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$198+ Cheap flights from Rock Springs (RKS) to Colorado

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
RKS — DEN
Nov 20 — Nov 271
Thu 11/20
Thu 11/27
1 adult, Economy
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Cheap flight deals from Rock Springs to Colorado

Keep the following information in mind while searching for Rock Springs to Colorado flight deals. Data was last updated October 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$208
(United Airlines)

One-way from

$198
(United Airlines)

Popular in

May

Cheapest in

February

Average price

$260

Good round-trip deal

$313 or less

Good one-way deal

$314 or less
Provider with most accurate pricing for Rock Springs Sweetwater County-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Rock Springs Sweetwater County-Denver Intl flights.
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From Rock Springs Sweetwater County to Colorado
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One-way flight from Rock Springs Sweetwater County to Colorado
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Highest demand for flights based on searches. 7% potential increase in price ($23 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Rock Springs Sweetwater County to Colorado.
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Price to beat on a one-way flight from Rock Springs Sweetwater County to Colorado.
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Find flight deals from Rock Springs to Colorado

Cheapest flights from Rock Springs to Colorado
Explore the most affordable flight options available from Rock Springs to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 21, 2025.

This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/232:18 pmRKS - COS
1 stop5h 28mUnited Airlines
Mon 12/296:23 pmCOS - RKS
1 stop3h 36mUnited Airlines
Deal found 10/19$208
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/71:56 pmRKS - DEN
Nonstop1h 24mUnited Airlines
Mon 11/108:49 pmDEN - RKS
Nonstop1h 10mUnited Airlines
Deal found 10/20$241
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/115:15 amRKS - DEN
Nonstop1h 31mUnited Airlines
Mon 11/178:49 pmDEN - RKS
Nonstop1h 10mUnited Airlines
Deal found 10/19$261
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/285:15 amRKS - DEN
Nonstop1h 31mUnited Airlines
Tue 11/412:10 pmDEN - RKS
Nonstop1h 11mUnited Airlines
Deal found 10/19$291
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/245:15 amRKS - DEN
Nonstop1h 09mUnited Airlines
Sun 10/268:49 pmDEN - RKS
Nonstop1h 10mUnited Airlines
Deal found 10/21$341
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/165:15 amRKS - DEN
Nonstop1h 31mUnited Airlines
Thu 11/2012:10 pmDEN - RKS
Nonstop1h 11mUnited Airlines
Deal found 10/19$395
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/141:56 pmRKS - DEN
Nonstop1h 24mUnited Airlines
Sun 11/168:49 pmDEN - RKS
Nonstop1h 10mUnited Airlines
Deal found 10/19$418
This United Airlines deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/145:15 amRKS - DEN
Nonstop1h 31mUnited Airlines
Sat 11/1512:10 pmDEN - RKS
Nonstop1h 11mUnited Airlines
Deal found 10/19$495
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/261:56 pmRKS - DEN
Nonstop1h 24mUnited Airlines
Mon 10/278:49 pmDEN - RKS
Nonstop1h 10mUnited Airlines
Deal found 10/18$595
This United Airlines deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/202:00 pmRKS - DEN
Nonstop1h 14mUnited Airlines
Tue 10/219:00 pmDEN - RKS
Nonstop1h 07mUnited Airlines
Deal found 10/20$795

Cheapflights Fare Finder

 
Customize your flight search to find flights from Rock Springs to Colorado 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, Cheapflights users made 2,558,603 searches. Data last updated October 21, 2025.
Use the filters below to find and compare flights from Rock Springs to Colorado that are best for you.

