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$261+ Cheap flights from Rock Springs to Denver (RKS - DEN)

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 8/29. Fares are subject to change and may not be available on all flights or dates of travel.
RKS — DEN
Sep 4 — Sep 111
Fri 9/4
Fri 9/11
1 adult, Economy
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Cheap flight deals from Rock Springs to Denver

Cheapest flights from Rock Springs to Denver
Explore the most affordable flight options available from Rock Springs to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 5, 2026.

This United Airlines deal was found by Cheapflights users on 8/3. 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 8/292:35 pm -
Nonstop1h 16m
Sat 9/512:48 pm -
Nonstop1h 12m
Deal found 8/3$261
This United Airlines deal was found by Cheapflights users on 8/2. 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 10/52:22 pm -
Nonstop1h 18m
Sun 10/1112:30 pm -
Nonstop1h 12m
Deal found 8/2$281
This United Airlines deal was found by Cheapflights users on 8/2. 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 8/312:35 pm -
Nonstop1h 16m
Mon 9/79:10 pm -
Nonstop1h 11m
Deal found 8/2$283
This United Airlines deal was found by Cheapflights users on 7/31. 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 8/35:05 am -
Nonstop1h 13m
Sat 9/512:48 pm -
Nonstop1h 12m
Deal found 7/31$311
This United Airlines deal was found by Cheapflights users on 8/1. 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 12/262:05 pm -
Nonstop1h 28m
Sat 1/28:46 pm -
Nonstop1h 15m
Deal found 8/1$324
This United Airlines deal was found by Cheapflights users on 7/31. 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 8/15:05 am -
Nonstop1h 13m
Mon 8/39:13 pm -
Nonstop1h 10m
Deal found 7/31$361
This United Airlines deal was found by Cheapflights users on 8/2. 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 10/112:22 pm -
Nonstop1h 18m
Thu 10/159:10 pm -
Nonstop1h 11m
Deal found 8/2$395
This United Airlines deal was found by Cheapflights users on 8/3. 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 8/85:05 am -
Nonstop1h 13m
Sun 8/99:13 pm -
Nonstop1h 10m
Deal found 8/3$578
This United Airlines deal was found by Cheapflights users on 8/4. 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 8/115:05 am -
Nonstop1h 18m
Wed 8/129:10 pm -
Nonstop1h 11m
Deal found 8/4$595
This United Airlines deal was found by Cheapflights users on 8/4. 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 8/75:05 am -
Nonstop1h 13m
Sun 8/99:13 pm -
Nonstop1h 10m
Deal found 8/4$657
This United Airlines deal was found by Cheapflights users on 8/4. 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 8/102:16 pm -
Nonstop1h 24m
Wed 8/129:10 pm -
Nonstop1h 11m
Deal found 8/4$695
This United Airlines deal was found by Cheapflights users on 7/31. 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 8/32:16 pm -
Nonstop1h 24m
Mon 8/39:13 pm -
Nonstop1h 10m
Deal found 7/31$795

Find flight deals from Rock Springs to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Rock Springs (RKS) to Denver (DEN). 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 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$261
(United Airlines)

Popular in

August

Cheapest in

April

Average price

$427

Good round-trip deal

$360 or less

Good one-way deal

$303 or less
Provider with most accurate pricing for Rock Springs Sweetwater County-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Rock Springs Sweetwater County-Denver Intl flights.
Search Deals
From Rock Springs Sweetwater County to Denver Intl
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Rock Springs Sweetwater County to Denver Intl.
Search Deals
Price to beat on a one-way flight from Rock Springs Sweetwater County to Denver Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Rock Springs to Denver 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 5, 2026.
Use the filters below to find and compare flights from Rock Springs to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Sat 8/29

