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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 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
RKS — DEN
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
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 March 10, 2026.

This United Airlines deal was found by Cheapflights users on 3/9. 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.
Fri 3/272:10 pm
RKS
-
DEN
Nonstop1h 30m
United Airlines
Fri 4/1012:15 pm
DEN
-
RKS
Nonstop1h 15m
United Airlines
Deal found 3/9$241
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Fri 4/175:15 am
RKS
-
DEN
Nonstop1h 21m
United Airlines
Mon 4/2012:15 pm
DEN
-
RKS
Nonstop1h 15m
United Airlines
Deal found 3/9$261
This United Airlines deal was found by Cheapflights users on 3/5. 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 3/202:10 pm
RKS
-
DEN
Nonstop1h 30m
United Airlines
Tue 3/2412:15 pm
DEN
-
RKS
Nonstop1h 18m
United Airlines
Deal found 3/5$262
This United Airlines deal was found by Cheapflights users on 3/5. 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 3/85:15 am
RKS
-
DEN
Nonstop1h 30m
United Airlines
Tue 3/249:00 pm
DEN
-
RKS
Nonstop1h 13m
United Airlines
Deal found 3/5$291
This United Airlines deal was found by Cheapflights users on 3/8. 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 6/42:16 pm
RKS
-
DEN
Nonstop1h 24m
United Airlines
Sun 6/149:05 pm
DEN
-
RKS
Nonstop1h 10m
United Airlines
Deal found 3/8$318
This United Airlines deal was found by Cheapflights users on 3/5. 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 3/132:10 pm
RKS
-
DEN
Nonstop1h 30m
United Airlines
Wed 3/189:00 pm
DEN
-
RKS
Nonstop1h 13m
United Airlines
Deal found 3/5$341
This United Airlines deal was found by Cheapflights users on 3/8. 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 6/42:16 pm
RKS
-
DEN
Nonstop1h 24m
United Airlines
Thu 6/1812:15 pm
DEN
-
RKS
Nonstop1h 16m
United Airlines
Deal found 3/8$368
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Fri 5/295:05 am
RKS
-
DEN
Nonstop1h 13m
United Airlines
Sat 5/3011:55 am
DEN
-
RKS
Nonstop1h 16m
United Airlines
Deal found 3/9$395
This United Airlines deal was found by Cheapflights users on 3/8. 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 6/255:05 am
RKS
-
DEN
Nonstop1h 13m
United Airlines
Thu 7/29:05 pm
DEN
-
RKS
Nonstop1h 10m
United Airlines
Deal found 3/8$418
This United Airlines deal was found by Cheapflights users on 3/8. 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 6/282:16 pm
RKS
-
DEN
Nonstop1h 24m
United Airlines
Thu 7/29:05 pm
DEN
-
RKS
Nonstop1h 10m
United Airlines
Deal found 3/8$495
This United Airlines deal was found by Cheapflights users on 3/7. 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 3/155:15 am
RKS
-
DEN
Nonstop1h 30m
United Airlines
Wed 3/189:00 pm
DEN
-
RKS
Nonstop1h 13m
United Airlines
Deal found 3/7$595
This United Airlines deal was found by Cheapflights users on 3/7. 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 3/112:10 pm
RKS
-
DEN
Nonstop1h 30m
United Airlines
Sat 3/1412:15 pm
DEN
-
RKS
Nonstop1h 18m
United Airlines
Deal found 3/7$695

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 March 10, 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)

Popular in

May

Cheapest in

April

Average price

$260

Good round-trip deal

$326 or less

Good one-way deal

$275 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
One-way flight from Rock Springs Sweetwater County to Denver Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 10, 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

Fri 3/27

2:10 pm-3:40 pm

Nonstop1h 30m

Denver Intl

Fri 4/10

12:15 pm-1:30 pm

Nonstop1h 15m

$241

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Wed 4/8

5:15 am-6:36 am

Nonstop1h 21m

Denver Intl

Wed 4/15

9:00 pm-10:15 pm

Nonstop1h 15m

$241
Quickest round-trip

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Fri 7/31

5:05 am-6:18 am

Nonstop1h 13m

Denver Intl

Mon 8/3

9:05 pm-10:15 pm

Nonstop1h 10m

$241

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Fri 4/17

2:15 pm-3:36 pm

Nonstop1h 21m

Denver Intl

Sun 4/19

9:00 pm-10:15 pm

Nonstop1h 15m

$241

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Fri 4/17

2:15 pm-3:36 pm

Nonstop1h 21m

Denver Intl

Mon 4/20

9:00 pm-10:15 pm

Nonstop1h 15m

$261

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Tue 4/7

5:15 am-6:36 am

Nonstop1h 21m

Denver Intl

Tue 4/14

12:15 pm-1:30 pm

Nonstop1h 15m

$261

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Thu 6/25

5:05 am-6:18 am

Nonstop1h 13m

Denver Intl

Wed 7/1

12:15 pm-1:31 pm

Nonstop1h 16m

$261

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Fri 5/1

5:15 am-6:36 am

Nonstop1h 21m

Denver Intl

Mon 5/4

12:15 pm-1:30 pm

Nonstop1h 15m

$261

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Thu 4/2

2:15 pm-3:36 pm

Nonstop1h 21m

Denver Intl

Sun 4/5

12:15 pm-1:30 pm

Nonstop1h 15m

$261
Cheapest one-way
Quickest one-way

Rock SpringsDenver

RKS - DEN

RKSDEN

Rock Springs Sweetwater County

Fri 4/3

5:15 am-6:36 am

Nonstop1h 21m

$198

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 14 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 March.
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, March is the cheapest month in which you can book a flight from Rock Springs to Denver (average of $101). Flying from Rock Springs to Denver in June is currently the most expensive (average of $357). 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 March 10, 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.

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 March 10, 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
9,409 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,409 reviews
United Airlines
7.4
Good
9,409 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

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 8 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 30m. 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 $240, was found to be the cheapest airline from Rock Springs to Denver.. United Airlines is currently priced 21% 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 (86%) or United Airlines (86%) 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 $197. On average you can expect to pay $377. 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, March is the cheapest month in which you can book a flight from Rock Springs to Denver (average of $101). Flying from Rock Springs to Denver in June is currently the most expensive (average of $357). 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
Black Hawk
Lakewood
Broomfield
Westminster
Golden
Centennial
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Central City
Cripple Creek
Winter Park
Glendale
Manitou Springs
Frisco
Fort Morgan
Brighton
Evergreen

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 March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$240Average$323FlexibilityNo cancel feeOn-time69%

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