$268 Cheap Flights from Kansas City (MCI) to Rock Springs (RKS)

View $268 flight on Sun, Jan 18, 2026Opens in a new window

Popular airlines from Kansas City International Airport (MCI) to Rock Springs, WY (RKS-Sweetwater County)

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Cheap Flights from Kansas City to Rock Springs (MCI-RKS)

Prices were available within the past 7 days and start at $268 for one-way flights and $308 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Jan 28 - Sat, Jan 31
MCI
Kansas City
RKS
Rock Springs
$308 Roundtrip, found 6 days ago
$308
Roundtrip
found 6 days ago
Select United flight, departing Wed, Jan 28 from Kansas City to Rock Springs, returning Sat, Jan 31, priced at $308 found 6 days ago
United
Wed, Dec 17 - Tue, Jan 6
MCI
Kansas City
RKS
Rock Springs
$323 Roundtrip, found 3 days ago
$323
Roundtrip
found 3 days ago
Select United flight, departing Wed, Dec 17 from Kansas City to Rock Springs, returning Tue, Jan 6, priced at $323 found 3 days ago
United
Wed, Dec 17 - Sun, Dec 21
MCI
Kansas City
RKS
Rock Springs
$338 Roundtrip, found 3 days ago
$338
Roundtrip
found 3 days ago
Select United flight, departing Wed, Dec 17 from Kansas City to Rock Springs, returning Sun, Dec 21, priced at $338 found 3 days ago
United
Tue, Dec 23 - Tue, Jan 6
MCI
Kansas City
RKS
Rock Springs
$353 Roundtrip, found 3 days ago
$353
Roundtrip
found 3 days ago
Select United flight, departing Tue, Dec 23 from Kansas City to Rock Springs, returning Tue, Jan 6, priced at $353 found 3 days ago
United
Sat, Dec 20 - Sun, Dec 21
MCI
Kansas City
RKS
Rock Springs
$368 Roundtrip, found 3 days ago
$368
Roundtrip
found 3 days ago
Select United flight, departing Sat, Dec 20 from Kansas City to Rock Springs, returning Sun, Dec 21, priced at $368 found 3 days ago
United
Wed, Jan 28 - Sat, Jan 31
MCI
Kansas City
RKS
Rock Springs
$378 Roundtrip, found 6 days ago
$378
Roundtrip
found 6 days ago
Select United flight, departing Wed, Jan 28 from Kansas City to Rock Springs, returning Sat, Jan 31, priced at $378 found 6 days ago
United
Tue, Dec 23 - Thu, Jan 1
MCI
Kansas City
RKS
Rock Springs
$398 Roundtrip, found 3 days ago
$398
Roundtrip
found 3 days ago
Select United flight, departing Tue, Dec 23 from Kansas City to Rock Springs, returning Thu, Jan 1, priced at $398 found 3 days ago
United
Tue, Jan 27 - Fri, Feb 13
MCI
Kansas City
RKS
Rock Springs
$402 Roundtrip, found 6 days ago
$402
Roundtrip
found 6 days ago
Select United flight, departing Tue, Jan 27 from Kansas City to Rock Springs, returning Fri, Feb 13, priced at $402 found 6 days ago
United
Fri, Dec 19 - Tue, Jan 6
MCI
Kansas City
RKS
Rock Springs
$409 Roundtrip, found 3 days ago
$409
Roundtrip
found 3 days ago
Select United flight, departing Fri, Dec 19 from Kansas City to Rock Springs, returning Tue, Jan 6, priced at $409 found 3 days ago
United
Wed, Dec 31 - Tue, Jan 13
MCI
Kansas City
RKS
Rock Springs
$422 Roundtrip, found 6 days ago
$422
Roundtrip
found 6 days ago
Select United flight, departing Wed, Dec 31 from Kansas City to Rock Springs, returning Tue, Jan 13, priced at $422 found 6 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 $480
RKS
Sweetwater County
CheapestClosest
Average driving time to city center14 min
Flights from $480
Flights from Kansas City (MCI) to Rock Springs (RKS)
Origin airport
Kansas City Intl.
Destination airport
Sweetwater County
Airlines serving
United
Roundtrip price
$308
Distance
770 mi

Kansas City to Rock Springs Flights

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

 

The best time to book a flight from Kansas City to Rock Springs

Sunday is one of the best days to book for cheap flights from Kansas City 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 Kansas City 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 Kansas City to Rock Springs in 2026. You can also book with separate airlines for your outbound and return journeys, from $268 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 Kansas City 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 Kansas City 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.

 

Frequently asked questions

How much does a flight from Kansas City Intl. Airport (MCI) to Sweetwater County Airport (RKS) cost?
Secure a cheap one-way flight from $268 or cheap return flight from $308 from Kansas City Intl. Airport (MCI) to Sweetwater County Airport (RKS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Kansas City Intl. Airport (MCI) to Sweetwater County Airport (RKS)?
The cheapest month to fly from MCI to RKS is January, when demand is low. Off-peak season is generally when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Kansas City Intl. Airport (MCI) to Sweetwater County Airport (RKS)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from MCI to RKS. Then, sort your results by "Price (lowest to highest)" to snag a good deal.
How many flights per day from Kansas City Intl. Airport (MCI) to Sweetwater County Airport (RKS)?
There are no daily direct flights departing from Kansas City Intl. Airport (MCI) to Sweetwater County Airport (RKS). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from MCI to RKS?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Kansas City Intl. Airport (MCI) to Sweetwater County Airport (RKS)?
To touch down at Sweetwater County Airport (RKS) on time, choose a flight that takes off from Kansas City Intl. Airport (MCI) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Kansas City Intl. Airport (MCI) to Sweetwater County Airport (RKS) last-minute?
Holding off until right before your break to book a flight from MCI to RKS generally means paying more. While you might find some last-minute discounts, they're not always guaranteed. Be flexible with your itinerary to maximize your chances of scoring a bargain.
Is it cheaper to book a MCI to RKS flight and hotel package?
Opting for a MCI to RKS flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Select from our wide range of accommodations and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Kansas City Intl. Airport (MCI) to Sweetwater County Airport (RKS)?
In most instances, you're able to cancel or reschedule your MCI to RKS flight. However, additional charges may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you want more details, go to our Customer Service portal.

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*Available to One Key members.