LAS?
The cheapest flights from RKS 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 RKS to LAS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from RKS to LAS. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Sweetwater County Airport (RKS) to Harry Reid Intl. Airport (LAS)?
Nonstop flights from Sweetwater County Airport (RKS) to Harry Reid Intl. Airport (LAS) aren’t available daily, so you’ll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and pick either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from RKS to LAS?
Usually you’ll find the most flight options available on a Friday. Tuesdays are often the quietest.* But this can vary based on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sweetwater County Airport (RKS) to Harry Reid Intl. Airport (LAS)?
Book a flight from Sweetwater County Airport (RKS) to Harry Reid Intl. Airport (LAS) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures later than this have a 22% higher chance of being canceled, on average.**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.
Is it cheaper to buy a plane ticket from Sweetwater County Airport (RKS) to Harry Reid Intl. Airport (LAS) last-minute?
Waiting until right before your break to book a ticket from RKS to LAS often results in higher prices. While you might find some last-minute discounts, there’s no guarantee. Allow some flexibility in your schedule for the best chance of getting a bargain.
Is it cheaper to book a RKS to LAS flight and hotel package?
Securing a RKS to LAS flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Select from our impressive range of accommodations and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Sweetwater County Airport (RKS) to Harry Reid Intl. Airport (LAS)?
It’s generally possible to cancel or reschedule your RKS to LAS flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline’s policies in your itinerary to see what changes are possible and whether any costs are involved. You’ll also find more information on our Customer Service portal.

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*Available to One Key members.