Fly from

Rock Springs

Fly to

Colorado

Route

Depart

Return

Price

Rock SpringsColorado Springs

RKS - COS

RKSCOS

Rock Springs Sweetwater County

Tue 12/23

2:18 pm-7:46 pm

1 stop5h 28m

Colorado Springs

Mon 12/29

6:23 pm-9:59 pm

1 stop3h 36m

$208

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Fri 11/7

5:15 am-6:46 am

Nonstop1h 31m

Denver Intl

Fri 11/14

12:10 pm-1:21 pm

Nonstop1h 11m

$241

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Fri 11/7

1:56 pm-3:20 pm

Nonstop1h 24m

Denver Intl

Mon 11/10

8:49 pm-9:59 pm

Nonstop1h 10m

$241

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Mon 11/17

5:15 am-6:46 am

Nonstop1h 31m

Denver Intl

Mon 11/24

12:10 pm-1:21 pm

Nonstop1h 11m

$241

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Tue 1/27

2:08 pm-3:34 pm

Nonstop1h 26m

Denver Intl

Wed 2/4

9:00 pm-10:15 pm

Nonstop1h 15m

$241

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Wed 11/12

1:56 pm-3:20 pm

Nonstop1h 24m

Denver Intl

Mon 11/17

8:49 pm-9:59 pm

Nonstop1h 10m

$261

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Tue 11/11

5:15 am-6:46 am

Nonstop1h 31m

Denver Intl

Sun 11/16

8:49 pm-9:59 pm

Nonstop1h 10m

$261

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Thu 11/13

1:56 pm-3:20 pm

Nonstop1h 24m

Denver Intl

Sun 11/16

8:49 pm-9:59 pm

Nonstop1h 10m

$261

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Wed 11/12

5:15 am-6:46 am

Nonstop1h 31m

Denver Intl

Thu 11/20

12:10 pm-1:21 pm

Nonstop1h 11m

$261

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Tue 11/11

1:56 pm-3:20 pm

Nonstop1h 24m

Denver Intl

Thu 11/20

8:49 pm-9:59 pm

Nonstop1h 10m

$261

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/19

Showing 1-10 of 17 results
1
2

Best time to book a flight from Rock Springs to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado from Rock Springs with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Rock Springs to Colorado

What is the cheapest time of day to fly from RKS to CO?

Find hourly flight availability from Rock Springs to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 21, 2025.

When flying from Rock Springs to Colorado, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Colorado. Reviews last updated October 21, 2025.
Peruse reviews from past customers who have flown with United Airlines from Rock Springs to Colorado to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,991 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,991 reviews
United Airlines
7.4
Good
8,991 reviews

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Food

6.6

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Related info for your journey

Find useful and relevant information for your journey from Rock Springs to Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Rock Springs to Colorado?

    For a flight from Rock Springs to Colorado, you will be flying from Sweetwater County. Rock Springs Sweetwater County (RKS) is just 7.1 mi from the center of the city.

  • How popular is this Rock Springs to Colorado flight route?

    Flights from Rock Springs Sweetwater County to Colorado have been viewed 10 times in the past calendar month.

  • How long is the flight from Rock Springs to Colorado?

    United Airlines can get you from Rock Springs to Colorado in just under 5h 28m. Your travel time can differ by up to . Airlines will cover a distance of 300 mi.

  • What are the most reliable airlines from Rock Springs to Colorado?

    No one likes to see their flight delayed. When booking a flight from Rock Springs to Colorado consider choosing Copa Airlines (82%), SkyWest Airlines (71%) or United Airlines (71%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Rock Springs to Colorado?

    While on average a flight from Rock Springs to Colorado is generally $410, our data shows the cheapest flight currently is $258. When looking at the most popular route, (Rock Springs Sweetwater County - Denver Intl), you can expect to pay $241 for that flight.

  • Can I find deals for flights from Rock Springs to Colorado that include hotel bookings?

    Yes. In addition to deals on Rock Springs to Colorado flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Rock Springs to Colorado?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Rock Springs to Colorado.

  • Can I find deals for business class flights from Rock Springs to Colorado?

    Yes. Cheapflights offers flight deals from Rock Springs to Colorado by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top airline flying from Rock Springs to Colorado

Discover the top airline that operate flights from Rock Springs to Colorado. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$240Average$260FlexibilityNo cancel feeOn-time69%

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