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Rock Springs

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

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 3/13. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — RKS
Mar 15 — Mar 221
Sun 3/15
Sun 3/22
1 adult, Economy
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Cheap flight deals from Colorado to Rock Springs

Cheapest flights from Colorado to Rock Springs
Explore the most affordable flight options available from Colorado to Rock Springs. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 13, 2026.

This United Airlines deal was found by Cheapflights users on 2/12. 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.
Thu 4/1612:15 pm
DEN
-
RKS
Nonstop1h 15m
United Airlines
Mon 4/202:15 pm
RKS
-
DEN
Nonstop1h 21m
United Airlines
Deal found 2/12$241
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Sat 2/2812:15 pm
DEN
-
RKS
Nonstop1h 18m
United Airlines
Wed 3/42:10 pm
RKS
-
DEN
Nonstop1h 30m
United Airlines
Deal found 2/9$261
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Sat 2/149:00 pm
DEN
-
RKS
Nonstop1h 13m
United Airlines
Mon 2/165:15 am
RKS
-
DEN
Nonstop1h 30m
United Airlines
Deal found 2/10$341
This United Airlines deal was found by Cheapflights users on 2/9. 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 2/2312:15 pm
DEN
-
RKS
Nonstop1h 18m
United Airlines
Fri 2/275:15 am
RKS
-
DEN
Nonstop1h 30m
United Airlines
Deal found 2/9$395
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Thu 2/1912:15 pm
DEN
-
RKS
Nonstop1h 18m
United Airlines
Sat 2/212:10 pm
RKS
-
DEN
Nonstop1h 30m
United Airlines
Deal found 2/10$595

Find flight deals from Colorado to Rock Springs

Keep the following information in mind while searching for Colorado to Rock Springs flight deals. Data was last updated February 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$241
(United Airlines)

One-way from

$198
(United Airlines)
Provider with most accurate pricing for Denver Intl-Rock Springs Sweetwater County flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Rock Springs Sweetwater County flights.
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From Colorado to Rock Springs Sweetwater County
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One-way flight from Colorado to Rock Springs Sweetwater County
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Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated February 13, 2026.
Use the filters below to find and compare flights from Colorado to Rock Springs that are best for you.

Fly from

Colorado

Fly to

Rock Springs

Route

Depart

Return

Price

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Thu 4/16

9:00 pm-10:15 pm

Nonstop1h 15m

Rock Springs Sweetwater County

Sun 4/19

5:15 am-6:36 am

Nonstop1h 21m

$241

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Thu 2/26

9:00 pm-10:13 pm

Nonstop1h 13m

Rock Springs Sweetwater County

Mon 3/2

5:15 am-6:45 am

Nonstop1h 30m

$241

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Fri 2/27

9:00 pm-10:13 pm

Nonstop1h 13m

Rock Springs Sweetwater County

Tue 3/3

2:10 pm-3:40 pm

Nonstop1h 30m

$241

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Thu 4/16

12:15 pm-1:30 pm

Nonstop1h 15m

Rock Springs Sweetwater County

Mon 4/20

2:15 pm-3:36 pm

Nonstop1h 21m

$241

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Sat 2/28

12:15 pm-1:33 pm

Nonstop1h 18m

Rock Springs Sweetwater County

Wed 3/4

2:10 pm-3:40 pm

Nonstop1h 30m

$261

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Thu 3/12

9:00 pm-10:13 pm

Nonstop1h 13m

Rock Springs Sweetwater County

Sat 3/14

5:15 am-6:45 am

Nonstop1h 30m

$395

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Mon 2/23

12:15 pm-1:33 pm

Nonstop1h 18m

Rock Springs Sweetwater County

Fri 2/27

5:15 am-6:45 am

Nonstop1h 30m

$395

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Thu 4/16

9:00 pm-10:15 pm

Nonstop1h 15m

Rock Springs Sweetwater County

Sat 4/18

5:15 am-6:36 am

Nonstop1h 21m

$395

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Fri 3/13

12:15 pm-1:33 pm

Nonstop1h 18m

$198

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Fri 2/20

9:00 pm-10:13 pm

Nonstop1h 13m

$298

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Best time to book a flight from Colorado to Rock Springs

Have a flexible travel schedule? Discover the best time to fly to Rock Springs from Colorado 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 Colorado to Rock Springs

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

Find hourly flight availability from Colorado to Rock Springs. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 13, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Colorado to Rock Springs as you normally would.

Weekly flight availability from Colorado to Rock Springs

Explore weekly flight availability from Colorado to Rock Springs. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 13, 2026.

The most flights from USCO to RKS are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

Related info for your journey

Find useful and relevant information for your journey from Colorado to Rock Springs. 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 into for flights to Rock Springs from Colorado?

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

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

    Airlines like United Airlines fly from Colorado to Rock Springs in about 1h 15m. The time it takes to get you to your destination is usually consistent. The distance between Colorado and Rock Springs is about 259 mi. Generally, flights for this route are nonstop.

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

    No one likes to see their flight delayed. When booking a flight from Colorado to Rock Springs consider choosing SkyWest Airlines (74%), United Airlines (74%) or Copa Airlines (70%) as they are the most reliable in getting you off to your destination on time.

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

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

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

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

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

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

See more FAQs

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