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Rock Springs

$261+ 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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — RKS
Aug 21 — Aug 281
Fri 8/21
Fri 8/28
1 adult, Economy
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Cheap 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 July 22, 2026.

This United Airlines deal was found by Cheapflights users on 7/21. 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.
Wed 8/59:13 pm
DEN
-
RKS
Nonstop1h 10m
United Airlines
Sun 8/95:05 am
RKS
-
DEN
Nonstop1h 13m
United Airlines
Deal found 7/21$261
This United Airlines deal was found by Cheapflights users on 7/21. 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.
Thu 9/179:10 pm
DEN
-
RKS
Nonstop1h 11m
United Airlines
Sun 9/205:05 am
RKS
-
DEN
Nonstop1h 18m
United Airlines
Deal found 7/21$281
This United Airlines deal was found by Cheapflights users on 7/21. 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 7/2412:15 pm
DEN
-
RKS
Nonstop1h 16m
United Airlines
Tue 7/285:05 am
RKS
-
DEN
Nonstop1h 13m
United Airlines
Deal found 7/21$361
This United Airlines deal was found by Cheapflights users on 7/20. 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.
Wed 8/59:13 pm
DEN
-
RKS
Nonstop1h 10m
United Airlines
Sat 8/85:05 am
RKS
-
DEN
Nonstop1h 13m
United Airlines
Deal found 7/20$395

Find 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 July 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$261
(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.
Search Deals
From Denver Intl to Rock Springs Sweetwater County
Search Deals

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 July 22, 2026.
Use the filters below to find and compare flights from Denver to Rock Springs that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Thu 9/17

9:10 pm-10:21 pm

Nonstop1h 11m

Rock Springs Sweetwater County

Mon 9/21

2:22 pm-3:40 pm

Nonstop1h 18m

$261

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Tue 8/18

12:35 pm-1:47 pm

Nonstop1h 12m

Rock Springs Sweetwater County

Mon 8/24

5:05 am-6:23 am

Nonstop1h 18m

$261

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Thu 9/17

9:10 pm-10:21 pm

Nonstop1h 11m

Rock Springs Sweetwater County

Sun 9/20

5:05 am-6:23 am

Nonstop1h 18m

$281

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Thu 9/17

9:10 pm-10:21 pm

Nonstop1h 11m

Rock Springs Sweetwater County

Fri 9/18

5:05 am-6:23 am

Nonstop1h 18m

$395
Quickest round-trip

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Wed 8/5

9:13 pm-10:23 pm

Nonstop1h 10m

Rock Springs Sweetwater County

Sat 8/8

5:05 am-6:18 am

Nonstop1h 13m

$395

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Mon 8/3

12:15 pm-1:31 pm

Nonstop1h 16m

Rock Springs Sweetwater County

Fri 8/7

5:05 am-6:18 am

Nonstop1h 13m

$395

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Sun 8/2

9:13 pm-10:23 pm

Nonstop1h 10m

Rock Springs Sweetwater County

Thu 8/6

2:16 pm-3:40 pm

Nonstop1h 24m

$395

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Tue 8/4

12:15 pm-1:31 pm

Nonstop1h 16m

Rock Springs Sweetwater County

Sat 8/8

5:05 am-6:18 am

Nonstop1h 13m

$395
Cheapest one-way
Quickest one-way

DenverRock Springs

DEN - RKS

DENRKS

Denver Intl

Tue 7/28

9:13 pm-10:23 pm

Nonstop1h 10m

$398

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/22

Sorted by cheapest first

Compare providers for flights from Denver to Rock Springs

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Rock Springs in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Denver-Rock Springs flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Rock Springs flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Rock Springs flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Rock Springs flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Rock Springs flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 July 22, 2026.

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

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 July 22, 2026.
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
10,020 reviews

Boarding

7.7

Food

6.7

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
10,020 reviews
United Airlines
7.4
Good
10,020 reviews

Boarding

7.7

Food

6.7

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

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 3 daily flights to Rock Springs from 1 airline. 1h 11m 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 $261, United Airlines can have you in Rock Springs from Denver in 1h 11m. 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 $240 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: Copa Airlines (79%), SkyWest Airlines (67%), United Airlines( 67%).

  • 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

Traveling to a place near Rock Springs?

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

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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 July 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$240Average$594FlexibilityNo cancel feeOn-time69%

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