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$198+ Cheap flights from Rock Springs to Denver (RKS - DEN)

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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
RKS — DEN
Aug 26 — Sep 21
Tue 8/26
Tue 9/2
1 adult, Economy
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Cheap 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 21, 2025.

Round-trip from

$241
(United Airlines)

One-way from

$198
(United Airlines)

Popular in

May

Cheapest in

February

Average price

$240

Good round-trip deal

$363 or less

Good one-way deal

$382 or less
From Rock Springs Sweetwater County to Denver Intl
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One-way flight from Rock Springs Sweetwater County to Denver Intl
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Highest demand for flights based on searches. 12% potential increase in price ($40 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 August 2025
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Price to beat on a round-trip flight from Rock Springs Sweetwater County to Denver Intl.
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Price to beat on a one-way flight from Rock Springs Sweetwater County to Denver Intl.
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Find 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 21, 2025.

This United Airlines deal was found by Cheapflights users on 8/21. 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 9/51:58 pmRKS - DEN
Nonstop1h 14mUnited Airlines
Tue 9/99:04 pmDEN - RKS
Nonstop1h 07mUnited Airlines
Deal found 8/21$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.
Thu 9/41:58 pmRKS - DEN
Nonstop1h 14mUnited Airlines
Mon 9/89:04 pmDEN - RKS
Nonstop1h 07mUnited Airlines
Deal found 8/20$261
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 8/311:58 pmRKS - DEN
Nonstop1h 14mUnited Airlines
Sun 9/712:10 pmDEN - RKS
Nonstop1h 13mUnited Airlines
Deal found 8/20$291
This United Airlines deal was found by Cheapflights users on 8/21. 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 11/275:15 amRKS - DEN
Nonstop1h 31mUnited Airlines
Mon 12/112:10 pmDEN - RKS
Nonstop1h 11mUnited Airlines
Deal found 8/21$318
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.
Fri 8/221:58 pmRKS - DEN
Nonstop1h 14mUnited Airlines
Wed 8/2712:10 pmDEN - RKS
Nonstop1h 13mUnited Airlines
Deal found 8/20$341
This United Airlines deal was found by Cheapflights users on 8/21. 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 11/265:15 amRKS - DEN
Nonstop1h 31mUnited Airlines
Sun 11/308:49 pmDEN - RKS
Nonstop1h 10mUnited Airlines
Deal found 8/21$368
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.
Tue 9/165:45 amRKS - DEN
Nonstop1h 09mUnited Airlines
Sat 9/2012:10 pmDEN - RKS
Nonstop1h 13mUnited Airlines
Deal found 8/20$395
This United Airlines deal was found by Cheapflights users on 8/21. 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 10/35:15 amRKS - DEN
Nonstop1h 09mUnited Airlines
Mon 10/612:10 pmDEN - RKS
Nonstop1h 13mUnited Airlines
Deal found 8/21$418
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.
Mon 9/11:58 pmRKS - DEN
Nonstop1h 14mUnited Airlines
Sat 9/69:04 pmDEN - RKS
Nonstop1h 07mUnited Airlines
Deal found 8/20$495
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 8/275:45 amRKS - DEN
Nonstop1h 09mUnited Airlines
Fri 8/299:04 pmDEN - RKS
Nonstop1h 07mUnited Airlines
Deal found 8/19$595
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.
Tue 8/265:45 amRKS - DEN
Nonstop1h 09mUnited Airlines
Wed 8/2712:10 pmDEN - RKS
Nonstop1h 13mUnited Airlines
Deal found 8/20$695
This United Airlines deal was found by Cheapflights users on 8/21. 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 8/211:58 pmRKS - DEN
Nonstop1h 14mUnited Airlines
Fri 8/229:04 pmDEN - RKS
Nonstop1h 07mUnited Airlines
Deal found 8/21$795

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

Fly from

Rock Springs

Fly to

Denver

Route

Depart

Return

Price

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Fri 9/5

1:58 pm-3:12 pm

Nonstop1h 14m

Denver Intl

Tue 9/9

9:04 pm-10:11 pm

Nonstop1h 07m

$241

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Mon 10/13

2:00 pm-3:14 pm

Nonstop1h 14m

Denver Intl

Mon 10/27

12:10 pm-1:21 pm

Nonstop1h 11m

$241

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Thu 10/16

5:15 am-6:24 am

Nonstop1h 09m

Denver Intl

Thu 10/23

12:10 pm-1:23 pm

Nonstop1h 13m

$241

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Mon 9/15

5:45 am-6:54 am

Nonstop1h 09m

Denver Intl

Wed 9/24

12:10 pm-1:23 pm

Nonstop1h 13m

$261

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Thu 9/4

1:58 pm-3:12 pm

Nonstop1h 14m

Denver Intl

Mon 9/8

9:04 pm-10:11 pm

Nonstop1h 07m

$261

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Tue 9/30

5:15 am-6:24 am

Nonstop1h 09m

Denver Intl

Tue 10/7

12:10 pm-1:23 pm

Nonstop1h 13m

$261

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Fri 9/5

5:45 am-6:54 am

Nonstop1h 09m

Denver Intl

Sun 9/7

9:04 pm-10:11 pm

Nonstop1h 07m

$261

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Sun 8/31

1:58 pm-3:12 pm

Nonstop1h 14m

Denver Intl

Sun 9/7

12:10 pm-1:23 pm

Nonstop1h 13m

$291

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Thu 11/27

5:15 am-6:46 am

Nonstop1h 31m

Denver Intl

Mon 12/1

12:10 pm-1:21 pm

Nonstop1h 11m

$318

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Sat 12/13

5:15 am-6:46 am

Nonstop1h 31m

Denver Intl

Mon 12/15

12:10 pm-1:21 pm

Nonstop1h 11m

$318

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/20

Showing 1-10 of 14 results
1
2

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 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 21, 2025.

It’s optimal to fly from Rock Springs to Denver at noon. By choosing this option you can save up to 21% on the cost of your flight, compared to a flight in the morning.

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

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 21, 2025.
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
8,934 reviews

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

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
8,934 reviews
United Airlines
7.4
Good
8,934 reviews

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

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 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 09m.

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

    The Rock Springs Sweetwater County to Denver Intl flight path was viewed by 5 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 14m. United Airlines provides one of the quickest options available for as low as $241. 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 $220, was found to be the cheapest airline from Rock Springs to Denver.. United Airlines is currently priced 23% below the average price you’ll pay for this route.

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

    Consider Copa Airlines (92%), SkyWest Airlines (68%) or United Airlines (68%) 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 $202. On average you can expect to pay $451. The most popular route, (Rock Springs Sweetwater County - Denver Intl), can usually be booked for $241.

  • 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, October is the cheapest month in which you can book a flight from Rock Springs to Denver (average of $197). Flying from Rock Springs to Denver in March is currently the most expensive (average of $278). 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
Westminster
Black Hawk
Golden
Winter Park
Greeley
Lone Tree
Lakewood
Cripple Creek
Thornton
Broomfield
Silverthorne
Frisco
Manitou Springs
Grand Lake
Fort Morgan
Glendale
Wheat Ridge
Brighton
Longmont
Idaho Springs

Browse thousands of different options on Cheapflights for your next trip

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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 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$220Average$240FlexibilityNo cancel feeOn-time69%

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