$263 Cheap Flights from Williston (XWA) to Rock Springs (RKS)

View $263 flight on Sun, Nov 16, 2025Opens in a new window

Popular airlines from Williston, ND (XWA-Basin Intl.) to Rock Springs, WY (RKS-Sweetwater County)

Cheap Flights from Williston to Rock Springs (XWA-RKS)

Prices were available within the past 7 days and start at $263 for one-way flights and $298 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Dec 7 - Thu, Dec 25
XWA
Williston
RKS
Rock Springs
$298 Roundtrip, found 5 days ago
$298
Roundtrip
found 5 days ago
Select United flight, departing Sun, Dec 7 from Williston to Rock Springs, returning Thu, Dec 25, priced at $298 found 5 days ago
United
Sun, Nov 9 - Sun, Nov 23
XWA
Williston
RKS
Rock Springs
$303 Roundtrip, found 5 days ago
$303
Roundtrip
found 5 days ago
Select United flight, departing Sun, Nov 9 from Williston to Rock Springs, returning Sun, Nov 23, priced at $303 found 5 days ago
United
Mon, Dec 29 - Thu, Jan 15
XWA
Williston
RKS
Rock Springs
$324 Roundtrip, found 5 days ago
$324
Roundtrip
found 5 days ago
Select United flight, departing Mon, Dec 29 from Williston to Rock Springs, returning Thu, Jan 15, priced at $324 found 5 days ago
United
Sun, Nov 16 - Sat, Dec 6
XWA
Williston
RKS
Rock Springs
$343 Roundtrip, found 5 days ago
$343
Roundtrip
found 5 days ago
Select United flight, departing Sun, Nov 16 from Williston to Rock Springs, returning Sat, Dec 6, priced at $343 found 5 days ago
United
Mon, Nov 3 - Sat, Nov 22
XWA
Williston
RKS
Rock Springs
$348 Roundtrip, found 5 days ago
$348
Roundtrip
found 5 days ago
Select United flight, departing Mon, Nov 3 from Williston to Rock Springs, returning Sat, Nov 22, priced at $348 found 5 days ago
United
Mon, Dec 29 - Sun, Jan 11
XWA
Williston
RKS
Rock Springs
$369 Roundtrip, found 5 days ago
$369
Roundtrip
found 5 days ago
Select United flight, departing Mon, Dec 29 from Williston to Rock Springs, returning Sun, Jan 11, priced at $369 found 5 days ago
United
Fri, Nov 7 - Sat, Nov 22
XWA
Williston
RKS
Rock Springs
$388 Roundtrip, found 5 days ago
$388
Roundtrip
found 5 days ago
Select United flight, departing Fri, Nov 7 from Williston to Rock Springs, returning Sat, Nov 22, priced at $388 found 5 days ago
United
Mon, Nov 3 - Fri, Nov 21
XWA
Williston
RKS
Rock Springs
$394 Roundtrip, found 5 days ago
$394
Roundtrip
found 5 days ago
Select United flight, departing Mon, Nov 3 from Williston to Rock Springs, returning Fri, Nov 21, priced at $394 found 5 days ago
United
Sun, Dec 7 - Wed, Dec 24
XWA
Williston
RKS
Rock Springs
$408 Roundtrip, found 5 days ago
$408
Roundtrip
found 5 days ago
Select United flight, departing Sun, Dec 7 from Williston to Rock Springs, returning Wed, Dec 24, priced at $408 found 5 days ago
United
Wed, Dec 10 - Thu, Dec 25
XWA
Williston
RKS
Rock Springs
$412 Roundtrip, found 5 days ago
$412
Roundtrip
found 5 days ago
Select United flight, departing Wed, Dec 10 from Williston to Rock Springs, returning Thu, Dec 25, priced at $412 found 5 days ago

Alternative airports near Rock Springs

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

Select flight to Sweetwater County RKS. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $389
RKS
Sweetwater County
CheapestClosest
Average driving time to city center14 min
Flights from $389

Frequently asked questions

How much does a flight from Basin Intl. Airport (XWA) to Sweetwater County Airport (RKS) cost?
Lock in a cheap one-way flight from $263 or cheap return flight from $298 from Basin Intl. Airport (XWA) to Sweetwater County Airport (RKS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Basin Intl. Airport (XWA) to Sweetwater County Airport (RKS)?
Traveling in December can help you save, as it's the cheapest month for flights between XWA and RKS. You'll usually find the lowest fares during the off-season.
What is the cheapest airline that flies from Basin Intl. Airport (XWA) to Sweetwater County Airport (RKS)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll fly you from XWA to RKS. Then, sort your results by "Price (lowest to highest)" to snag a good deal.
How many flights per day from Basin Intl. Airport (XWA) to Sweetwater County Airport (RKS)?
You'll need to take a flight with a layover if you're traveling from Basin Intl. Airport (XWA) to Sweetwater County Airport (RKS). There are no daily direct flights on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from XWA to RKS?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary based on various factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Basin Intl. Airport (XWA) to Sweetwater County Airport (RKS)?
Select a flight from Basin Intl. Airport (XWA) to Sweetwater County Airport (RKS) that takes off before 3 PM to reduce the risk of cancellations and delays. Departures later than this are on average 22% more likely to be canceled.**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 Basin Intl. Airport (XWA) to Sweetwater County Airport (RKS) last-minute?
Waiting until right before your break to book your flight from XWA to RKS generally means paying more. Although you may find some last-minute deals, they're not always guaranteed. Keep your travel schedule open for the best chance of getting a bargain.
Is it cheaper to book a XWA to RKS flight and hotel package?
Compared with arranging flights and hotels separately, booking a XWA to RKS flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one place takes the hassle out of planning your trip. Just pick your flights and choose from our wide range of hotels, then personalize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Basin Intl. Airport (XWA) to Sweetwater County Airport (RKS)?
Generally, it's possible to reschedule or cancel your XWA to RKS 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 details on our Customer Service portal.

Travel information

Origin airport
Basin Intl.
Destination airport
Sweetwater County
Roundtrip price
$298
Distance
528 mi

Book with confidence

Williston to Rock Springs Flights

The cheapest times to fly from Williston to Rock Springs

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 Williston to Rock Springs are during the month of December. You can find some of the cheapest flights from Williston to Rock Springs with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Williston to Rock Springs

Sunday is one of the best days to book for cheap flights from Williston to Rock Springs: 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 Williston to Rock Springs

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 Williston to Rock Springs in 2025. You can also book with separate airlines for your outbound and return journeys, from $263 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 Williston to Rock Springs 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 Williston to Rock Springs 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.

 

Williston to Rock Springs Flights

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*Available to One Key members.