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Cheap flights from Colorado to Rock Springs from $261

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Rock Springs departing on 2/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Colorado to Rock Springs

Cheap round-trip flights

United Airlines Logo
12:15 pm - 1:30 pmDEN-RKS
1h 15mnonstop
United Airlines Logo
5:25 am - 6:53 amRKS-DEN
1h 28mnonstop
$261United Airlines
Find Deal
Sat, Feb 21 - Tue, Feb 24
United Airlines Logo
9:00 pm - 10:07 pmDEN-RKS
1h 07mnonstop
United Airlines Logo
2:18 pm - 3:32 pmRKS-DEN
1h 14mnonstop
$395United Airlines
Find Deal
Tue, Oct 7 - Sat, Oct 11
United Airlines Logo
9:00 pm - 10:07 pmDEN-RKS
1h 07mnonstop
United Airlines Logo
5:15 am - 6:24 amRKS-DEN
1h 09mnonstop
$495United Airlines
Find Deal
Mon, Oct 6 - Fri, Oct 10

United Airlines flights from Colorado to Rock Springs

Our best United Airlines deals on Colorado to Rock Springs flight tickets
United Airlines
Feb 21
DEN12:15 pmDenver Intl
1h 15m
RKS1:30 pmRock Springs Sweetwater County
Feb 24
RKS5:25 amRock Springs Sweetwater County
1h 28m
DEN6:53 amDenver Intl
$261
Find similar
United Airlines
Sep 26
DEN9:00 pmDenver Intl
1h 07m
RKS10:07 pmRock Springs Sweetwater County
Sep 30
RKS2:00 pmRock Springs Sweetwater County
1h 14m
DEN3:14 pmDenver Intl
$341
Find similar
United Airlines
Oct 7
DEN9:00 pmDenver Intl
1h 07m
RKS10:07 pmRock Springs Sweetwater County
Oct 11
RKS2:18 pmRock Springs Sweetwater County
1h 14m
DEN3:32 pmDenver Intl
$395
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Colorado to Rock Springs that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 22, 2025.
Use the filters below to find and compare flights from Colorado to Rock Springs that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Sat 2/21

12:15 pm-1:30 pm

Nonstop1h 15m

Rock Springs Sweetwater County

Tue 2/24

5:25 am-6:53 am

Nonstop1h 28m

$261

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Tue 10/7

9:00 pm-10:07 pm

Nonstop1h 07m

Rock Springs Sweetwater County

Sat 10/11

2:18 pm-3:32 pm

Nonstop1h 14m

$395

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Mon 10/6

9:00 pm-10:07 pm

Nonstop1h 07m

Rock Springs Sweetwater County

Fri 10/10

5:15 am-6:24 am

Nonstop1h 09m

$495

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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How to get the cheapest flight ticket from Colorado to Rock Springs

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest time of day to depart on your flight to Rock Springs?

In the morning is the cheapest time of day to fly from Colorado to Rock Springs when you can find flight prices for as low as $240. Flying to Rock Springs in the morning is an ideal time because this is during off-peak travel hours. In the evening is when there is more demand to fly to Rock Springs, so prices are often more expensive at around $368 per ticket.

What is the cheapest Colorado to Rock Springs Sweetwater County flight route?

Fly from Denver Intl to Rock Springs Sweetwater County for the best Colorado - Rock Springs Sweetwater County flight prices

What cabin class options are available on Colorado to Rock Springs Sweetwater County flights?

There is only 1 cabin class available to choose from on Colorado to Rock Springs Sweetwater County flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Colorado to Rock Springs flights?

You could potentially save up to 7% on your flight if you consider stops on a Colorado to Rock Springs flight.

Cheap Colorado to Rock Springs flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Rock Springs

Fastest flight time

1h 07m

Direct flights

Tue, Fri and Sun

Airports in Rock Springs

1 airport
The fastest flight from Colorado to Rock Springs takes 1h 07m
Direct flights go from Colorado to Rock Springs on Tuesday, Friday and Sunday. There are no airlines offering direct flights.
There is 1 airport near Rock Springs: Rock Springs Sweetwater County (RKS)
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  • When did momondo last update prices for flights from Colorado to Rock Springs Sweetwater County Airport?

    Prices for flights from Colorado to Rock Springs Sweetwater County Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Colorado to Rock Springs Sweetwater County Airport?

  • How old do you have to be to fly from Colorado to Rock Springs Sweetwater County Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to Rock Springs Sweetwater County Airport.

  • What documentation or ID do you need to fly to Rock Springs Sweetwater County Airport?

    The travel and health documents required for your trip to Rock Springs Sweetwater County Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Rock Springs Sweetwater County Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Colorado to Rock Springs?

Best airlines flying from Colorado to Rock Springs

Compare and see reviews for airlines that fly from Colorado to Rock Springs with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $220Free CancellationRating
7.4
8,922 reviews
Search United Airlines flights

Traveling to a place near Rock Springs?

Book flights to Rock Springs if you plan to visit one of these locations
Green River

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Rock Springs?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Colorado to Rock Springs. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Colorado to Rock Springs with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Colorado to Rock Springs flights to just show those with flexible booking policies.

How can momondo help me find flights from Colorado to Rock Springs?

momondo provides multiple filters to help you find the best flight to Rock Springs from Colorado. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Colorado to Rock Springs right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Colorado to Rock Springs flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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