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Rock Springs

$241+ Cheap flights from Denver to Rock Springs (DEN - RKS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — RKS
Aug 26 — Sep 21
Tue 8/26
Tue 9/2
1 adult, Economy
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Cheap flight deals from Denver to Rock Springs

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Rock Springs (RKS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 21, 2025.

Round-trip from

$241
(United Airlines)

Good round-trip deal

$678 or less

Good one-way deal

$397 or less
From Denver Intl to Rock Springs Sweetwater County
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Price to beat on a round-trip flight from Denver Intl to Rock Springs Sweetwater County.
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Price to beat on a one-way flight from Denver Intl to Rock Springs Sweetwater County.
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Find flight deals from Denver to Rock Springs

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

This United Airlines deal was found by Cheapflights users on 8/19. 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.
Wed 9/312:10 pmDEN - RKS
Nonstop1h 13mUnited Airlines
Sun 9/71:58 pmRKS - DEN
Nonstop1h 14mUnited Airlines
Deal found 8/19$241
This United Airlines deal was found by Cheapflights users on 8/20. 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.
Sun 9/79:04 pmDEN - RKS
Nonstop1h 07mUnited Airlines
Thu 9/181:58 pmRKS - DEN
Nonstop1h 14mUnited Airlines
Deal found 8/20$261
This United Airlines deal was found by Cheapflights users on 8/18. 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.
Tue 8/2612:10 pmDEN - RKS
Nonstop1h 13mUnited Airlines
Tue 9/25:45 amRKS - DEN
Nonstop1h 09mUnited Airlines
Deal found 8/18$291
This United Airlines deal was found by Cheapflights users on 8/19. 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 10/39:00 pmDEN - RKS
Nonstop1h 07mUnited Airlines
Fri 10/102:00 pmRKS - DEN
Nonstop1h 14mUnited Airlines
Deal found 8/19$318
This United Airlines deal was found by Cheapflights users on 8/19. 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 8/199:04 pmDEN - RKS
Nonstop1h 07mUnited Airlines
Wed 8/271:58 pmRKS - DEN
Nonstop1h 14mUnited Airlines
Deal found 8/19$341
This United Airlines deal was found by Cheapflights users on 8/20. 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.
Sun 9/289:00 pmDEN - RKS
Nonstop1h 07mUnited Airlines
Sat 10/45:15 amRKS - DEN
Nonstop1h 09mUnited Airlines
Deal found 8/20$395
This United Airlines deal was found by Cheapflights users on 8/20. 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.
Sun 9/2812:10 pmDEN - RKS
Nonstop1h 13mUnited Airlines
Fri 10/32:00 pmRKS - DEN
Nonstop1h 14mUnited Airlines
Deal found 8/20$495

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver 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 August 21, 2025.
Use the filters below to find and compare flights from Denver to Rock Springs that are best for you.

Fly from

Denver

Fly to

Rock Springs

Route

Depart

Return

Price

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Wed 9/3

12:10 pm-1:23 pm

Nonstop1h 13m

Rock Springs Sweetwater County

Sun 9/7

1:58 pm-3:12 pm

Nonstop1h 14m

$241

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Fri 9/5

12:10 pm-1:23 pm

Nonstop1h 13m

Rock Springs Sweetwater County

Tue 9/9

1:58 pm-3:12 pm

Nonstop1h 14m

$241

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Sun 9/7

9:04 pm-10:11 pm

Nonstop1h 07m

Rock Springs Sweetwater County

Thu 9/18

1:58 pm-3:12 pm

Nonstop1h 14m

$261

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Fri 10/3

9:00 pm-10:07 pm

Nonstop1h 07m

Rock Springs Sweetwater County

Fri 10/10

2:00 pm-3:14 pm

Nonstop1h 14m

$318

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Fri 10/3

9:00 pm-10:07 pm

Nonstop1h 07m

Rock Springs Sweetwater County

Sat 10/4

2:18 pm-3:32 pm

Nonstop1h 14m

$395

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Tue 9/30

9:00 pm-10:07 pm

Nonstop1h 07m

Rock Springs Sweetwater County

Sat 10/4

2:18 pm-3:32 pm

Nonstop1h 14m

$395

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Mon 9/22

9:04 pm-10:11 pm

Nonstop1h 07m

Rock Springs Sweetwater County

Fri 9/26

2:00 pm-3:14 pm

Nonstop1h 14m

$395

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Sun 9/28

9:00 pm-10:07 pm

Nonstop1h 07m

Rock Springs Sweetwater County

Mon 9/29

5:15 am-6:24 am

Nonstop1h 09m

$395

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Mon 10/13

9:00 pm-10:07 pm

Nonstop1h 07m

Rock Springs Sweetwater County

Thu 10/16

5:15 am-6:24 am

Nonstop1h 09m

$395

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Tue 9/30

12:10 pm-1:23 pm

Nonstop1h 13m

Rock Springs Sweetwater County

Thu 10/2

2:00 pm-3:14 pm

Nonstop1h 14m

$395

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/21

Showing 1-10 of 14 results
1
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Best time to book a flight from Denver to Rock Springs

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

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

Find hourly flight availability from Denver 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 August 21, 2025.

It’s typically best to fly out from Denver to Rock Springs in the morning. Doing so could potentially save you 15% on the flight price compared to flying at noon, which is usually more expensive.

Reviews of airlines servicing Rock Springs

Get insights into the airlines that provide service to Rock Springs. 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 Rock Springs. Reviews last updated August 21, 2025.
Read through reviews of airlines operating flights from Denver to Rock Springs, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,930 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,930 reviews
United Airlines
7.4
Good
8,930 reviews

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from Denver 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 airports do I use to fly from Denver to Rock Springs?

    Rock Springs Sweetwater County is the airport most travelers will use when flying to Rock Springs from Denver Intl. Booking flights from Denver Intl (DEN) to Sweetwater County (RKS) should be relatively easy as there are 2 daily flights to Rock Springs from 1 airline. 1h 07m is how long a flight from Denver to Rock Springs Sweetwater County will take if you book a nonstop flight.

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

    For as low as $241, United Airlines can have you in Rock Springs from Denver in 1h 13m. Airlines will cover a distance of 259 mi. Generally, flights for this route are nonstop.

  • What is the cheapest airline to fly from Denver to Rock Springs round-trip?

    Our cheapest airline available from Denver to Rock Springs is United Airlines. Our recent data shows that you can find tickets from as low as $220 on this airline.

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

    Before booking your flight to Rock Springs from Denver, check out the most reliable airlines to get you to your destination on time: SkyWest Airlines (61%), United Airlines (61%), Copa Airlines( 48%).

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

    On average you can expect to pay $629 for a flight from Denver to Rock Springs. The cheapest flight overall is $197 while the most popular route, (Denver Intl - Rock Springs Sweetwater County) is currently priced at $261.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Denver 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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Top airline flying from Denver to Rock Springs

Discover the top airline that operate flights from Denver to Rock Springs. 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 August 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$220Average$357FlexibilityNo cancel feeOn-time69%

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