$239 Cheap Flights from Rock Springs (RKS) to Las Vegas (LAS)

View $239 flight on Thu, Feb 12, 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at $239 for one-way flights and $238 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Oct 25 - Wed, Oct 29
RKS
Rock Springs
LAS
Las Vegas
$238 Roundtrip, found 11 hours ago
$238
Roundtrip
found 11 hours ago
Select United flight, departing Sat, Oct 25 from Rock Springs to Las Vegas, returning Wed, Oct 29, priced at $238 found 11 hours ago
United
Sat, Oct 25 - Wed, Oct 29
RKS
Rock Springs
LAS
Las Vegas
$244 Roundtrip, found 11 hours ago
$244
Roundtrip
found 11 hours ago
Select United flight, departing Sat, Oct 25 from Rock Springs to Las Vegas, returning Wed, Oct 29, priced at $244 found 11 hours ago
United
Sat, Oct 25 - Wed, Oct 29
RKS
Rock Springs
LAS
Las Vegas
$249 Roundtrip, found 11 hours ago
$249
Roundtrip
found 11 hours ago
Select United flight, departing Sat, Oct 25 from Rock Springs to Las Vegas, returning Wed, Oct 29, priced at $249 found 11 hours ago
United
Sat, Oct 25 - Wed, Oct 29
RKS
Rock Springs
LAS
Las Vegas
$259 Roundtrip, found 11 hours ago
$259
Roundtrip
found 11 hours ago
Select United flight, departing Sat, Oct 25 from Rock Springs to Las Vegas, returning Wed, Oct 29, priced at $259 found 11 hours ago
United
Wed, Apr 8 - Sat, Apr 11
RKS
Rock Springs
LAS
Las Vegas
$260 Roundtrip, found 18 hours ago
$260
Roundtrip
found 18 hours ago
Select United flight, departing Wed, Apr 8 from Rock Springs to Las Vegas, returning Sat, Apr 11, priced at $260 found 18 hours ago
United
Sat, Oct 25 - Wed, Oct 29
RKS
Rock Springs
LAS
Las Vegas
$264 Roundtrip, found 11 hours ago
$264
Roundtrip
found 11 hours ago
Select United flight, departing Sat, Oct 25 from Rock Springs to Las Vegas, returning Wed, Oct 29, priced at $264 found 11 hours ago
United
Wed, Apr 8 - Sat, Apr 11
RKS
Rock Springs
LAS
Las Vegas
$265 Roundtrip, found 18 hours ago
$265
Roundtrip
found 18 hours ago
Select United flight, departing Wed, Apr 8 from Rock Springs to Las Vegas, returning Sat, Apr 11, priced at $265 found 18 hours ago
United
Fri, Nov 14 - Mon, Nov 17
RKS
Rock Springs
LAS
Las Vegas
$268 Roundtrip, found 23 hours ago
$268
Roundtrip
found 23 hours ago
Select United flight, departing Fri, Nov 14 from Rock Springs to Las Vegas, returning Mon, Nov 17, priced at $268 found 23 hours ago
United
Sat, Oct 25 - Wed, Oct 29
RKS
Rock Springs
LAS
Las Vegas
$269 Roundtrip, found 11 hours ago
$269
Roundtrip
found 11 hours ago
Select United flight, departing Sat, Oct 25 from Rock Springs to Las Vegas, returning Wed, Oct 29, priced at $269 found 11 hours ago
United
Fri, Nov 14 - Mon, Nov 17
RKS
Rock Springs
LAS
Las Vegas
$271 Roundtrip, found 23 hours ago
$271
Roundtrip
found 23 hours ago
Select United flight, departing Fri, Nov 14 from Rock Springs to Las Vegas, returning Mon, Nov 17, priced at $271 found 23 hours ago

Alternative airports near Las Vegas

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to McCarran Intl. LAS. Cheapest and Closest option available. Average driving time to city center is 6 minutes. Flights from $632
LAS
McCarran Intl.
CheapestClosest
Average driving time to city center6 min
Flights from $632

Frequently asked questions

How much does a flight from Sweetwater County Airport (RKS) to Harry Reid Intl. Airport (LAS) cost?
Snag a cheap one-way flight from $239 or cheap return flight from $238 from Sweetwater County Airport (RKS) to Harry Reid Intl. Airport (LAS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Sweetwater County Airport (RKS) to Harry Reid Intl. Airport (LAS)?
Planning your getaway for October can help you save, as it's the cheapest month for flights between RKS and LAS. You'll typically find the lowest fares during the off-season.
What is the cheapest airline that flies from Sweetwater County Airport (RKS) to Harry Reid Intl. Airport (LAS)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll fly you from RKS to LAS. Then, sort your results by "Price (lowest to highest)" to score 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.

Travel information

Travel information

Origin airport
Sweetwater County
Destination airport
Harry Reid Intl.
Airlines serving
United
Roundtrip price
$238
Distance
501 mi

Book with confidence

Book with confidence

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 October. 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 $239 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.

 

Rock Springs to Las Vegas Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.