2:35 pm-3:51 pm

Nonstop1h 16m

Denver Intl

Sat 9/5

12:48 pm-2:00 pm

Nonstop1h 12m

$261

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Thu 12/24

2:05 pm-3:33 pm

Nonstop1h 28m

Denver Intl

Mon 12/28

8:46 pm-10:01 pm

Nonstop1h 15m

$261

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Sat 10/17

2:22 pm-3:40 pm

Nonstop1h 18m

Denver Intl

Sun 10/18

9:10 pm-10:21 pm

Nonstop1h 11m

$261
Quickest round-trip

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Fri 8/28

2:35 pm-3:51 pm

Nonstop1h 16m

Denver Intl

Wed 9/2

9:10 pm-10:21 pm

Nonstop1h 11m

$261

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Sat 8/15

2:35 pm-3:53 pm

Nonstop1h 18m

Denver Intl

Wed 8/19

9:10 pm-10:21 pm

Nonstop1h 11m

$261

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Sat 10/31

5:00 am-6:25 am

Nonstop1h 25m

Denver Intl

Wed 11/4

9:10 pm-10:20 pm

Nonstop1h 10m

$281

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Tue 10/6

5:05 am-6:23 am

Nonstop1h 18m

Denver Intl

Thu 10/15

9:10 pm-10:21 pm

Nonstop1h 11m

$281

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Mon 10/5

2:22 pm-3:40 pm

Nonstop1h 18m

Denver Intl

Tue 10/13

9:10 pm-10:21 pm

Nonstop1h 11m

$281

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Wed 10/7

5:05 am-6:23 am

Nonstop1h 18m

Denver Intl

Mon 10/12

9:10 pm-10:21 pm

Nonstop1h 11m

$281

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Mon 8/31

2:35 pm-3:51 pm

Nonstop1h 16m

Denver Intl

Mon 9/7

9:10 pm-10:21 pm

Nonstop1h 11m

$283

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/2

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

Compare providers for flights from Rock Springs to Denver

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 Rock Springs to Denver in August.
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 Rock Springs-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Rock Springs-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Rock Springs-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Rock Springs-Denver 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 Rock Springs-Denver 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 Rock Springs to Denver

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

What is the cheapest month to book a flight from Rock Springs to Denver?

Currently, April is the cheapest month in which you can book a flight from Rock Springs to Denver (average of $260). Flying from Rock Springs to Denver in August is currently the most expensive (average of $427). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Find hourly flight availability from Rock Springs to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 5, 2026.

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

How much does it cost to fly round-trip from Rock Springs to Denver?

Airfare is typical for this route at the moment.

Rock Springs to Denver flights typically cost between $260 and $427 in August.
The cheapest round-trip price found within the last 5 days was $261 on United Airlines (Aug 29-Sep 5).

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated August 5, 2026.
Get a feel of what it's like to fly with United Airlines from Rock Springs to Denver by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,060 reviews

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Food

6.7

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
United Airlines
7.4
Good
10,060 reviews
United Airlines
7.4
Good
10,060 reviews

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Food

6.7

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible

Related info for your journey

Find useful and relevant information for your journey from Rock Springs to Denver. 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 Rock Springs to Denver?

    You will need to book a flight from Rock Springs Sweetwater County to Denver Intl if you want to fly from Rock Springs to Denver. At least 1 airline has flights from Sweetwater County (RKS) to Denver Intl (DEN) on a regular basis. There are 3 flights to Denver from the Rock Springs airport per day. If you manage to book one that is nonstop, then you can expect the flight time from RKS to DEN to be around 1h 13m.

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

    The Rock Springs Sweetwater County to Denver Intl flight path was viewed by 13 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    A quick flight from Rock Springs to Denver can take about 1h 16m. United Airlines provides one of the quickest options available for as low as $261. The distance from Rock Springs to Denver is about 259 mi. All flights are typically nonstop.

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

    United Airlines, at $240, was found to be the cheapest airline from Rock Springs to Denver.. United Airlines is currently priced 27% below the average price you’ll pay for this route.

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

    Consider Copa Airlines (87%), SkyWest Airlines (82%) or United Airlines (82%) when booking your flight. These represent the most reliable airlines when flying from Rock Springs to Denver.

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

    The cheapest flight price from Rock Springs to Denver is $244. On average you can expect to pay $453. The most popular route, (Rock Springs Sweetwater County - Denver Intl), can usually be booked for $261.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Rock Springs to Denver?

    Currently, April is the cheapest month in which you can book a flight from Rock Springs to Denver (average of $260). Flying from Rock Springs to Denver in August is currently the most expensive (average of $427). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Thornton
Westminster
Black Hawk
Centennial
Lakewood
Broomfield
Golden
Lone Tree
Wheat Ridge
Silverthorne
Central City
Fort Morgan
Cripple Creek
Greeley
Winter Park
Limon
Manitou Springs
Frisco
Englewood
Glendale

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Rock Springs to Denver

Discover the top airline that operate flights from Rock Springs to Denver. 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 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$240Average$290FlexibilityNo cancel feeOn-time69%

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