$233 Cheap Flights from Spokane (GEG) to Rock Springs (RKS)

View $233 flight on Fri, Jan 2, 2026Opens in a new window

Popular airlines from Spokane International Airport (GEG) to Rock Springs, WY (RKS-Sweetwater County)

Cheap Flights from Spokane to Rock Springs (GEG-RKS)

Prices were available within the past 7 days and start at $233 for one-way flights and $323 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Nov 24 - Wed, Dec 3
GEG
Spokane
RKS
Rock Springs
$323 Roundtrip, found 3 days ago
$323
Roundtrip
found 3 days ago
Select United flight, departing Mon, Nov 24 from Spokane to Rock Springs, returning Wed, Dec 3, priced at $323 found 3 days ago
United
Mon, Dec 22 - Thu, Dec 25
GEG
Spokane
RKS
Rock Springs
$328 Roundtrip, found 21 hours ago
$328
Roundtrip
found 21 hours ago
Select United flight, departing Mon, Dec 22 from Spokane to Rock Springs, returning Thu, Dec 25, priced at $328 found 21 hours ago
United
Thu, Nov 20 - Wed, Dec 3
GEG
Spokane
RKS
Rock Springs
$353 Roundtrip, found 3 days ago
$353
Roundtrip
found 3 days ago
Select United flight, departing Thu, Nov 20 from Spokane to Rock Springs, returning Wed, Dec 3, priced at $353 found 3 days ago
United
Mon, Dec 22 - Thu, Dec 25
GEG
Spokane
RKS
Rock Springs
$397 Roundtrip, found 21 hours ago
$397
Roundtrip
found 21 hours ago
Select United flight, departing Mon, Dec 22 from Spokane to Rock Springs, returning Thu, Dec 25, priced at $397 found 21 hours ago
United
Mon, Dec 22 - Thu, Dec 25
GEG
Spokane
RKS
Rock Springs
$398 Roundtrip, found 21 hours ago
$398
Roundtrip
found 21 hours ago
Select United flight, departing Mon, Dec 22 from Spokane to Rock Springs, returning Thu, Dec 25, priced at $398 found 21 hours ago
United
Fri, Nov 28 - Tue, Dec 2
GEG
Spokane
RKS
Rock Springs
$404 Roundtrip, found 6 days ago
$404
Roundtrip
found 6 days ago
Select United flight, departing Fri, Nov 28 from Spokane to Rock Springs, returning Tue, Dec 2, priced at $404 found 6 days ago
United
Mon, Nov 24 - Thu, Nov 27
GEG
Spokane
RKS
Rock Springs
$419 Roundtrip, found 3 days ago
$419
Roundtrip
found 3 days ago
Select United flight, departing Mon, Nov 24 from Spokane to Rock Springs, returning Thu, Nov 27, priced at $419 found 3 days ago
United
Mon, Dec 22 - Thu, Dec 25
GEG
Spokane
RKS
Rock Springs
$431 Roundtrip, found 21 hours ago
$431
Roundtrip
found 21 hours ago
Select United flight, departing Mon, Dec 22 from Spokane to Rock Springs, returning Thu, Dec 25, priced at $431 found 21 hours ago
United
Tue, Nov 25 - Wed, Dec 3
GEG
Spokane
RKS
Rock Springs
$444 Roundtrip, found 3 days ago
$444
Roundtrip
found 3 days ago
Select United flight, departing Tue, Nov 25 from Spokane to Rock Springs, returning Wed, Dec 3, priced at $444 found 3 days ago
United
Mon, Dec 22 - Thu, Dec 25
GEG
Spokane
RKS
Rock Springs
$449 Roundtrip, found 21 hours ago
$449
Roundtrip
found 21 hours ago
Select United flight, departing Mon, Dec 22 from Spokane to Rock Springs, returning Thu, Dec 25, priced at $449 found 21 hours ago
United
Mon, Dec 22 - Thu, Dec 25
GEG
Spokane
RKS
Rock Springs
$467 Roundtrip, found 21 hours ago
$467
Roundtrip
found 21 hours ago
Select United flight, departing Mon, Dec 22 from Spokane to Rock Springs, returning Thu, Dec 25, priced at $467 found 21 hours ago
United
Mon, Dec 22 - Thu, Dec 25
GEG
Spokane
RKS
Rock Springs
$468 Roundtrip, found 21 hours ago
$468
Roundtrip
found 21 hours ago
Select United flight, departing Mon, Dec 22 from Spokane to Rock Springs, returning Thu, Dec 25, priced at $468 found 21 hours 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 $576
RKS
Sweetwater County
CheapestClosest
Average driving time to city center14 min
Flights from $576

Frequently asked questions

How much does a flight from Spokane Intl. Airport (GEG) to Sweetwater County Airport (RKS) cost?
Get a cheap one-way flight from $233 or cheap return flight from $323 from Spokane Intl. Airport (GEG) to Sweetwater County Airport (RKS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Spokane Intl. Airport (GEG) to Sweetwater County Airport (RKS)?
Flying in November may help you find better deals, as it's the cheapest month for flights between GEG and RKS. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from Spokane Intl. Airport (GEG) to Sweetwater County Airport (RKS)?
To find the cheapest airline flying from GEG to RKS, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Spokane Intl. Airport (GEG) to Sweetwater County Airport (RKS)?
Nonstop flights from Spokane Intl. Airport (GEG) to Sweetwater County Airport (RKS) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from GEG to RKS?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change depending on a range of factors, including 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 Spokane Intl. Airport (GEG) to Sweetwater County Airport (RKS)?
Select a flight from Spokane Intl. Airport (GEG) to Sweetwater County Airport (RKS) that leaves before 3 PM to reduce the risk of cancellations. 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 Spokane Intl. Airport (GEG) to Sweetwater County Airport (RKS) last-minute?
Last-minute fares from GEG to RKS are typically more expensive. To lock in the lowest prices, start searching for flights well in advance. That being said, if you're flexible with your travel dates, you may land a cheap ticket just before your departure.
Is it cheaper to book a GEG to RKS flight and hotel package?
Securing a GEG to RKS flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Select from our impressive range of hotels and then add flights, car rentals and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Spokane Intl. Airport (GEG) to Sweetwater County Airport (RKS)?
If you booked your GEG to RKS flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare you purchased, 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.

Travel information

Origin airport
Spokane Intl.
Destination airport
Sweetwater County
Airlines serving
United
Roundtrip price
$323
Distance
588 mi

Book with confidence

Spokane to Rock Springs Flights

The cheapest times to fly from Spokane 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 Spokane to Rock Springs are during the month of November. You can find some of the cheapest flights from Spokane to Rock Springs with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Spokane 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 Spokane 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 Spokane to Rock Springs in 2025. You can also book with separate airlines for your outbound and return journeys, from $233 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 Spokane 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 Spokane 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.

 

Spokane to Rock Springs Flights

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*Available to One Key members.